This happened out of no where. Wondering if it's a panel issue? Before I dive in and take it apart
Attached Files
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Re: Mitsubishi LT-52148 LCD - white picture with lines
Hmm possibly mainboard fault here. Take it apart and get some images
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Re: Mitsubishi LT-52148 LCD - white picture with lines
Do you have IR control and sound?Willing to help but I'm no expert.Comment
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Re: Mitsubishi LT-52148 LCD - white picture with lines
It does have sound, no remote for it to tellComment
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Re: Mitsubishi LT-52148 LCD - white picture with lines
check the LVDS with an oscilloscope and turn the menu on and off all the time. If you see changes on your scope, it's not the main board.Comment
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Re: Mitsubishi LT-52148 LCD - white picture with lines
Don't have an oscilloscope but it only shows a distorted picture with an input. The menu displays crystal clear even volume, input source etc. Would that mean it's a tcon issue or?Attached FilesComment
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Re: Mitsubishi LT-52148 LCD - white picture with lines
Ok this has a "system reset" button so I tried pressing it to see what would happen and now it's displaying a picture normal.
What's up with that? It does have some random lines going down as shown in that pic. Not sure if that indicates a panel fault?Comment
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This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
This "free from a friend who was going to recycle it" SONY BRAVIA XBR-55A8H arrived with the bottom center RED LED repeating a four flash pattern. It was treated with kid gloves and was reported to have "just gone dead" and the OLED panel has no dents in the metal frame or cracks.
Thread https://www.badcaps.net/forum/showthread.php?p=1091829 helped in proceeding as follows:
1) Unplugged, then plugged set in while holding the remote VOL- and Power to factory reset.
2) Waited 30 seconds, then pressed remote Power button and "Select language"...01-30-2023, 05:01 PM -
5.5 year old 85 inch Sony Bravia X950G started showing gray horizontal lines across the bottom of the screen and the picture shifts slightly vertically when it happens. The lines sometimes get bigger/smaller vertically and bounce back. See the video for the problem. It seems to be happening after it warms up after an hour or so. Happens regardless of source. Right now there's nothing but power cable connected and it's happening. We did hook up a new Nintendo Switch to our HDMI switching receiver today, and played for a while with no issues, but this problem didn't occur til a few hours later while...
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I'm not sure what to do next and came here since y'all helped me fix a 50" plasma TV back in 2014, which is still working!
A friend gave me an Insignia NS-50DR620NA18 50" TV that suddenly developed large vertical lines on it. He said he had no idea what might have caused it and has replaced it with a larger TV. He was going to throw it away.
I did not notice any bulged or leaking caps on any board, the voltages produced by the power supply match the voltage that the pins are marked. The backlight leds are working. I have tried cleaning the ribbon cables... -
Wondering if anyone has addressed an issue with the SHARP 70” LC-70UD27U having thin black and white lines running from left to right horizontally on the screen. I snagged this TV set from a neighbor since I have been successful in repairing numerous other TVs. I assume this probably happens to other TV sets and may have been addressed in another thread. If so please point me in the right direction.
What I have tried so far.
I have tested all HDMI inputs with the same results.
I have checked for firmware updates.
I have reset to factory settings.
I have removed...
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