Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Rainbow and Bowtie Effect

Here is link to PIC: This just happened after turning on the unit. It is a 2003 model. We bought it new. It has never been serviced before. The flash focus does not reset to automatic/default settings. I am prepared to fix it myself. Soldering if necessary. I would like some help to point me in the right direction. It could be as simple as a fuse, or a replacement IC board, or chip. Thanks in advance! Jim

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Re: Rainbow and Bowtie Effect

Go here: this solution works for many sony issues (slight voltage adjustment is all it takes)

Posted on Sep 19, 2007

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I have the bowtie effect on my picture that cannot be fixed in the advanced menu. For awhile it had gone in and out but now it remains. Sometimes there appears to be angled lines that flash on and off too....

This is a common problem with these sets and is usually the convergence IC chips. The soldering joints on them become loose over time as they heat and cool and eventually lose connection. This usually just requires the chips to be re soldered. If it is not fixed promptly, the IC chips then go bad. If you can give your TV a good WHACK! and the problem either goes away or comes back, the chips are probably just loose. A shop will charge about 250-300$ for this repair, or you can order a kit and do it yourself for about $100.
This is a link to a kit for your TV.

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1 Answer

Cannot adjust horizontal blue convergence on WS 55857

You still have bad grounds on the ICs. Or maybe the solder has fused another pin. If not bad grounds on the ICs you have missed them elsewhere...Really concentrate and look for these bad grounds and check your caps with a cap check. And power resistors too!!!!!

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1 Answer

Colors not lining up and bowed... pic included

you need to install the convergence repair kit. You can get the repair kit for your model at the following link and they provide step by step instructions with pictures so you can do the repair.

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Mitsubishi fix.....
replace DM

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The DM board is the one with the digital connectors on the back panel. If you already have it appart, you may as well check the caps on all of the boards. The caps that go bad are typically Jamicon brand caps in 1000 uF and 330 uF values. There are also a couple of 3300 uF caps in the PS that cause problems.

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1 Answer

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Or send to
good luck
please mark the post with a fixya

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1 Answer

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KIT10 $29.50
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