That is the LVDS cable, the switched 12VDC is generated form this main board.
There are two white fuses on the main board by the connector from the power supply board, should have 5VTSBY on one fuse and switched 12V on the other fuse.
You should also have 12v at that small jumper wire (L57) with two small black beads on it near the bottom end of the LVDS connector.
OK, I do not know what happen to you main board, it is not sending switched 12V.
Anything got shorted out when you had the shield removed the first time?
Disconnected the LVDS cable from the main board and see if you will get the 12VDC at the jumper.
As I sat and ate dinner I got to thinking about the 12v. And decided to measure if there is 12v at the other end.
The fuse is shorted. No 12v coming out of it.
I didn't do anything to short it. No way I'm going to replace that fuse and even if I did, who knows what caused it to blow.
Could the tcon I got cause the fuse to blow?
At this point we need to have 12VDC present at that jumper, that jumper has the connection all the way to the SMD fuse on the T-CON board, if you check the resistance between the SMD fuse on the T-CON and the jumper it should show very low resistance (around 1 Ohm or so) right now.
We need to find out if the MOSFET is getting 12V feeding the it or not and if it is getting the command to turn on the MOSFET to allow the 12v to pass through it or not.
So the connections are fine, you are just not getting the 12V to feed it, so more in-depth troubleshooting on the main board is required now at this point, something must have happened to your main board.
Could that have been the problem all along with the picture you think? I don't have the skill to replace the fuse, so even if we find that it is the mainboard I can't fix it.
A mainboard on eBay is $80, it is missing the stand and the remote. By the time I buy all that stuff it's a loss, even though I got the TV free.
Why do you think the fuse is bad?
No 12V will cause you not to have pictures at all, but you did have pictures so the 12V was present, so I do not know what happen after you installed the new T-CON board.
The 12v fuse you had me check before only has 12v on one side of the fuse. The 12v is getting to the fuse but not getting out.
I put my meter in diode mode to check it also, no beep, so doesn't that mean it's shorted?
I know I'm a noob but doesn't that indicate a shorted fuse?
By the way, I just checked again on eBay, there is a mainboard for $28.
Didn't check that. I have to figure out which one that is but I'm not getting any voltage on the VGMA that you had me measure the other day.
No voltage at all on F1.
But you had indicated that you have no Voltage at all at the fuse so I assume you check the fuse resistance and Voltage at both ends of the fuse.
And it did not make any sense not to have 12V at that L57 either whether the fuse on the T-CON is good or not.
So the new board has bad fuse too then?
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