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Techwood 400 watt Stereo Receiver PLR85

I have techwood receiver model number PLR85 the rear channels were working, then they quit..the speakers (checked them in front hook ups) work fine. inside there are little green plastic things (diodes?) with 2 wires what are they and what do I do??

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  • golden07 Feb 20, 2008

    Techwood 400 watt home stereo receiver. The Rear channels stopped working (speakers still work) replaced fuse...diodes??(green plastic with small wires that fit into board
    inside by the rear channels. these came loose what do I do????

  • storment2008 Mar 03, 2008

    i can not get the surround to work

  • gitwitmee Sep 26, 2008

    I have a Teachwood 400watt PLR85 and my speakers will not play and I have changed fuses. (Still Nothing)

  • renavsq Dec 11, 2008

    i have a techwood plr85 speaker will not play

  • Josh Gravley
    Josh Gravley Sep 06, 2015

    My b speaker wont work how do i fix that

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The protect light keep comming on

Posted on Aug 21, 2010

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  • MusicManRyan Nov 09, 2010

    The green light is signifying your receiver is going into a "self-protect" mode.

    I have owned 3 of these receivers. They are vicious, pushing 400 watts. They get very hot.

    The problem you're experiencing is the same problem I had. The issue is that your system has detected that you have a FAULTY FAN. The system knows it will over-heat without the fan, so it protects its self.

    Change your fan. Problem solved.

    Good luck finding a fan.

    Ryan
    Franklin, IN.
    MusicManRyan@hotmail.com

  • mikemarti294
    mikemarti294 Apr 01, 2013

    where do you find a fan?

  • mikemarti294
    mikemarti294 Apr 01, 2013

    where do i find a fan? my fan doesn't smell burnt at all

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I have a Techwood PLR85 spearkers will not play, have replaced bus fuses 6v&7v fuses keep blowing out and still nothing

Posted on Sep 26, 2008

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The people are loosing their moral while becoming modern. The
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PLR Sales

Posted on Aug 31, 2010

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My techwood digtal recorder keeps failing to record certain programs. saying recording failure?

Posted on Sep 07, 2009

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Im havin some problem wht the delay what shounld i do an what is a delay is for

Posted on Oct 08, 2008

  • MusicManRyan Nov 09, 2010

    The green light is signifying your receiver is going into a "self-protect" mode.

    I have owned 3 of these receivers. They are vicious, pushing 400 watts. They get very hot.

    The problem you're experiencing is the same problem I had. The issue is that your system has detected that you have a FAULTY FAN. The system knows it will over-heat without the fan, so it protects its self.

    Change your fan. Problem solved.

    Good luck finding a fan.

    Ryan
    Franklin, IN.
    MusicManRyan@hotmail.com

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I have A Techwood 400 watt Home Theater Receiver plr85. When you turn It on About 30 secends after that it mkes a poping noise, and then you cant hear anything .After that the word PROTECT Flashes How can...


Generally speaking, an amp protects itself from heat, shorts and overloads.


Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

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Rear speakers are dead, never got them to work. Changed front to back and rears work so speakers and wireing are good. Is it possible that because I did not hook up a center speaker this is the problem?


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