I am looking for suggestions as to where to begin on servicing this receiver.It powers up for a short period.5 seconds or so, enough to initiate a system's test of sorts then powers down to a standby mode. Any help would be appreciated.
Denon Surround Receiver Model AVR-1601
May 14, 2006
6 Replies
Are you a technician?
Mark Z.
First place to look is for open fuses. Next, does a relay click, and then the unit depowers ? If so, primary of main ( not standby ) power transformer may be open. It's quite common for primaries to fail open on Denons of various models. Fault monitoring circuitry checks rails after main power relay closes, and if any ( or all ) are missing, unit drops back to standby. Failing this, it's going into output protect. As Mark says, you might struggle, particularly with a Denon, if you are not an experienced engineer. They are not the most fix-friendly of designs ...
Arfa
Thanks for this Guy's Fuses are alright, Relay is also ok, I guess I will begin at main power trans as you suggest.
Dave
I'd be happy to help with a couple more suggestions if I knew you could solder, read a schematic, etc.
Mark Z.
I will welcome any sugesstions you care to offer.Schematics are not an issue !
Thanks Dave
Look for bad 1 ohm resistors in the regulated power supply. They should be changed to 0.22 ohm 1 watt flameproof.
Mark Z.
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