Hi I have a strange one here.
No backlights at all.
Tested backlights, all good, 28v drawn per strip, stable and no lights out.
Tested backlights whole circuit, 145V drawn all lights on.
Fitted good known power supply, no backlights but tv working.
Fitted original power supply in good known tv, works fine including backlights.
Power supply is 17IPS20
plugged good known backlights in to faulty TV - dont light up.
So, it appears im left with main board working, but not issuing signal to psu to turn on backlights? With my backlight tester plugged int panel lights are on and see menus on tv.
Is it possible for main board not to issue signal to switch lights on?
No backlights at all.
Tested backlights, all good, 28v drawn per strip, stable and no lights out.
Tested backlights whole circuit, 145V drawn all lights on.
Fitted good known power supply, no backlights but tv working.
Fitted original power supply in good known tv, works fine including backlights.
Power supply is 17IPS20
plugged good known backlights in to faulty TV - dont light up.
So, it appears im left with main board working, but not issuing signal to psu to turn on backlights? With my backlight tester plugged int panel lights are on and see menus on tv.
Is it possible for main board not to issue signal to switch lights on?
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