54
TRAK Machine Tools
Southwestern Industries, Inc.
TRAK VMC Mills with ProtoTRAK RMX CNC Safety, Installation, Maintenance, Service & Parts List
3.3.7 Overlay Keys Not Responding
Keys from any section of the Programming or Run Panels are not responding. Do the following Service
Code and procedures.
•
Code 81
Front Panel Keyboard Test
Possible Cause
Check This
Control did not recognize the correct
product model
Run Service Code 81 and verify that the screen displays
the same key panels as the VMC. If wrong key panels,
reboot and retest Code 81. If problem persists, call
customer service.
Keys work but erratic, some work, some
don’t
Open the rear panel and check to make sure all 4 ribbon
cables are tight and seated correctly as shown:
If they are, call TRAK customer service. Likely need
programming panel replacement.
No keys work at all
Check 4 ribbon cables shown above and RS232 cable
from overlay PCB to motherboard are seated as shown:
If RS 232 seated correctly, call TRAK customer service.