Question about Harman Kardon AVR 235 Receiver
My AVR 235 doesn't turn on, only stay on stand by. I shut down everything for 30 minutes and nothing, than I checked all speakers connections, same results.
problems with Avr units are the internal supply always fail with in time.
mostly -15v and +15v are the regulators 7815 and 7915.
the mpu takes care of the AVR .. the control unit stops the AVR not to get more damage ,
if you now or have the knowledge about Electronics, check power supply voltages, regulators, check capacitors.
dont forget to check soldering points also.
Happy to help
Posted on Aug 02, 2016
That sounds like a amplifier module /section that has failed.
Do you ever get power surges at your place?
Posted on Jan 19, 2009
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Posted on Jan 02, 2017
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