Question about Harman Kardon AVR 85

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Display doesn't work

The display on my receiver has not worked for a long time. Before it stopped working completely, it used to turn on and off by itself. Almost like it had a lose connecting cable inside.

Everything else on the receiver (from 1998) works fine. I just wish I could see what mode it's in without connecting it to a TV.

I have just opened the receiver to see if I could find a cable that wasn't connected properly but could not find anything obvious. Does any of you have an idea for a quick solution?

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The actual lcd is most likely losing its filamenty voltage from cracked solder connections. The very end pins on both sides of lcd display are connected to a filament inside of display tube. The display will go out if filament voltage is lost. If you can see the connections where lcd solders to front board look at the outside pins for ring cracks. I may be able to get service manual if you need it kstahl65@att.net

Posted on Jan 26, 2008

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Same issue on my AVR75, I'll check for bad solder joints as well. Thanks.

Posted on Oct 07, 2011

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I agree with the above.

Posted on Jan 27, 2008

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