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Crumbtrail TV Forums: TV Equipment: LCD TV Forum:
samsung backlight issue

 

 


zr21999
New User

Mar 27, 2017, 7:29 PM

Post #1 of 2 (615 views)
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samsung backlight issue Can't Post

my lnt4042 has a weird backlight issue. it turns on but no screen so ive replaced the main board, inverter, and power board...still nothing so i was fiddling around and i happen to disconnect one of the wires to the main board to the power board and plug it back in and the screen light up. everything works fine i can turn it off and on no problem until i leave it off for more than 10 min im back to having to unplug that wire and plug it back in. could this be a cap problem. ive tried 2 power boards and swapped inverter boards also. im at a loss



Serg
New User

Jul 9, 2017, 10:45 PM

Post #2 of 2 (389 views)
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Re: [zr21999] samsung backlight issue [In reply to] Can't Post

 
What is the supply voltage of the inverter? Does the 5v command turn on the inverter?

 
 
 


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