Question about Toshiba 42H82 42" Rear Projection HDTV-Ready Television
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Posted on Jan 02, 2017
SOURCE: convergence -manual
Replace the convergence amps and test and replace any or all of the 2.2ohm resistors in the yoke return path out in front of the amps. This unit takes two STK392-110 Sanyo originals, DO NOT GET CHINESE KNOCK-OFFS... Buy them from Acme sales out of Florida and you can be assured they're originals.
William Rayburn, CET
PO Box 442
Long Beach, WA. 98631
Posted on Oct 28, 2008
SOURCE: convergence problem
Common issue with all rear projection TVs is for the convergence correction circuitry to fail. Set needs new STKs and possibly some tight tolerance resistors..... if not a DIY definitely a problem for a shop.
Posted on May 18, 2009
My experience has been that the resistors have fallen out of range. These aren't expensive and neither are the caps that surround this area. If you're pulling the board out to change the resistors, might as well change the caps, too. If you're strapped for cash, but have a multi-meter, you can test the caps and the resistors after they've been taken out of circuit to save a little green. Let me know if you need any help testing them; I'd be glad to help.
Posted on May 22, 2009
Absolutely! if the consumer control has failed to rectify the problem you need expert help. There are two control boards near the power supply 1 or both are involved and more than 90% of the time both of the boards have to be replace otherwise the problem will occur again in a short time.
It is not a DIY project for the unskilled as it has to be tuned correctly when it is installed.
Better to leave it to the professional
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Posted on Aug 31, 2009
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