Jvc Lt-65VU3000 reduce backlight from service menu
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Channel: Schematics and Boardviews
10-31-2024, 03:58 AM -
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by Robby-GrHi 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:...11 Photos -
by tusiimeThe current main board on my Vizio m652i-b2 only has 1 of 4 HDMI ports working. Also, the coaxial port is not working.
So I ordered a replacement board. It boots up the tv, but the display is dark in areas, colors are off, etc. I have seen information online that a setting in the service menu may need to be adjusted. Have tried many ways to access the service menu using remote codes, but none work.
Can someone here provide the confirmed method for accessing the service menu on this tv? Thanks in advance! -
by intercepterHi,
I have JVC LT-32CA120
Board:Vestel 17MB171
I need rotate screen.It is possible in service menu and how to enter service menu?
Thanks. -
by triplefourthis tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even... - Loading...
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