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Posted on Jan 02, 2017
The problem was detected as a case of unregulated Power Supply Output. A sort of Crowbar is set in operation if the Power Out is above tolerable limits, which cuts off the supply to the Horizontal and etc. IC TDA 8362. The diagnosis was a faulty PWM IC 3842.
Posted on Feb 02, 2009
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your problem is that your output is less than normal
first you isolate h/output from power supply if it comes to normal(115V).
then problem in h/output stage
for that you check
h/output,cap & diode in flyback section & flyback transformer.
but power output is still 50v then problem in power supply for that check oscillator ckt & switching output.
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