Looking for Sony KV 4000 service & circuit manual

[noon]

Hello everybody,

thanks for the quick answer to my membership request!

I just purchased two KV 4000, and while they are in good physical condition for their age, both suffer from slightly off-centered pictures (besides from the known broken button issue, which there are already manuals for).
I'd like to repair them before I put one into daily use and the other one into my collection.

Is someone in the possession of one or both mentioned manuals? I think I'm unable to locate everything required to test and replace without a proper manual.

Thanks in advance!