Any help would be appreciated. I'm not sure if i have t-con, main board, or panel issue?
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Re: Lg 65UH655O BARS ON THE SCREEN
More likely to be panel.
You need to open up the back and see if the T-CON, tab bonding boards are on the bottom edge of the LCD panel or not.
Did anyone spray the screen with cleaner to clean the screen?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 65UH655O BARS ON THE SCREEN
1st pic is with cable 1 left side unplugged from t-con, and pic 2 is right sideAttached FilesComment
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Re: Lg 65UH655O BARS ON THE SCREEN
So can we see the backside of the TV?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 65UH655O BARS ON THE SCREEN
Here ya goAttached FilesComment
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Re: Lg 65UH655O BARS ON THE SCREEN
Just the home screen that was shown in the original picture. That is kinda what lead me to believe it wasn't a panel issue. Thoughts?Comment
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Re: Lg 65UH655O BARS ON THE SCREEN
So do you get picture just like in post #1 when both cables are back in place?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 65UH655O BARS ON THE SCREEN
YesComment
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Re: Lg 65UH655O BARS ON THE SCREEN
I had the same exact defect on a little older LG, it's a common issue on LG panels, the problem is on the source driver cof that began to slightly desolder, i have fixed it for some minutes but i had too much hurry to remount the bezel, the story is long, i ended cracking the cof due to shim mal positioned, its not easy when there is not a confortable plane of work. I think a better technique than mine can be used to fix it much faster and better with the use of a simple soldering iron stylus.
not on the LG..the other side should have shown a picture.
NOTE: A COF is a chip! not the band that holds it.Last edited by Davi.p; 08-08-2020, 05:20 AM.Comment
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Re: Lg 65UH655O BARS ON THE SCREEN
download the zip from this post and extract the test photos on USB formatted FAT32, then play them on yours TV show us the result..as:
!- BOTH ribbon connected
2- both side with one ribbon in placeLast edited by Diah; 08-08-2020, 10:06 AM.Comment
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Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side... -
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match... -
Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!
My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.
This time the original cable broke too close to the screen, it can't be fixed without tearing the screen... -
Hi All,
Need help.
I have a samsung un60j620dafxza led tv. When I plug it in it has no display, no sounds, and no standby lights.
So I opened the tv and disconnected the power to the mainboard and the backlight powered up. This according to many people says that this is a mainboard
problem. I checked the voltage coming from the stb and I read 1.3 volts on pins 1,3,5 and 7 which are low volts instead of 13 volts which i think the lcd panel
might be drawing too much power from the power supply that it prevents the right voltage going to the mainboard.... -
Hi,
i have a 65 Panasonic TX-65HX710E using vestel 17MB170 main and Lg tcon.
Few drops of water fell probably near COF and have no display. Tried removing tabs but no.part of display present as if tcon fuse open. However 12v is present and tcon can be felt warm enough that supplies are present. Backlight and sound ok.
Anyone knows if this TCon 6870c-0805A has any special test pins for rgb test?
Appreciate your help....
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