Is this for screen imidge burn repair? (imidge cleaner on menu) I use this full white for setting v and waveforms per the set up manual. Thanks,
Cadiman
Cadiman
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ALL LCD LED TV SERVICE MENU CODES
Service Menu Code with Board Name
China Universal Board / Jumper Board Service Menu Code
Changhong Ruba Service Menu Code
Ecostar LED TV Service Menu Code
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Videocon LED TV Service Menu Code
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Veste/ LED TV Service Menu Code...10-31-2024, 03:58 AM -
Greetings everyone,
I have a HANNSG Hi221 monitor that exhibits two seconds to black issues (backlight goes off, display is still on as confirmed by shining a flashlight on it) with some additional oddities...
The monitor failed on me with a standard "2 seconds to black" some time ago prompting me to initially replace most of the electrolytic capacitors (some of them were bulging/leaking).
Things kinda sorta worked for a night, then the problem returned along with some flickering and "buzzing" noises.
Upon closer inspection... -
Eventually discovered a burn mark near lower corner of LCD. Here is a summary- Backlight on, no image
- Disconnect right buffer board (view from front), left side display comes on
- Masked off pin 7+8 (both ~12,5v on both left and right buffer board) from t-con to right buffer board (view from front) display works but have some lines
- Buffer board is pretty simple
07-11-2025, 04:04 PM -
Hi all,
I’m trying to recover a Samsung UE55HU8500L (curved UHD, 4K model from 2014) after replacing the panel. The new panel is a 55A1UU8EH, which produces excellent image quality — very close to the original.
However, since the swap, the TV enters a boot loop (Samsung logo → restart) unless I enter the service menu and perform a reset.
The service mode had been previously modified — possibly by a technician or during the panel swap — and I suspect some key settings are mismatched for the European (Greece) market.
Additional issues:... -
Hello,
So I was referred here when I made this poste over on AVForums: https://www.avsforum.com/threads/loc...lg-tv.3257234/
To summarize, this is a commercial TV and I can't get a menu of any kind. I know the overlay is working because when I change channel, adjust volume, turn on sleep timer I do see text. But I have not ever seen the user menu nor the installers menu. I've tried a bunch of remotes(more info on the AVF post) and tried every button...
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