Hyundai HPTD-4201S help please

[Jestah1]

Hi,

I've got a unit with a fault that I'd like advice on

with no input and selecting input channels, the on screen display text is shown as a vertical bar rather than in the upper right.

the horizontal position is correct as are the colours shown.
it just seems to have lost its sync....

can anyone advise or point me to a service manual?

Thanks
Simon

[jestah1]

Hi,

I've looked into it further, it's LG 42V6 inside

I've changed the control bd, which made no change.

Could it be the YSUS or YDRV boards?