Toshiba 43H71 43" Rear Projection Television Logo

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Question about Toshiba 43H71 43" Rear Projection Television

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Toshiba 43H71 It appears that I have a convergence issue(can not move the red gun up or down. I have read several problems pertaining to this and it appears I need to replace the STK's chips and possibly the resistors. I work on computers so component replacement is not new to me. Where are these chips located? Can you send me a picture showing the components or direct me to the proper location? Is there a number I should call to order these chips? A local TV shop said they have a number but I'm not sure if I need the part #'s first. I'm aware of the heat sink compound needed to dissipate the heat. Any help on this matter would be greatly appreciated.

Posted by John Walker on

  • John Walker May 22, 2007

    I was able to fix this problem by replacing both STK392-110 along with all six 1.8 ohm 1 watt resistors.(R7711,R7721,R7716,R7726,R7736,R7731). I put the white heat sink grease on the chips and double checked to make sure my solder joints were good. I reconnected all the connectors and tested the unit. After running the convergence setup it works fine. Thanks again for all your help.
    P.S. I used Sanyo chips bought at B&D enterprises www.bdent.com. After all the work you have to do why take a chance on a generic part just to save a few bucks. Quality matters.......

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Anonymous

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Hi, I am having the same exact problem. Finally found this. I ordered the parts and will be performing this when they get in. http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on May 11, 2007

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