Mr Carlson, the big manufacturers should take a look at your videos. With all their millions they don't come close to the professional quality you achieve in your humble home lab. Thanks again. We are all lucky to benefit from your ability and efforts. Can't wait for the next one !
Another fantastic video, Paul! Nicely done as always, and good catch on the cable mix-up. Watching your videos, I feel like I am being schooled by a master. Thank you for the education!
I did see the coax mix-up right when you said something looks wrong here. Most of my component level repair has been digital and it's been many years. Your videos have inspired me to get into fixing radio gear. Thanks for that.
I've been a Motorola Two-Way Communications dealer/service center since '77. With that said, that FT-1000MP is something which I would not want to contemplate having to perform repairs on. Gimme an old MoTrac, or something ancient from Comco any day!!! With all of that said, that Yaesu is definitely a nicely constructed piece of equipment, and you've once again accomplished a quality job of troubleshooting and repair.
I am just beginning to set up my work bench. The equipment you have in your lab must've taken a while to acquire. Your videos are fantastic. You clearly explain the steps involved in removal and what to be careful of. You are a gifted individual in both creating the videos as well as electronics diagnostics and repair.
I always used to say the first two things to look for was anything that moves and anything someone has messed with. This video sort of proves that out. Great video , would love to have a lab of his quality.
Another interesting video. It seems one of the hardest parts of working on modern electronics is how to get them apart without making the problem worse. You made that repair look easy.
I am also so respectful of your work ... you make things look so easy ... I hope I can gain knowledge just to look after my own equipment ... my TS940 IS IN GREAT SHAPE ... BUT SLIGHTLY OFF FREQUENCY ON RX &TX ... I will be looking for a video where I will be abl to achieve a standard as good as yours ... Thanks for the videos it gives me a great insight into electronics ... Many Thanks again ... Mike ... M0csi ... Manchester. UK
I see that I am not the only one excited about another new video. Again thanks for your time and efforts taken to provide us all with such quality information.
Great video... i really appreciate your gift of logical pursuit.... having been in the radio repair business many years ago... watching many "shotgun repairs"... thanks very much !!!
Hello From Mark/N4VER. I have a Yaesu FT-920 that I had a”Freak Accident” with. My FT-920 has the outboard Behringer Eurorack UB-802 that has a pigtail cable between the EQ and the 8 pin microphone connector on the 920. I was going to disconnect the microphone pigtail and unplugged from the EQ and the tip of the plug made contact with the cabinet of another radio in which I heard a distinct “Pop”. The 920 still has normal receiver audio and the transmitter still keys manually via the “MOX Button” on the radio as well as the antenna tuner still seems to function normally. I have tried the EQ which still seems to function okay. I do realize that Yaesu has not supported this radio for quite some time now and I do realize that this radio is old - But there’s nothing out there brand new that I like as well as this FT-920 unless I maybe found a nice FT-1000MP which is still a pretty old radio. My question is, Is the audio circuit in this radio destroyed enough to trash this great old radio? I have actually watched your work with the FT-1000MP some time ago and remembered you in what you accomplished. Thanks & Best Regards DE Mark/N4VER Versailles,KY.
I know little to nothing about electronic repair. I have be watching various videos and even your video which is way over my head it is still interesting. I want to be able to repair my own computer flat screens, tv's and other run of the mill garden variety gadgets.
whoa you blew my mind with picking up the transposed filter coax - I know some shops that would have spent hours on chasing that down.....experience is the great test instrument .
Always nice to have the right tools and cables/connectors for the job...those pesky "TMP" coax connectors/jacks are hard to attach to if you want to measure something coming from or inject into a PCB. I added some homebrewed cables with BNCs on one end and the TMP on the other (RG-174 or similar small coax required). You can get the TMPs online and they're very reasonable and easy to solder/crimp onto coax. TNX for another great repair video Paul! 73 - Dino KL0S
I'm pretty sure that you do but I hope you get as much joy from making these videos and working on electronics as I do from watching these videos and working on electronics. It's simply wonderful to watch you work. 73 NE5U Mike
Another great FT-1000MP video. I guess those 9 volt regulators are a common failure in this model and something every tech working on them should definitely be aware of.
Another well documented repair. I did one of these some time back that had the same problem. The regulators seem to be a week point in this model. Like you I liberally apply heat transfer compound to the heat sink. I believe that may be what's making them go out so frequently, to much heat. Mike
Great lesson and video...Thank You! A back-to-basics video on probe construction (and the application/use of the various type's of probes) would be very much appreciated.
I do not do short wave but your presentation is great! You are a first rate tech! Guitar amps are for me, and I know you video what ever comes to you. Understandable. Keep up the good work! Thankz
I appreciate your channel. Although radios like this are not in my area of interest, it's very helpful to learn electronic troubleshooting processes. Thanks for doing what you do!
Somebody has fitted a Inrad Roofing filter Mod and got the wires crossed and not read the fitting instructions. I have just fitted one to my FT1000MP. great improvement to the imd.
Good troubleshooting Mr. Carlson. Those 78/79 series three terminal regulators require adequate heat sinking, especially when running at 75% of their rated output. These also have short circuit protection. from the Fairchild spec sheet, short circuit protection is around 250 ma. "Each type employs internal current limiting, thermal shut down and safe operating area (SOA) protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. " Interesting that even with it's built in thermal (SOA) and short circuit protection, these devices can still fail due to inadequate heat dissipation and thermal compound not being used. 14V to 9V drop across the device at 700 miliamps would indicate that at least 3.5 watts has to be dissipated by the series pass element inside the device. That would require adequate heatsinking. Your test device monster heatsink looks about right, unless there is adequate air flow around the device from the fan.
Quality Japanese electronics have a beauty to them as unique as their cars. A working piece of art. Too bad someone stuck all those filters on that one. Thanks for another great video.
Another classic repair Paul Really enjoyed that. Always fun watching you troubleshoot as you explain what is going on. And another here for going with the active probe. I have an Eico probe just like that hanging in the rack. Would be a nice project for it. Thanks for sharing and a big thumbs up. 73 Buddy
Thanks for the beautiful and easy explanation how to proceed step by step in the troubleshooting of the transceiver. One should have at least two of the instrument you used like an oscillator -generator ant the necessary h.f. Probes. You have used too. Thanks very much for the lesson.abele.suisse
Great video, as usual! I could watch your stuff all day! Keep up the good work! It would be a dream of mine for you to look at my own transceiver and see the repair process. I tried to get it fixed by numerous techs around Regina and nobody could track the problem. Can't wait for your next video! 73
Outstanding video Paul. I am also an owner of the FT1000MP. Love the radio. Maybe some day you can do a video on the weak display backlight issue that is common with these radios. Again, outstanding my man.
Paul, Another fine video. Relatively easy one this time. The VFO A problem could have been avoided by taking an image before removing any cabling. Do make a video on fitting your RF active probe into that EICO probe body. Maybe a Tech Tuesday video? :-) I'm always amazed with the sheer quantity of test gear surrounding you when you open and close your videos. WB3BJU
Synthesized ,complex japanse HF rigs are probably, in my experience as a commercial radio and broadcast technician, the most complex and challenging devices to repair. They do often have good service manuals. This rig , I will guess without watching the whole video, has a audio PS bypass capacitor open or the board has an open trace. But Will watch the whole thing later and see, thanks for great videos, very skilled and well grounded in solid circuit theory, which is my pet peeve abut today's today's Voc school grads.....:(Ahhhh... a regulator....good.
You didnt explain what those 2 cables were and why you needed to reverse them You are over my head as to your e pertise but I do have a background in electronics but wouldnt have a clue to do that level of troubleshooting I love your channel and soooo jealous of all the fancy equipment even if I dont know how to use any of them lol I restore old radios and can operate a scope and signal generator etc. VE6 RDR Great video
That was very cool. I didn't spot the VFO A cabling error. Are you just that familiar with it that it stood out so well, or is there a rationale for determining it, like actual markings, color coding, or a proximity rule (i.e., the coax plugs into the closest jack on that side)? I, too, would like to see the video of you putting the active probe into the Eico probe body.
Tnx for rep.video Paul, very enjoyable to watch. It seems that the: "Thy shall always check voltages" is of good use and fine electronicks-mantra. :) ..Didnt see the wrong put internall coaxes at first though.--so perhaps an aditional nice mantra to "Thy shall always check for other misshap-tamperings" too .. --> and you are good at check for these things in your videoes. Thanks again, apreciate very much. br,Rolf
Nice job.. I always have trouble finding 7809's... last time I was in my component store the only had 7885 regulators.... 8.5vdc... these things are great... they will work until they start smoking...
yes Paul as usual good video, and wasn't too bad getting the problem solved. Yes Paul that RF probe sounds interesting. They are hard to come by those probes, Eico's then when you find them , you need a wallet with lot of green stuff lol lol 73's
In the previous repair of this model you designed and built a circuit board to replace the factory one. You had mentioned that those boards were a at times a bit of a problem. Did you ask the owner if he wanted to upgrade to the Carlson Board? Just seems like something to do so you won't see this one on your bench again for awhile.
Mr Carlson, the big manufacturers should take a look at your videos. With all their millions they don't come close to the professional quality you achieve in your humble home lab. Thanks again. We are all lucky to benefit from your ability and efforts. Can't wait for the next one !
Mr. Carlson, another successful and wonderfully demonstrated troubleshooting system. Keep up the very professional demonstrations.
Thank you for explaining what you are doing. it's like having a guide tour to a country you have never been too!
Another fantastic video, Paul! Nicely done as always, and good catch on the cable mix-up.
Watching your videos, I feel like I am being schooled by a master. Thank you for the education!
I did see the coax mix-up right when you said something looks wrong here. Most of my component level repair has been digital and it's been many years. Your videos have inspired me to get into fixing radio gear. Thanks for that.
That was fun. Thank you Mr. Carlson.
You are very welcome Donald.
I've been a Motorola Two-Way Communications dealer/service center since '77. With that said, that FT-1000MP is something which I would not want to contemplate having to perform repairs on. Gimme an old MoTrac, or something ancient from Comco any day!!!
With all of that said, that Yaesu is definitely a nicely constructed piece of equipment, and you've once again accomplished a quality job of troubleshooting and repair.
You sir are quite gifted, very refreshing.
Thanks for your kind words orange!
Once again an excellent informative video! Well done!!!
Glad you enjoyed it!
Thank you Mr. Carlson.
You are very welcome Donald!
Another winner Paul...love to watch the troubleshooting. LOL I see old one thumb is still with you...LOL
I am just beginning to set up my work bench. The equipment you have in your lab must've taken a while to acquire. Your videos are fantastic. You clearly explain the steps involved in removal and what to be careful of. You are a gifted individual in both creating the videos as well as electronics diagnostics and repair.
I respect the way you do repairings mr. Carlson, it's just a perfect job again, congratulations!
Thank You Igor!
the most well explained elettronic video i found here on youtube.it s a pure pleasure watch your video from start to finish.
Thanks Ginger!
I always used to say the first two things to look for was anything that moves and anything someone has messed with. This video sort of proves that out. Great video , would love to have a lab of his quality.
Another interesting video. It seems one of the hardest parts of working on modern electronics is how to get them apart without making the problem worse. You made that repair look easy.
Thanks Bob!
I am also so respectful of your work ... you make things look so easy ... I hope I can gain knowledge just to look after my own equipment ... my TS940 IS IN GREAT SHAPE ... BUT SLIGHTLY OFF FREQUENCY ON RX &TX ... I will be looking for a video where I will be abl to achieve a standard as good as yours ... Thanks for the videos it gives me a great insight into electronics ... Many Thanks again ... Mike ... M0csi ... Manchester. UK
I see that I am not the only one excited about another new video. Again thanks for your time and efforts taken to provide us all with such quality information.
me again, I could watch you videos all day long.... great instructor...
Great video as always. I would like to see how you put you RF probe together.
Great video... i really appreciate your gift of logical pursuit.... having been in the radio repair business many years ago... watching many "shotgun repairs"... thanks very much !!!
The front of that thing looks so impressive 😎
I really enjoy your videos! As a FT-1000MP owner myself, I've found these videos even more interesting.
If Mr Carlson were a Marvel Comic character , electronic repair would be his super power ! Another superlative video !
LOL Thanks! Does this mean I get a cape? :^)
+Mr Carlson's Lab ....No Capes!
LOL!
Another great video Paul! You are a superb teacher and I have learned a lot from your efforts. Thank you ! Greetings from Arizona.
Thanks!
I used to repair audio amps. This video made me miss being a bench tech and troubleshooting. 73
Great bit of fault finding Paul. A pleasure to watch as always
Thank you Paul, always enjoy your troubleshooting videos.
Hello From Mark/N4VER. I have a Yaesu FT-920 that I had a”Freak Accident” with. My FT-920 has the outboard Behringer Eurorack UB-802 that has a pigtail cable between the EQ and the 8 pin microphone connector on the 920.
I was going to disconnect the microphone pigtail and unplugged from the EQ and the tip of the plug made contact with the cabinet of another radio in which I heard a distinct “Pop”. The 920 still has normal receiver audio and the transmitter still keys manually via the “MOX Button” on the radio as well as the antenna tuner still seems to function normally.
I have tried the EQ which still seems to function okay.
I do realize that Yaesu has not supported this radio for quite some time now and I do realize that this radio is old - But there’s nothing out there brand new that I like as well as this FT-920 unless I maybe found a nice FT-1000MP which is still a pretty old radio.
My question is, Is the audio circuit in this radio destroyed enough to trash this great old radio?
I have actually watched your work with the FT-1000MP some time ago and remembered you in what you accomplished. Thanks & Best Regards DE Mark/N4VER Versailles,KY.
A nice easy fix for you that Paul but only because your a genius love your videos Paul thanks for sharing.
Thanks Paul!
I know little to nothing about electronic repair. I have be watching various videos and even your video which is way over my head it is still interesting. I want to be able to repair my own computer flat screens, tv's and other run of the mill garden variety gadgets.
whoa you blew my mind with picking up the transposed filter coax - I know some shops that would have spent hours on chasing that down.....experience is the great test instrument .
Can u do a history review of the path u took to get to where u are today... Your incredible
I like your mix of vintage and (relatively) modern test gear.
Thanks Brian!
Always nice to have the right tools and cables/connectors for the job...those pesky "TMP" coax connectors/jacks are hard to attach to if you want to measure something coming from or inject into a PCB. I added some homebrewed cables with BNCs on one end and the TMP on the other (RG-174 or similar small coax required). You can get the TMPs online and they're very reasonable and easy to solder/crimp onto coax. TNX for another great repair video Paul! 73 - Dino KL0S
I'm pretty sure that you do but I hope you get as much joy from making these videos and working on electronics as I do from watching these videos and working on electronics.
It's simply wonderful to watch you work. 73 NE5U Mike
Thanks for your nice comment Mike!
I don't even know nothing about this stuff but I'm gonna buy this box.... I love tech/ gear
Another great FT-1000MP video. I guess those 9 volt regulators are a common failure in this model and something every tech working on them should definitely be aware of.
Spot on MR C.
Nice repair. Just a walk in the park for you. Thanks for the video.
Another well documented repair. I did one of these some time back that had the same problem. The regulators seem to be a week point in this model. Like you I liberally apply heat transfer compound to the heat sink. I believe that may be what's making them go out so frequently, to much heat.
Mike
Great lesson and video...Thank You!
A back-to-basics video on probe construction (and the application/use of the various type's of probes) would be very much appreciated.
I do not do short wave but your presentation is great! You are a first rate tech! Guitar amps are for me, and I know you video what ever comes to you. Understandable. Keep up the good work! Thankz
I appreciate your channel. Although radios like this are not in my area of interest, it's very helpful to learn electronic troubleshooting processes. Thanks for doing what you do!
Mr Carlson you make it look soooooo,easy,thank you very much for sharing.
Somebody has fitted a Inrad Roofing filter Mod and got the wires crossed and not read the fitting instructions. I have just fitted one to my FT1000MP. great improvement to the imd.
Super logical and precise. Definitely the kind of tech I'd want fixing anything of mine.
Paul, as usual, a great video from you. Thanks for posting.
Very good job!...Wish I had someone to repair my TS-2000.
Good troubleshooting Mr. Carlson. Those 78/79 series three terminal regulators require adequate heat sinking, especially when
running at 75% of their rated output. These also have short circuit protection. from the Fairchild spec sheet, short circuit protection is around 250 ma.
"Each type employs internal current limiting, thermal shut down and safe operating area (SOA) protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. "
Interesting that even with it's built in thermal (SOA) and short circuit protection, these devices can still fail due to inadequate heat dissipation and thermal compound not being used. 14V to 9V drop across the device at 700 miliamps would indicate
that at least 3.5 watts has to be dissipated by the series pass element inside the device.
That would require adequate heatsinking.
Your test device monster heatsink looks about right, unless there is adequate air flow around the device from the fan.
Nice methodical job, well done.
His thought process is really great and it's accompanied with a great verbal presentation. Who could ask for a better teacher? Not me. :-)
Thanks Guys!
Glad to see a new video. We missed you. I would also like to see the video on the probe.
Quality Japanese electronics have a beauty to them as unique as their cars. A working piece of art. Too bad someone stuck all those filters on that one. Thanks for another great video.
Very interested in the RF probe build Paul... I hope you do that video... This one was great by the way... as usual...
Another classic repair Paul Really enjoyed that. Always fun watching you troubleshoot as you explain what is going on. And another here for going with the active probe. I have an Eico probe just like that hanging in the rack. Would be a nice project for it. Thanks for sharing and a big thumbs up. 73 Buddy
Thanks Buddy! Those old Eico probes are great "project enclosures"
Thanks for the beautiful and easy explanation how to proceed step by step in the troubleshooting of the transceiver. One should have at least two of the instrument you used like an oscillator -generator ant the necessary h.f. Probes. You have used too. Thanks very much for the lesson.abele.suisse
Your welcome abele!
Again, clear and knowledgeable video. You have a great teaching style. Thanks again for the effort you put into these.
Great video Mr. C and a yes please on the Eico probe.
Great video, as usual! I could watch your stuff all day! Keep up the good work! It would be a dream of mine for you to look at my own transceiver and see the repair process. I tried to get it fixed by numerous techs around Regina and nobody could track the problem. Can't wait for your next video! 73
I truly enjoy you videos. Great learning tool showing hands on troubleshooting.
Outstanding video Paul. I am also an owner of the FT1000MP. Love the radio. Maybe some day you can do a video on the weak display backlight issue that is common with these radios. Again, outstanding my man.
Thanks Jim!
I love the channel. I learn something new each and every time I tune in. Glad to see you back.
Great video. Really love the repairs of the newer actual rigs. Outstanding
Kevin
Great repair and work! I'd be interested in seeing the probe build and a video dedicated to AF/RF/MOD signal probing work.
Terrific video once again......I learn a bit more each time I watch these.
All I can say is excellent video Mr Carlson! Thanks, Arnold.
WoW thats one complicated radio.
Really enjoy the troubleshooting videos Paul thanks for another one, job well done !!! Lloyd
Paul,
Another fine video. Relatively easy one this time. The VFO A problem could have been avoided by taking an image before removing any cabling.
Do make a video on fitting your RF active probe into that EICO probe body. Maybe a Tech Tuesday video? :-)
I'm always amazed with the sheer quantity of test gear surrounding you when you open and close your videos.
WB3BJU
Good work Mr C
Thank you for another great video! I'm going to watch the RF active probe video right now!
Glad your enjoying the video's.
Well done Mr. Carlson, thank you for the lesson.
Synthesized ,complex japanse HF rigs are probably, in my experience as a commercial radio and broadcast technician, the most complex and challenging devices to repair. They do often have good service manuals. This rig , I will guess without watching the whole video, has a audio PS bypass capacitor open or the board has an open trace. But Will watch the whole thing later and see, thanks for great videos, very skilled and well grounded in solid circuit theory, which is my pet peeve abut today's today's Voc school grads.....:(Ahhhh... a regulator....good.
Kenwood TS-520 was my first, hope you get one soon. Another fixed and out the door.
I enjoyed it very much, Paul. Thanks for sharing. Big thumps up. Take care
Thanks Peter!
You didnt explain what those 2 cables were and why you needed to reverse them
You are over my head as to your e pertise but I do have a background in electronics but wouldnt have a clue to do that level of troubleshooting
I love your channel and soooo jealous of all the fancy equipment even if I dont know how to use any of them lol
I restore old radios and can operate a scope and signal generator etc.
VE6 RDR
Great video
That was very cool. I didn't spot the VFO A cabling error. Are you just that familiar with it that it stood out so well, or is there a rationale for determining it, like actual markings, color coding, or a proximity rule (i.e., the coax plugs into the closest jack on that side)? I, too, would like to see the video of you putting the active probe into the Eico probe body.
Great video Mr Carlson thank you for sharing your knowledge.
Tnx for rep.video Paul, very enjoyable to watch.
It seems that the: "Thy shall always check voltages" is of good use and fine electronicks-mantra. :)
..Didnt see the wrong put internall coaxes at first though.--so perhaps an aditional nice mantra to "Thy shall always check for other misshap-tamperings" too .. --> and you are good at check for these things in your videoes.
Thanks again, apreciate very much.
br,Rolf
Nice job.. I always have trouble finding 7809's... last time I was in my component store the only had 7885 regulators.... 8.5vdc... these things are great... they will work until they start smoking...
Makes it look so simple. well done as usual
Amazing LAB this guy has. cool video and great fix
That thing is intense looking !
structured work, nice one.
Sorry for my English
you can give more info for the probe RF you use in this video
Thanks Alex
Love these videos.
Another great job, Paul.
yes Paul as usual good video, and wasn't too bad getting the problem solved. Yes Paul that RF probe sounds interesting. They are hard to come by those probes, Eico's then when you find them , you need a wallet with lot of green stuff lol lol 73's
Another awesome video, thx Paul.
Sonofagun, Paul, you got lucky again. :-) Excellent vid, my friend. Very well explained. Thanks, lad.
Regards,
John
Thanks John!
Great video! I really needed a Mr. Carlson's Lab fix! :-)
Love your videos Mr. C. Thanks as always.
In the previous repair of this model you designed and built a circuit board to replace the factory one. You had mentioned that those boards were a at times a bit of a problem. Did you ask the owner if he wanted to upgrade to the Carlson Board? Just seems like something to do so you won't see this one on your bench again for awhile.
Thank you for sharing, Paul !
Your welcome Qasim!
Another great video, highly enjoyable and informative. Thank you and well done sir.
Very Nice video Paul very well explained and great detail. Thanks for that
A new video!! Cool, can't wait to watch.
Excellent Video Mr Carlson, Thanks for posting :-)
You make it look so easy!!
Gotta love the Nixi tubes...