So I received this TV to repair for a friend. Initial symptom the TV would flash backlight then off. Since I've seen this many times, tested the Backlight, and sure enough, 1/4 of the edge lit strip was out.
Replaced with a good one (can't find new, bought used, but checks out with the LED tester), buttoned up.. when I power it up, I get the pinkish screen, showing TCL Logo, 4K ... stays on for 10 seconds, then back light off, then the same screen comes on for few seconds, then backlight totally off. Image is visible with a flashlight.
Seems to respond to remote keys (you can hear sound from the TV when you click buttons.) I see the picture with a flash light. I updated software using the flashlight. Pain!
connection between main board and PS board is not labeled. So I'm not sure what these signals are.
I'm nervous when I fix one problem to find another- what are the chances? Appreciate the help.
Replaced with a good one (can't find new, bought used, but checks out with the LED tester), buttoned up.. when I power it up, I get the pinkish screen, showing TCL Logo, 4K ... stays on for 10 seconds, then back light off, then the same screen comes on for few seconds, then backlight totally off. Image is visible with a flashlight.
Seems to respond to remote keys (you can hear sound from the TV when you click buttons.) I see the picture with a flash light. I updated software using the flashlight. Pain!
connection between main board and PS board is not labeled. So I'm not sure what these signals are.
I'm nervous when I fix one problem to find another- what are the chances? Appreciate the help.
Comment