Forum > PLASMA TV forum
LG 50PC55 PSU Schematic or advice please
(1/1)
jestah:
Hi,
I've been suffering with a LG 50PC55, it came in with the standard bulging caps, as per the available repair kit (6x 3300uf 10v + 680uf 50v) - I did those, but no joy
its board numbers are: 2300KEG006A-F EAX32412301/6 YPSU-017A EAY32957901
I get the just over 5v across the replaced caps, but nothing at 5vsb pins
I can see that the supply for the 5Vsb reaches U233, but it's not being switched on
I'm suspecting either U701 controller or signals to it, but without a schematic it's a tad tricky!
If anyone has suffered similar or has a schematic, I'd be most grateful for any offerings
Cheers,
Si
fix2003:
check transistor Q953 (2sc3198) is not s/c
had a set with this gone also
jestah:
Thanks for the reply, I've just checked that, it's good and healthy...
Any other ideas?
Many thanks
Navigation
[0] Message Index
Go to full version