Hi Bud,
if you have any chance to check our thread and help with troubleshooting,
any help kindly appreciated.
S77
Member
Last Activity: 11-21-2015, 04:58 PM
Joined: 11-09-2015
Location: Philadelphia
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Re: LG LED TV 47LS4500-UD black screen /Please HELP!/
Ok, measured dc voltages on ps board white connector that goes to main board. Connector was connected, tv turned on from remote, so ps board started.
Pictures with table attached.
Top/bottom line of connector (from up to down):
0.02 / 0.03
0.03 / 1.13
0.03 / 0.00
0.03 / 3.32
0.00 / 0.00
0.00 / 0.00
3.48 / 3.48
3.48 / 3.48
0.00 / -0.00-0.06 varies
0.00 / 0.05-0.19 varies
0.00 / -0.03-0.07 varies
3.37 / 0.00
If i understood... -
Re: LG LED TV 47LS4500-UD black screen /Please HELP!/
Checked boards for any damage, nothing bad.
All capacitors on PS board look good.
Please advise what to check.
Pics attached.
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=122653&stc=1&d=1447564880[/url]
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=122654&stc=1&d=1447564880[/url]
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=122655&stc=1&d=1447564880[/url]
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=122656&stc=1&d=1447564880[/url]...Leave a comment:
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LG LED TV 47LS4500-UD black screen /Please HELP!/
Hi everybody,
have LG LED TV 47LS4500-UD with black screen, no backlit at all.
Standby led is on, when turning tv on standby blinks 3 times.
Does anybody know what this code for?
Please advise what can i check first.
Thank you! -
Re: LG 50PA5500-UA Black Screen, sound on
Guys, what should i check now? Meter vs, va with zsus or ysus connected?Leave a comment:
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Re: LG 50PA5500-UA Black Screen, sound on
Just tested vs and va without ysus and zsus boards. Read correct numbers as on board table: vs 203, va 54Last edited by S77; 11-09-2015, 07:53 PM.Leave a comment:
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Re: LG 50PA5500-UA Black Screen, sound on
So i have to check voltages on ps board or ysus board? This ysus board getting voltages from zsus board. It doesnt have any power cable from ps board to ysus directly
Please advise what exactly should i check with meter?Leave a comment:
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Re: LG 50PA5500-UA Black Screen, sound on
so i have black screen with or without Y buffer boards, tv starts but no pictureLeave a comment:
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Re: LG 50PA5500-UA Black Screen, sound on
No, just blank screen (after remove upper y-buffer)
Funny thing, that after i connect everything back and Y-SUS to power supply, no tv still starts ok, and sound worksLeave a comment:
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LG 50PA5500-UA Black Screen, sound on
Hi everybody,
have 50PA5500-UA plasma tv with black screen now.
Started from screen blinking, some times was black screen, some times was ok.
Then it stopped turning on. Standby light, press ON button, CLICK tried to turn on, another CLICK right away - turn itself off, standby on.
Unpluged Z-SUS with Y-SUS (power cable goes from PS board to Z-SUS then from Z to Y-SUS), tv turned on.
Z-SUS pluged in, Y unpluged - tv turned on.
So does it means Y-SUS or Y-buffers are bad?
Checked top Y-buffer connections, all clear.
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Re: New Members - please post your introductions here
Hi everyone, hope to get useful help and be useful in future...Leave a comment:
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