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View Poll Results: Should I cap it or trash it.
Cap it 4 100.00%
Trash it 0 0%
Voters: 4. You may not vote on this poll

 
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Old 08-26-2015, 05:54 PM   #1
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Default 24in LG mo PSU/board. Bad caps or Bad board

The basic caps are all bad but I think the inverter transformer might be bad as well. There is a black burn spot on the other side of the transformer. Though I do know sometimes burn marks can arise just from being hot but ...

So my question is this. Do you think I could get away with just replacing the capacitors or do you think it would be best just to replace the full board. I found one on ebay for 31$ but its in hong kong and it'll be a couple/few weeks before it gets here.
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Old 08-27-2015, 01:06 AM   #2
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Why trash it, its a fairly simple repair ??? the transformer should be fine if you have a DMM you can test it to be 100% sure but its always worth a try.
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Old 08-27-2015, 07:40 PM   #3
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

....and the evilbay one from China will have the same crap caps on it you have on the one in this thread. Recap it, quality caps are 1/2 the price of the evilbay board.
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Old 08-29-2015, 01:47 PM   #4
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Thanks guys, I just wasn't sure if getting a new matching transformer was going to be a option or not. I'll post here the results once I re cap it.
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Old 09-09-2015, 09:02 PM   #5
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Ok so i recapped the power board and it now comes on.... But now its extremely fuzzy with pixilated lines. Ive tested it on two systems and two power cords with same result. Any thoughts on what else i could do? Also i did update driver and used diagnostic software with no help.
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Old 09-09-2015, 09:25 PM   #6
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

The picture doesn't look any fuzzier than the bezel in that photo. Are you sure that the resolution is set correctly?

FYI, It's poor practice to use your email address as your username. It's a great way to attract spam.
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Old 09-09-2015, 09:29 PM   #7
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Did you try reseating the LVDS cable to the LCD panel?
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Old 09-10-2015, 01:13 AM   #8
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

[[email protected];584981]The basic caps are all bad but I think the inverter transformer might be bad as well. There is a black burn spot on the other side of the transformer. Though I do know sometimes burn marks can arise just from being hot but ...

So my question is this. Do you think I could get away with just replacing the capacitors or do you think it would be best just to replace the full board. I found one on ebay for 31$ but its in hong kong and it'll be a couple/few weeks before it gets here.

sorry for the late response i was looking at your pictures and when i saw the suscon caps i was like i had to recap my psu in an old emac just because of suscrap (why do companies still use crap caps) i switched all to panasonic FR low-esr series.
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Old 09-10-2015, 01:13 AM   #9
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Quote:
Originally Posted by budm View Post
Did you try reseating the LVDS cable to the LCD panel?
i have to ask when recapping one of the boards should you use low ESR caps or general purpose caps also work?
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Old 09-10-2015, 01:42 AM   #10
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

low esr.
panasonic fm,fr.
rubycon zl
nichicon hd,ect
Quote:
Originally Posted by coreAngel View Post
i have to ask when recapping one of the boards should you use low ESR caps or general purpose caps also work?
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Old 09-11-2015, 10:29 AM   #11
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

we
Quote:
Originally Posted by c_hegge View Post
The picture doesn't look any fuzzier than the bezel in that photo. Are you sure that the resolution is set correctly
I did all the necessary steps before coming here: Checked cables, used different cables, checked software(video card settings), onboard monitor diagnostics, software diagnostics. Then i switched the monitor to a different computer and the fuzzyness still persisted. The lines you see on that picture aren't suppuse to be there.

Last edited by [email protected]; 09-11-2015 at 10:33 AM..
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Old 09-11-2015, 10:32 AM   #12
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

Quote:
Originally Posted by c_hegge View Post
FYI, It's poor practice to use your email address as your username. It's a great way to attract spam.
Well FYI, I was unable to locate the option to change it and more than likely my auto fill created it so the damage is done. Also I've never had a problem with spam because that is what filters are for. Besides there are a lot more efficient ways to acquire someones email address

Last edited by [email protected]; 09-11-2015 at 10:43 AM..
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Old 02-08-2016, 10:32 PM   #13
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Default Re: 24in LG mo PSU/board. Bad caps or Bad board

I have problem my on Sony TV KDL-47W802

from 1 year my picture quality is very and poor video noisy with color not quality as well contrast low, I see HD content like SD , on all source bluray or hd setellite channels or even sample picture on tv not quality
are you advise me to replace my main board

Thanks
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