Question about JVC AV-48WP30 48" Rear Projection Television

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Convergence problems? The blue cross will not move. There are blue shadows. Some one else had this problem with their red. Solution was replace ICS. Is this something that I can do easily?

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  • bubba Jun 19, 2008

    The blue cross will not move. There are blue shadows.already replaced skt's.

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  • Master
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If you know how to solder on printed circuit boards Sure, easy repair.

Posted on Jun 02, 2008

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1 Answer

There is a blue shadow to the picture. The color chips were recently replaced and it has been doing this since the replacement. I have tried to adjust the convergence but on the screen with the cross hairs...


STK ICs that were replaced maybe the reason convergence is not lining up or you may have some open low ohm resistors that need to be replaced ,near convergence ICs. STK392-570.
Mats Electronics has STKs for 14.95 each
1-800-628-1118

Jun 23, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Toshiba51hx83 convergence problem


Sounds like your convergence ICs are faulty If you cant move both red and blue in all 4 directions its usually your convergence amp ICs. They are prone to failure as they operate at such high temperatures. If you need any further info on this proceedure please let me know.

Jan 21, 2008 | Toshiba 51HX93 51" Rear Projection HDTV

1 Answer

Blue convergence


replace both STK392-110 convergence ICs. You can get replacements with instructions at the following link.
http://servicemanuals.vstore.ca/

Dec 28, 2008 | Panasonic PT-53WX52 53" Rear Projection...

1 Answer

Cross hairs


Hello, You need 2 convergence ICs if you cannot converge the red and blue lines on top of the green "cross hair". You should be able to use the front panel controls to move the red and blue around. If you can move them around and they just won't move completely on top of the green then the ICs are bad. The ICs are mounted to large,finned heatsinks and have numbers that start with "STK-" and have numbers following. These parts are available from http:\\www.tritronicsinc.com.

Dec 01, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Convergence problems.


Your convergence ICs are likely bad, not typically a CRT or tube going out. A repair shop will fix for $200-400 or if you are very skilled you could repair yourself.

Oct 20, 2008 | Mitsubishi WS-65611 65" Rear Projection...

1 Answer

Convergence problems


you need to replace both of your convergence ICs they are STK392-110 you can get new replacements at the following link and they provide free instalation instructions with pictures. Heres the link
http://servicemanuals.vstore.ca/

May 29, 2008 | Toshiba 42H81 42" Rear Projection...

3 Answers

RED SHADOW AROUND IMAGES of SONY KP-57WS510 RPCRT


Your set uses two STK392-560 convergence ICs they are attached to a large heat sink on the D board. You can save your self about 400 for a twenty minute repair by getting new ICs at the following link as trhey provide free instalation instructions with pics so you can do the job yourself. It only requires basic soldering skills I would order about six 4.7ohm 1/2 watt resistors as well just in case you need them asusually sonys' will burn one or two of the 4.7ohm convergence resistors when the ICs fail. Heres the link
http://servicemanuals.vstore.ca/

May 18, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Blue shadow


You need to replace both convergence ICs numbers STK392-570 this is an easy repair which requiresasic soldering skills. you can get replacement ICs that come with free step by step instructions with pictures so you can do the repair yourself, they also provide free on line tech support in case you have any questions . Heres the link
http://servicemanuals.vstore.ca/

May 11, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Picture has a shadow


You need to change both convergence ICs numbers STK392-110 you can get replacement ICs at the following link and they provide free instalation instructions with pictures and free on line tech support so you can do the repair yourself. Heres the link.
http://servicemanuals.vstore.ca/

May 04, 2008 | Philips 43P8341 43" Rear Projection...

1 Answer

Toshiba 50HX70 Convergence reset


You will need to replace the convergence ICs. You can order them at this link and they provide free support as well as installation instructions with pics so you can do the repairs yourself. You will need to replace both convergence ICs
http://servicemanuals.vstore.ca/

Mar 30, 2008 | Toshiba 50H72 50" Rear Projection...

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