Thanks for the info

I would be extremely appreciative if I can get a schematic (or service model) for this tv model (or chassis) so I can trouble shoot the video signal circuit.
If it helps, the Service Manual number is CM-147/C-11(A)
The Chassis is C11 (info obtained from Z-tips). The Main board has a sticker marked: 9-1551
Thank you
majesus18 @ gmail.com