Think I'm jinxed - since I joined this forum another TV of mine has gone kaputt!
It's a Seiki - no backlight. Screen is on and works (can see when shining a torch on it).
Have had the Tv apart and not sure I understand the voltages I'm getting - when tv in standby getting 35 volts DC on the 2 connectors that go to the back light which doesn't make sense to me. When TV switched on it goes up to between 48 and 58 volts.
All caps and other components look normal, all diodes seem to check out, not tested the caps 'cos I think I have to take them off the pcb to test (is that right?)
What I don't understand is why both backlights would fail at the same time (as there's 2 connectors) - I guess they are wired in series which explains the high voltages but for both sets to go at the same time seems strange.
Can take the whole thing apart and get to the led strips if necessary but wanted confirmation that it's highly likely to be the strips that are at fault first.
Is there a resistance test I can do on the connectors to test this?
TIA.
It's a Seiki - no backlight. Screen is on and works (can see when shining a torch on it).
Have had the Tv apart and not sure I understand the voltages I'm getting - when tv in standby getting 35 volts DC on the 2 connectors that go to the back light which doesn't make sense to me. When TV switched on it goes up to between 48 and 58 volts.
All caps and other components look normal, all diodes seem to check out, not tested the caps 'cos I think I have to take them off the pcb to test (is that right?)
What I don't understand is why both backlights would fail at the same time (as there's 2 connectors) - I guess they are wired in series which explains the high voltages but for both sets to go at the same time seems strange.
Can take the whole thing apart and get to the led strips if necessary but wanted confirmation that it's highly likely to be the strips that are at fault first.
Is there a resistance test I can do on the connectors to test this?
TIA.
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