[Premium-Rx] WJ 8617B / 8618B SDU

[Stephous]

I'm in the process of up-grading my WJ radio racks and I'm working on one of
my WJ 8618B's. It has an SDU issue that cannot be rectified by alignment.
The center frequency has drifted to the far right side of the CRT. Something
in the horizontal deflection circuit is out of tolerance. The problem has
been getting worse with time.

I don't have the schematic or the alignment procedure for the SDU. Before I
blindly dive into this unit does anyone have?

1) Schematic

2) Alignment procedure

3) SDU for sale

I'm sure that I can repair this SDU but it would be nice to do it by the
book. Please contact me off the list if you have any of these items.

Best Regards,
Steve Pappin