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Toshiba 55" projection TV 55H70 blue bowed line from bo    
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twitch122



Joined: 05 Jun 2008
Posts: 2
Location: MN
PostPosted: Thu Jun 05, 2008 10:19 pm    Post subject: Toshiba 55" projection TV 55H70 blue bowed line from bo Reply with quote
Hi, I'm getting a blue bowed line from bottom corners of the TV. The bow is about an 3” or so thick or so thick and starts in bottom two corners and bows up to about 1/4 way up the TV. The bottom portion under the blue rainbow is a solid yellow crescent. I have tried convergence settings to no avail, since it only moves them slightly.

Any help would be appreciated!

Thanks,
Craig

Toshiba 55" projection TV 55H70 blue bowed line from bottom
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kuhurdler



Joined: 28 Dec 2006
Posts: 2582
Location: Overland Park, KS
PostPosted: Fri Jun 06, 2008 11:37 am    Post subject: Reply with quote
sounds to me like your convergence amps have failed. No amount of adjustment will fix this. They must be replaced.

the two chips are STK392-110, and both of them should be replaced at the same time.
twitch122



Joined: 05 Jun 2008
Posts: 2
Location: MN
PostPosted: Tue Jul 01, 2008 1:18 pm    Post subject: Reply with quote
kuhurdler wrote:
sounds to me like your convergence amps have failed. No amount of adjustment will fix this. They must be replaced.

the two chips are STK392-110, and both of them should be replaced at the same time.


The STK392-110 IC's were the problem, thanks! Took me awhile to get at it and solder the new parts in, but fixed the TV for under $15.

Thanks much!!
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