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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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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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This receiver has 100 watts per channel. If b side speakers aren't working you may have them hooked up wrong. Try connecting the B speakers to A terminals to make sure speakers are functioning. Please see the user manual below for wiring diagrams.
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Make sure that you are using the Audio Out ports (not one of the audio in). Next go into the menu. Select the Audio setup option and see if there is a line for enabling the external speakers. (Often this corresponds to turning off the internal speakers but not always.)

I hope this helps. I'm not familiar with the specs of Techwood TV models. Some TVs only have an headphone/earphone (3.5 mm) jack as their audio out. In that case, you'll need an adapter to convert the RCA audio to the headphone jack.

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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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Can I connect a Computer to a Techwood DDR 94 AV Digital Surround Receiver so that I can listen to radio stations online?


Yes. You can. First, you need a cable that has a stereo pin called stereo jack (the type that has on ear phones/head phones) on one end and component cable terminals (the type that comes with video/ audio left and right) on the other end. To further explain, these terminals come in yellow red and white colors. You only need the red and white ones. This is available at electronic stores. Otherwise a person who service electronic equipments can easily make one. Basically, this cable will have a stereo jack (small one) on one end and split into 2 cables with the red and white terminals. Once you have this cable, connect the stereo jack to the ear phone socket of your computer and connect the other end to the audio input of your Techwood receiver. You can select anyone (CD, DVD or TV). These inputs are right above the speaker wire connections. Be careful to connect to the socket that say "in" . Now, let us assume you have connected to the CD, select your source as CD on your techwood receiver. Play music on your computer and you should be able to hear the output through your Techwood receiver. Good luck

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My (Techwood 400 Watt Home Theater Receiver PLR85) won't turn on


I have had the same problem.

You have a faulty cooling fan.

The system senses the fan isn't working, and knows that without it, it will over-heat. So it goes into a "self-protect" mode - hence the green light.

You need to replace whatever part of your fan has gone bad.

Ryan
Franklin, IN.
MusicManRyan@hotmail.com

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