Repair to a 11ak19P4 chassis, goodmans widescreen

[cconcepts]

I have 2 wide screen Goodmans Tv set that have the same fault.
The TV powers up and comes on when a channel is selected however all that can be
seen is the horizontal scan lines on a bright background.
There are NO, on screen graphics in the background and no picture if an aerial or video signal connected.
The chassis is an 11AK19P4

Have ordered the schematics and diagrams but have not got them yet.

Does anyone know this chassis and can point me in the right direction.

[Daniel1]

Have you 200V for video stage ?
- 45V - frame Ic ?

[ian-inhome]

check R704 value can vary depending on model usuall 100 ohm

[mickeymay]

I've not repaired a 11ak19 with that prefix, but I've had a few faults of a similar description with the 11ak19 and found in each case the LOPTX has proved to have been faulty.