[TMC] GPT-750 RTP-2 Drawing Wanted CA-406

k5urg at yahoo.com k5urg at yahoo.com
Thu May 7 21:11:08 EDT 2026


Hi All,

I am working an GPT-750D that I acquired a few years ago.  It is generally in  good shape, but one of the previous owners rewired the Mode switch, located in the RTP chassis. 

I am  trying to rewire the switch as  for the manual.  I downloaded for JP's TMS site lots of very useful documentation that helped me figure out the operation of the Oak switch.  By the way, the TMC web site is amazing.  It is  is well organized and contains so much information.  JP, thank you for the hard work!

Unfortunately, the main Cable Assy Diagram CA-406 is missing.  It would be very useful to figure out some of the wiring to the S-601 switch, without dismantling the main harness.

Any help in getting access to CA-406 would be wonderful

Thank you and Best, 

Francesco K5URG





More information about the TMC mailing list