given this set free.......power supply,tested ok, reaching mainboard, but got no power to tcon..........showing blanc blue screen, no audio or menu. is this a sign of faulty mainboard........thanx......
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Last edited by digby1951; 08-04-2018, 01:00 PM. -
Re: lg32lc46
For us to help we will need good clear pictures of the whole backside of the TV showing all the boards, and the straight shot pictures of the whole top and bottom side of the power supply board so we can read the printed texts on the board.
It is hard to do long distant troubleshooting without seeing what we are dealing with.
What is the history of the TV? Any works were done to the TV before?
The more details we get the better chance of finding the cause of the problem.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
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Veste/ LED TV Service Menu Code...10-31-2024, 03:58 AM -
Hello
I received from a friend from Norway a faulty TCL U55C7006 TV
TV had a white power led on when powered on, later the LED went off, but no picture.
Initially i thought that it has a bad backlight. I tested the led strips with a tester but they proved good. I also checked the screen with a powerful flashlight, but no sign of any signal on screen.
I made some research and i discovered that the TV is an Android TV and the fault i have is often connected to a firmware problem.
I downloaded some firmware images and made some trials.
I tried with 3 different... -
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I tried to reinstall the firmware through the menu which was rejected saying it already had the latest version.
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So let me start with the problem description. I'll try my best not to skip anything so this might get rather long.
...
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