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Last edited by budm; 05-08-2018, 01:28 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: LG 60LB5200 will not turn on
As far as I can tell, the EN signal is not used. Following the traces on the back, there is no R7, Q1, C8, or R10.
Looks like they must have made some revisions to the original circuit.Comment
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Re: LG 60LB5200 will not turn on
On the flip side, it looks like some places are beginning to stock the replacement board again. I see it for as low as $66.32 on Amazon https://www.amazon.com/s/ref=nb_sb_n...ds=COV32809701Comment
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Re: LG 60LB5200 will not turn on
Ordered the board. I will let you know as soon as it's installed. Cross your fingers.Comment
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Re: LG 60LB5200 will not turn on
I bought one a couple weeks ago (before I saw them on Amazon and other sites). Paid a bit more as well.. Now i just need to find time to install it.Comment
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Re: LG 60LB5200 will not turn on
Hey guys, yes please let us know if the power board fixes the problem. ThanksComment
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Re: LG 60LB5200 will not turn on
It worked. Thank you everyone for the help. Now, since I already replaced this TV... What do I do with an extra 60” TV???Comment
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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: LG 60LB5200 will not turn on
Anything on this?Comment
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Re: LG 60LB5200 will not turn on
Any feedback?Comment
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Hi
I am sorry to bother you but I do have a COV32809701 power supply with the same issue of low voltage on the 12v = 6.95V 24v = 15.64V and Both of the large caps are 163.2 VDC. I did replace d12 and checked other diodes and transistors with no help. it look as if tis is a common issue with the COV32809701 power supply. any suggestion.
thank you and I really appreciate your help.
JoshuaComment
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Hi
I am sorry to bother you but I do have a COV32809701 power supply with the same issue of low voltage on the 12v = 6.95V 24v = 15.64V and Both of the large caps are 163.2 VDC. I did replace d12 and checked other diodes and transistors with no help. it look as if tis is a common issue with the COV32809701 power supply. any suggestion.
thank you and I really appreciate your help.
JoshuaComment
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Re: LG 60LB5200 will not turn on
Has anyone successfully repaired the power supply to this TV yet? I just acquired this same model TV with the green standby light flickering.Comment
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Re: LG 60LB5200 will not turn on
I'm repairing this power supply right now. My parts have not yet arrived so I have no progress yet. I will update with my story when I get them.Comment
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Re: LG 60LB5200 will not turn on
No parts yet. Hopefully soon as I am also tired of waiting...lol. ..I'll report back when they arriveComment
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Re: LG 60LB5200 will not turn on
I replaced the power supply since I found one for $35. The TV is alive again!Attached FilesComment
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Re: LG 60LB5200 will not turn on
I still haven't received my parts. F@cking China... ughhhComment
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Re: LG 60LB5200 will not turn on
Yikes! I'll keep checking back here as I still want to repair my broken PSU. I got a good board to work off of but my multimeter crapped out.
Comment
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Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited... -
To all the members here...
Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.
So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But... -
Hello, I have an Acer Aspire 4520 from a couple of decades ago and I want to repair it solely for nostalgia.
It happens that when I turn it on after having been disconnected for a long time, it turns on without problems, it tells me that the BIOS has been reset and that it will load the factory settings, if I tell it to continue, the computer turns on and everything works fine.
The moment I turn it off and want to turn it back on a second time, or restart it and try to start it again, it no longer gives an image, and it no longer responds.
If I remove the... -
Hi everyone,
I am dealing with the problem of turning on and off my Dell e7470 notebook.
The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.
The system does not turn on, there is no post.
I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
The problem continues in the same way.
I tried to turn on the Fn key, nothing came to the screen.... -
i got this laptop with no power issue....i flashed the bios and laptop can turn on and use normally....but when i shut it down and rest for few minute (2-3 minutes), it wont turn on....i have to flash bios again...any idea what is the problem?...when i shutdown and suddenly press power button to turn on, it will turn on normally....problem happen when i rest the laptop 2-3 minutes after shutdown, it will not turn on....i need to flash bios again
board number VIUX1 NM-A091 REV:1.0...
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