Question about Toshiba 57H83 57" Rear Projection HDTV

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Color issue In upper left hand corner of TV the green/red (purple) colors are blurred and blended. Recently moved and have changed satellite box out. Problem still exists. Any ideas on how to repair?

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  • mchenry52 Jun 17, 2008

    Please advise what part/parts I need to ask for when I order these items.

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Replace 120k resistor on the blue video output module. Resistor is located next to the blue video output transistor (has heat sink). If you replace it with a 1/2 watt carbon type, it will probably never happen again. I recomend the same resistor on the red and green video boards at the same time.

Posted on Jun 17, 2008

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1 Answer

Green and purple shadows in the left upper corner


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 05, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

There is a wave (color change) on the upper left hand corner of


Convergence is dead.Know how to solders?Must replaced the 2 convergence ICS,and all it resistors to solved this problems.Buy a convergence kit to fix it ur self.Tries Tv repair World.com,Tvrepairkits.com for the convergence kit.The shop will cost U $300 for parts and labors.

Feb 06, 2010 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

The color seems to be off. No red, and lots of purple. This is a Toshiba 57H81 wide screen big box tv. It was purchased in 2002.


Could be a bad board within the tv but it is sometimes the source input meaning it could be dvd player, cable/satellite box, etc causing the loss of color but it is unlikely. I have one of these tvs and they use red green and blue projectors to reproduce the colors so when the red projector fails then you get purple which is green and blue colors combined without the red. I have found it to be sometimes a bad connection inside the tv and I found insects such as roaches inside others. Using extreme caution when opening the rear cover of any tv due to dangerous and fatal high voltage. You might find that simply cleaning out the inside of tv and reseating all the connectors might resolve your issue otherwise you would have haul this tv to a repair shop where you pay half the price of a new flat screen lcd for just repairing this tv which will probaly have another color go out next month.

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

2 Answers

Blue blur in lower left corner & missing blue color eslewhere


panel defective,not worth repair.cost would exceed value of tv.

Jul 29, 2009 | Projection Televisions

1 Answer

Screen hazzy and issue with blue convergence


bad convergence would cause show to look as if it was supposed to be a 3-d movie, if a bulb was going out then people would look purple blue -green,or some other off color, so likely the green bulb is going out from the color of the people you described.

Feb 06, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

Color problems


if you have hd cable or satellite box make sure the component cables are properly connected(green red and blue) and matching same color in source (cable box or satellite and tv as well)
also make sure in tv menu that color and tint are 50%

Jul 03, 2008 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Color separation


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=
good luck
please mark the post with a fixya

Mar 03, 2008 | Panasonic PT-51HX41 51" Rear Projection...

3 Answers

Color problems


green overpowering makes me think you have a crt problem. or even a bad blue or red crt.

Dec 18, 2007 | RCA D52W20 52" Rear Projection HDTV-Ready...

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