Hi everyone . My first question on this forum.I really need some help .
I,m trying to repair an harmon kardon AVR20 II .The protection relay keep opening after 5 seconds .I have changed many capacitors and rectifier and some resistors too.I checked for the processor on the front of unit .look like it's working. All output transistors are good.
I have disconnect all wires that were connected to the board to check, but nothing work. Would really help if someone have the service manual for this unit or any tips . Thanks. Jeff
I,m trying to repair an harmon kardon AVR20 II .The protection relay keep opening after 5 seconds .I have changed many capacitors and rectifier and some resistors too.I checked for the processor on the front of unit .look like it's working. All output transistors are good.
I have disconnect all wires that were connected to the board to check, but nothing work. Would really help if someone have the service manual for this unit or any tips . Thanks. Jeff
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