Question about Philips Magnavox 27MS343S 27" TV

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Sony TV Problem model # KV-27V42

I have a sony 27" tv no pic or sound when turning set on I hear power relay click 4 or 5 times set will not come on checked 4 amp fuse ok.
It appears to be in start up circuit these switching power supplies can be very hard to troubleshoot.
I thought someone may have had same problem.
Any help?

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  • Dwight Biddle Mar 15, 2008

    Thanks I checked first thing,HOT HAS DAMPER diode across E&C thought it was ok.

    Took HOT out of circuit,now have one on order, hope fly back is ok.

    Thank again




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Your tv has a  short  circuit, the power supply see that and put away the polarizatio n , you have to check  if transistor of power on flyback transformer is  good
or bad - delfo

Posted on Mar 14, 2008


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