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Equipment Repairs => LCD TV forum => Topic started by: WILLYAM1 on August 08, 2011,07:47:20

Title: LG37LG34R-TC
Post by: WILLYAM1 on August 08, 2011,07:47:20

Hi to all.
in the first operation tv turn on everything is ok.
by put it to stby red led is on. 5v stby is flat and ok.
by start again led is off and no pic no back light all the volltage from p.s are not steady and they up and down.
stby 5v is allways ok .i notice that  the pin p.on is not steady and hisalsoo up and down .
i checked all capi no bull g and with esr meter are all ok.
 not sure if problem is in p.s or main board.
anyone has service manual to this model or has a cure to this problem.
p.sEAY4040500.
THANKS WILLYAM1

Title: Re: LG37LG34R-TC
Post by: WILLYAM1 on September 04, 2011,14:11:55

still waiting .
were all expert to lcd lg??.
most likly the p.s is the problem.
love to repiar in component level.
any schematic to the p.s???.
willyam1

Title: Re: LG37LG34R-TC
Post by: tv tony on September 06, 2011,07:54:15

we are lg dealers, not experts by any means, but any lg competent dealer will tell you there is only a handful of psu circuits available. good luck!

Title: Re: LG37LG34R-TC
Post by: WILLYAM1 on September 07, 2011,01:10:30

thanks tony.
willyam1