Question about Toshiba 42H81 42" Rear Projection Television

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Sound is muffled toshiba 57h81

Mute is off but sound is muffled even when volume is set to the max.

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There is a switch at the back of the set for audio, it is in the wrong position.

Posted on Jan 07, 2009

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Volume Stopping Instantly


A few things to consider: if mute on the set is not on what about the box if you are using one?

Speakers could be switched off in the set.
There could be a internal / external speaker switch(not common but possible)
Sound on the set could be muted or turned real low or off.

if the image you see on the screen is there--either it is from the set or a box if one is used.

only a few things other than the sound circuit being bad will cause this--very few sets with actual no sound problems are around.


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Apr 03, 2012 | Mitsubishi Projection Televisions

1 Answer

Have a toshiba 42H83 how do I get into service mode? think it is menu menu(hold) and push what at the same time


ENTERING TO SERVICE MODE
1) Press MUTE button twice
on Remote Control.
2) Press MUTE button
again to keep pressing.
3) While pressing the MUTE button,
press MENU button on TV set.

May 16, 2010 | Toshiba 57H81 57" Rear Projection...

2 Answers

Blinking light without picture on Toshiba 57H81


No good news here sorry!

Power board and video X and Y boards need intervention If you are going to take a look you will find that one or even both boards have blown capacitors and burn marks along the transitor

You might be able to claim it as fusion on your insurance policy ( parts only usually) but thyat at least is some relief


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Aug 31, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

No Sound on Toshiba 57H81 projection TV. Picture is fine.


The sound amplifier IC has went bad and needs replaced. Call a good TV Tech.
Check with the BBB 1st before you decide on one.

Jun 19, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

My Toshiba 57H81 has a 'jittery' picture.


I have the same prob need to change the resistors as a first resolution. there should be 5 of them, if you dont soon and i mean soon you could cause the skt to go bad and have to start over in your repair

Mar 08, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81 57" TV Power


I have a toshiba 55hx70 same problem,repair guy just left said it was the power supply and wasnt worth fixing 350 to 400 dollars The tv is 9 years old and they wouldnt even take it to shop. Its been a great tv firs thing to go wrong.. Wo nder if I could replace it myself???

Dec 22, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81


Check all fuses in the power supply and look for any bad connrctions on the PCB. You are probably missing the 130 volt supply to the horizontal circuit. Common reasons are: Shorted horiz output transistor; flyback transformer, picture tube arcing , bad power regulator IC. In short, you need to get a qualified tech for this symptom. Hope this helps.

Oct 29, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81 picture bounces. Can't tell if horiz. or vertical.


Unstable picture, wavy, jittery, and loss of sync are a symptom of bad capacitors in the hyper module. The problem is worse when the set is cold, but when warm the sympton gets less or goes away. In the latter stages the problem never gets better even after the set has been on for hours. There are about 6 surface mounted caps (10mf/16) inside the shielded Hyper module. The module is vertically mounted behind the jack panel and can be unplugged from its socket after unsoldering the 4 anchor tabs on the bottom side of the PCB. This type of repair should be made by a qualified technician do to the complexity of chassis removal and expert soldering skills.

Oct 25, 2007 | Toshiba 57H81 57" Rear Projection...

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