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BBH
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 Posted: Tue Jul 25, 2006 6:28 am Post subject: Schneider stv3680 |
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Hey,
The signal too the base of q404 (2sd1554) is ok.
I have done a lamptest and checked the voltage on collector of q404. It was ok, 112Vdc.
But when I mount the q404 and turn on the set, I messure 450Vpp! on collector, instead of the 199Vpp wich is the correct voltage.
The set works fine with a normal picture for about 10min. After that tv goes into standby. And the Q404 is defecktive. After replacing Q404 it works for another 10min.
Anyone with some tips? |
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