lg 55lw5600 with horizontal lines and sound...bad panel?
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Re: LG 55LW5600 Horizontal lines, bad panel?
These are know to have the main BGA chip fracture the solders and can cause all sorts of weird faults like lines, loss of inputs like HDMI etc.
Could try heating that chip up and see what happens. -
Re: LG 55LW5600 Horizontal lines, bad panel?
Thanks, I will give that a try.Comment
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Re: LG 55LW5600 Horizontal lines, bad panel?
HI, it seems a lost of Horizontal clock, it's much probably a panel fault unfortunately, can you make a photo of a good monitor and the broken tv showing the same image from PC vga? (one at a time).. you can dismantle the screen, putting apart the plastic and metal bezel, then put pressure on the outer screen flats R and L side (those glued on glass) and seeing if image restores. BYE.Comment
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Re: LG 55LW5600 Horizontal lines, bad panel?
Thanks everyone, tw2005 nailed it...I heated the main BGA chip and it cleared up the horizontal lines and restored the video.Comment
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All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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Hello Community,
I'm working on a Samsung UE70TU7020K.
It looks like a bad panel. There is only 1 FPC cable from the Tcon (built into mainboard) to the panel.
I'm using a piece of tap a few mils (covers about 8-10 pins), at different locations and have had varying results but nothing that is remotely watchable (multiple lines across all the screen, half screen and total black out on screen). The buffer board is divided into 3 boards. I've disconnected the end board one at a time but each time the screen was totally black. I presume it's because the potential...03-15-2024, 03:01 PM -
I just acquired this 3D LED yesterday and it has horizontal lines on a little more than half of the screen. When I first turn it on it has thin black lines going across that makes the image look serrated, and then shortly after patterns of thicker red lines fade in. If I turn it off and right back on it will reset to just the black lines and the red will again fade onto the screen.
I initially thought tab bonds, but flexing the bezel makes no difference, and the fact the image sort of resets after cycling power is different. I haven't opened it up yet to actually test applying... -
Hello community. I've got an ASUS VA27EHE with a Panda LC270lf1l01 panel that started to behave strangely. A bit of intro:
If you power on the monitor without any inputs it turns on, displays the ASUS logo, shows no signal and goes into standby normally. When you plug it via HDMI sometimes and more recently, most of the times, it distorts the bios logo with horizontal lines, then when loading into windows 50-50 the windows emblem also is in horizontal lines. And after the system loads it almost always works properly, lol. On some rare occasions a part in the top of the monitor is being distorted...03-26-2025, 03:42 AM -
Hello all, I was recently repairing my Samsung 55" UN55JS9000 tv from the common burnt backlight LED's and cracked light guide panel issue. After replacing the LED's and putting the TV back together, I tested the tv and all I was getting was sound but no image. Somewhere along the way (could be related to the next issue) the T-Con board became damaged and after replacing it I have made a little bit of progress but now have bright pink vertical lines and still no image.
The bigger issue .... I took the TV apart again and realized that I likely didn't sit the LCD panel correctly...
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