Schematics for PSPU-J704A for an LG tv?

[MarkZ]

Hi.

I have a LG 42PG6000-ZA.  (Manufactured 2008)

Sometimes it starts full up but lately it gets stuck more than not in blink mode (red/green on power on) and increasingly so.
It does so even when it hasn't been on for a day.
When it actually starts it works fine for hours (til I turn it off).

I exchanged 4 pieces of 3.3mF capacitors that was bulging on the PSU board, but no change.

Anyone has a manual for that model or an idea where to look next?

Thanks, Mark

Edit:
Changed the headline.

[MarkZ]

More info:

I replaced the capacitors with red circles because they were bulging.

Now I noticed that the component in the corner (blue circle) looks like it have been warm.
It says VA101. What is it and how can I tell if its broken?

[MarkZ]

Is there an easy way of telling if it's the PSPU-J704A (PSU) that is broken?

[t1412]

hi, mark look like a varistor, you can heat them up and test with a mulitmeter, look on youtube


regards
shaun

[MarkZ]

Thanks for your answer.

Now I'm looking for a schematic for the PSU so I know what specs the component have, to exchange it.

Any ideas where I might find one?

Br, Mark

[t1412]

try, rs components or wiltsgrove good luck

shaun

[tv tony]

you will be very lucky to get a service diagram for the psu, ysus and zsus boards are never shown, it may be cap problems, you are going to be better off getting an esr meter to check them, they dont always bulge when they are defective. good luck
tony walker