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My TV sharp was working fine with a air antena.

When I tried to connect the cable ( From a cable company) I see a spark and the tv turn off.

I check the tv. It was a diode bridge damage.

I replace . the to turn on fine. but a have like 70 vdc from tv ground to cable ground.

I apreciate your help.


Regards.

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My guess would be a dc blocker problem.
there should be a cap to block that voltage from the cable hookup.
If you hook the cable up it will damage the tv with that 70 vdc reading there.

Posted on Mar 12, 2009

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