Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Brian Friedl
 
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Default Mitsubishi VS6015R V10? chassis Turns off immediately

I have an old Mits PTV that is sick and hoping the doctors here have a
prescription for me! When I turn the set on, the main relay on the
power supply board engages for about half a second before turning off
again. I have tested the power supply with dummy load attached and
everything is fine. When I short the contacts next to the relay, set
comes on and I get a raster, but no image. I am happy to see full H
and V deflection on the screen, however all I get are green and blue
(convergence is off) lines. The lines slope slightly downward from
left to right and are spaced about 3 inches apart.
Any ideas? Im guessing there is a protection circuit that is trying to
shut it down. I have full schematics and service manual for this unit.
Recently replaced IC8000 on convergence board(static focus) which was
shorted.
I think thats everything. Let me know if you need more info.
Brian
email at bfriedl d0t C0M
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