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Factory reset on hk avr 745 is not working on my avr 745

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: Best speakers for HK AVR 135

klipsch, klipsch, klipsch

Posted on Feb 06, 2008

  • 1 Answer

SOURCE: Harman Kardon AVR 7000 loosing memory

This is what's in the AVR7000 service manual:

Subject: Backup Memory on AVR/DPR/HK series receivers.
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:

Check and replace:
Model: AVR7000
Designator: C730
Location: Front PCB
Description: 0.047 Farad 5.5v capacitor
Part number: # P10790-ND or # J3432147324X

I'm having the same problem and this is how far i got so far. I don't kwow how to get and replace this part.

Posted on Nov 16, 2008

petraman7
  • 1175 Answers

SOURCE: HK receiver has power and volume except on video 2

Hi...
What are you running thru Video 2?
Have you unplugged the AC cord and re-powered up yet?
Thanks

Posted on Jan 19, 2009

SOURCE: I have a harman kardon avr 745....looks frozen

My device is AVR 645, but AVR 745 has the same power regulator board and you could check, if the problem is there.
(AVR 645 volume blue light was not pulsating)
When device is turned on, it shows all display indicators,
no blue light on volume button and no response to any remote or front panel buttons.
Reason for failure:
No 3.3V and 5VD voltages.
I checked bridge rectifier D701 on power regulator board.
One of the diodes was shorted. Also fuse F702 was blown.
Original D701 is KBU6G, but because regulator board is a bit difficult to get out, I decided to use KBU8G. The only difference is Amps rating 6A versus 8A.
Be sure to use SR-5-3.15A fuse to replace F702 and use heat sink paste (you know where) when board is reinstalled.
There is large heatsink in the middle of the receiver. Power regulator board is mounted on the right side of that heatsink. It is down there near the front panel and to get it out you most probably first have
to remove two PCBs hindering access to some regulator component screws. Here are pictures to clarify situation:

harman-kardon-avr-745-looks-frozen-igzigj2finjgh1nndvq1cugs-5-0.png harman-kardon-avr-745-looks-frozen-igzigj2finjgh1nndvq1cugs-5-1.png

Posted on Dec 09, 2014

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1 Answer

Harman kardon avr 254


You can check all your speaker wires for shorts, as well as try the reset to factory defaults procedure found in your owner's manual, but I doubt this will resolve your issue. If you require more assistance, or would like to inquire about repairing your HK, please visit my website at audioserviceclinic.com, and contact me there. BTW, I worked for Harman as technical support for all Harman, JBL and Infinity products. Thank you.

Mar 23, 2014 | Harman Multimedia AVR-254

1 Answer

HK AVR 125 display strobing and no sound, even in headphone jack


Hi...

Find someone that does TV or audio repair and have them open it up. A cable assembly may have loosened during the MOVE.

Cheers

Jan 30, 2014 | Harman Kardon AVR 125 Receiver

1 Answer

Avr 745 goes back in standby mode when I try to turn it on


Please see my other answers for Harman Kardon issues. If you can't find them, please respond back here.

Dec 21, 2013 | Harman Multimedia AVR 745 Receiver

1 Answer

My receiver works fine when I plug my iPod into it, but when I plug my turntable in I can't get any sound. Any idea?


The phono cartridge on your turntable puts out a much lower level signal than your iPod. Back when turntables were popular, all receivers had a special phono input to take care of that. Your modern HK receiver does not have a phono input, so you need to get an external phono preamp. Plug the turntable outputs into the phono preamp inputs, then plug the phono preamp outputs into one of the audio inputs on the HK, like where you connected the iPod.

Oct 08, 2013 | Harman Kardon AVR 745 Receiver

2 Answers

I have a harman kardon avr 745....looks frozen


My device is AVR 645, but AVR 745 has the same power regulator board and you could check, if the problem is there.
(AVR 645 volume blue light was not pulsating)
When device is turned on, it shows all display indicators,
no blue light on volume button and no response to any remote or front panel buttons.
Reason for failure:
No 3.3V and 5VD voltages.
I checked bridge rectifier D701 on power regulator board.
One of the diodes was shorted. Also fuse F702 was blown.
Original D701 is KBU6G, but because regulator board is a bit difficult to get out, I decided to use KBU8G. The only difference is Amps rating 6A versus 8A.
Be sure to use SR-5-3.15A fuse to replace F702 and use heat sink paste (you know where) when board is reinstalled.
There is large heatsink in the middle of the receiver. Power regulator board is mounted on the right side of that heatsink. It is down there near the front panel and to get it out you most probably first have
to remove two PCBs hindering access to some regulator component screws. Here are pictures to clarify situation:

harman-kardon-avr-745-looks-frozen-igzigj2finjgh1nndvq1cugs-5-0.png harman-kardon-avr-745-looks-frozen-igzigj2finjgh1nndvq1cugs-5-1.png

Oct 26, 2009 | Harman Kardon AVR 140 Receiver

1 Answer

Harman Kardon AVR 7000 loosing memory


This is what's in the AVR7000 service manual:

Subject: Backup Memory on AVR/DPR/HK series receivers.
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:

Check and replace:
Model: AVR7000
Designator: C730
Location: Front PCB
Description: 0.047 Farad 5.5v capacitor
Part number: # P10790-ND or # J3432147324X

I'm having the same problem and this is how far i got so far. I don't kwow how to get and replace this part.

Oct 25, 2008 | Harman Kardon AVR 7000

1 Answer

Cant get rear speakers to Work AVR 745 7.2 Surround!!!


Another way to solve this rear speakers problems is to go to the equalizer and have the system recognizes the sound coming out of all speakers. The AVR 745 comes with a microphone on the stick, using that to run the manual equalizer. It is the manual equalizer will set the rear speakers.

Dec 29, 2007 | Harman Multimedia AVR 745 Receiver

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