Question about Toshiba 57H83 57" Rear Projection HDTV

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Red bows and wont realine

Got this second hand and that is when it first happened, at first it was only for a few seconds then minuets now permanent, the red gun/lamp bows at top and bottom in convergence mode will move side ways but not up and down

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Replace the red AND blue convergence IC's. Both need to be changed. You change the blue IC to ensure your repair will be reliable. They are mounted to large. finned heat sinks because they get very hot..hence why they fail more often than any other part in a projection tv. The # on the chips will start with "STK-" followed by numbers. These IC's are available through tritronicsinc.com. They cost about $15 to $35 each. Good Luck!

barneyluc

Posted on Oct 07, 2008

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This is a problem within the convergence circuit. If you can solder, you can fix this yourself. Please confirm that the model is 57H83 and whether oor not you wish to attempt the repair. I will then provide additional details and instructions.

Thanks,
Dan

Posted on Oct 07, 2008

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