The first time I encountered that type of volume control, it through me for a loop. I was extending car stereo controls to the back seat passengers, using only momentary push buttons. After some tinkering, I found I could make it work by first holding down one switch then click the second switch. That would do one bump in the up direction. Repeat the sequence to turn up higher. For volume down, hold the second switch and click the first switch. Had to let go of both to do another sequence. It was a clunky solution but worked.
Because of you, I now have a new-to-me receiver in my garage that sounds great. Just as you showed, the silicone was stiff and hindered the contacts. I don't have a soldering iron, bu I managed to take the volume control apart and reassembled without having to (after closely watching what you did). Thanks for sharing your knowledge and taking the time to video.
Thank you for explaining how these work. I don't have a soder iron but from watching this I was able to fix my problem to slowly turning the knob, allowing the contacts to be made. Thank you for the help.
Hi Dave,I have a D307 that I fixed for the fun of it and an SX-6 that I really like. Also, I'm trusting you and bought one of the Matrix power supplies. The price was too good to pass up! Thanks for the review
Perfect guidance. I cleaned the encoder in my Pioneer 808RDS and it works as new! However: because I struggled with dismounting it, I just opened the encoder without dismounting it from the board.
Thank you for responding. Yea... I wished it was as simple as any wiring outside the unit, like speakers or so. Unfortunately it is an internal problem of the unit, it does it even without anything connected to it, except of the power cord of course. I've tried number of things but it seams to be like internal digital programming issues, like a glitch. I just quit the project at all. Again thank you for your time and interest in responding.
Thanks for the video. A brand new to me receiver is now working wonderfully; took only a few minutes to take down and repair. Just in case anyone is looking for the type of grease used in the encoder is called damping grease.
Shipping has become incredibly expensive, especially internationally. I sold a heavy Yamaha pro amp on eBay and shipping from Los Angeles to Toronto was more than the sale price of the amp.
I used to ship 8 track players and receivers from Toronto to the US, average cost $12. That was when eBay first came out in 1997. Once they discovered eBay, the prices kept going up.
Did that on a friends 90s Denon amp, input selector was a bit hit and miss, very tarnished contact pads, the bloody thing was'nt easy to get into like yours, had awkward tabs which had to be spread apart, only way to get at them was from the side with long needle nose pliers, job done in the end and still ok.
Had a sony xbr projector back in the 80's in for service where the dog pissed on the base. It was one of those ones that was made to look like the 25" versions sitting on the pedestal stand. Anyway the CRTs were in the base, firing up at a mirror towards the screen. The dog pissed all over the crt driver boards. The guy was honest and tokd the countermen what happened. They didn't tell me. I opened it up and there it was. I shouted from the back, this set smells like piss, and the laughter that followed from out front..... I sent it to my assistant across the shop, and said, clean this mess up or you're fired!
Also, not just home radio and along with ham radio equipment that has rotary encoders, but also for any radios from auto has a same rotary encoders two, and it's still fully function. What's odd the microwave is now using the rotary encoders to give a time, or modes before proceed to cook food or drink, sometimes it will go mind of its own whenever the rotary encoder is getting dirty.
Thanks Dave. I have a '97 Dodge van with 4 channel stereo in the dash. The volume adjustment was on low and could not be adjusted up. I will extract it and give a shot. Will the same be true of the "joy stick" for the 4 speaker balancer ? J K
Thankyou @12voltvid, I have a Harman Kardon HK3490 that the volume only worked off the remote. I watched this an felt 'enpowered' so stripped the encoder and sure enough, full of grease. Cleaned and refitted, good as new! 👍👌
I had an Aiwa compact sound system with a dirty encoder. Mine was not too bad though, the numbers just jumped around and it would sometimes turn up when I wanted it to turn down.
Great video thank you. I have this exact same model But luckily I haven't had any issues with A digital volume control you mentioned. I do however I have a memory problem Wear a no longer retains the memory So at this point I have it connected to a UPS Which probably is standard nowadays But would like to learn how to replace the Battery or storage capsule inside this unit. Any luck on visuals on seeing where it is? Or even a service manual location that might help me? Thank you again for this video.
I wondered how those volume controls work. They have no stops, just can be turned one way infinitely. The volume will only go from 0 to max which is the limit.
These are rotary encoders and not potentiometers.While turning square wave pulses are generated in two pins of the encoder that have 90 degrees phase difference depending from the turning direction.The microcontroller then is decoding this signal and sends digital protocol words to the dedicated volume level control chip to adjust the signal level.
I also had that kind of problem on my Teac AV receiver, already open and clean the rotary encoder but still I can’t control the volume jumping the counter anywhere. What supposed to check next. Need your expert tips. Thank you.
I think that unit is from early 2000's? I have a Pioneer that is very similar, it's Gold coloured model VSX-710s which I bought in 2001. It still works fine, but it's good to know about the encoder switch dial.
I have a pioneer vsx-1130k with the same issue but I cannot get the white ribbon disconnected from the front panel and I don’t want to just pull on it and I can’t find anything online on how this type of cable comes apart can you advise on how this comes apart thank you
I see more faulty rotary encoders than I do volume/tone pots. Slightly ironic when rotary encoders were supposed to solve the issue of noisy pots. Good repair as always :)
I will repair my volume, it has the same problem. you know what it can be, when I put the volume on 19, my receiver turns off and on again, it seems that it disarms when I put it on 19. You know what it can be ???? thanks. OBS: No input sounds and no speakers , only power on in mode dvd or other and disarm in volume 19.
speaking of volume are you using a different mic lately? the sound has been kind of bad in the last couple videos. it's like you're rubbing against the mic, it's real scratchy sounding
The grease ('the gummed up' stuff) is probably there because someone has spraid contact cleaner, and diluted the grease that is used on the ax to give a turn of the knob 'a nice feel'. Same problem is there on usual pot's. That's why I always disassemble them if possible.
Than that has another course, maybe the grease is to thin ? I noticed when I sprayd contact cleaner in a pot, directly the whole feel of the mechanism changed from smooth to rattling around loose in its bearing, and concluded after a few of these that it was time to leave that spray out of there, and disassemble it.
So I did everything that you showed and my volume is still stuck at full blast! I've taken it apart 3 times just to make sure that I did everything correctly, but it keeps doing the same thing. So how much should a new encoder volume switch cost do you think?
Never realised that encoders were so basic inside. I wouldn't have thought to strip one before seeing this video. Can you also strip the ones that have a pushbutton function?
I actually have the same volume switch but on a smaller pcb. Tried with desoldering lint, but it does not get out all the tin. Can't get it out any suggestion on how to desolder it? Would be greatly appreciated
I have the same unit. Works fine from -99dB to -20dB. Once I go higher on volume (-19dB to 0dB) it keeps turning off the whole unit for few seconds and it keeps coming back. In circles every 5 seconds. Would anyone have any idea of what the problem could be ?
Check your speakers and wiring for overload. If you plug in headphones and turn speakers off does it still do it? If not then your speakers could be too low ohms. Some amps require minimum 8 ohms and if you run 4ohm or 6ohm speakers it will trigger protection if you crank it. My luxman is that way. It requires 8 or 16 ohm speakers. My speakers are 6. If i turn it up too much it cuts out. That's life. Solution ? Use different speakers that are rated the same as the amp.
I don't want to spoil the fun, but it may just work for awhile cleaning it as it did on the almost exact unit that I worked on... Those rotary encorders are crap and simply needs to be replaced. I ended up bodging in another rotary encoder, scavenged from a car stereo (Volvo HU-603) that did the trick and hopefully will last.
Very typical fault for one of these mechanical encoders. Optical ones may be more common than you think - I once had a mid-'80s Kenwood midi tuner with one, not to mention an AOR AR7030+, but the most common application may actually be computer _mices_ (scroll wheel, also ball movement on old ball mice).
@@12voltvids Always nice to see that even the professionals make mistakes from time to time. But mainly, I wanted to brag about my attention to detail :) Keep up the good work and ignore the haters.
The first time I encountered that type of volume control, it through me for a loop.
I was extending car stereo controls to the back seat passengers, using only momentary push buttons.
After some tinkering, I found I could make it work by first holding down one switch then click the second switch.
That would do one bump in the up direction.
Repeat the sequence to turn up higher.
For volume down, hold the second switch and click the first switch.
Had to let go of both to do another sequence.
It was a clunky solution but worked.
Because of you, I now have a new-to-me receiver in my garage that sounds great. Just as you showed, the silicone was stiff and hindered the contacts. I don't have a soldering iron, bu I managed to take the volume control apart and reassembled without having to (after closely watching what you did). Thanks for sharing your knowledge and taking the time to video.
Thank you for your attention to detail and clarity of explanation. Just fixed the same receiver that I have had for years.
Thank you for explaining how these work. I don't have a soder iron but from watching this I was able to fix my problem to slowly turning the knob, allowing the contacts to be made. Thank you for the help.
Hi Dave,I have a D307 that I fixed for the fun of it and an SX-6 that I really like. Also, I'm trusting you and bought one of the Matrix power supplies. The price was too good to pass up! Thanks for the review
Deoxit to the rescue. Thanks for a attenuator lesson.
Thanks for this video. It fixed 2 of my old pioneer receivers. I'm so pumped.
Perfect guidance. I cleaned the encoder in my Pioneer 808RDS and it works as new! However: because I struggled with dismounting it, I just opened the encoder without dismounting it from the board.
I always wait your intro to watch the cat moaning... I really love the kitty ❤
Greetings from #Algeria 🇩🇿❤❤❤❤❤
Thank you for responding. Yea... I wished it was as simple as any wiring outside the unit, like speakers or so.
Unfortunately it is an internal problem of the unit, it does it even without anything connected to it, except of the power cord of course. I've tried number of things but it seams to be like internal digital programming issues, like a glitch. I just quit the project at all. Again thank you for your time and interest in responding.
Thanks for the video. A brand new to me receiver is now working wonderfully; took only a few minutes to take down and repair. Just in case anyone is looking for the type of grease used in the encoder is called damping grease.
Great job!
Shipping has become incredibly expensive, especially internationally. I sold a heavy Yamaha pro amp on eBay and shipping from Los Angeles to Toronto was more than the sale price of the amp.
A vcr was shipped to me from New York. Cost the sender 93usd to ship to canada. Only cost 65cdn to ship back to the us. Go figure.
I used to ship 8 track players and receivers from Toronto to the US, average cost $12. That was when eBay first came out in 1997. Once they discovered eBay, the prices kept going up.
Really enjoy your videos, excellent work. Not a fan of the new mic though, I personally think the camera mic is nicer to listen to.
So am I. Find the new one has some noise in background.
Did that on a friends 90s Denon amp, input selector was a bit hit and miss, very tarnished contact
pads, the bloody thing was'nt easy to get into like yours, had awkward tabs which had to be spread apart,
only way to get at them was from the side with long needle nose pliers, job done in the end and still ok.
Yeah, I had to clean the encoders on the front panel of my Denon after one of my dogs peed on it... that was fun.
Had a sony xbr projector back in the 80's in for service where the dog pissed on the base. It was one of those ones that was made to look like the 25" versions sitting on the pedestal stand. Anyway the CRTs were in the base, firing up at a mirror towards the screen. The dog pissed all over the crt driver boards. The guy was honest and tokd the countermen what happened. They didn't tell me. I opened it up and there it was. I shouted from the back, this set smells like piss, and the laughter that followed from out front..... I sent it to my assistant across the shop, and said, clean this mess up or you're fired!
12voltvids that’s....nice.
Also, not just home radio and along with ham radio equipment that has rotary encoders, but also for any radios from auto has a same rotary encoders two, and it's still fully function.
What's odd the microwave is now using the rotary encoders to give a time, or modes before proceed to cook food or drink, sometimes it will go mind of its own whenever the rotary encoder is getting dirty.
Works for me...thanks !!!
Thanks Dave. I have a '97 Dodge van with 4 channel stereo in the dash. The volume adjustment was on low and could not be adjusted up. I will extract it and give a shot. Will the same be true of the "joy stick" for the 4 speaker balancer ? J K
Thankyou @12voltvid, I have a Harman Kardon HK3490 that the volume only worked off the remote. I watched this an felt 'enpowered' so stripped the encoder and sure enough, full of grease. Cleaned and refitted, good as new! 👍👌
VERY commmon problem for all these units that use an encoder switch.
@@12voltvids really enjoy your videos. Iam plowing through all the older stuff slowly.
I had an Aiwa compact sound system with a dirty encoder. Mine was not too bad though, the numbers just jumped around and it would sometimes turn up when I wanted it to turn down.
Great video thank you. I have this exact same model But luckily I haven't had any issues with A digital volume control you mentioned. I do however I have a memory problem Wear a no longer retains the memory So at this point I have it connected to a UPS Which probably is standard nowadays But would like to learn how to replace the Battery or storage capsule inside this unit. Any luck on visuals on seeing where it is? Or even a service manual location that might help me? Thank you again for this video.
I wondered how those volume controls work. They have no stops, just can be turned one way infinitely. The volume will only go from 0 to max which is the limit.
These are rotary encoders and not potentiometers.While turning square wave pulses are generated in two pins of the encoder that have 90 degrees phase difference depending from the turning direction.The microcontroller then is decoding this signal and sends digital protocol words to the dedicated volume level control chip to adjust the signal level.
@@GeorgeGeorge-xj2bc interesting.
That Alps Rotary Encoder is driving me nuts nowadays. Component Systems always have that problem because of dirt coming from the inside.
I also had that kind of problem on my Teac AV receiver, already open and clean the rotary encoder but still I can’t control the volume jumping the counter anywhere. What supposed to check next. Need your expert tips. Thank you.
very good, the same for my VSX 808RDS , thanks
I think that unit is from early 2000's? I have a Pioneer that is very similar, it's Gold coloured model VSX-710s which I bought in 2001. It still works fine, but it's good to know about the encoder switch dial.
I have a pioneer vsx-1130k with the same issue but I cannot get the white ribbon disconnected from the front panel and I don’t want to just pull on it and I can’t find anything online on how this type of cable comes apart can you advise on how this comes apart thank you
I see more faulty rotary encoders than I do volume/tone pots. Slightly ironic when rotary encoders were supposed to solve the issue of noisy pots. Good repair as always :)
Well the encoders were developed so that digital attenuators could be deployed. Made it simpler for remote control.
Dave I was thinking maybe you need to get the Rode wireless mic
excellent friend video .. my amplifier function keys do not work .. what can I do?
I will repair my volume, it has the same problem.
you know what it can be, when I put the volume on 19, my receiver turns off and on again, it seems that it disarms when I put it on 19. You know what it can be ???? thanks. OBS: No input sounds and no speakers , only power on in mode dvd or other and disarm in volume 19.
Blowout the dust with w mini air compressor
Yeah the shipping is why I've not been able to get you help with a couple devices
speaking of volume are you using a different mic lately? the sound has been kind of bad in the last couple videos. it's like you're rubbing against the mic, it's real scratchy sounding
Yes I tried the lav and headset mic but they get in the way. Going back to camera mic
@@12voltvids get one of those holly wood movie mics if a termite shits it can pick it up.
@@12voltvids THANK YOU!
Well, you just can't turn that down...
Thanks
The grease ('the gummed up' stuff) is probably there because someone has spraid contact cleaner, and diluted the grease that is used on the ax to give a turn of the knob 'a nice feel'. Same problem is there on usual pot's. That's why I always disassemble them if possible.
It has happened on my equipment too that has never had contact cleaner sprayed into it.
Than that has another course, maybe the grease is to thin ?
I noticed when I sprayd contact cleaner in a pot, directly the whole feel of the mechanism changed from smooth to rattling around loose in its bearing, and concluded after a few of these that it was time to leave that spray out of there, and disassemble it.
Except the degrease cleaning is a good idea also to slightly scratch the contact surfaces to polish them for better results over the time.
They will polish themself.
So I did everything that you showed and my volume is still stuck at full blast! I've taken it apart 3 times just to make sure that I did everything correctly, but it keeps doing the same thing. So how much should a new encoder volume switch cost do you think?
Couldn't even guess what one would cost if one was available.
nice fix
Never realised that encoders were so basic inside. I wouldn't have thought to strip one before seeing this video. Can you also strip the ones that have a pushbutton function?
yea there is really not much to them.
Are the notcy ones the same?
Yes if they spin forever they are. They just but nubblies in to give it that detent feel.
I have this on class d subwoofer amp, ill open it and see if it is the same issue
I actually have the same volume switch but on a smaller pcb.
Tried with desoldering lint, but it does not get out all the tin.
Can't get it out any suggestion on how to desolder it?
Would be greatly appreciated
I have the same unit. Works fine from -99dB to -20dB. Once I go higher on volume (-19dB to 0dB) it keeps turning off the whole unit for few seconds and it keeps coming back. In circles every 5 seconds.
Would anyone have any idea of what the problem could be ?
Check your speakers and wiring for overload. If you plug in headphones and turn speakers off does it still do it?
If not then your speakers could be too low ohms. Some amps require minimum 8 ohms and if you run 4ohm or 6ohm speakers it will trigger protection if you crank it. My luxman is that way. It requires 8 or 16 ohm speakers. My speakers are 6. If i turn it up too much it cuts out. That's life. Solution ? Use different speakers that are rated the same as the amp.
I don't want to spoil the fun, but it may just work for awhile cleaning it as it did on the almost exact unit that I worked on...
Those rotary encorders are crap and simply needs to be replaced.
I ended up bodging in another rotary encoder, scavenged from a car stereo (Volvo HU-603) that did the trick and hopefully will last.
all your Repairing video's are valuable. but would like to request you to change title video
What my logo? That is my copyright screen.
@@12voltvidsi mean background video of title:
sorry
Very typical fault for one of these mechanical encoders. Optical ones may be more common than you think - I once had a mid-'80s Kenwood midi tuner with one, not to mention an AOR AR7030+, but the most common application may actually be computer _mices_ (scroll wheel, also ball movement on old ball mice).
Yes optical encoders were popular in mice and the disk sensor in 5 disk cd changers. The mechanical ones more popular in volume and other controls.
Melted ribbon cable at 14:30
Your point?
@@12voltvids Always nice to see that even the professionals make mistakes from time to time. But mainly, I wanted to brag about my attention to detail :) Keep up the good work and ignore the haters.
@@SantaClaw I knew it touched slightly, but not near the conductor that is in a few mm from the edge.
using mono mic but I hear stereo noise
Might be a mono mic plugged into camera but it is still encoded into a stereo bit stream as is the final mix still a stereo stream.
Obrigado obrigado mesmo Paulo pegado
Please reset video
Pioneer vsx d409 please reset video please video