Help finding the correct model of a T-Con board on my Hitachi TV

[sotodefonk]

Hi, I have a Hitachi tv model L47V651, there is no image, but sound and backlights turn on, so I believe the issue is the tcon board.

I opened the tv to access the board and took the shared pictures of the T-Con board.

I saw a video from shopjimmy on how to detect the model number on tcon boards, but this doesn't have a sticker like how that video showed all boards.

I searched the P/N number and got results with the same marking name and P/N my board has but they list other specific tv models like Vizio and Philips brand but not Hitachi.

Inspecting the pictures and comparing, the cards looks that have all the same components but at the top there is a big code marking on white box that are different as you can see on my picture mine says JB618V 1023A1 and also above it you can read ASS'Y/N A-1-4, but on the results I got all the different pages that sell a replacement the pics have a different code marking and also show B-1-4 on the ASS'Y/N.

Searching for the big code 12 digits show no results.

Can I use one of these boards on my tv? Or are these specifically adjusted to models, and I need to find one with the same markings?

Thanks in advance

[vinceroger69]

Have you tested you have 12v dc on both sides ot the fuse (2nd picture bottom edge of board by lvds connector)

[yokoono]

Have you measured the voltages VGH, VGL, etc.?

[sotodefonk]

Sorry my multimeter wasn't working correctly, so i had to get a new one, i hadn't test the voltage points.

The board is under a metal plate that doesn't let me connect the display cables to it and test it don't know if not having these cables connected makes a difference on the readings. I only connect the lvds cable, turned on the TV and tried to read voltages. I only get 1.8v on the fuse vinceroger69, and all the marked points you did on your pic yokoono show 0v

[R_J]

You should have +12vdc on both sides of the fuse on the t-con board, if that voltage is missing the t-con cannot operate.

[yokoono]

Here you must have 12v. At both ends of the fuse.

[sotodefonk]

yeah i only get 1.8v there, guess that board could be good, and the wrong one would be the main board that isn't sending the correct voltage? the tv can change channels and i can hear sound of the tv channels, back light turns on and everything seems to be working, need to took the main board out and check it