Question about Yamaha DSP-A1000 5-Channel Amplifier
Hello, my aging A-1000 still works good except when playing DVD movies. It appears to be a lose contact at the input selector switch. If I giggle with the input selector switch the sound comes back for a while. But it repeats the problem by "no sound from right speaker to static sound" and it is annoying especially watching movies. I recently made the DVD input in the back of the unit to LD (because A-1000 was made pre-DVD era, I have been using TV/DBS as a DVD source.) It now works better than before, but still the problem comes back. The strange thing is this rarely happens when playing music CD thourgh the same DVD player (effect off). Would you agree that it is the input selector switch that is the problem? If so, where can I get a replacement switch? Thanks.
As that unit is well over 5+ years old, I seriously doubt the part is available any longer. I doubt that you will even find a used part, and even if you do, it will probably be as bad as your switch. As I have worked on audio for over40 years, I would use LPS 2. It is a lubricant. Do not try this with WD40 or similar. Just spray the LPS on the wafers, or through any open holes in the switch. You just need a little. If you just squeeze the button, you will see just a little bit of foam. That is all you need. No more; no less. Rotate the switch from from left to right and back again multiple times. Try that. BTW, no manufacture uses these mechanical switches any more.The controls are now called Rotary Encoders, which basically are inputs to a display microprocessor IC(a computer within the new product) which in turn controls the inputs of a switching IC. It's the same as your old switch, just electronic, and much more complicated. If you need more information, or would like to inquire about repairing your unit, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
Posted on Dec 13, 2014
Volume LED? that sounds like the mute switch is on. it has a 20dB attenuator that can be deactivated using the remote
Posted on Jul 12, 2009
Flying yeti.... yup... it's definitely your input switch. im from yamaha service before at saudi arabia. that is a normal trouble specially in high humidity places. you can only get a replacement at yamaha service though. their newer model are better they dont use contact switches nomore.
Posted on Mar 18, 2008
Yes Yamaha haven't made good contact switch yet, I don't know when, I've seen lot's of yamaha with bad switch and volume control, It's easy to get parts I find with yamaha, not like the other brand that sony's sales, contact yamaha help desk and they will dirrect you to the parts dept. , you will need a credit card and you won't be able to get the part.
To find there # go to www.411.com or in googles type yamaha.com
I hope this help's
What About Bob
Posted on Feb 12, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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