41Hz AMP9-basic troubleshooting (I have searched :) )

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T

Theli

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Joined 2004
AMP9-basic rev1.2 board

couple of troubleshooting questions.

Tripath ship with heatsink gets very hot quickly with:

Inputs shorted

J2
- Pin 1&2 = awake/sleep : closed
- Pin 3&4 = mute : closed
- Pin 5&6 = AM mode : closed + closed in the other location as well
J3
- Pin 1&2 = Sleep/Awake LED - on
- Pin 3&4 = Overload LED - off
- Pin 5&6 = Mute LED - off

plus outputs measure oddly, some give me negative values, some are positive values between 1 and 5 volts.
 
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