Hello folks, was wondering if anybody might have schematics or a service
manual for one of these old boat anchors?

This unit I've got seems to work most of the time, but, intermittently,
the AC output goes rather wild by more than 100mv of it's set output. I've
tried taking out all the plug-in cards and cleaning all the contacts on
them, but this hasn't helped any. I hesitate to start with the "replace
all the caps" method of troubleshooting as there's tons of them in this
thing, and would rather apply some more traditional methods of
trouble-shooting. Thanks for any help!

Best Regards,

Jay Walling
Diagnostic Engineer
jwalling AT comarkcorp.com
Comark Corporation
93 West St.
Medfield, MA 02052
http://www.comarkcorp.com