Question about Harman Kardon AVR 130 Receiver

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No sound in hdmi mode unlock flashes on display I get sound in cd

I have a harman kardon 745, receiver worked fine for 2 years now it is in "unlock" mode but only in hdmi, when I place it in cd mode I get sound . I have checked all connections but the unit hasn't been moved, so I don't understand how it could have gotten locked and no sound while it is in hdmi. Any ideas

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  • 8 Answers

Its asking your permission to unlock the setup menu. When you hit setup, and it says "unlock," you have to hit one of the navigation arrows on the remote control. Once you have unlocked the menu, you can assign the audio to that HDMI input.

Posted on Sep 07, 2009

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Posted on Jan 02, 2017

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


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(AVR 645 volume blue light was not pulsating)
When device is turned on, it shows all display indicators,
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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.
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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

No sound,no video,front panel display will display.harman kardon


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Was a solution ever found for this? I have almost the same problem, except that mine makes a horrible sound through the speakers before it shuts off. However, after an attempt or two, mine usually starts working and sounds fine (I love how this thing sounds!). It seems to happen more when I've let it sit for a week or two. When I use it regularly, it usually works fine. It's almost like it knows when I'm about to give in and replace it... because it will start working again! Maybe I just need to make an effort to use it more....

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Harmon kardon 745 displays "unlock" no sound for tv or movies


I also had this UNLOCK message on my Harman Cardon AVR 130.
The reason for this error was - in a hurry I've plugged the optical input into optical OUT! Double check that your connections in the back are correct and hopefully it fixes your problem.

Cheers,
Sergey

Jan 11, 2009 | Harman Kardon AVR 130 Receiver

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