Question about Toshiba 57H81 57" Rear Projection Television

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Blue flicker I have a 57H81 and it has developed a blue flicker. Most noticeable in the dark fields. It is very intermittent and borders on just annoying... almost like something is heating up. Any ideas? I am debating on whether or not to turn the set into a boat anchor.

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Re: blue flicker

Im thinking the convergance ic has loose solder connection or is about to go.

Posted on Dec 19, 2007

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Our 57H81 is about 10 years old and we can hardly see the picture on tv/movies especially - when a dark scene is shown. Do we need to perform maintenance or change out the projection lights to get the...

You can try cleaning the lens/mirrors of the set with a lint free cloth and a cleaning liquid made for cleaning glass. The dark image can sometimes be caused due to dust on these parts. If that does not work then I am afraid that you need to purchase replacement CRTs(the three tubes at the back of the set). Each of them produce one color - Red, Green and Blue and all 3 have to be replaced to resolve the problem, unless you can visually identify a malfunction with one of the tubes(If one of tubes is a lot dimmer than the other 2).

Sep 18, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

Dark, fuzzy picture

The fluid in the CRT bulbs is most likely cloudy. Check the blue to see if fluid is clear. If fluid is clear, then likely your flyback transformer is failing. I assume you already check the brightness and contrast settings on the tv.

Feb 18, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

Borders bowed inward,blurred red,blue, & green

the next time it is not working go into the customer menu with remote and call up the convergence grid and look---there---if convergence is way off and or comes and goes---this set uses 2 Stk-392-570 ic's and it is quite common to see them become intermittant.

Aug 03, 2009 | Mitsubishi WS-65809 65" 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...

2 Answers

Toshiba 42H81 - Screen flicker

Since the problem initially would correct itself, it suggests a poor connection somewhere that "heat" would resolve. If you can solder, try resoldering any joints that appear to be grainy or have rings. Please note that these sets will retain high voltages that can be dangerous even when unplugged. If the resoldering fails to resolve the problem, let us know and we'll look further.


Dec 31, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Fuzzy screen

You have a defective Hyper a pro

Jan 01, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Update to flickering screen on Toshiba 42H81

How did the repairman prove the blue CRT is bad ? Did he cover
the CRT leaving a good red & green video with no flickering or did
he cover the red & green and observe the flickering in blue...?
Did he discuss the hyper module with you ?.........T.

Oct 24, 2006 | Toshiba 42H81 42" Rear Projection...

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