[CVRC] PK-232 Service Manual

[Joe]

I have been having a problem with my PK-232/MBX TNC.
In order to repair/align it, I need the service
manual. If anyone has a copy of the service manual,
could I get a copy of it? I have a spare TNC 
(Kantronics KPC-9612 PLUS), but it is only for HF/VHF
packet. I need to have the PK-232/MBX up and running
for all the other digital modes (i.e. RTTY, PACTOR).
My PK-232/MBX has been upgraded to include the
Timewave sound card board.
Please let me know if a service manual is available
locally. 
I monitor 2 meters 146.610 mhz., or can be reached
by email at  wa6ddf at yahoo.com

Joe - WA6DDF