20 Most Recent Mitsubishi LT-40153 LCD TV Questions & Answers

All TVs today are actually computers which also receive TV frequencies. The audio has to be decoded from the digital signal then goes to an analog audio amplifier. When you hear no sound with the picture do you hear anything coming out of the speaker? A hissing sound when the volume is way up?

If you hear a hiss then the amplifier is working but not getting anything to amplify. This could be due to a bad solder connection or a problem with the CPU and/or a switching circuit. Without a schematic I'm guessing here.

The bottom line is, there's probably nothing you can do to fix it unless you're used to dealing with SM (surface mount) technology and can touch up all solder connections from the CPU to the audio amp.

Whoever is fixing the TV should be able to tell you where you're losing the signal from the RF decoder to the amplifier as long as the problem is not before the decoder (which is probably all in software that the CPU runs.)

Mitsubishi... | Answered on Oct 05, 2017

I don't think this to be rectified with a factory reset. Check its backlight inverter board.

Mitsubishi... | Answered on Jun 23, 2013

Check its speakers. If found OK, check and replace the audio output card. Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. Some times, the ads attached with each posts, both at the right and bottom, might help you to find the availability of spare parts. There are more than 750 posts to different brand TVs now.

Mitsubishi... | Answered on Sep 14, 2012

do nothing except reset, if in warranty call Mitsubishi.

Mitsubishi... | Answered on May 09, 2012

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Mitsubishi... | Answered on Nov 14, 2019

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Mitsubishi... | Answered on Nov 14, 2019

The was a previous answer on Fixya ( John Betancourt Apr 25, 2019 What I did I open it up and removed the panel and clean out the fan.it was very dusty.)

I'm not sure that it will fix you problem but if it does let me know. There's a video on youtube which will a bit more helpful. It's called "Mitsubishi DLP TV Repair - TV is Blinking - How to Identify Blink Codes & Fix DLP TVs".


Mitsubishi... | Answered on Oct 20, 2019

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