sony KV28DS60U picture problem

[nikUK]

im after general pointers as to the cause of my problem..
the picture seems to move in/out depending on what is being displayed..brightness related i guess..
also there is distortion on the corners..bending inwards though not all the time again dependent on the picture being displayed..
i have access to the electronic screwdriver menu but will not adjust anything until i have some rough idea as to what setting to change..im guessing its related to the pin cushion/level settings but need help please..
regards
nik

[gary]

HIGHLY UNLIKELY TO BE AN ADJUSTMENT IF IT VARIES WITH PICTURE CONTENT, I WOULD SUSPECT A BEAM LIMITER FAULT CAUSING THE PICTURE TO "BREATHE", CHECK R520, R543, R557, R544 FOR HIGH IN VALUE.

[nikUK]

thanks gary..will check it out..

[dany12742]

check ABL or +b in horizontal output, possible fail in power source