Question about Yamaha DSP-A1 Receiver

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Re: av amplifier

The display problem is because the solderings on the back of the display are broken. To fix it you have to open the amp and redo the solderings (there are about 50 or 60 of them). There is a Youtube video that shows how to do it. I have fixed this on my DSP-A1.
I also have the problem with the motorized volume control. I have tried cleaning it, and it works for a few days, then it's stuck again. I guess I will have to replace it to have it fixed permanently. The part number is VZ621400, a new one costs about 40$.

Posted on Jun 23, 2009

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Re: av amplifier

Sounds like a capacitor problem in the power supply to front panel display,another common problem is everything o.k for a few miutes since power on then goes off like you say which could be down to dry joints on the vacuum display panel whick go open circuit when everythig warms up (open circuit meaning non contact) in non tech term.

Posted on May 02, 2008

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The receiver works, but the LED display does not come on.

My Yahaha DSP-A1 had the same problem. Apparently its quite a common problem, caused by the heat from the LEDs causing the solder joints to fail.

I fixed mine by removing the front panel, and resoldering all the connections on the back of LCD panel - and it works fine now.

Its not particularly difficult, but is a bit fiddly and does require the use of a small soldering iron.

If you are tempted to try it, these links show help

Best regards and good luck

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Over the years the solder joints on the display panel become bad due to the heat that the display puts out. The way to rectify this take the cover off and dis-assemble enough to get to the display. Then using a soldering iron re-solder all of the joints on the board. You should be able to see the joints that are bad as they will wiggle. If you are un-comfortable soldering then try to find someone that is. There is a your tube video on doing this as I learned tonight. I have not done this procedure yet, but I have had the same problem for over 2 years. The display does not even work any more. Now that I have learned what the problem is I will be doing this when I feel like unhooking everything.

Jan 07, 2008 | Yamaha DSP-A1 Receiver

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