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I have a toshiba 57h81. when i turn it on the picture is scrambled and it takes 5-10 minutes to descramble and the quality and color of the picture is not good.

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Press power button for 10 seconds .
also change disaply resolutioin.
check your power supply and earting is proepr working.

Posted on Nov 24, 2008

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Turn on tv and get full screen but after 5 minutes half the screen starts to scramble then goes blank leaving me with half ascreen


I would suspect your power supply deflection board is failing. Normally these tvs have a problem with the hyper board in which the image is scrambled and then clears up. Your problem is just the opposite and indicates a part is heating up on the power board. A good visual look at the board will be your best starting point. Look for burn marks, a capacitor that is rounded on top or leaking. Also look carefully to ensure your CRT bulbs have not leaked fluid onto one of the boards.

It's a starting point.

Feb 24, 2011 | Toshiba 57H81 57" Rear Projection...

2 Answers

Toshiba 57h81 location of vidio baord


yes they are bad, they are surface mount on the digital board. Board replacement is advised. They are not easy to change if trying to replace the capacitors.

Dec 08, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Picture colors scrambled


Ur convergence it dead,Know how to solders?Buy a convergence kit to repair.These websites have the kit.Tv repair World.com,Tv Repair Kits.

Dec 12, 2009 | Toshiba 57H82 57" Rear Projection...

1 Answer

TV picture is red.


Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.

May 15, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba Projection Television Problems


Hi,

we are facing server problems please reply to me at coolguy4u_008@yahoo.com

don't worry i have found your part..

Apr 11, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81 Color Problem


sounds like your green tube is set to high.
take the front cover off and the plastic cover under that
you will see a black box about 6x6 with 6 controls one is for focus the other is for intensity
here a guide for sony but yours should be close.

Mar 14, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Is my Toshiba 57H81 worth repair?


Bounce horizontally usually means up and down,which relates

to the vertical output IC. Solder IC301, IC401 pin connects==try

again.You can easily isolate "bounce" problems by lightly

tapping on the vertical IC heatsink....Let me know if you need

further assistance.....T.

 

PS. Though hard to find, a qualified tech could do that repair

in home for 300. to 400.00...

Oct 20, 2007 | Toshiba 57H81 57" Rear Projection...

4 Answers

Toshiba model 57H81


If you have zagged lines there are 10 small surface mounted capacitors you will need to change on the HYper Board. This is not an easy repair so alot of folks simply replace the hyper board. You will need a service manual to take this set apart and to get the proper part number. If you have no TV repair experience or do not know how to solder, as the hyper board has sheild arounfd it, you should play it safe and call out a pro to assist you in this repair. Good Luck

Mar 19, 2007 | Toshiba 57H81 57" Rear Projection...

2 Answers

Picture


When you say scrambled, What or how is scrambled?

Sep 02, 2006 | Toshiba 53H71 53 in. Rear Projection...

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