Question about Yamaha DSP-A1 Receiver

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Av amplifier RE:-YAMAHA DSP-A1 AV AMPLIFIER, PROBLEM IS=== UNABLE TO GET LIGHTS ON DISPLAY PANEL TO DISPLAY ANY INFO?? THEY COME ON INITIALY FOR 3-5 MINS THEN PROGRAM DISPLAY ALL GOES OFF,UNABLE TO ASCERTAIN WHERE I AM ON SUSTEM SETTINGS.AMPLIFIER WORKS OK OTHERWISE.

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  • Anonymous Sep 28, 2008

    Display goes off after a few seconds. Before it came back on again, but now it mostly stays off. I also have problem with the volume control, it can not be operated by the remote control. I can operate the volume control manually though. FYI, the DSP-A1 has a motorized volume control.

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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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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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Posted on Jan 02, 2017

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https://www.hifiengine.com/manual_library/yamaha/dsp-a1.shtml?_e_pi_=7%2CPAGE_ID10%2C1711428461

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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

http://www.youtube.com/watch?v=eiJRmpfKxBM
http://www.avforums.com/forums/av-amplifiers-receivers/1058423-yamaha-dsp-a1-display-fix.html

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i am no expert but i had simmilar problems and it turned out that some capacitors needed replacing

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