Question about Toshiba 42H81 42" Rear Projection Television

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Red out of focus

Tv wont auto focus tryed both the covergence adjustment in the user menue and the one in service mode but the red wont adjust I can adjust the red in the horizontal position but not the vertical it is way off is this a stk problem or other?

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It's an STK problem. The repair can be performed yourself if you're handy with the soldering iron. Below is a link to a guy who performed the same repair himself with step by step directions and pictures. Best of luck to you.
Greg
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on May 22, 2009

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Hi. your convergence board is failing. this board regulates the the alignment procedure and , the chip set is damaged. replace the convergence board soon.

Posted on May 22, 2009

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1 Answer

Is there a way to manually adjust the convergence on a Hitachi HDTV modol #43FDX15B?


Hi James,

If Auto Focus (Auto Convergence) won't complete the set-up stop trying to adjust it. There is a fault in the convergence circuit!! ICs have to be replaced and maybe some burnt resistors.

If you access the service set-up menu and try to adjust the "defective" circuit the Auto-focus may not work correctly after the IC's, etc are replaced. Experienced technicians know that the service menu allow easy resetting to correct the misalignment, etc. "First Time" technician can be easily misled, waste a lot of effort and never get a correct picture.

If you want to attempt the repair, buy the correct parts from a service guy that does this type of work. I suggest having the repair done by a local competent technician that is experienced with Hitachi Convergence Problems. It is considerably more challenging than changing a fuse.

Our Convergence Gallery shows a variety of Convergence Faults. If you live in Toronto, ON., Calgary, AB., or Vancouver BC. it costs $257 for Hitachi in home convergence repair.

Good luck.

Robert

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You have a bad sensor, a bad digital convergence board, or the new board is not working correctly. I would start by swaping out the convergence board or exchange it for another one. Good Luck

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1 Answer

Auto covergence will not converge


Try this with tv turned off press and hold at same time the vol- and ch- wait untill TV comes on then release Buttons,TV will either start auto convergence or you will be in the service menu to adjust convergence.

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1 Answer

I have a toshiba tv model tp50g90 I have replaced the convergence chips stk392-110 convergence was corrected but I have a problem yet red not managed to focus on the user menu in the option of...


Thats the way it works. You have to adjust the other colors to the red. You adjust the red from the back of the set using the convergence magnets on the tubes. Then you adjust the other colors to match the red. It's much easier if you have the plastic screen from Toshiba used to align this set.

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1 Answer

Panansonic rear projection TV Convergence needed


Go to this web site and Print out information on How To Enter Service Menu http://www.freelist.org/archives/techassist/09-2005/msg01111.html Read this very carefully when trying to get into service menu its no easy walk in the park, i hope i never have to set convergence on another myself. (1) Switch to cable (2) Set sleep timer 30min ,exit menu , now enter channel 124, Press vol- on tv ,at zero volume a Red Ck should appear , Re enter menu turn sleep timer off ,Now Press power untill you see oVoo using ch+ Adjust to OV1 ,now Press vol+ You should now be in convergences---- Mute locks- cursor to move- vol-&vol+/ch- ch+ to ajust lines---- Press R-Tune to switch color to adjust When done Press (7) to save then Press Then Press and hold power and action for 5 sec . GOOD LUCK.

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1 Answer

Rca home theatre big screen tv


# 1 above you have covergence problems ,there is a service flash from rca to fix your fault,ask your tv shop. fault # 2 above turn off the color and adjust your screen settings for a grey picture,set brightness and contrast to middle settings. # 3 fault read #1 cause if your auto focus will not correct you require service there is a harness connector that looses connection and causes several fualts on the 52" rca's you can repair the fault but if you miss the harness replacement you will do it again.

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1 Answer

Double image - not covergence


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 21, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Saving settings in service menu


Hi, I have a similar problem too on the SP47Q7HF. That one the lower level to match the red, and blue. Turn off the tv, and then restart, and still the colour runs off. Do you have a manual on the service mode adjustment? Or where to upload this info? I would like to try and adjust it. Thks

Sep 19, 2007 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Covergence problem


press and hold menu then push power then volume.

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