TV beovision lx 4500 -1989 schems please thanks

[Tchotto]

all is in the title !
Problem : verticality of the image on the screen is only +/- 18cm high instead of +/- 35 ! B-O ( bang-olufsen ) told me that the " module 4 " isn't working properly ! Cost of change : +/- 300 ˆ ( = +/- 300 USD ) ! Maybe it's only a question of changing some capacitor(s) ? ! But no schems available ! ? Who could help ? Thks in advance !
Enjoy your week-end !

[Umberto]

Hello, I have Beovision LX 4500 Service Manual, 80 pages.
I change him with some users or service manuals that you have.

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