Question about Hitachi 46GX01B 46" Rear Projection Television

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Slight doubling of picture, horizontal color arc at bottom any ideas

I need any info on how or what may fix this problem....ghosting/doubling has gotten worse. A color arc has also appeared at the bottom of the screen horizontally.

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  • codydawna Jun 29, 2008

    my tv is 8 years old and i turned it on and now it has double picture and is mostly red and green what can i do?



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Hi, your problem is convergence circuitry. I will get worse then stop. There is 4 things that may cause your problem.
Listed is the most likely to the leased likely.
1- bad convergence ic, I would need to know what colour is the most effected to tell you exsacly witch of the two is gone. Look at the back for ic location IK04/05 for stk392-110.
2- bad resistors, were the ic's or located look for bad resistors, mostly 1 to 3 ohms. I've seen some bads' one
3-power supply, these ic's have power going to them, pine 4/8/12/17 or -23 and pine 5/10 or+23 if they or low or have riple would be also your source, these source's or derived from the power supply look for bad cap's, burt fuse( pico style) or could bad regulator (ic's, transistor, diode).
4- alway's look for cold solder joints, it's a small posibility, but it may be your cause for bad regulation or changes in power goin in or out of the convergence ic's

I hope this help's

What About Bob

Posted on Jan 11, 2008


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