Question about Mitsubishi VS-50605 50" Rear Projection Television

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Lightning strike i had lightning strike the tree behind my house and it blew my tv. the light stays on when you plug it in but the tv wont do nothing. So i bought a service manual and it says if the green light dont blink when you hold the device and menue button in that the microprocessor is not functioning properly. Is this true? or am I missing something? I tested all the fuses and they check out. Do i need to try something else. How much is a microprocessor and where do i get one. PLEASE HELP!!!

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This model is famous for capacitors being bad in the low voltage regulators on the signal board. Also has been known for cold solder connections in the power supply to the convergence IC. I don't have my notes at home but I belive that model only uses one IC for convergence, STK393-570. You cant see it from the back because of it being hidden by its heat sink.

Posted on Aug 09, 2008

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Hi Johnson,

Only 50% chance that the symptoms was caused by a lightning strike because your cable box was powering on fine. Most of the cases when lightning strike near to your area, possible of multiple damaged to the electronic device not only to one particular appliances, most especially if they are plugged into the outlet. Also, fuse will blew because of excessive voltage.

I've suspected that the symptoms was only a co-incidence of lightning strike. If you can hear the clicking of the relay, this is only means that the standby power supply is working fine. However, this board has multiple output voltage feeding the other boards to function well. This kind of symptoms is a power supply related problem.

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