Question about Panasonic SC-HT820V System

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Problem with receiver electronics

Relay in woofer electronics chatters and receiver functions do not work. With cable to woofer disconnected CD, FM other receiver functions appear to work but cannot check sound.

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  • abcd9876 Dec 27, 2007

    Faulty HT820V receiver sends 4 to 5 Hz signal to woofer electronics causing its relay to chatter and receiver does not work. If cable to woofer is disconnected receiver appears to work OK (but without sound). How do I fix receiver fault? What parts can I transplant from a 2nd receiver stuck on VHS? Thank you in advance for your help.

  • abcd9876 Dec 29, 2007

    No, the relay chatter is a symptom of a problem IN receiver #1. A fault in receiver #1 causes relay chatter in electronics in woofer box AND its CD,FM,VHS do not work. (All 5 speaker amps are in woofer box.) W/o 20 wire cable connected from receiver to electronics in woofer box CD, FM,VHS in Receiver #1 appear to work OK but of course no sound. 2nd identical receiver #2 is stuck on VHS and its CD, FM, VHS don't work. But no relay chatter when receiver #2 connected to amps in woofer boxes 1 or 2 and amps in the 2 boxes do work OK. Question: What fault in Receiver #1 is causing relay chatter and CD/FM/VHS malfunction? OR, how can I get receiver #2 unstuck from VHS and its CD, FM and VHS to work?

  • abcd9876 Jan 03, 2008

    Both receivers are identical models but have different problems. Please my problem description above. I would like to get either receiver to work.

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Ok, im not sure what your asking
please rephrase question.

Posted on Dec 27, 2007

  • 1 more comment 
  • Simon Zwaan
    Simon Zwaan Dec 27, 2007

    Ok, so your problem is the relay from your woofer ? and you only have a subwoofer hooked up to it ?

    Make sure the woofer is not getting too much bass, this might account for the chatter. and check if your woofer is hooked into the right output. Do you have any other speakers that do not make strange noises when they are hooked up ?



    Hope that helped a bit.

    Reply if you need more assistance.

  • Simon Zwaan
    Simon Zwaan Dec 29, 2007

    So you have both receivers hooked up and the panasonic one is hooked up to the woofer and is causing the chatter and the malfunction of CD/FM/VHS ?

    What kind is your other receiver ?



    I would first of all check all your wiring and make sure it is fully intact.

  • Simon Zwaan
    Simon Zwaan Dec 29, 2007

    If you want to see if the problem is in your receiver or your speakers/wires try hooking up headphones and see if they get sound, if they do the problem is within your receiver.

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