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How can I fix HDTV signal problem on a Mitsubishi WD-65731 DLP TV?

My Mitsubishi HDTV (model # WD-65731) no longer receives digital signal. I've replaced the antenna and the cable. It worked sporadically for a while but now I get no signal. I've tried running the auto channel search to see if that would worked with no luck. Everything else works on the TV -- HDMI from the Dish converter box and from a PC connection. I've read some help sites that maybe the tuner board needs to be replaced. I wanted to confirm this course of action from an expert before buying a tuner board replacement.

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  • Mitsubishi Master
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Tuner is definitely no good.

Posted on Dec 22, 2016

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Posted on Jan 02, 2017

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Mitsubishi wd-65731 screen flickering


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. .

Nov 13, 2016 | Mitsubishi WD-65731 65" HDTV

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Outer screen scratch


Mitsubishi is currently offering the following parts


Model Number Model Description Part Number Part Description Price Available WD-52631 52" DLP TV I/B WD52631 OWNERS GUIDE $15.00 YES WD-52631 52" DLP TV I/QR WD52631 QUICK/REF WD52631/57731/65731 'G' $3.50 YES WD-52631 52" DLP TV 915P049010 LAMP (150W) (V33/V33Y/V33+) 'G' $249.00 YES WD-52631 52" DLP TV 290P137010 REMOTE 'G' $33.10 YES

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1 Answer

Timer light continues flashing; won't turn on/off


Could be an open internal fuse or power supply failure

Jun 25, 2017 | Mitsubishi WD-65731 65" HDTV

1 Answer

I have a 57" mitsubishi 1080 dlp tv and it has a white dot on the picturewhat is it and how to fix it.thanks terry


If the dot is there whatever the image source / input are you using then the defect is in the DLP panel - the mirrors from the panel corresponding that dot aren't commanded anymore. It can't be fixed, the panel must be replaced. It will be expensive.

Feb 18, 2010 | Mitsubishi WD-65731 65" HDTV

1 Answer

Changing the lamp on a Mitsubishi DLP WD-65731, when trying to put back the cartridge, it semms that it does not go all the way in since the two screws do dot reach the nut.


Look inside the tunnel with alight see if the contact plug is straight. Sometimes this plug can get bent to the side a little.

Sep 01, 2009 | Mitsubishi WD-65731 65" HDTV

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the buzzing noise you are hearing is from the lamp ballast as it strikes the lamp. that is quite normal but it should only be momentary. it should not be constant.

Dec 29, 2008 | Mitsubishi WD-65731 65" HDTV

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