When I turn the tv off, it shuts off right away-it doesn't even have time to have a picture. The code displays a 2-2, a short protect circuit. I've replaced the convergence chips about 8 months ago but noticed there was a yellow horizontal line going across the tv the night before it quit working. I have 2 new convergence chips and about 4 new resistors(although they don't look burned ). Where should I begin looking/testing?
SOURCE: Wavy picture except when displaying a 1080p image
Elsewhere! Bad hyper board =bad caps on board need replacement = find a different tech who has heard of this repair or
have him research fixya / Toshiba/ 42H81 / hyper board ......T.
SOURCE: lines in picture
I had this problem around the time my TV was 3 years old. I ended up having to get it repaired at a TV repair place, it cost me $375.
SOURCE: toshiba tw40f80, replaced both convergence ic's, power light still blinks
Solder yoke plug and vertical IC connections.....try again.
Let me know.....T.
BTW....Tosh recommends STK-392-110's replace with -110T's
Toshiba OEM.....then there is no question about resistor value
change......
SOURCE: slight convergence problem after changing convergence circuits
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.
SOURCE: My TN55X81 is showing the same problem.
Replace the IC's with STK 392-110T.
Toshiba has a Service Bulletin on this problem.
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