I've been accused of having loose screws, but keep them in a tray when dismantling these boxes. You are braver than I am having then scattered on the worktop. Years of experience & confidence I suppose. Love how methodical you are - great channel!
Great video, Dave ! I think that the cheap price syndrome has been around since the inception of all electronics equipment ! I remember as a kid, my dad obsessing over the price of having the TV repairman come out to repair our TV, as there was a house call charge on top of the repair itself!!
Gradation 120 is a lot for the job. I use exclusively metal polishing paste on a cotton cloth which I pinch to the relay contacts and polish the contacts. After that I clean them with deoxite. After such treatment the relay is like new.
Thanks a lot friend for helping with this amazing explained video. I enjoy the good sound, vinyls mainly, but I am not an audio-fool neither. Now, I going to make maintenance to my Yamaha AX-700 amplifier that I have never used since I bought it by eBay several years ago and now it sounds with really low volume. All the best wishes from Medellín, Colombia.
Good video, have a pioneer a-331 behaving exact same, sadly doesn't have jumpers and its a dinosaur of a board, but got a couple points to look for from this 👍👍
Thanks for your video. It reminds me of my Pioneer A-X720 Amp that i set aside because it was distorted. The heatsink won't warm. All power amp transistors where replaced already but give poor result.
Around 15:30, when you pressed the CD Direct button some times, inititally there was a major attenuation and difference in sound. Good call straight away saying how there are still noisy controls. When the differences became much less after operating controls mere seconds later, it was cool, anyone would have to say. Nice!
Hey Dave, have you worked on this unit before? Someone has already been in there and added a heatsink to the 4D4B41 bridge rectifier. It's a good addition and one I always do myself.
yea i like amp output section on that to me Yamaha build layout in the late 70s to 80 was realy cluttered realy packed in there this ones nice clean i was expecting to see stks in there lol!
This is good amp, "small" problem with this amplifiers is small idle current with high sensitivity speakers. I had to on Sony F419R set almost twice idle current than stated in service manual with 90dB/W/1m speakers, now have this amp excellent sound without any hear-able distortion. And of course relay, this is pain on all old amp because silver platted contacts have oxidation.
I have a Yamaha like this its switches are bad again going to clean them some time. I don't use the amp though as to much RF from my transmitter makes it turn off again.
Cleaning points on vintage motocycles or contacts in general....a rough textured business card. I add a bit of iso if required. Good troubleshhot and repair. Break out the vinyl or CD direct.
Great video. I was wondering if a VU meter can be added to this amp? Would you be able to guide me on that? I know it's a stretch goal for me :) Thank you !
I think most Audiophools have gone now. I remember at an Audio expo I was at a private room demo of some silly $2000 stones that you would place your speakers and amp on for "antivibration and correct sitting" That was together with those $800-1000 power strips that would "clean the ac current"
I have one of these ... it is the worst for dust getting into the switches and controls .... have to clean it every 6 months ... meanwhile I have a Optimus from RS bought in the early nineties ... never cleaned the controls ever.... still plays fine.
Oh Dave BTW, you mentioned something about the power supply in the AX700....is it possible or worth it to put a power supply that had more beef but not too much to fry it?
What is that brand of cleaner you have there in the white spray can? I'm not in the USA btw but am wondering if the active ingredient is in similar brands. Do you have an Amazon link? Nice cat intro and brilliantly over-the-top effects btw. :D Consider KDenLive _(especially if you ever use Linux because hardware support is better such as usage with a ps2-eyetoy webcam which costs about 1dollar at Gamestop)_ and OpenShot. So, both are also available on MSWindows and Linux and there is plenty easy documentation online. You could have loads of effects then, like a Bollywood News Channel.
That is vintage Nutrol. You can still buy it but the modern stuff is alcohol based. The old stuff was freonTF based and that is no longer made. I have 2 cans left. When it is gone it us gone.
Sneaky Yamaha with the jumpers in the back. I remember reading Bob Cordells book and he measured distortions caused the spkr relays, some being better than others, hmm. Thankfully the bottom of the main board is easily accessible - must be made before '90s.
The intro was made using an old version of Avid video studio (sold as Pinnacle studio 14) but I cut everything woth premiere, which doesn't have all the overkill special effects that are used on indian weddings but is fast. Pinnacle sold out to Coral and I never quite got the new version. I have it, I bought it, but never have really learned to use it. Also slow as mollases in january working with 4K files.
I have a ax 730 and ,these have a problem is in a protection mode,what could be a problem with her??all transistors are good right now ,what happend with her ?i have DC to one channel
Those Omrons of that vintage fail often, I replace on sight. Quality replacement costs like $8. Cleaning can work but in my experience isn’t reliable long term. 120 grit though, that will remove the dirt and oxide, and the plating too. Ouch 😙
They are a lot more than that by the time they get here. 9.00 for relay, 8.00 shipping and then fed ex adds an extra special surprise, 37.50 in broker charges. Been down that road before. I had a customer that I ordered a part from, and was assured by digikey that there were no additional fees and was assured that what I was charged was what it costs. I quoted my customer the price of the part plus shipping. Because these days if you quote too high a price for the part and they can look it up, they slam you as a crook. The part was a 5.00 part with 8.00 shipping. I charged 15 for the part including shipping. 3 weeks later I get a bill from fed ex for 37.50. I only charged 40.00 to install the part, and now I am at a loss. I saw him at a coffee shop a few weeks later and asked him how his tape deck was doing and he said great, and then I told him I got a bill from fed ex for broker charges and his response was, thats too bad, had you told me that the part was 37.50 more I would have told you to keep it. So no, I really don't give a shit these days how long something lasts. It it lasts 6 months and fails again and it come back, I charge again. I really don't care how long it lasts, because I make pretty much nothing doing this. That's the reason I got out of the business in the first place in 2003. I do repairs now more of as a favor, I don't charge allot because people will just scrap stuff if the cost is too high. Ordering in any specialty oarts these days is too expensive for the vast majority.
I agree that the paper is way too coarse, but it won't remove the plating because the contacts are not silver plated, they are silver *alloy*. I would use something between 800 and 2000 grit, because the deep scratches a 120 grit paper causes on the contacts reduces the contact area.
@@12voltvidsUse a folded strip of 600 or higher grit wet-sanding paper with some contact cleaner. Then wash the contacts with isopropanol alcohol, because contact cleaner is aggressive en will "eat" the contacts for a long time afterwards.
@@12voltvids I really enjoy watching your vids Mr Volt but sometimes I literally cringe and have to cover my eyes at the way you do things. Have you ever considered becoming a blacksmith? Love the cat btw 😺
@@tonygoodenough7407 Ever think i do things to make you cringe. These are trash can units that I get going without putting in any money because they are to show what goes wrong and what needs to be done to get them running. They are headed right back to the trash can when I am done. The majority are not paid repairs. It is donated equipment shown off as a demo. If you were doing this on your machine then by all means buy a new relay, but for this and most other repairs the equipment is not going back into service nor being sold.
I dont understand ? I have this model. The bass reglage is to low or what. Output whit max bass is not much. Is litle without loudnrs min. Example another amplif grundig r 2000 has more bass at same speaker and source. It s a trouble about yamaha or is normal like this.
What does the MM/MC switch actually do electronically and is there a danger to using an MC cartridge with an amp/receiver that doesn't have that switch or circuitry?
The MC/mm switch changes the preamp between a moving coil and a moving magnet cartridge. Moving coil is a very low output they requires much more gain than a moving magnet so if you put a moving coil on a photo that is designed for moving magnet you will have very low sound and also because the load is different the frequency response will be way off by contrast if you put a moving magnet cartridge in the moving coil position it will be overloaded loud and very low fidelity but no it won't hurt anything it will just sound like shit
My friends dad , who I got to know well , was working in a repair shop when a woman brought in a TV for repair. He was told to give her a price quote before even opening up the set to inspect it . He said to bring it across the highway to (Miss Ann the Psychic and to ask her how much it will cost to have her TV repaired . Thought this will give you a lough Thanks for Yamaha repair video , I have 2 Yamaha receivers , both with noisy pots., afraid I have bad caps on one and maybe have to take pot. apart on the other , will see ?
If I had a dollar for every question someone asks me about what is wrong with "insert device here" and some get darn nasty when I don't respond so I start removing their comments and their nasty comments and the they take offence to the post being deleted. They don't seem to realize that i am ultimately responsible for their posts and both myself and my appointed moderator will remove inflammatory or threating comments.
I know what you mean with prices of repairs... people always try to get a bargain... and if you dont comply , they usually dont want to fix it so i fix them anyway for cheap...
Well I banned him a long time ago from my channel. He makes bogus spam complaints and tries to get my channel (and several others taken down) I have been in contact with other youtubers including Dave Jones from EEVBLOG and have contacted the AbuseIPDB as have the others. Finally, and this has taken some time they have done the right thing and banned him. He is most upset that I showed the email response from Dave Jones, and has even contacted youtube to get this video removed because his "screen name" which I am not even sure is his real name was shown on my phone. Look for that to be blurred in the next couple of hours as he is attempting to get me taken down now for privacy concerns, yet he has published my name, wifes name and phone numbers, as well as the last address he could find me living at, which is actually where my sister and her family live, and where I have stuff delivered to as I don't tell anyone my real street address. That's OK for him to put my contact info out for everyone to see, but if his name shows on a video or I say his name and call him what he is, a psychopath I am reported and threatened with having my channel taken down.
Those front panel controls were extra crappy, yamaha should have stuck to making cheap keyboards :) We all make mistakes dave, very few admit it. I've never seen an amp without dusty/dull passthrough staples, most users never use add ons.
Alps made terrible controls and switches. I didn't even look at the back when I plugged it in. Owner said "doesn't work, try and fix it" Now he owes me.
OMG...using 120 grit sandpaper for cleaning gold-plated contacts from a signal relais! Contact cleaner to clean potentiometers is also not a good idea, it's too agressive and soon these potentiometers will fail again.
This is not a gold plated signal relay, it's on the speaker outputs, it's a high amp relay with silver alloy contacts. But you're right, 120 grit is way too coarse, the deep scratches it makes reduces the contact area. I'd use something between 800 and 2000 grit.
It is likely that this is the type of glue that you've mentioned. I've repaired an AX500, the smaller sibling of the AX700, and it seems that the corrosion caused by the glue was the issue in my unit and is a common point of failure on others.
There’s not much point in visually redacting the (last) name if you’re just going to blurt it out. 🤔 Still, it’s good to get rid of trolls and bullies. 🤗
See what I deal with audio equipment everything cheap run-of-the-mill type of unit and the person brings it to me I turn around and tell him it's not worth it but if it's a vintage piece of named equipment and it's a high-end piece I will talk them into getting it done right because that piece of equipment is worth saving and in the long run if they turn around they keep it it's worth it to them to get it fixed properly because they have an investment in it that if they turn around and sell it they can make that investment back and a prophet with no problem
Another unnecessarily long video to make more add money for him and boor us with his constant knob twisting. Sango66 dose the same thing on his channel.
I actually cut this down about 10 minutes. There was much more knob twisting to clean these controls than you saw, and switch cleaning that was removed.
A nice Yamaha amplifier. I have the AX900U model, and it is a solid performer and has excellent sound quality.
Great Video! I loved the way you slowed down the kitty at the end of the intro!
What a fine set of whiskers!
@@MattyEngland And zoomed in too.
I've been accused of having loose screws, but keep them in a tray when dismantling these boxes. You are braver than I am having then scattered on the worktop. Years of experience & confidence I suppose. Love how methodical you are - great channel!
Excellent, great to see a relay tuned up and re-deployed!
This was a treat. Very good amp.
nice one to see, i'm happy owner of ax640 which look almost identical to yours, so far no issues with it, brilliant amp happy with the sound
Great video, Dave ! I think that the cheap price syndrome has been around since the inception of all electronics equipment ! I remember as a kid, my dad obsessing over the price of having the TV repairman come out to repair our TV, as there was a house call charge on top of the repair itself!!
admirable instinct to find the problem!! your friend from Argentina
Gradation 120 is a lot for the job. I use exclusively metal polishing paste on a cotton cloth which I pinch to the relay contacts and polish the contacts. After that I clean them with deoxite. After such treatment the relay is like new.
Thanks a lot friend for helping with this amazing explained video. I enjoy the good sound, vinyls mainly, but I am not an audio-fool neither. Now, I going to make maintenance to my Yamaha AX-700 amplifier that I have never used since I bought it by eBay several years ago and now it sounds with really low volume. All the best wishes from Medellín, Colombia.
Good job! Interesting video!
2 amp repairs in one day HELLL YEAHHH
I really enjoy how you mix technical stuff, explanations and "People" stuff.
I was waiting for the Homer Simson Duhhh. Nice cat intro! WOW look at how those output transistors are soldered!
Nice job Dave.
Nice work .
Good video, have a pioneer a-331 behaving exact same, sadly doesn't have jumpers and its a dinosaur of a board, but got a couple points to look for from this 👍👍
Super, Greetings from Poland.
Thanks for your video. It reminds me of my Pioneer A-X720 Amp that i set aside because it was distorted. The heatsink won't warm. All power amp transistors where replaced already but give poor result.
Around 15:30, when you pressed the CD Direct button some times, inititally there was a major attenuation and difference in sound. Good call straight away saying how there are still noisy controls. When the differences became much less after operating controls mere seconds later, it was cool, anyone would have to say. Nice!
You are an inspiration dave. Thank you for your info.
I love a good Yamaha amp. 👍🏼
Hey Dave, have you worked on this unit before? Someone has already been in there and added a heatsink to the 4D4B41 bridge rectifier. It's a good addition and one I always do myself.
yea i like amp output section on that to me Yamaha build layout in the late 70s to 80 was realy cluttered realy packed in there this ones nice clean i was expecting to see stks in there lol!
This is good amp, "small" problem with this amplifiers is small idle current with high sensitivity speakers. I had to on Sony F419R set almost twice idle current than stated in service manual with 90dB/W/1m speakers, now have this amp excellent sound without any hear-able distortion. And of course relay, this is pain on all old amp because silver platted contacts have oxidation.
Makes me wish I'd kept my faulty Denon PMA-920 instead of taking it to the council recycling dump.
I have a Yamaha like this its switches are bad again going to clean them some time. I don't use the amp though as to much RF from my transmitter makes it turn off again.
Great Repair Like your power Screw driver electricial scissors i had to have them.
Cleaning points on vintage motocycles or contacts in general....a rough textured business card. I add a bit of iso if required. Good troubleshhot and repair. Break out the vinyl or CD direct.
Great video. I was wondering if a VU meter can be added to this amp? Would you be able to guide me on that? I know it's a stretch goal for me :) Thank you !
I think most Audiophools have gone now. I remember at an Audio expo I was at a private room demo of some silly $2000 stones that you would place your speakers and amp on for "antivibration and correct sitting" That was together with those $800-1000 power strips that would "clean the ac current"
They are still out there. Paying 1000 for a 3 foot HDMI cable will certainly qualify. OK perhaps the correct term for that is "Vidiot"
I have one of these ... it is the worst for dust getting into the switches and controls .... have to clean it every 6 months ... meanwhile I have a Optimus from RS bought in the early nineties ... never cleaned the controls ever.... still plays fine.
Some controls were worse than others. Alps were never a good control
Very very good
Very good
I fixed a pioneer with same exact problem!
Another great video 73 VE7KH
Where is the audio inputs in main circuit, how main amp circuit connecting with pre-amp?
Oh Dave BTW, you mentioned something about the power supply in the AX700....is it possible or worth it to put a power supply that had more beef but not too much to fry it?
No I just mentioned that the transformer wasn't as beefy as other amps. It is sufficient for the rating of the amp.
What is that brand of cleaner you have there in the white spray can? I'm not in the USA btw but am wondering if the active ingredient is in similar brands. Do you have an Amazon link?
Nice cat intro and brilliantly over-the-top effects btw. :D
Consider KDenLive _(especially if you ever use Linux because hardware support is better such as usage with a ps2-eyetoy webcam which costs about 1dollar at Gamestop)_ and OpenShot.
So, both are also available on MSWindows and Linux and there is plenty easy documentation online.
You could have loads of effects then, like a Bollywood News Channel.
That is vintage Nutrol.
You can still buy it but the modern stuff is alcohol based. The old stuff was freonTF based and that is no longer made. I have 2 cans left. When it is gone it us gone.
Awesome..
Sneaky Yamaha with the jumpers in the back. I remember reading Bob Cordells book and he measured distortions caused the spkr relays, some being better than others, hmm. Thankfully the bottom of the main board is easily accessible - must be made before '90s.
I love your intro's, what program do you use to make them?
The intro was made using an old version of Avid video studio (sold as Pinnacle studio 14) but I cut everything woth premiere, which doesn't have all the overkill special effects that are used on indian weddings but is fast. Pinnacle sold out to Coral and I never quite got the new version. I have it, I bought it, but never have really learned to use it. Also slow as mollases in january working with 4K files.
@@12voltvids Thank you, I will try to get it.
I have a ax 730 and ,these have a problem is in a protection mode,what could be a problem with her??all transistors are good right now ,what happend with her ?i have DC to one channel
I buy today this big amplifier. Why temperature radiator tranzistors is to hot. Al chanel. Is normal work ? Thank s for answer
Those Omrons of that vintage fail often, I replace on sight. Quality replacement costs like $8. Cleaning can work but in my experience isn’t reliable long term.
120 grit though, that will remove the dirt and oxide, and the plating too. Ouch 😙
They are a lot more than that by the time they get here. 9.00 for relay, 8.00 shipping and then fed ex adds an extra special surprise, 37.50 in broker charges. Been down that road before. I had a customer that I ordered a part from, and was assured by digikey that there were no additional fees and was assured that what I was charged was what it costs. I quoted my customer the price of the part plus shipping. Because these days if you quote too high a price for the part and they can look it up, they slam you as a crook. The part was a 5.00 part with 8.00 shipping. I charged 15 for the part including shipping. 3 weeks later I get a bill from fed ex for 37.50. I only charged 40.00 to install the part, and now I am at a loss. I saw him at a coffee shop a few weeks later and asked him how his tape deck was doing and he said great, and then I told him I got a bill from fed ex for broker charges and his response was, thats too bad, had you told me that the part was 37.50 more I would have told you to keep it. So no, I really don't give a shit these days how long something lasts. It it lasts 6 months and fails again and it come back, I charge again. I really don't care how long it lasts, because I make pretty much nothing doing this. That's the reason I got out of the business in the first place in 2003. I do repairs now more of as a favor, I don't charge allot because people will just scrap stuff if the cost is too high. Ordering in any specialty oarts these days is too expensive for the vast majority.
I agree that the paper is way too coarse, but it won't remove the plating because the contacts are not silver plated, they are silver *alloy*. I would use something between 800 and 2000 grit, because the deep scratches a 120 grit paper causes on the contacts reduces the contact area.
@@mrnmrn1 Not putting anywhere close to enough pressure to scratch anything. Just enough to remove the oxidation.
@@12voltvids - So much for "free trade." 🤬
@@12voltvidsUse a folded strip of 600 or higher grit wet-sanding paper with some contact cleaner. Then wash the contacts with isopropanol alcohol, because contact cleaner is aggressive en will "eat" the contacts for a long time afterwards.
Think almost everything later was made without removable bottom.
The Slow Cat Meow..lol..Wow Monster Resistors..
Those contact arms in the relay are deliberately formed that way so the contact faces meet correctly and parallelly. Now they don't 🤨
Just saying
No, they bend over time, and the spring tension becomes weak.
Now you know.
@@12voltvids No sir, Tony is right.
Now you know!
You're never too old to learn.
@@12voltvids
I really enjoy watching your vids Mr Volt but sometimes I literally cringe and have to cover my eyes at the way you do things.
Have you ever considered becoming a blacksmith?
Love the cat btw 😺
@@tonygoodenough7407
Ever think i do things to make you cringe.
These are trash can units that I get going without putting in any money because they are to show what goes wrong and what needs to be done to get them running. They are headed right back to the trash can when I am done. The majority are not paid repairs. It is donated equipment shown off as a demo. If you were doing this on your machine then by all means buy a new relay, but for this and most other repairs the equipment is not going back into service nor being sold.
@@12voltvids Fair enough, it's enjoyable nonetheless 👍
At lest it wasn't rusty inside like the Yamaha Tuner Amp you serviced the other day.
Dave is the Yamaha AX Amp a good amp and or do you feel Sony made better amplifiers?
Yamaha is good.
I am sure the audiophiles can feel the difference in their wallets ;-)
My one is a RX 930 my led display doesn't work anymore it's been packed away for the last 4 Year's
I dont understand ? I have this model. The bass reglage is to low or what. Output whit max bass is not much. Is litle without loudnrs min. Example another amplif grundig r 2000 has more bass at same speaker and source. It s a trouble about yamaha or is normal like this.
What does the MM/MC switch actually do electronically and is there a danger to using an MC cartridge with an amp/receiver that doesn't have that switch or circuitry?
The MC/mm switch changes the preamp between a moving coil and a moving magnet cartridge. Moving coil is a very low output they requires much more gain than a moving magnet so if you put a moving coil on a photo that is designed for moving magnet you will have very low sound and also because the load is different the frequency response will be way off by contrast if you put a moving magnet cartridge in the moving coil position it will be overloaded loud and very low fidelity but no it won't hurt anything it will just sound like shit
@@12voltvids great, thanks for the explanation!
My friends dad , who I got to know well , was working in a repair shop when a woman brought in a TV for repair. He was told to give her a price quote before even opening up the set to inspect it . He said to bring it across the highway to (Miss Ann the Psychic and to ask her how much it will cost to have her TV repaired . Thought this will give you a lough Thanks for Yamaha repair video , I have 2 Yamaha receivers , both with noisy pots., afraid I have bad caps on one and maybe have to take pot. apart on the other , will see ?
If I had a dollar for every question someone asks me about what is wrong with "insert device here" and some get darn nasty when I don't respond so I start removing their comments and their nasty comments and the they take offence to the post being deleted. They don't seem to realize that i am ultimately responsible for their posts and both myself and my appointed moderator will remove inflammatory or threating comments.
Excellent video. Watch out don’t let that cleaner drip on your clothes - hard to get out!
Too late
I turned the volume knob on a new Yamaha the other day that was on display at Costco and I about gagged
I need one IC PD2006 to replace Pioneer audio equipment. If you have any, I want to buy it from you.
I don't have any parts.
Can you clean or replace my input selector switch on my Yamaha RX-570 unit? Local guy wanted a non-refundable $175 just to drop off.
Yes probably.
Nice dinosaur meow :)
I know what you mean with prices of repairs... people always try to get a bargain... and if you dont comply , they usually dont want to fix it so i fix them anyway for cheap...
I don't know I would have when I had the cabinet off and the faceplate off I might have cleaned it make it look better than it did when it came in
So you would do that for 50 bucks as that is what I got for this repair.
i love your vids,good on you for banning him
Well I banned him a long time ago from my channel. He makes bogus spam complaints and tries to get my channel (and several others taken down) I have been in contact with other youtubers including Dave Jones from EEVBLOG and have contacted the AbuseIPDB as have the others. Finally, and this has taken some time they have done the right thing and banned him. He is most upset that I showed the email response from Dave Jones, and has even contacted youtube to get this video removed because his "screen name" which I am not even sure is his real name was shown on my phone. Look for that to be blurred in the next couple of hours as he is attempting to get me taken down now for privacy concerns, yet he has published my name, wifes name and phone numbers, as well as the last address he could find me living at, which is actually where my sister and her family live, and where I have stuff delivered to as I don't tell anyone my real street address. That's OK for him to put my contact info out for everyone to see, but if his name shows on a video or I say his name and call him what he is, a psychopath I am reported and threatened with having my channel taken down.
What happened to your carpeted work station? This doesn't look quite so posh. Aloha
Its here somewhere.
What's wrong with the cat? Did he catch a cold, the poor thing?
Think just slowed down effect on video.
The best repairs are done on a shoe string!!!!
Really?!
@@2flyabove Yes really smart arse!!!!!
@@tonybalm1513 oh, how smart of you...
Those front panel controls were extra crappy, yamaha should have stuck to making cheap keyboards :)
We all make mistakes dave, very few admit it.
I've never seen an amp without dusty/dull passthrough staples, most users never use add ons.
Alps made terrible controls and switches. I didn't even look at the back when I plugged it in. Owner said "doesn't work, try and fix it" Now he owes me.
OMG...using 120 grit sandpaper for cleaning gold-plated contacts from a signal relais!
Contact cleaner to clean potentiometers is also not a good idea, it's too agressive and soon these potentiometers will fail again.
This is not a gold plated signal relay, it's on the speaker outputs, it's a high amp relay with silver alloy contacts. But you're right, 120 grit is way too coarse, the deep scratches it makes reduces the contact area. I'd use something between 800 and 2000 grit.
“…that’s perfectly normal.” Unless it’s that horrible glue that dries out and becomes conductive and corrosive. Yuck! 🤮
It is likely that this is the type of glue that you've mentioned. I've repaired an AX500, the smaller sibling of the AX700, and it seems that the corrosion caused by the glue was the issue in my unit and is a common point of failure on others.
ax590 mine is
Yoda? Is that you?
So in plain English you were dealing with Cheapskates not true audio files
There’s not much point in visually redacting the (last) name if you’re just going to blurt it out. 🤔 Still, it’s good to get rid of trolls and bullies. 🤗
I´d rather to use the solder´sucker
See what I deal with audio equipment everything cheap run-of-the-mill type of unit and the person brings it to me I turn around and tell him it's not worth it but if it's a vintage piece of named equipment and it's a high-end piece I will talk them into getting it done right because that piece of equipment is worth saving and in the long run if they turn around they keep it it's worth it to them to get it fixed properly because they have an investment in it that if they turn around and sell it they can make that investment back and a prophet with no problem
Kitty!
ah yes, the speaker wire that costs £10 a foot....Could I tell the difference? Nah, I stick with Bell-wire...
Hello!!! i've the same ampli and i lose a channel :(
Wrong Wrong Wrong, this is the worst possible way to clean switches and pots, don't do it like that!
Another unnecessarily long video to make more add money for him and boor us with his constant knob twisting. Sango66 dose the same thing on his channel.
I actually cut this down about 10 minutes. There was much more knob twisting to clean these controls than you saw, and switch cleaning that was removed.