PPI PCX-2125

[jomede]

Amplifier powers on but has distorted output when the volume is turned up? Nothing looks discolored or burned on the board. I did wiggle everything on the board and one of the 2 boards that is mounted verticle makes a clicking noise when moved. I checked for bad solder joints and nothing stands out. Any Ideas?

 

[AKHeathen]

makes a clicking in the output? did you do a continuity check of the mounting connections. you can't always see it

 

[jomede]

The clicking/pop is coming from the speakers when I wiggle the card.

 

[Perry Babin]

If you resoldered the connections on the board, check where they connect to the ceramic board.If all is OK there...

With no power applied, measure the resistance for probes A and B in the following image. What do you read?

http://www.bcae1.com/temp/ppidriverboardresistoroverlay01.swf

 

[jomede]

Board 1 A=100.3 ohms
B=100.6 ohms

Board 2 A=100.4 ohms
B=100.4 ohms

 

[Perry Babin]

Those are OK. Double-check the connections where the leads are soldered to the ceramic board. You'll have to use a lighted magnifying glass to see if any of the solder connections are cracked.