SONY BVM picture not in the centre

Green Beret

Fio's Quartermaster
I connect Atomiswave on the supergun and image is almost in the centre. However if I connect PGM it goes a big margin left.
If I use Horizontal phase to correct it then there is an image distortion on the top of the screen.
There is an option for V centre but not for H centre
Is there another way to centre image?
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