Question about Toshiba 57H82 57" Rear Projection Television

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Convergence problem My picture became blurry and blueish. The auto touch focus failed, manual can not move the blue cross, red cross can overlap with green one. Is this CRT blue tube bad? How do I open the TV back to access the parts? Thanks.

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  • weiwei Oct 15, 2007

    Can any one give me the details to replace the IC? I opened the back, but could not locate the ICs. If any one can show me a picture that'll be great.



     



    Thanks.

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Blue convergence IC is bad! Blue CRT OK!

Required for repair---pull chassis,replace STK392-110 X 2.

Re-assemble,adjust convergence as needed.

Posted on Oct 13, 2007

  • Vista Electronics Oct 18, 2007

    Convergence IC's are on two large finned heat sinks.



    Excellent soldering  technique required.Also,use OEM quality or better IC's. I use Hitachi or NAP. Generic



    not recommended.

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1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

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your convergence settings are moved and they need to be adjusted and if you adjust and still have the problem then its the problem of convergence STK ICS and they need to be replaced.

for adjusting the convergence please click this link this will help you how to adjust the red, blue and green settings in your tv.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

for replacing the convergence STKics just click this link
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

feel free for further assistance.

thanks.

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I hav a RCA model D52W25 its 52" it has convergence problems dont know how to setup the color things can u help??


Click on the following link :

http://www.riddledtv.com/repair/RCA.html. Go to the following section

RCA 52" D52W25 ITC222 rca_d52w25_small.jpg
(2) (3) (4)
(5) Stretched Image at top and bottom edge very distorted. Reheat all the surface mount solder points on the Small Signal Board. Then realign the set including convergence menu. To enter service mode: power off the set for 10 sec, then hold down Vol- and Ch- buttons for 10 sec. See this link: Alignment Procedure (pdf)


Also download the Alignment procedure pdf file. Hope this will help you. Please let me know if the information was of any help to you or you need further assistance.

Thanks

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RCA 52 HDTV working fine when suddenly a band of color, red, blue and green appeared at top of screen. Picture curved inward from top and bottom. Picture is blurry and has double images. Television is less...


There could be a convergence problem. Try these:
  1. Press MENU then choose SETUP>AUTO CONVERGENCE.
  2. When Auto Convergence is complete, the Red center convergence menu appears. The cross in the middle of the screen should be yellow. If it is not, use the arrow buttons to move the red cross to overlap the green cross. Press OK when adjustment is complete.
  3. The Blue center convergence menu appears with a cyan cross in the middle of the screen. If it is not, use the arrow buttons to move the blue cross to overlap the green cross. Press OK.

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Red, green and blue colors don't match up on screen.


Please replace convergence out ICs (usually two) in TV.
If it is Hitachi 43UWX10B then its convergence out ICs are available in Part Store
Thanks.

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1 Answer

Convergence problem


http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

You can download the manual here. Insrtuctions for auomatic convergence are described. I copied the instructions below.

Automatic Convergence
Your HD Monitor’s picture tubes might have been disturbed during delivery or
after you moved the HD Monitor, causing the color in your HD Monitor to be
out of alignment. The colors adjust by starting auto convergence.
IMPORTANT: Auto convergence works best once the HD Monitor has
warmed up for at least an hour. If you've just unpacked your HD Monitor,
it's a good idea to repeat the Auto convergence function when the
HD Monitor's been running for at least an hour. See page 38 for more
information about Auto convergence.
1. Press OK to begin auto convergence.
2. When the auto convergence is complete, the Red center convergence menu
appears. The cross in the middle of the screen should be yellow. If it is not,
use the arrow buttons to move the red cross to overlap the green cross.
Press OK when adjustments are complete.
3. The Blue center convergence menu appears with a cyan cross in the middle
of the screen. If it is not, use the arrow

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1 Answer

Toshiba 65H81 convergence issue


Does the blue and red crosses move at all ... eather vertically or horizontally. if they move at all then it may not be the chips.. could be a resistor. if the crosses dont move then it probally the ic. these chips run about 7 to 45 dollars apeace depending on type. at our shop we charge around 125 to put in.

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2 Answers

TOUCH FOCUS ERROR on Projection Toshiba TV


My 57H81 won't converge, plus I get the "touch focus error" message. I could get manual convergence of blue, but not red. Plus, during touch focus the red would not move horizontally

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

2 Answers

Toshiba 57h82


your convergence amp ic's./if you want to cheat/align the other two colors and manualy move the green yoke rings on the green picture tube neck so the green cross aligns with the red and blue.,they shuold form white when all three are aligned,on top of each other.

Sep 13, 2007 | Toshiba 57H82 57" Rear Projection...

1 Answer

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The symptom suggest a faulty converge ic.you need to replace that ic ( stk392-110 ).

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