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Help Needed - Thomson 27LCDB03B not working

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astracat:
hi
those resisters tend to go high in value ,dont think ic will fire up till about 9volts on it .should check why theres less voltage there also check caps to that supply.roughly 9volts there ic fires up then transformer takes over from then on to keep it running
regards
astracat

Acrantophis:
Replaced the electrolytic caps C6203/C6310/C6311/C6312/C6313/C6314, I had read somewhere that these can fail, I had checked them and felt that they were good but given that we are talking pennies I figured it was cheap enough to replace them. No joy, still only just over 8V on VCC (pin 7 U6301).
Double checked the resistors R6301/R6303/R6304 by removing them from the circuit, happy to report that these all verify as OK and within their specified tolerences.
This repair is still a work in progress I had limited time available today and no time tomorrow so any updates will be posted on Friday assuming you are able to help me further.
 :c017:

astracat:
hiya
think prob further back on pfc board check r6201a,b,c,d,fuse on end of d6201also r6212
g/luck
astracat

Acrantophis:
TR6201 is a Metal Oxide Varistor, it could be faulty I suppose but I'm not sure as I'm able to measure a voltage after it within the circuit. A quick google search has failed to throw up any specs on the device in question though so if I was to replace it I am not sure what I would need, any ideas?
SCK-056L

Thanks again.

astracat:
ok check to make sure u7401 has power as that circuit supply 12v then inturn from u6401 for 5v  both on audio psu board check caps on there as well.
astracat
ps assume you checked tact switch on tv?

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