Yamaha YPA-1020 help needed - diyAudio
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Old 25th April 2012, 10:59 AM   #1
azvrt is offline azvrt  Netherlands
diyAudio Member
Join Date: Dec 2010
Location: Netherlands
Default Yamaha YPA-1020 help needed


I have a Yamaha YPA-1020 of which channels 2+4 are working fine, but 1 and 3 are having problems.

1 is much weaker, and 3 slighlty weaker.
On top of that, both of these channels don't sound right, muffled.

What could be the cause of this ? Capacitors in the output section ?

I only have the service manual for the smaller 4 channel 720, the 1020 is a little different though.

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Old 25th April 2012, 02:23 PM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
You need to compare the signal at corresponding points between good and bad channels to see where you lose the signal.
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Old 25th April 2012, 02:25 PM   #3
azvrt is offline azvrt  Netherlands
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Join Date: Dec 2010
Location: Netherlands
Thanks for the advice Perry.
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