"Prosonman" wrote in message
...
Hi,

I have a Sony KV-M2531U that has a collapsed frame - single line across
middle of screen.

The vertical delflection circuit is based around a TDA8170 that has been
replaced but it still will not work. Supply voltages seem OK and
components
around it read OK. I once had ciruit diagrams but have now lost them so if
anyone has a circuit for the vertical deflection section it would be much
aprreciated or if any ideas what the problem maybe.

What restistance should the vertial coil read, I get a reading of
8.2Ohms.?


Many thanks
Richard




Thanks for info, tried suggested problems but still no luck. However I have
discovered a broken track that may have caused TDA8170 to fail ( Pin 6 and 7
short circuit on IC). Will try another new TDA8170 tomorrow when it arrives.

Thanks again.
Richard