Need help diagnosing why my TV isn't working anymore

[choucroutman]

Post photo on all complete boards to tell you which cable need disconnected in order to confirm the OLED Panel defect

I posted right above

[Diah]

Test 1 disconnect the LVDS at T-CON as i marked in photo test1, the turn on the TV check it will boot up and the Audio Optic Port will lit red color... screen remain black

test2, bring back the LVDS at test 1 in place... and disconnect the black socket EVDD on t-ton as i marked at test 2 photo... also as in first test turn on the Tv and check the audio optic port.

if in both test the TV start and optic port lit red.... use test 2 , while the TV starting plug in back the black socket, the screen will turn on and you will be able to see how defect its before TV turn off again

[choucroutman]

Test 1 disconnect the LVDS at T-CON as i marked in photo test1, the turn on the TV check it will boot up and the Audio Optic Port will lit red color... screen remain black

test2, bring back the LVDS at test 1 in place... and disconnect the black socket EVDD on t-ton as i marked at test 2 photo... also as in first test turn on the Tv and check the audio optic port.

if in both test the TV start and optic port lit red.... use test 2 , while the TV starting plug in back the black socket, the screen will turn on and you will be able to see how defect its before TV turn off again

Okay, I just did test one and two, and still no red light, didnt check the screen btw the tv is on the floor, but pretty sure there is no juice going past the power board (one composant deflect)
What did it mean that both test failed?

[choucroutman]

Test 1 disconnect the LVDS at T-CON as i marked in photo test1, the turn on the TV check it will boot up and the Audio Optic Port will lit red color... screen remain black

test2, bring back the LVDS at test 1 in place... and disconnect the black socket EVDD on t-ton as i marked at test 2 photo... also as in first test turn on the Tv and check the audio optic port.

if in both test the TV start and optic port lit red.... use test 2 , while the TV starting plug in back the black socket, the screen will turn on and you will be able to see how defect its before TV turn off again

Normally, I should receive the multimeter tomorrow. What tests should I perform to check:

1. If the power supply board is faulty and cannot provide enough power?
2. If the OLED panel is also faulty, if it draws more power than expected, or if there is a short circuit?

[Diah]

Okay, I just did test one and two, and still no red light, didnt check the screen btw the tv is on the floor, but pretty sure there is no juice going past the power board (one composant deflect)
What did it mean that both test failed?

the Optic port i marked for you... inside there are Red led will lit red color with test 1 and 2, when you test 1 you should bring back the socket and do test 2

[choucroutman]

the Optic port i marked for you... inside there are Red led will lit red color with test 1 and 2, when you test 1 you should bring back the socket and do test 2

Just tried with the two methods, none of them made this thingy red light, I even half opened it with a plastic to see the interior (in case the led would be hidden under the clap) but nothing.
The only thing is when I plug the cable I hear TIC from power board, wich is pretty normal I guess, but apart from that no sign of life, and yes I respected that I need to reinsert what I did take apart from test 1.
Its seem that past the power board, nothing is powered !

[EazyBone]

That's not true yet either. Either the main board OR the power is bad. Multimeter

[choucroutman]

That's not true yet either. Either the main board OR the power is bad. Multimeter

If the power supply can't give power to tue main board how is it suppose to work? And yes you right, I need multimeter, I should receive it today !

[choucroutman]

the Optic port i marked for you... inside there are Red led will lit red color with test 1 and 2, when you test 1 you should bring back the socket and do test 2

I just received the multimeter, what test should I do with it? Thx

[EazyBone]

Find beep beep mode, you'll know you have it when you touch leads together and test the fuses. One is by the plug, it's a white cylinder. Second one is in middle of boards (unplugged only)

One probe on each side of the sides of the fuse. Or look for ohm mode and do the same thing. It should test .001 or anything under .01. of not fuse is dead and it's your power board.

Next if all good look at the legend near the connector. It tells you which pins give what voltage on the clip going to main board. Should say 12v or 20v or something.

Stick the black probe and hold it on the metal chassis (I stick it in the screw holes for the wall mount and just leave it so I have 2 free hands) and then plug in the board and test to see if you have 12 v or 20 v at the connector on the power board. Remember

Do NOT touch the left side of the board and be careful plugging in the TV or unplugging.

When testing the voltage you can stick the probe into the connector on the back and should be able to get a voltage. Don't touch 2 things together as you can short out components.

Best is to plug in the TV and Then plug it into wall, and to turn it off just unplug from wall

Report back after.