I drove OTR for 35+ years and have had many a different radio, and as much as it pains me to say, there are "a lot" of "fly-by-night" radio mechanics out there that wouldn't know there butt from a hole in the ground! It's refreshing to see see someone that has the knowledge and skill to correctly repair a radio correctly. Thank You Sir!!!
Mr Carlson, as an advanced degree rf engineer with 30 years of industry experience and 10 years of college teaching (and 45 years of Ham Radio) I am absolutely amazed and impressed with both your technical knowledge and your ability to express it. I have never watched one of your videos without learning something (that I probably should have known 20 years ago). You are truly a one of a kind individual and I hope you will continue your path! Your videos should be required viewing for any Electronic course of study.
No such this as an RF Engineer. ALso, no such thing as an "Advanced degree". Did you mean a master's degree or a doctorate perhaps? Personally, i'm an Electronic Eng. My masters was with HONS. So yeah man, no such think like what your claiming in Scotland. Very interesting. Can you let me know where you studied, please Randy? I would like to perhaps get another few years under my belt and would be interested at looking at "RF Engineer" channel. Thanks in Advance. Merry XMas.
My wife happened to watch a bit of this video over my shoulder, and she says, "My gosh it's like watching paint dry". But then you have to know that she explained automotive jumper cables as being colored like her check book. Red is negative because you're negative when your check book is in the red. Black is positive because money is high when your check book is in the black. I just facepalmed and said, "yes dear." Keep up the wonderful teaching, Mr. Carlson. Most of us appreciate your efforts.
I am a S/W engineer by profession, not a ham or hardware engineer but I found the whole video very interesting and highly watchable. Its obvious you are a seasoned professional in the way you approach, diagnose and repair, and you also have a crystal clear way of communicating with your audience. I undedrstood your circuit explanations and I watched for the whole 2 hours. Really enjoyed it. thank you.
I was in the tv repair business for 35 yrs, was great when you could get into trouble shooting circuitry, I'll say this, you have a complete grasp on electronics theory... I only wish I invested on more extensive equipment as you have and delved into the theory of troubleshooting.... Unfortunately, it becomes a quantity business not Quality... You are a fine technician and a true master at electronic theory. I'm glad I'm able to follow along , however, your knowledge far exceeds mine and my patients have wained over the yrs.... You sir are a master at this craft. P.S..... I to hated when I would get a T.V. that was butchered by another shop and the customer paid that other shop a ton of money only to have it fail in a month and then they wouldn't stand behind their repair, I would end up fixing it for half the cost out of sympathy for the customer and bat my brains out fixing the problems caused by other tech. Good luck Mr. C.. I subbed awhile back.
Ret tv repairman began as a kid with a teletone 7in b/w tv with oil magnifier.still have a dream of the white 13in ge that the 38he7 socket would fall out of the PC. My friend another tech said we had a good run while it lasted he has left us .I ret 2007 .a dentist I knew said when I ret.i never want to look in anybody's mouth again.i only repair them in my sleep now . First color ctc4 1954 .
Excellent diagnosis and fixing of the debauchery. In order to hold off the PNP in the RF switch (and ensure it is held off) a 10K ohm resistor from base to ground would be a good design consideration. Also, for diagnostics, two LEDs would be good to have on the board! Great job, and I love the stripline design to the SO239's!!!
Mr Carlson, I admire your ability to be a producer, director, cinematographer, and screen writer of technical documentaries able to attract and speak to an audience of all levels of proficiency. Other creators try, but only you make this so flawless. I imagine you must travel quite far to obtain the equipment for your shows, given that it may be too bulky and fragile to be trusted to either airlines or package carriers. I used to do the same for lathes and other machine shop equipment. The drive was a pleasure when I was looking forward to hauling back a milling machine or surface grinder.
I have no idea why RUclips recommended this to me but my dad was a HAM radio enthusiast and electronics repair tech and I miss this stuff so much. He was extremely passionate and thorough with his work and your descriptions and even criticisms remind me so much of him.
Just learn an get a license... i had done those 35years ago and will not miss this - even i am actually not able to practise this bceause i am to busy. But i am build a new antenna rotor controller and hope this will be finished enad of the year. The most time consuming part of the entire project is the programming of the embedded microcontroller. It's crazy how the steps changed in the last 40 years to get a device ready to work.
I learned electronics in the Navy many years ago (mid-80's) and by the time we finished advanced electronics we could tell the purpose of every electronic component in a fire control radar, IFF transponder, TACAN receiver, etc. It was the most excellent electronics training! I watched the entire video and it took me right back to those days! Absolutely love your logical approach and explanations, and your RF switching board is amazing - better than factory!! Thank you for taking the time to produce and record this very informative video - and I don't even own an FT-1000!
Id never understand more then 2-3 % of what you say about anything I've seen you repair. But if there is anyone that has a chance to teach me atleast some general knowledge on tech repair its you. Respect Mr Carlson
Fascinating! Grew up playing with radios, father is a radio amateur. Been an Avionics engineer for almost 31 years and my favourite part of the job is troubleshooting!
After watching this I feel like I stayed at a Holiday Inn. Now if I could have you teach all the stuff in electronics courses that I figured was beyond my understanding maybe I’d have been able to tackle this line of work. It just seemed that when I thought I might be able to really start learning it life events forced me to place learning it on pause. It would be great to learn the best path and in the proper order to grasp the operation of circuits and what each component can do when laid out correctly. I took computer programming while at a vocational school years ago and felt at home designing programs in BASIC, COBAL, etc. It was always frustrating that I couldn’t grasp electronics at the time. I keep hoping the reason is I didn’t have the right teacher.
Yeah this guy is mad scientist smart ass whip! I've been an electrician and hobbyist for decades and I still have to pause the video and google something, learn something new every video.
I've always been interested in electronics and it's very refreshing to watch someone with high level skills not talking down to his audience. Your intelligence and logic repaired this transeiver. Plus you had the ability to provide modifications that would ensure the owner would have many trouble free QSO's to come. Thank you for taking the time to do this video.
What one learns from your videos: 1) How important it is to have the proper test gear and know how to use it. 2) There is no such thing as too much background information, learning about electronics never ends. 3) Removal and replacement of parts/boards/cables can be a real bear, a schematic doesn't show how to take things apart properly so noting how things are before disassembly is always a good idea. 4) Patience is a must, stay cool and never rush.
I worked for British Telecom in the UK for many years. The 'Strowger' system was being replaced by the 'Crossbar' (nobody really knew who it worked, seriously, but it did) system in the telephone exchanges. I was sent to college in the early 1980s and learnt a huge amount of Telecommunication Radio electronics. Here I am in November 2020 understanding almost everything in this video. You are a great teacher.
That's the second 2 hour video I've watched this morning and the time just flew by, I was in this business in the 70's and 80s but not to your level of expertise and perfection.
I stumbled across this video by accident . I'm a licenced operator so anything radio related has my interest. I don't even know what to say that would express how much I'm impressed . You're the Doc Brown of radio repair and radio theory . Absolute professional on the highest level . I feel accomplished when I can solder two wires together , and I still put some heat shrink around it to hide the fact it looks like I soldered it with my feet while blindfolded . You definitely found your calling in life , not many people can say that . I'll be watching more videos , hope you're still doing well and on the air cause this video is 5 years old .
This guy is fantastic exp[aining how he is backing his repair down backward toward the damaged part that is causing the broken part ort the open circuit. He is an excellent teacher. I could go to a college class that he would teach thank you.
I hope the owner of the radio watched it. what a mess inside. This guy is a professional and I love how he tided the radio up. my fist video from him 2hr and loved it all.
Good Lord!!! What else are you completely mind blowing at doing???? You make me feel like a child watching you work!! Your meticulous ability to trouble-shoot electronics is mind blowing!!
Well the RUclips recommendation placed this into my front page today even though it's not a new video, and I really enjoyed it. I did a bit of ham radio repair work as a young tech doing freelance repair from my home shop back in the late 1980s found this to be a refreshing reminder of some of the interesting stuff I got into. I understand what I'm looking at much better today than in those days, but I'm hardly doing any bench repair any more. As a broadcast engineer working with many sites in the field I'm doing a lot more module swapping and spare gear management any more, compared with the old days of component level troubleshooting. I enjoy this kind of vicarious living ;-) Thanks for a good couple of hours, I'm still geeky enough to enjoy this kind of thing a lot.
It is absolutely amazing to me that that huge, beautiful radio was brought down by one little voltage regulator!!!!! It's even more amazing to watch how you diagnosed that. Holy smoke, Mr. C! You are something else!
There are $10k servers and $10 knick-knacks alike brought down by a shorted failure of a $0.05 ceramic multilayer capacitor. Usually it’s the cheap stuff that fails, possibly bringing down more expensive parts with it. Like said capacitor burning a spot on a 10 layer circuit board that then takes $200 in tech time to repair :)
The fluctuation in the regulator wasn't enough to bring it down. Notice he never showed how the voltage was once the regulator was replaced? The main issue was the harness unplugged for the transmitter and the antenna board for antenna B.
A gracious and kind wise man once said to “ when you let the smoke out of your components It’s really hard to put the smoke back in”. Thank you for your teachings as well
With several of these era transcevers, you could cut one wire and the unit became general coverage TRANSMIT as well as receive... In the late '70's I watched a old tech do this for one of my CB Crazy friends. The local hams went themselves crazy looking for him which resulted in his cb friends getting into the local ARRL club's repeater...my brother said it was a howl! CB memories.....
This is amazing. I could barely drag myself away to go to bed. It was like a radio repair version of the Anabasis! I never would have thought I could watch a technical talk this long. There is something scary about your ability to make this so watchable. You have mojo. You are some kind of wizard.
Hi Paul: I'm trying to imagine how HAPPY the owner of this radio was when you gave it back to him especially if he have seen this video! We share about the same philosophy about electronic repairs. Of course my knowledge is quite a way from yours (I'm just technician not an engineer) but when I repair audio amplifiers I always look if I can improve it at a reasonable cost. A lot of time, internal wiring is much too small and some electrolytic capacitors have a too low values while there is amply room to put larger ones. Sometime I even find voltage regulators that have not enough heath sink and get finger burning hot! I don't hesitate to add more heath dissipation surface. 99% of the time costumer is willing to pay a little extra to have sometimes that add a HUGE sound improvement. Congratulations for you work philosophy! In my opinion, too little technician an engineers are working like this. I know, we all trying not spend to much unnecessary time on a repair when we need to earn our life but often, but little extra time makes often the result so much gratifying. Like you, I like when costumer come back, but not with the same unit for the same problem. :-) Continue your GREAT works I'm watching your videos always with pleasure !
It always amazes me when you make solid improvements to products that are high dollar, yet the engineers didn't see what you see. Amazed, not surprised.
Maybe they did see it, but the bean counter effect mentioned in the video overruled their design capability.
4 года назад+1
@@CollinBaillie Yup, thats almost certainly the case. Engineers will always try to fight for great components, but the fucking bean counters usually wont allow
@@CollinBaillie they have to spare costs, so they build in undertated relais etc. that damage soon and that for devices that cost new thousands of dollars like the yaesu ft1000mp, isnt that a betrayal.
The best instructor I ever had said rule #1- If there are problems in more than one area , identify what those sections have in common, and start there. 90% of the time it will be a power or ground problem. I spent almost 40 years in industrial electronics and I have found this to be pretty good advice.
I opened this video above 1 a.m. and continued to watch it above 3 a.m. A ham friend of mine sent me a message asking if I was sleeping. I said no. He said why don't you sleep. I said it was 3 pm US time and Mr. Carlson was teaching me how to repair the Yaesu FT-1000MP. He is stupid, haha, teaching is very good, serious, meticulous, and rigorous, salute you, Bi4iso is from China
Best 2 hours I've spent in a long time. Very entertaining and a very clear explanation. My only comment is that the Yaesu radio was designed with too many bells and whisles. I much perfer my Kenwood TS 830S. I've had to do a few repairs on the Kenwood, but they were mostly reflowing bad solder connections on PC boards. 73 VA6JRC
I appreciated your taking a dog and patiently solving all the problems. Not many of us have the opportunity to follow the design considerations of an RF circuit while looking at the physical device and the fault isolation. Thanks
Absolutely amazing repair! I was impressed with the explanations throughout the repair, very informative and you made the viewer actually be part of the repair. So many great radios do not deserve to be thrown away. Techs like you are becoming rarer and rarer. Great stuff!❤
Well done Mr Carlson, i really appreciate your knowledge and the presentation of your videos. I would think the owner of the radio is quite privileged to have you repair the radio.
I used to troubleshoot US Navy electronics in the 80's and I remember using a lot of the same techniques & equipment (remove from circuit & test). But Mr Carlson goes above & beyond with redesign and impedance testing. The hack job that he was left with, looked like some high school kid did it with the wrong tools for the job. The cleanup and reassembly made it look better than the manufacturer's work. AWESOME JOB!!!
Absolutely brilliant. Stunning clarity in your analysis and problem solving. A little bit of everything. Human nature, personal responsibility, RF, taking nothing for granted, when it pays to be curious and understand what’s in the box (relays), the importance of being able to grasp the big picture when troubleshooting, taking pride and fulfillment in leaving something in a better state than when you found it. A delight to watch.
I do this with operating systems. Spent years as a UNIX admin for clients including the US Airforce. I think sometimes you understand a system holistically, and know how to boundary test a problem, or you don't. This guy knows what's up.
It's awesome to see people like you out there, obviously with expert level knowledge on this subject, making freely available videos showing how electronics & electrical engineering principles are used in the real world to fix something. I couldn't help but look up what this radio costs because that was an insane amount of work to repair something. Your friend is lucky to have a good friend like you. I can imagine the scenario where some engineer at the manufacturer designed the antenna switching board, and the bean counters telling him to make it cost 5x cheaper or something... sad to think how many other trade-offs like this are made in the goal of making stuff cheaper, and that in such a high end radio in all other areas, the weakest link is a "simple" switch. Now you got me reading about Amateur Radio... into the rabbit hole..!
Just watched this one again, really enjoy the longer videos. Great to see the quantitative testing at the end. Looking forward to seeing how the upcoming comparison testing will be done for the Grand Receiver series.
Canada. People who speak with an American accent but pronounce English correctly......... Another good video! Love the bit about your friend and being a ham and helping him out. They're a complex radio and having someone who truly knows what they are doing work on it would be calming. Good man.
As a Canadian, I’d say Americans speak with a Canadian accent, except for a few words that folks from the East Coast and West Coast pronounce incorrectly. Most Midwestern Americans pronounce almost everything the same as most Canadians, and real Canadian/American English is Midwestern.
I stumbled across this video while randomly surfing YT and was absolutely drawn in by the clarity of thinking and analysis and explanations for the next steps taken. It really massaged my inner troubleshooter which has been developed over decades of working on cars, motorcycles, nuclear submarines (yes, really), airplanes, and the occasional ham radio. This is an awesome example of "how to troubleshoot" by thinking clearly and dividing the problem. Kudos de NW0U
Sir, I realize that this is many months/years past the posting but I am extremely impressed but your presentation. and though this is way beyond my level I learned and appreciate your skill and knowledge.
I know nothing about this stuff. I watched the whole thing. You kept it interesting. I am in awe of your knowledge and ability to to fix this mess someone else created for you. Good job.
*It's hard to imagine the abusive hardship this nice piece of equipment has gone through, proving some people have no business taking the lid off...unbelievable!!*
Hi. I have an ASS in Electrical Eng. Tech. from College from back in 1980. Also 7.5-8 years experience as an electronic tech. at Tektronix in Logic Analyzers back in the 1980-90's. I just learned more about practical troubleshooting than I ever learned from classes or working on the production line. Great to watch your excellent video on a transceiver that I have. By the way, the back of the FT-1000mp flexes so a standard fix that I did was to replace the solid wires between the relay and the SO-239's with multi-stand insulated wires. Otherwise the solid wire solder joints crack. A Standard Got-ya with these XCVR's. Terry
I'm an Electrical Engineer who went into the IT world. You've got me remembering stuff from (gesh!) 25 years ago, even if that is pretty foggy by now! You've got a talent for this kind of stuff, keep it up! I do have to say I enjoyed your "rant" at about 34 minutes. For many Americans that would simply be pointing out something. I love the general civility of Canadians; something I really miss 5 years on from this video....
I agree, this guy is just amazing...he really freezes your attention on what he's doing. The ability this guy has is pure gold. He can probably significantly improve any piece of electronics out there. He builds, repairs, modifies things like an engineer would dream of doing if the company gave him enough time to do so (but they never do).
The prior repairer is what we here refer to as "passion fingers". Really sad to see such engineered gear attacked. Really feel for the owner. At least it eventually got to a great place.
I truly appreciate your videos this is the kind of knowledge I been looking for. I struggle with learning in text book. You are amazing at explaining and teaching this kind of stuff. I am a novice, self taught, electronic junkie. Thank you! So much
I don't know anything about amps or radios and barely understand what a capacitor is. But this majestic beauty showed up in my thumbnails / previews and I had to see what it was. Ended up watching almost all of this. Lot of it is over my head but I still learned a couple of things - didn't realise relays would be rated differently in each direction for example. Really good clear tutorial style, even for us not really knowledgeable. Thanks.
Wow! That was a blast. My latest accomplishment was replacing a head gasket in a riding mower engine, which doesn't seem like much anymore.... But anyway, as a retired software engineer, I really enjoyed that presentation, and I do NOT want those 2 hours back. Thanks again, North Central Florida
Really one of the best repair videos I’ve seen in years. Love the new relay system. I did the same thing to mine and some of my friends yaesu units. I’ve been building amps and do very little radio repair. I designed all my pc boards and had everything mounted on one side so I wouldn’t have to pull the boards out to be able to check what’s happening if anything. I started learning about vacuum tube amp systems and the gentleman that I’ve been friends with for years out of Texas that took me under his wing passed away so I never got to finish my classes on building tube amps. I have a little understanding on how everything works in one but I’ve gotten to old now myself to be messing around with such high voltages. Do I just sit and was you, a master at work. Thanks again for all the great videos and your valuable time.
This is the first video I ever watched on this channel, and it had me hooked instantly! I still come back to it from time to time to rewatch it. Absolutely superb work, a true professional! 👏🏻
@@MrCarlsonsLab I meant this is the first video I saw on this channel years ago 😄 I still come back to from time to time because it’s so good. I’ve been following your fixes and repairs for quite some time! 👌🏻
Again, I don't understand much of the technical details, but I understand your logic and have to say these videos are really fun and interesting. Thanks and keep 'em coming!
I realize this video is a bit dated, no matter, it's an awesome vid - - Mr. Carlson, the owner of the FT-1000MP, beside the financial agreement, owes you a very large dept of gratitude for this fantastic resurrection - - - to put it mildly, he's one lucky guy to have obtained your services!
Ive tred to listen to others doing repairs and get lost everytime. You do an outstanding job without too much extra info and it was easy following along! So keep up the great work! Thanks so much!
I stumbled on this and was interested because I own a Yaesu FT-101D, a newer transceiver. I received a BS in EE 50 years ago and took a lot of electronics courses. Wish my professors were as good at explaining things as you are. I learned a lot and have subscribed to your channel. I've been a general for about 60 years and want to upgrade to Extra. You gave me the desire to learn again how electronics works and also the new technologies being used today in HAM radio. I need to go check out the other RUclips videos you have done. As others said here, you are a master teacher with real understanding of how things work and now things should work! Today you have 1696 comments and I don't have time to read them. Thanks again and 73, Vee W7IBB
Hats off to you, sir! You do not only have a fabulous gift of logical thinking, you have a true talent for teaching and explaining these complex systems. Thank you very much for making the efforts to share all of this with us.
Thanks for the awesome detailed tour of this great transceiver Mr. Carlson. Very nice fix with the antenna PCB. Great work. I would just like to mention that when a BJT switching transistor is driven with a base current higher than the transistor's collector current divided by the the transistor's Hfe (gain), then the transistor enters a mode termed saturation. And this means the Vce is normally way less than nominal 600mV you have mentioned. In fact, with very little base overdrive, the Vce can be as little as a few millivolts. The actual current gain of most BJT's reduces markedly with collector current approaching the (usual) rating of the device, so saturation is often not observed under these circumstances. The upside of saturation is lower ON-state power dissipation in the transistor. The downside is that emerging from saturation is VERY much slower. The earliest Fairchild integrated logic devices Resistor-Transistor-Logic (RTL) exploited saturation to minimize base drive attenuator resistive elements and it was also the reason why it was SO slow.
I've been taking things apart and putting them back together and meshing things together since the age of 7 or 8. I was an Interior Communication Electronic Technician in the Navy and I've loved electronics and Circuitry all my life. I've learned more from you watching 4 hrs of your videos than I have in the past 40 years! I'm not qualified to judge your work or even comment on your skills and know-how. Sir your videos should be required viewing in all classes. I'm really lucky to have found your videos and I'm going to be a life long subscriber. Thank you so very much.
Even though I don't understand anything you're talking about, it's a pleasure to watch amazing knowledge and professionalism. Made me feel like getting a Yaesu FT-1000MP
I have mixed feelings over this video. On the one hand it makes me remember how happy I was repairing basket case radios that others gave up on. On the other hand it makes me sad that I can't anymore due to a stroke and loss of dexterity. At any rate, GREAT video Mr. Carlson!!!!
Wow... I have a Masters in Electronics and Computer Science from back in 1983 and have done a lot of work in the field over the years... I can tell you this... you know your stuff Carlson !!!! Im learning from you my friend :-) very good !!!
I know that you mentioned that owner being a friend. I hope that he will make this job worth your time, after all, you re-engineered his xcvr, to better than new condition. I really enjoyed the lesson.
Great stuff! I watched all of it after watching your repair and fabrication of another PCB for the SONY Radio. Your knowledge and skill exceptional to say the very least! Your workshop is top notch!
As a trade school EET I actually work as a Controls Engineer, but enough background. Have to tell you how much I enjoyed and appreciated your video, very informative and I'll give it 3 thumbs up 👍👍👍. TY keep up the great work !!
Clear concise and easy to understand , What is the Fault ? , Remedial diagnosis , Cause and effect then back trace bit by bit, a bit daunting for many but when explained in this fashion and the reasons why things function the way they do as well as the reasons for testing in particular ways , is IMHO a great learning tool . One that many Electronics Lecturer's would do well to learn from . I have several Transceiver's in my Shack and using Mr Carlson's methodical and Logical method has allowed me to diagnose and repair many little faults and issues before they became problems. Yes this might be a little long as far as a tutorial goes BUT if you wanna do it right and do it right the FIRST time which should have been done, then you MUST take the time to understand the Radio as well as the theory behind why things are done in a certain way . I concur with Schematic's from Yaesu their Cabling and Socket numbering sucks . Being a general mechanic I too share the frustration of having jobs turn up that have stumped many before me and have to wade through a lot of junk to get to the common point and then work back, it is very frustrating. Well Done Sir
OMG -So impressed by your presentation. Doing a little soldering and discovered your video series. Just reminded me about how little I really know. Wish there were more techs as good as you out there.THX
This video is just totally amazing, Mr Carlson your a great instructor and I am so glad I stumbled upon this video and channel. Like other commenters your professionalism and knowledge makes me feel like I am back at the Military Kindergarten in Orlando Florida learning of basic electronics for the Navy and then again in Great Mistakes Illinois. For me after 24 years working military electronics (commo and radar), your comments on the last person who was in this radio are so professional, I would have just trashed um and told the customer you've been taken. Your attention to detail and OCD is superior and I would have loved to have had worked with you. "good enough for Government work' just doesn't cut it; you went back and re made all the connections for perfection as if lives depended upon it; just what I enforced in my shop.
Good enough for government work used to be a compliment. Good enough for government meant the best there is. It is a shame people have come to let it mean the opposite.
His knowledge is just amazing!!! A far cry above what I learned about electronics in my seventh grade electronics lab class in 1962!! Wiring up my complex model railroad has been a challenge. Have a hidden short I am investigating!🚂
Excellent video, great description. I don’t even have one of these radios but I found the process you went through was superb. Shame the original designers were so keen on saving a small number of $$ and made something that only lasts a short while. Something this expensive should last forever!
Beautiful radio! I've always wanted one of these. I'll never own one although it's been on my bucket list for a while. You have a great talent for fixing electronics. My hat's off to you.
*Mr. Carlson, you are truly a genius...we're just gobsmacked by what you know...WOW...VERY IMPRESSIVE TO SAY THE LEAST!!* *I personally appreciate your ethics and how you go about any of these processes even though I don't understand most, but can follow along to some extent.* *You could have been a brain surgeon, but then again, you already are in the electronic field!* *I really appreciate you and your incredible skills to do what you do...as always, many thanks for sharing your microcosm world of electronics and repairing the impossible.* ;-)*
Thank you for your in-depth repair job on this radio. I have a Kenwood TS-520 purchased new in 1975 and has been received very good care. However, it has picked a "bug" in the receiver - - has noise/distortion in the receiver. I think it is something minor. Your video has give me a number of ideas. Great Job!! Thank you, Jim
I HONESTLY DON'T THINK I'M ALL THAT MUCH MORE INTELLIGENT THAN WHEN I BEGAN WATCHING THIS.. BUT- WHAT A WAY TO SPEND 2 HRS!!! CAPTIVATING AS ALL HECK!! -I DON'T EVEN KNOW HOW I GOT HERE. :) YOU'RE A VERY SMART GOOD SIR, AND I LIKE YOUR CHANNEL. SUBSCRIBED!
Phenomenal information and instruction! Thank you! I am also enthused by your efforts in quality and craftsmanship, truly inspiring to those of us who began to believe such qualities to be of a dying type or wholly nonexistent. The in-depth information, thought process and insight you deliver is worth its proverbial weight in gold. All the best.
@@MrCarlsonsLab hello young man boy this video was very very over my head lol I’m a good mechanic but when it comes down to this top electronic stuff I am no winner at it. Have a question if I have a radio like that can I mail it to you you fix it charge me on a credit card I sent you a check would you do that or do you just do things around your area because I live in Dallas Texas. So can you let me know if you’re willing to work on a video from here to Texas people in the reason I want you to work on it is there is a lot of repair shops around here they will take you for almost every penny you got not only that it’ll make it even worse there’s nobody out there just like you here in Texas and I promise you what I’m telling you I would not lie to you. Please let me know if you’re willing to do that I can give you my email address that way we can communicate without nobody interfering in our conversation God bless you young man I pray to the Lord Jesus Christ to bring you lots of love peace and prosperity for your family and friends bye for now✝️✝️✝️
I've only read about ham radio and looked at the devices in stores, yet I watched this entire video for the pleasure of seeing such an expert as yourself and a sentimental remembrance of seeing these Yaesus for sale when they were new.
Must say I know nothing about what you was doing but can tell you would make a great teacher. Your troubleshooting skill are top notch and knowledge shows. How you explain stuff made me to be able to understand some. Loved how you used your fingers to explain a switch when the diagram wasn’t that good. Electronics has always fascinated me but don’t have the skills to really comprehend. Still I loved watching you troubleshoot as that what I love to do when I’m at work or home.
Same here, people like us don't care if it's not feasible or cost effective to work on friends stuff, we just like tinkering with things and helping our friends
That's true, I always try to find time to help out friends, and it's mutual. But, and anyone doing electronics, electrical, computer, etc repairs, probably knows this... You have to learn to be assertive and reasonable, or you'll be doing free work for "friends" all the time.
Excellent troubleshooting. Thank you. I spent years working on military radios in the army, including high power transmitters. Thoroughly enjoyed this session.
I have an understanding of electronics, that's about it. To watch someone diagnose and explain is one thing. To design, construct and put into service is another. Exceptional video!
The quiet confidence of someone who has a complete understanding of their trade. I slowly continue to learn. Thank you!
Engineering is not a “trade”. It’s an occupation.
If I could go back in time and be a kid again, I would want you to be my electronics teacher. Excellent work.
You got that right…. Very definitive and practical advice
Totally agree with you.
I drove OTR for 35+ years and have had many a different radio, and as much as it pains me to say, there are "a lot" of "fly-by-night" radio mechanics out there that wouldn't know there butt from a hole in the ground! It's refreshing to see see someone that has the knowledge and skill to correctly repair a radio correctly. Thank You Sir!!!
sad part is how do we know who is reputable now days
This film is like defending a doctoral dissertation, everything is very detailed. Thank you.
Mr Carlson, as an advanced degree rf engineer with 30 years of industry experience and 10 years of college teaching (and 45 years of Ham Radio) I am absolutely amazed and impressed with both your technical knowledge and your ability to express it. I have never watched one of your videos without learning something (that I probably should have known 20 years ago). You are truly a one of a kind individual and I hope you will continue your path! Your videos should be required viewing for any Electronic course of study.
Lll
@@ronidartez zc ଫାବ୍ y
Ok p
No such this as an RF Engineer. ALso, no such thing as an "Advanced degree".
Did you mean a master's degree or a doctorate perhaps?
Personally, i'm an Electronic Eng. My masters was with HONS.
So yeah man, no such think like what your claiming in Scotland.
Very interesting. Can you let me know where you studied, please Randy?
I would like to perhaps get another few years under my belt and would be interested at looking at "RF Engineer" channel.
Thanks in Advance.
Merry XMas.
So, you mean you are 125 years old?
My wife happened to watch a bit of this video over my shoulder, and she says, "My gosh it's like watching paint dry". But then you have to know that she explained automotive jumper cables as being colored like her check book. Red is negative because you're negative when your check book is in the red. Black is positive because money is high when your check book is in the black. I just facepalmed and said, "yes dear." Keep up the wonderful teaching, Mr. Carlson. Most of us appreciate your efforts.
your wife needs replacement
I am a S/W engineer by profession, not a ham or hardware engineer but I found the whole video very interesting and highly watchable. Its obvious you are a seasoned professional in the way you approach, diagnose and repair, and you also have a crystal clear way of communicating with your audience. I undedrstood your circuit explanations and I watched for the whole 2 hours. Really enjoyed it. thank you.
You're very welcome Michael!
I was in the tv repair business for 35 yrs, was great when you could get into trouble shooting circuitry, I'll say this, you have a complete grasp on electronics theory...
I only wish I invested on more extensive equipment as you have and delved into the theory of troubleshooting....
Unfortunately, it becomes a quantity business not Quality...
You are a fine technician and a true master at electronic theory.
I'm glad I'm able to follow along , however, your knowledge far exceeds mine and my patients have wained over the yrs....
You sir are a master at this craft.
P.S.....
I to hated when I would get a T.V. that was butchered by another shop and the customer paid that other shop a ton of money only to have it fail in a month and then they wouldn't stand behind their repair, I would end up fixing it for half the cost out of sympathy for the customer and bat my brains out fixing the problems caused by other tech.
Good luck Mr. C..
I subbed awhile back.
Ret tv repairman began as a kid with a teletone 7in b/w tv with oil magnifier.still have a dream of the white 13in ge that the 38he7 socket would fall out of the PC. My friend another tech said we had a good run while it lasted he has left us .I ret 2007 .a dentist I knew said when I ret.i never want to look in anybody's mouth again.i only repair them in my sleep now . First color ctc4 1954 .
Excellent diagnosis and fixing of the debauchery.
In order to hold off the PNP in the RF switch (and ensure it is held off) a 10K ohm resistor from base to ground would be a good design consideration. Also, for diagnostics, two LEDs would be good to have on the board! Great job, and I love the stripline design to the SO239's!!!
Mr Carlson, I admire your ability to be a producer, director, cinematographer, and screen writer of technical documentaries able to attract and speak to an audience of all levels of proficiency. Other creators try, but only you make this so flawless. I imagine you must travel quite far to obtain the equipment for your shows, given that it may be too bulky and fragile to be trusted to either airlines or package carriers. I used to do the same for lathes and other machine shop equipment. The drive was a pleasure when I was looking forward to hauling back a milling machine or surface grinder.
I have no idea why RUclips recommended this to me but my dad was a HAM radio enthusiast and electronics repair tech and I miss this stuff so much. He was extremely passionate and thorough with his work and your descriptions and even criticisms remind me so much of him.
W
Just learn an get a license... i had done those 35years ago and will not miss this - even i am actually not able to practise this bceause i am to busy. But i am build a new antenna rotor controller and hope this will be finished enad of the year. The most time consuming part of the entire project is the programming of the embedded microcontroller. It's crazy how the steps changed in the last 40 years to get a device ready to work.
I learned electronics in the Navy many years ago (mid-80's) and by the time we finished advanced electronics we could tell the purpose of every electronic component in a fire control radar, IFF transponder, TACAN receiver, etc. It was the most excellent electronics training! I watched the entire video and it took me right back to those days! Absolutely love your logical approach and explanations, and your RF switching board is amazing - better than factory!! Thank you for taking the time to produce and record this very informative video - and I don't even own an FT-1000!
Get ready for love activation!
Id never understand more then 2-3 % of what you say about anything I've seen you repair. But if there is anyone that has a chance to teach me atleast some general knowledge on tech repair its you. Respect Mr Carlson
Fascinating! Grew up playing with radios, father is a radio amateur. Been an Avionics engineer for almost 31 years and my favourite part of the job is troubleshooting!
Absolutely great. Fascinating presentation! Thank you from New Zealand Mr Carlson
Glad you enjoyed it!
i watched 2 hours of repair video but, i feel smarter now...if only many videos about electronics were like this.
congratulations.
jimis04 Thanks! Glad you enjoyed the video.
Jimis04 there are many videos of similar quality and clarity... they happen to be also MrCarsonLab videos. :)
After watching this I feel like I stayed at a Holiday Inn. Now if I could have you teach all the stuff in electronics courses that I figured was beyond my understanding maybe I’d have been able to tackle this line of work. It just seemed that when I thought I might be able to really start learning it life events forced me to place learning it on pause. It would be great to learn the best path and in the proper order to grasp the operation of circuits and what each component can do when laid out correctly. I took computer programming while at a vocational school years ago and felt at home designing programs in BASIC, COBAL, etc. It was always frustrating that I couldn’t grasp electronics at the time. I keep hoping the reason is I didn’t have the right teacher.
Yeah this guy is mad scientist smart ass whip! I've been an electrician and hobbyist for decades and I still have to pause the video and google something, learn something new every video.
I've always been interested in electronics and it's very refreshing to watch someone with high level skills not talking down to his audience. Your intelligence and logic repaired this transeiver. Plus you had the ability to provide modifications that would ensure the owner would have many trouble free QSO's to come. Thank you for taking the time to do this video.
Aaaaaaaa
What one learns from your videos: 1) How important it is to have the proper test gear and know how to use it. 2) There is no such thing as too much background information, learning about electronics never ends. 3) Removal and replacement of parts/boards/cables can be a real bear, a schematic doesn't show how to take things apart properly so noting how things are before disassembly is always a good idea. 4) Patience is a must, stay cool and never rush.
I worked for British Telecom in the UK for many years. The 'Strowger' system was being replaced by the 'Crossbar' (nobody really knew who it worked, seriously, but it did) system in the telephone exchanges. I was sent to college in the early 1980s and learnt a huge amount of Telecommunication Radio electronics. Here I am in November 2020 understanding almost everything in this video. You are a great teacher.
That's the second 2 hour video I've watched this morning and the time just flew by, I was in this business in the 70's and 80s but not to your level of expertise and perfection.
I stumbled across this video by accident . I'm a licenced operator so anything radio related has my interest. I don't even know what to say that would express how much I'm impressed . You're the Doc Brown of radio repair and radio theory . Absolute professional on the highest level . I feel accomplished when I can solder two wires together , and I still put some heat shrink around it to hide the fact it looks like I soldered it with my feet while blindfolded . You definitely found your calling in life , not many people can say that . I'll be watching more videos , hope you're still doing well and on the air cause this video is 5 years old .
This guy is fantastic exp[aining how he is backing his repair down backward
toward the damaged part that is causing the broken part ort the open circuit. He is an excellent teacher. I could go to a college class that he would teach thank you.
@@TheWinkster5185 2
⁹
😘3rrw,🥰
I hope the owner of the radio watched it. what a mess inside. This guy is a professional and I love how he tided the radio up. my fist video from him 2hr and loved it all.
Welcome Neil, and thanks for your comment.
Do you repair comms radios
Outstanding performance! Marconi would be very proud of you!
Good Lord!!! What else are you completely mind blowing at doing???? You make me feel like a child watching you work!! Your meticulous ability to trouble-shoot electronics is mind blowing!!
Well the RUclips recommendation placed this into my front page today even though it's not a new video, and I really enjoyed it. I did a bit of ham radio repair work as a young tech doing freelance repair from my home shop back in the late 1980s found this to be a refreshing reminder of some of the interesting stuff I got into. I understand what I'm looking at much better today than in those days, but I'm hardly doing any bench repair any more. As a broadcast engineer working with many sites in the field I'm doing a lot more module swapping and spare gear management any more, compared with the old days of component level troubleshooting. I enjoy this kind of vicarious living ;-) Thanks for a good couple of hours, I'm still geeky enough to enjoy this kind of thing a lot.
Glad you enjoyed Mark!
It is absolutely amazing to me that that huge, beautiful radio was brought down by one little voltage regulator!!!!! It's even more amazing to watch how you diagnosed that. Holy smoke, Mr. C! You are something else!
Thanks Charles!
Charles The Hammer Martel you should have seen the episode where a radio was brought down by glue that went conductive over time.
There are $10k servers and $10 knick-knacks alike brought down by a shorted failure of a $0.05 ceramic multilayer capacitor. Usually it’s the cheap stuff that fails, possibly bringing down more expensive parts with it. Like said capacitor burning a spot on a 10 layer circuit board that then takes $200 in tech time to repair :)
The fluctuation in the regulator wasn't enough to bring it down. Notice he never showed how the voltage was once the regulator was replaced? The main issue was the harness unplugged for the transmitter and the antenna board for antenna B.
I am in awe of his knowledge, experience and ability to communicate.
A gracious and kind wise man once said to “ when you let the smoke out of your components It’s really hard to put the smoke back in”. Thank you for your teachings as well
With several of these era transcevers, you could cut one wire and the unit became general coverage TRANSMIT as well as receive...
In the late '70's I watched a old tech do this for one of my CB Crazy friends. The local hams went themselves crazy looking for him which resulted in his cb friends getting into the local ARRL club's repeater...my brother said it was a howl! CB memories.....
This is amazing. I could barely drag myself away to go to bed. It was like a radio repair version of the Anabasis! I never would have thought I could watch a technical talk this long. There is something scary about your ability to make this so watchable. You have mojo. You are some kind of wizard.
Hi Paul:
I'm trying to imagine how HAPPY the owner of this radio was when you gave it back to him especially if he have seen this video! We share about the same philosophy about electronic repairs. Of course my knowledge is quite a way from yours (I'm just technician not an engineer) but when I repair audio amplifiers I always look if I can improve it at a reasonable cost. A lot of time, internal wiring is much too small and some electrolytic capacitors have a too low values while there is amply room to put larger ones. Sometime I even find voltage regulators that have not enough heath sink and get finger burning hot! I don't hesitate to add more heath dissipation surface. 99% of the time costumer is willing to pay a little extra to have sometimes that add a HUGE sound improvement.
Congratulations for you work philosophy! In my opinion, too little technician an engineers are working like this. I know, we all trying not spend to much unnecessary time on a repair when we need to earn our life but often, but little extra time makes often the result so much gratifying. Like you, I like when costumer come back, but not with the same unit for the same problem. :-)
Continue your GREAT works I'm watching your videos always with pleasure !
It always amazes me when you make solid improvements to products that are high dollar, yet the engineers didn't see what you see. Amazed, not surprised.
Thanks!
Maybe they did see it, but the bean counter effect mentioned in the video overruled their design capability.
@@CollinBaillie Yup, thats almost certainly the case. Engineers will always try to fight for great components, but the fucking bean counters usually wont allow
@@CollinBaillie
they have to spare costs, so they build in undertated relais etc. that damage soon and that for devices that cost new thousands of dollars like the yaesu ft1000mp, isnt that a betrayal.
@@MrCarlsonsLab You're Welcome.
The best instructor I ever had said rule #1- If there are problems in more than one area
, identify what those sections have in common, and start there. 90% of the time it will be a power or ground problem. I spent almost 40 years in industrial electronics and I have found this to be pretty good advice.
I opened this video above 1 a.m. and continued to watch it above 3 a.m. A ham friend of mine sent me a message asking if I was sleeping. I said no. He said why don't you sleep. I said it was 3 pm US time and Mr. Carlson was teaching me how to repair the Yaesu FT-1000MP. He is stupid, haha, teaching is very good, serious, meticulous, and rigorous, salute you, Bi4iso is from China
Best 2 hours I've spent in a long time. Very entertaining and a very clear explanation.
My only comment is that the Yaesu radio was designed with too many bells and whisles.
I much perfer my Kenwood TS 830S. I've had to do a few repairs on the Kenwood, but they were mostly reflowing bad solder connections on PC boards.
73 VA6JRC
I appreciated your taking a dog and patiently solving all the problems. Not many of us have the opportunity to follow the design considerations of an RF circuit while looking at the physical device and the fault isolation. Thanks
Absolutely amazing repair! I was impressed with the explanations throughout the repair, very informative and you made the viewer actually be part of the repair. So many great radios do not deserve to be thrown away. Techs like you are becoming rarer and rarer. Great stuff!❤
Well done Mr Carlson, i really appreciate your knowledge and the presentation of your videos. I would think the owner of the radio is quite privileged to have you repair the radio.
I used to troubleshoot US Navy electronics in the 80's and I remember using a lot of the same techniques & equipment (remove from circuit & test). But Mr Carlson goes above & beyond with redesign and impedance testing. The hack job that he was left with, looked like some high school kid did it with the wrong tools for the job. The cleanup and reassembly made it look better than the manufacturer's work. AWESOME JOB!!!
Absolutely brilliant. Stunning clarity in your analysis and problem solving. A little bit of everything. Human nature, personal responsibility, RF, taking nothing for granted, when it pays to be curious and understand what’s in the box (relays), the importance of being able to grasp the big picture when troubleshooting, taking pride and fulfillment in leaving something in a better state than when you found it. A delight to watch.
A right on the mark comment. It encapsulates all the reasons to highly respect his expertise.
Mr. Carson's videos are like a detective mini series, but even better, there's something actually useful accomplished by the end. ;)
I do this with operating systems. Spent years as a UNIX admin for clients including the US Airforce. I think sometimes you understand a system holistically, and know how to boundary test a problem, or you don't. This guy knows what's up.
Good work I've done a few radios myself and I've got one coming broken and tx non working, so I'll fix that also ,
absolutely brillian coment. you know exactly what you're saying brother!
It's awesome to see people like you out there, obviously with expert level knowledge on this subject, making freely available videos showing how electronics & electrical engineering principles are used in the real world to fix something. I couldn't help but look up what this radio costs because that was an insane amount of work to repair something. Your friend is lucky to have a good friend like you. I can imagine the scenario where some engineer at the manufacturer designed the antenna switching board, and the bean counters telling him to make it cost 5x cheaper or something... sad to think how many other trade-offs like this are made in the goal of making stuff cheaper, and that in such a high end radio in all other areas, the weakest link is a "simple" switch. Now you got me reading about Amateur Radio... into the rabbit hole..!
RUclips has been recommending this video off and on for 6+ months but two hours is quite a time investment. Totally worth it, the time flew by.
Just watched this one again, really enjoy the longer videos. Great to see the quantitative testing at the end. Looking forward to seeing how the upcoming comparison testing will be done for the Grand Receiver series.
I am in absolute total respect of your clear headed fault finding skills. As a RF and Audio tech of 30 + years your a fairdinkum wiz.
Canada. People who speak with an American accent but pronounce English correctly......... Another good video!
Love the bit about your friend and being a ham and helping him out. They're a complex radio and having someone who truly knows what they are doing work on it would be calming. Good man.
We speak American over here, Canadians speak english.
@@victorkreig6089 Makes for an interesting world. It's hillarious hearing our US friends pronounce 'sol der' as 'sodder'. Weird indeed.
As a Canadian, I’d say Americans speak with a Canadian accent, except for a few words that folks from the East Coast and West Coast pronounce incorrectly. Most Midwestern Americans pronounce almost everything the same as most Canadians, and real Canadian/American English is Midwestern.
I stumbled across this video while randomly surfing YT and was absolutely drawn in by the clarity of thinking and analysis and explanations for the next steps taken. It really massaged my inner troubleshooter which has been developed over decades of working on cars, motorcycles, nuclear submarines (yes, really), airplanes, and the occasional ham radio. This is an awesome example of "how to troubleshoot" by thinking clearly and dividing the problem. Kudos de NW0U
BNCantenna a little
how did you get into airplanes & nuclear submarines?
Sir, I realize that this is many months/years past the posting but I am extremely impressed but your presentation. and though this is way beyond my level I learned and appreciate your skill and knowledge.
Thanks Edward!
This is one of the most interesting tec's out there. This gentleman should be the person teaching in tec school... Makes electronics fun...
I know nothing about this stuff. I watched the whole thing. You kept it interesting. I am in awe of your knowledge and ability to to fix this mess someone else created for you. Good job.
He must be a great friend of yours because that sure was a lot of tedious work. Not just a repair but restoration and modification.. very well done!
*It's hard to imagine the abusive hardship this nice piece of equipment has gone through, proving some people have no business taking the lid off...unbelievable!!*
All to common with Amateur radio equipment.
@@Solocat1
Not really, the guys usually baby their radios, these are expensive pieces of equipment.
There are many people on this planet we do not need alive
@@cinderswolfhound6874
only because they abuse their radios, dont ya think thats a bit to harsh??
@@cinderswolfhound6874 yes including those that took the vaccine
Excellent video, it’s been 20+ years since I have seen a tech with your skill, brilliant sir!
Thanks 👍
Hi. I have an ASS in Electrical Eng. Tech. from College from back in 1980. Also 7.5-8 years experience as an electronic tech. at Tektronix in Logic Analyzers back in the 1980-90's. I just learned more about practical troubleshooting than I ever learned from classes or working on the production line. Great to watch your excellent video on a transceiver that I have. By the way, the back of the FT-1000mp flexes so a standard fix that I did was to replace the solid wires between the relay and the SO-239's with multi-stand insulated wires. Otherwise the solid wire solder joints crack. A Standard Got-ya with these XCVR's. Terry
I'm an Electrical Engineer who went into the IT world. You've got me remembering stuff from (gesh!) 25 years ago, even if that is pretty foggy by now! You've got a talent for this kind of stuff, keep it up! I do have to say I enjoyed your "rant" at about 34 minutes. For many Americans that would simply be pointing out something. I love the general civility of Canadians; something I really miss 5 years on from this video....
I agree, this guy is just amazing...he really freezes your attention on what he's doing. The ability this guy has is pure gold. He can probably significantly improve any piece of electronics out there. He builds, repairs, modifies things like an engineer would dream of doing if the company gave him enough time to do so (but they never do).
imagine a meeting and vid as Mustie and Mr Paul get to work on some project,2 best teachers on tube.
This was not a repair.... this was a rebuild! Just amazing work!
The prior repairer is what we here refer to as "passion fingers". Really sad to see such engineered gear attacked. Really feel for the owner. At least it eventually got to a great place.
Good-Point
But most of all you have to admit he is a GURU in. Asesdment and Diagnoses ,. His knowledge of this unit is wow!!!!
I truly appreciate your videos this is the kind of knowledge I been looking for. I struggle with learning in text book. You are amazing at explaining and teaching this kind of stuff. I am a novice, self taught, electronic junkie. Thank you! So much
You're very welcome Daniel.
@@MrCarlsonsLab
Sir do you work on old car stereos? I have a 90s/ early 2000s Kenwood that I'd like to somehow add Bluetooth to it. Is that possible?
I don't know anything about amps or radios and barely understand what a capacitor is. But this majestic beauty showed up in my thumbnails / previews and I had to see what it was. Ended up watching almost all of this. Lot of it is over my head but I still learned a couple of things - didn't realise relays would be rated differently in each direction for example. Really good clear tutorial style, even for us not really knowledgeable. Thanks.
Wow! That was a blast.
My latest accomplishment was replacing a head gasket
in a riding mower engine, which doesn't seem like much anymore....
But anyway, as a retired software engineer, I really enjoyed that
presentation, and I do NOT want those 2 hours back.
Thanks again,
North Central Florida
Really one of the best repair videos I’ve seen in years. Love the new relay system. I did the same thing to mine and some of my friends yaesu units. I’ve been building amps and do very little radio repair. I designed all my pc boards and had everything mounted on one side so I wouldn’t have to pull the boards out to be able to check what’s happening if anything. I started learning about vacuum tube amp systems and the gentleman that I’ve been friends with for years out of Texas that took me under his wing passed away so I never got to finish my classes on building tube amps. I have a little understanding on how everything works in one but I’ve gotten to old now myself to be messing around with such high voltages. Do I just sit and was you, a master at work. Thanks again for all the great videos and your valuable time.
ดพพ
This is the first video I ever watched on this channel, and it had me hooked instantly! I still come back to it from time to time to rewatch it. Absolutely superb work, a true professional! 👏🏻
Welcome aboard!
@@MrCarlsonsLab I meant this is the first video I saw on this channel years ago 😄 I still come
back to from time to time because it’s so good. I’ve been following your fixes and repairs for quite some time! 👌🏻
Again, I don't understand much of the technical details, but I understand your logic and have to say these videos are really fun and interesting. Thanks and keep 'em coming!
I realize this video is a bit dated, no matter, it's an awesome vid - - Mr. Carlson, the owner of the FT-1000MP, beside the financial agreement, owes you a very large dept of gratitude for this fantastic resurrection - - - to put it mildly, he's one lucky guy to have obtained your services!
Ive tred to listen to others doing repairs and get lost everytime. You do an outstanding job without too much extra info and it was easy following along! So keep up the great work! Thanks so much!
Thanks 👍
Every time I watch this I am inspired to get my mental state together. I need to use a notebook as I work, but I am getting better.
Thank you.
You're Welcome!
I stumbled on this and was interested because I own a Yaesu FT-101D, a newer transceiver. I received a BS in EE 50 years ago and took a lot of electronics courses. Wish my professors were as good at explaining things as you are. I learned a lot and have subscribed to your channel. I've been a general for about 60 years and want to upgrade to Extra. You gave me the desire to learn again how electronics works and also the new technologies being used today in HAM radio. I need to go check out the other RUclips videos you have done. As others said here, you are a master teacher with real understanding of how things work and now things should work! Today you have 1696 comments and I don't have time to read them. Thanks again and 73, Vee W7IBB
Vee Butterfield , Moi aussi. de KQ2E
Hats off to you, sir! You do not only have a fabulous gift of logical thinking, you have a true talent for teaching and explaining these complex systems. Thank you very much for making the efforts to share all of this with us.
Thanks for the awesome detailed tour of this great transceiver Mr. Carlson. Very nice fix with the antenna PCB. Great work.
I would just like to mention that when a BJT switching transistor is driven with a base current higher than the transistor's collector current divided by the the transistor's Hfe (gain), then the transistor enters a mode termed saturation. And this means the Vce is normally way less than nominal 600mV you have mentioned. In fact, with very little base overdrive, the Vce can be as little as a few millivolts. The actual current gain of most BJT's reduces markedly with collector current approaching the (usual) rating of the device, so saturation is often not observed under these circumstances.
The upside of saturation is lower ON-state power dissipation in the transistor. The downside is that emerging from saturation is VERY much slower. The earliest Fairchild integrated logic devices Resistor-Transistor-Logic (RTL) exploited saturation to minimize base drive attenuator resistive elements and it was also the reason why it was SO slow.
I've been taking things apart and putting them back together and meshing things together since the age of 7 or 8. I was an Interior Communication Electronic Technician in the Navy and I've loved electronics and Circuitry all my life. I've learned more from you watching 4 hrs of your videos than I have in the past 40 years! I'm not qualified to judge your work or even comment on your skills and know-how. Sir your videos should be required viewing in all classes. I'm really lucky to have found your videos and I'm going to be a life long subscriber. Thank you so very much.
Even though I don't understand anything you're talking about, it's a pleasure to watch amazing knowledge and professionalism. Made me feel like getting a Yaesu FT-1000MP
I have mixed feelings over this video. On the one hand it makes me remember how happy I was repairing basket case radios that others gave up on. On the other hand it makes me sad that I can't anymore due to a stroke and loss of dexterity. At any rate, GREAT video Mr. Carlson!!!!
Wow... I have a Masters in Electronics and Computer Science from back in 1983 and have done a lot of work in the field over the years... I can tell you this... you know your stuff Carlson !!!! Im learning from you my friend :-) very good !!!
Glad you're enjoying Thomas. Thanks for your feedback!
I know that you mentioned that owner being a friend. I hope that he will make this job worth your time, after all, you re-engineered his xcvr, to better than new condition. I really enjoyed the lesson.
WOW I didn't think anything was wrong with my FT1000 MP but now I want Mr Carlson to go thru it anyway. outstanding video, Thank You.
Been designing/debugging high frequency digital boards for 40 years. Amazing how similar at lot of this is. Very interesting and relaxing to watch.
Great stuff! I watched all of it after watching your repair and fabrication of another PCB for the SONY Radio. Your knowledge and skill exceptional to say the very least! Your workshop is top notch!
Super what you did to the antenna board, the owner of this radio must be very gratefull to you, you put so much time into it!
As a trade school EET I actually work as a Controls Engineer, but enough background.
Have to tell you how much I enjoyed and appreciated your video, very informative and I'll give it 3 thumbs up 👍👍👍.
TY keep up the great work !!
Clear concise and easy to understand , What is the Fault ? , Remedial diagnosis , Cause and effect then back trace bit by bit, a bit daunting for many but when explained in this fashion and the reasons why things function the way they do as well as the reasons for testing in particular ways , is IMHO a great learning tool . One that many Electronics Lecturer's would do well to learn from .
I have several Transceiver's in my Shack and using Mr Carlson's methodical and Logical method has allowed me to diagnose and repair many little faults and issues before they became problems.
Yes this might be a little long as far as a tutorial goes BUT if you wanna do it right and do it right the FIRST time which should have been done, then you MUST take the time to understand the Radio as well as the theory behind why things are done in a certain way .
I concur with Schematic's from Yaesu their Cabling and Socket numbering sucks .
Being a general mechanic I too share the frustration of having jobs turn up that have stumped many before me and have to wade through a lot of junk to get to the common point and then work back, it is very frustrating.
Well Done Sir
Thanks for the comment Mike! More on the way :^)
Wow no comment in here yet cool
@Elon Blunt lol yup a bug in youtube caused the issue
OMG -So impressed by your presentation. Doing a little soldering and discovered your video series. Just reminded me about how little I really know. Wish there were more techs as good as you out there.THX
This video is just totally amazing, Mr Carlson your a great instructor and I am so glad I stumbled upon this video and channel. Like other commenters your professionalism and knowledge makes me feel like I am back at the Military Kindergarten in Orlando Florida learning of basic electronics for the Navy and then again in Great Mistakes Illinois. For me after 24 years working military electronics (commo and radar), your comments on the last person who was in this radio are so professional, I would have just trashed um and told the customer you've been taken. Your attention to detail and OCD is superior and I would have loved to have had worked with you. "good enough for Government work' just doesn't cut it; you went back and re made all the connections for perfection as if lives depended upon it; just what I enforced in my shop.
Thanks for your kind comment Andy!
Good enough for government work used to be a compliment. Good enough for government meant the best there is. It is a shame people have come to let it mean the opposite.
His knowledge is just amazing!!! A far cry above what I learned about electronics in my seventh grade electronics lab class in 1962!!
Wiring up my complex model railroad has been a challenge. Have a hidden short I am investigating!🚂
I was fascinated by your patience and also by your expertise. I am an electronic engineer, but I could not achieve what you do. Bravo !
Excellent video, great description. I don’t even have one of these radios but I found the process you went through was superb. Shame the original designers were so keen on saving a small number of $$ and made something that only lasts a short while. Something this expensive should last forever!
Beautiful radio! I've always wanted one of these. I'll never own one although it's been on my bucket list for a while. You have a great talent for fixing electronics. My hat's off to you.
*Mr. Carlson, you are truly a genius...we're just gobsmacked by what you know...WOW...VERY IMPRESSIVE TO SAY THE LEAST!!* *I personally appreciate your ethics and how you go about any of these processes even though I don't understand most, but can follow along to some extent.* *You could have been a brain surgeon, but then again, you already are in the electronic field!* *I really appreciate you and your incredible skills to do what you do...as always, many thanks for sharing your microcosm world of electronics and repairing the impossible.* ;-)*
Thank you for your in-depth repair job on this radio. I have a Kenwood TS-520 purchased new in 1975 and has been received very good care.
However, it has picked a "bug" in the receiver - - has noise/distortion in the receiver. I think it is something minor. Your video has give me a number
of ideas.
Great Job!!
Thank you,
Jim
I HONESTLY DON'T THINK I'M ALL THAT MUCH MORE INTELLIGENT THAN WHEN I BEGAN WATCHING THIS.. BUT- WHAT A WAY TO SPEND 2 HRS!!! CAPTIVATING AS ALL HECK!! -I DON'T EVEN KNOW HOW I GOT HERE. :) YOU'RE A VERY SMART GOOD SIR, AND I LIKE YOUR CHANNEL. SUBSCRIBED!
It's almost 4 years later and I think your friend still owns you many many beers.
Hope so also -excellent video - hope so for more usefull lessons
This guys lives for broken radios
Phenomenal information and instruction! Thank you! I am also enthused by your efforts in quality and craftsmanship, truly inspiring to those of us who began to believe such qualities to be of a dying type or wholly nonexistent. The in-depth information, thought process and insight you deliver is worth its proverbial weight in gold. All the best.
Thanks Jon! I'm glad you enjoyed.
@@MrCarlsonsLab hello young man boy this video was very very over my head lol I’m a good mechanic but when it comes down to this top electronic stuff I am no winner at it. Have a question if I have a radio like that can I mail it to you you fix it charge me on a credit card I sent you a check would you do that or do you just do things around your area because I live in Dallas Texas. So can you let me know if you’re willing to work on a video from here to Texas people in the reason I want you to work on it is there is a lot of repair shops around here they will take you for almost every penny you got not only that it’ll make it even worse there’s nobody out there just like you here in Texas and I promise you what I’m telling you I would not lie to you. Please let me know if you’re willing to do that I can give you my email address that way we can communicate without nobody interfering in our conversation God bless you young man I pray to the Lord Jesus Christ to bring you lots of love peace and prosperity for your family and friends bye for now✝️✝️✝️
Best 2 hour (FULL FEATURE😉) “movie” I could possibly watch (not only) during those Corona times we’re going through atm, I would say…😊👍🏼
I couldn't agree with you more.
I've only read about ham radio and looked at the devices in stores, yet I watched this entire video for the pleasure of seeing such an expert as yourself and a sentimental remembrance of seeing these Yaesus for sale when they were new.
Must say I know nothing about what you was doing but can tell you would make a great teacher. Your troubleshooting skill are top notch and knowledge shows. How you explain stuff made me to be able to understand some. Loved how you used your fingers to explain a switch when the diagram wasn’t that good. Electronics has always fascinated me but don’t have the skills to really comprehend. Still I loved watching you troubleshoot as that what I love to do when I’m at work or home.
"I always have time for my friends."
Same here, people like us don't care if it's not feasible or cost effective to work on friends stuff, we just like tinkering with things and helping our friends
That's true, I always try to find time to help out friends, and it's mutual.
But, and anyone doing electronics, electrical, computer, etc repairs, probably knows this... You have to learn to be assertive and reasonable, or you'll be doing free work for "friends" all the time.
Nice.
.
I absolutely love your videos. I've been restoring electronics for over 40 years and I'm am learning new stuff from you with every video. You rock!!!
Excellent troubleshooting. Thank you. I spent years working on military radios in the army, including high power transmitters. Thoroughly enjoyed this session.
I have an understanding of electronics, that's about it. To watch someone diagnose and explain is one thing. To design, construct and put into service is another. Exceptional video!