Figure 2-7 Cab Command - Carrier SUPRA 850Mt Operation And Service Manual

2.8 MICROPROCESSOR CONTROLLER
5.
1. Display
2. Up and down arrow keys
3. Function change key
4. Run/Stop switch
5. Road key
6. Comp. 1 ON/OFF switch
7. City speed key
8. Comp. 2 ON/OFF switch
9. Manual defrost key
2.8.1 Introduction
The microprocessor controller is housed in the con-
trol box. This controller consists of 2 control boards and
a relay module :
1. The Processor Board includes the microprocessor,
program memory, and necessary input/output cir-
cuitry to interface with the unit.
2. The Relay Module contains replaceable relays,
diodes and fuses along with the wiring harness.
The Cab Command is remote mounted in the truck.
The Cab Command includes the LCD display, keypad
and keypad interface (see Figure 2-7).
1.
2.
3.
4.
6.
7.
8.

Figure 2-7 Cab Command

9.
10.
10. Comp. 3 ON/OFF switch
11. Buzzer off key
12. Standby key
13. Pretrip key ( not used )
14. Auto-start/Stop key
15. Unit data key
16. Fault alarm led
17. Enter key
Under no circumstances should anyone
attempt to repair the Logic or Display
Boards!
Should a problem develop with these
components,
Carrier
replacement.
2-15
17.
16.
15.
14.
13.
12.
11.
CAUTION
contact your nearest
Transicold dealer for