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Hello. I have a fairly new Harman Kardon receiver AVR 335. My problem is this: When I plug in the power chord, it switches to standby mode (normal). Sometimes I can't switch on the device (remains in standby mode) After a lot of on/off switching it goes on and playes normally. But after a while, sometimes minutes, sometimes hours, it switches off (to standby mode). Sometimes it helps to "shake" it a little. It has been repaired by an authorized dealer, but the problem was not solved (paid 350$ for nothing) I have read in other forums about people having similar problems with different HK AVR models, but no solutions proposed. Any ideas..??? Many regards Flemming Denmark

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  • valde Apr 26, 2008

    Thanx for your reply. Funny thing is that for a week now, the receiver seems to have fixed itself (Doh!). If the problem should come up again, I will try your advice.

    By the way, resetting the unit, would it reset the remote too..? My hair is getting grey over it. All sound sources are connected to DVD button via coax cable. Pushing the DVD button is OK, but if you want to adjust fx the volume, you must push the AVR button as well, and that's when it goes wrong. Instead it switches to VID4. After trying several times it eventually switches to AVR as it should. Strange behaviour for a remote, don't you think..?,



    Thanx again

    Flemming

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  • 323 Answers

Try this: Press and hold the "tone" button for 5 seconds. This will reset the unit.

Posted on Apr 20, 2008

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2 Answers

HOW TO RESET HARMAN KARDON AVR70


Hi, Try this. Hope this helps and I have the link here to the manual.
Processor Reset
If the AVr behaves erratically after a power surge, first turn off the front-panel
main
power switch and unplug the Ac power cord for at least 3 minutes. plug the cord back
in and turn the AVr on. If this procedure doesn't help, reset the AVr's processor as
described below.
note: resetting the processor will erase all user configurations, including speaker and
level settings, and tuner presets. After a reset, reenter all of these settings from your
notes in the Appendix worksheets.

To reset the AVR's processor:

1. press the front-panel Standby/on switch to place the unit in the Standby mode (the
Standby Indicator led will turn amber).
2. press and hold the front-panel Standby and memory/folder buttons until the reSet
message appears on the front-panel message display.
3. press the memory/folder button again to reset the AVr's processor.
If the AVr does not function correctly after a processor reset, contact an authorized
harman
kardon service center for assistance.
to locate an authorized service center,
visit our web site at www.harmankardon.com.

https://www.harmanaudio.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw409ee4c9/pdfs/AVR700NEW_OM_EN.pdf

Jul 28, 2016 | Harmon Kardon Harman / Kardon Avr 70...

1 Answer

Harman kardon avr 151 stuck on tv speaker mode


Hi
Try this.
To reset the AVR's processor:
1. Press the front-panel Standby/On switch for more than three seconds to turn the AVR
off (the Power Indicator will turn amber).
2. Press and hold the front-panel Surround Modes button for at least 5 seconds until the
RESET message appears on the front-panel Message Display.
NOTE: After performing a processor reset, wait at least 1 minute before pressing any
Source Selector buttons.

Good Luck
Happy to help

Jan 04, 2014 | Harman Kardon Audio Players & Recorders

1 Answer

Hi, I have a Harman Kardon AVR 300 that I picked up at a local sale. When I power it on, it switches fine to each input except the AM/FM tuner (the preset, tuning, & tuner mode buttons don't seem to...


Hello Sir, Hi, you may try the following
  1. try cleaning the switches
  2. if this does no solve the problem, its the selector circuit. this may be digital, so you need to search the IC that selects the FM mode both with tuning. this is fair complicated.
  3. buy a cheap separate FM tuner, run it on auxiliary input.

Mar 22, 2011 | Harman Kardon AVR 300 Receiver

1 Answer

Cripes, been working great for several years, (My Harman Kardon AVR 335) but my coffee maker shorted out and trip the circuit breaker in my house that must also be in line with living room. Of course I...


Sounds like it's in protection mode, receivers do this so avoid circuit damage. It's usually only when speaker connections are shorted, but here it appears it has a surge protection of some kind. A local hifi shop will usually be able to reset such problems.

Jan 05, 2010 | Harman Kardon AVR 335 Receiver

1 Answer

I have an AVR 335 less than 3 years old no sound


Hello

Yes, there is something you can try, to know where to look for the problem if this happens again. If the receiver is still under warranty, just send it back, otherwise, open up the amp and trace the path back from the speaker channel to the capacitors on each channel, this is usually the problem(you should be able to see if it is blown, cheap to repair).

If all the channels went out at the same time, there is something wrong with the central unit, to repair that, if it is not the above problem, cost expensive.

Hope this can help you.

Kind regards
Andrea

Nov 09, 2009 | Harman Kardon AVR 335 Receiver

2 Answers

My Harman/Kardon AVR 140 is stuck on stand by mode


I have the same problem on my AVR 1550 - its been bugging me for ages then it works again, then it doesn't ...

Aug 28, 2009 | Harman Kardon AVR 140 Receiver

1 Answer

I'm looking some info on a diode that has cracked and the only thing about it is that its D788 in a Harmon-Kardon AVR 335


D788 is a zener diode rated 5.6V 1/2W, part #HVDMTZJ5.6BT. It shouldn't be too hard to find one of those. Good luck with the repair!

Jan 10, 2009 | Harman Kardon AVR 335 Receiver

2 Answers

Harman Kardon AVR 120 turns off by itself after normal work for about 1 min


Do you get an indication on the display where the point of failure might be? It would show up on the LCD speaker diagrams just before shutting off.

Dec 05, 2007 | Harman Kardon AVR 120 Receiver

1 Answer

Goes into standby mode


press the off/on buttun and keep it pressed in while pressing the standby button... it should fix it

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