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
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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
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Re: lg ps3000
Full model #?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: lg ps3000
anyone ?Comment
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Re: lg ps3000
With Z-sus out, you should get a distorted pink picture. do you?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: lg ps3000
ok so with zsus out the tv i get same thing sound and no pictureComment
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Re: lg ps3000
Sounds like Y-sustain fault. Check Vs,Va.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: lg ps3000
ok so vs and va both fine from psuComment
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Re: lg ps3000
Check -Vy and Vsc thenPlease do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: lg ps3000
pics where can i get repair kit ?Attached FilesComment
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Re: lg ps3000
?Comment
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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.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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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 ?Comment
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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...!Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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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".)Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Hi, I’m new to the forum and this is my first post, so thank you in advance to having me, I have the fallowing problem, could someone please help
I have this LG 50PC56 which not display image on screen
I have already change Y-SUS and buffers 2 times! But this TV keep burning my buffers boards!
When I do install the new Buffers board I been able to see only the top half part of the screen for about 10 min, and then it blow up again! The IC get very hot and I saw some smoke come out from it, so now I have another set of buffers burn out
My question it is: I disconnect... -
Replaced Zsus beginning of year as most transistors were short stopping tv powering up.
Now screen flashes on off continually and ZSUS ticks. Looking like replacement maybe faulty or could something else cause it to shut down.
If I remove both tabs from ZSUS to screen but keep all other connectors to ZSUS on then TV boots properly but screen very dark without ZSUS output, no ticking from ZSUS. So it only shuts down when under load from screen.
If it is ZSUS then how to fault find, I already looked for shorts. No transistors shorted or caps and its...12-13-2017, 01:18 PM -
All Voltages are OK except ZSUS 15v.
YSUS board disconnected still 15v missing.
ZSUS was replaced: 15v missing.
Any help will be appreciated... -
Got replacement buffer boards but not sure how to remove the ribbons. unfastened tab but their not eager to come out. Any suggestions? Thank You!... -
Hi all,
I am trying to fix my plasma TV which is not powering on due to damaged IGBTs. I have changed two igbts and 2 IC drivers on the zsus and also two igbts on the ysus.
Now everytime I plugged the ZSUS and the YSUS boards to the power board, the two 30f124 IGBT on the ZSUS are damaged and the TV stays in standby mode. When I plug the ZSUS board alone the TV turns ON but I do not see pictures. When I plug the ZSUS board without the two 30f124 IGBTs and the YSUS board, the TV powers on with a picture.
I am lost, should I change the YSUS board? Is the YSUS board damaging...
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