Question about Sony KP-51WS500 51" Rear Projection Television

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Sony KP-51WS500 Blinks/Flashes 6 Times

I have a Sony rear projection TV and the power light blinks 6 times. I read the repair/schematic manual and it says that it is a Low B OCP/OVP problem and the cause is ? +5 line is overloaded. (A, B Boards) ? +5 line is shorted. (A, B Boards) Well now that i know that is the problem how do i fix it!!! Do the A/B boards need to be replaced or should i try lower the color voltage settings on the TV?? I am totally clueless as to what to do and I cannot afford $600 to fix this tv! Someone please help!!!

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  • Robert Tinner Jul 25, 2007

    I replaced the A board and still no go.. The 'B' board looks like its brand new, no scorch marks, broken solder, popped caps nothing. If anyone has any clue what it would be please let me know, this is getting really expensive.

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Nspect the bottom of these boards for cold solder joints with a magnifier & resolder suspect pins, also check the capacitors on the board, if they are little silver smd type look for yellowish liquid to be present around one or several of them, you need to replace, either of the above could be your solution.

Posted on Jul 22, 2007

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Most of the time it's overvoltage problems...

The KEY to knowing which one is actually occurring is the amount of time it takes before the 6 blinks occur...

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A dead HV circuit could be anything in the HV circuit, from the Regulator IC to the HV splitter...
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http://servicemanuals.vstore.ca/

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