lg ps3000

[tonyuk]

hi guys ive got this lg thats my own tv now 4 weeks ago i sent ysus zsus and buffers to a guy for test and repair now today i was watching tv when screen went black but still has sound so not happy is this the zsus gone again ? ive tried with one buffer in at a time and still the same fault

[tom66]

Re: lg ps3000

Full model #?

[tonyuk]

Re: lg ps3000

Full model #?

lg 50ps3000 any idear i still think faulty zsus

[tonyuk]

Re: lg ps3000

anyone ?

[tom66]

Re: lg ps3000

With Z-sus out, you should get a distorted pink picture. do you?

[tonyuk]

Re: lg ps3000

With Z-sus out, you should get a distorted pink picture. do you?

do i take zsus board out of tv

[tonyuk]

Re: lg ps3000

ok so with zsus out the tv i get same thing sound and no picture

[tom66]

Re: lg ps3000

Sounds like Y-sustain fault. Check Vs,Va.

[tonyuk]

Re: lg ps3000

Sounds like Y-sustain fault. Check Vs,Va.

i checked vs was fine dont know how to check va

[tonyuk]

Re: lg ps3000

ok so vs and va both fine from psu

[tom66]

Re: lg ps3000

Check -Vy and Vsc then

[tonyuk]

Re: lg ps3000

Check -Vy and Vsc then

vsc jumps from 2volt upto about 36v
vy jumps all over from 2v upto 36v and thats with meter set on 600v

[tonyuk]

Re: lg ps3000

pics where can i get repair kit ?

[tonyuk]

Re: lg ps3000

?

[tom66]

Re: lg ps3000

Patience, m'lad. I was down by the pub with no internet.

Anyway, now try unplugging buffer boards to see if the voltages come back. If they do, try with only one buffer at a time. You only need to unplug the connections from the Y-sus, the orange ribbons may stay.

[tonyuk]

Re: lg ps3000

Patience, m'lad. I was down by the pub with no internet.

Anyway, now try unplugging buffer boards to see if the voltages come back. If they do, try with only one buffer at a time. You only need to unplug the connections from the Y-sus, the orange ribbons may stay.

lol did you get me a beer ? ok will do that now

[tonyuk]

Re: lg ps3000

ok so with top buffer unpluged i get norm reading i did try with bottom buffer out but didnt sound nice to turned tv off ?

[tom66]

Re: lg ps3000

Huh?
Sounds like bad top buffer. You may get a glow on screen or half picture with only bottom in place.
Buffer boards are LG's biggest weakness...!

[tonyuk]

Re: lg ps3000

Huh?
Sounds like bad top buffer. You may get a glow on screen or half picture with only bottom in place.
Buffer boards are LG's biggest weakness...!

yer i got white line with just bottom buffer in now i had sent all these off buffers ysus zsus and guy said he fitted new top buffer and repair to ysus
hes now saying my screen has blown the buffer ?

[tom66]

Re: lg ps3000

As far as I know, that doesn't happen with these TVs, the buffer board was probably dodgy.
(Unless panel is cracked or the ribbons on edge of panel are wearing into frame, or if the TV is an early 2007 generation Panasonic FHD 42".)