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I have MITSUBISHI vs60707 with no picture but has sound i replaced Qa500 because it was shorted on leads also replaced q533 because it was completely blown apart also a couple of resistors next to it and a couple of caps now i get a picture but it has an hourglass effect from top to bottom it seems as though something in the horizontal circuit isnt working Qa502 checks good but could be bad. could this cause this problem or could it be the flyback.I get an error code 12 when i do the self diagnostic on the set

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Hi, That is quite difficult to understand without testing.
First you need to perform a coarse adjustment procedure. A Distorsion at the top and bottom of the raster may significate that you need to do geometry adjustment.
You can follow procedure on service manual.

If you performed the adjustment and the problem persists, then he hourglass top and bottom is effectively horizontal deflection problem.
Test the HV out transistor, that should be Q5A02 (was this you where talking about?), effectively if you do not find anything else that would be worth replacing as a last resource.
The fyback and deflection yoke can be part of the problem test them thoroughly.

Do the adjustment procedure first, following the service manual
I assume that you have the complete service manual, I uploaded a copy here, just in case.

Regards



Posted on May 29, 2009

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