Technical information

Appendix B: Touble Shooting 39
DRV Operator’s Manual and Technical Reference (rev 1 0 June 30, 2000)
For fuse locations on the fuse block, reference Figure B.3 below. The fuse block is
located in the main controller cabinet in the battery box on the left side of the truck.
Fault Probable Cause
Power switch ON, power light OFF and
no messages on LCD
1: Main circuit breaker open
2: Controller fuse blown
Power switch ON, power light OFF, and
"HW Init Fail. No DAC found" on LCD
Digital to Analog Converter not found:
possible board failure or loose interface
cable
Power switch ON, power light OFF, and
"HW Init Fail. No DIO found" on LCD
Digital I/O board not found: possible
board failure or loose interface cable
Power switch ON, power light OFF, and
"HW Init Fail. No ADC found" on LCD
Analog to Digital Converter not found:
possible board failure or loose interface
cable
"Power Failure" on LCD Computer detected input power below
9.4 volts. Automatic shutdown to
prevent damage.
"Crash in 1" on LCD Software crash
"Crash in 2" on LCD Software crash
"Crash in 3" on LCD Software crash
"Crash in 4" on LCD Software crash
"Crash in 5" on LCD Software crash
"Emergency Stop" and time/date on LCD Emergency stop button depressed.
"NOT Rdy: PWM Res" on LCD Valve power amplifiers OFF and boom
and/or azimuth restraint pins not
removed.
"NOT Rdy: Res" on LCD Boom and/or azimuth restraint pins not
removed
"NOT Rdy: PWM" on LCD Valve power amplifiers OFF.
"System Ready" and time/date on LCD System is ready to be used.
1: "System Ready" on LCD
2: Arm does not respond to joystick input
3: Dump body hydraulic components
functional
4: No lights on PWM amplifiers
PWM power fuse blown.
1: "System Ready" on LCD
2: Multiple joints (3 or 4) on arm do not
respond to joystick input.
3: Dump body hydraulic components
functional
4: All PWM amplifier boards have status
lights operative.
Arm valve power fuse blown. Check
both, there are two.
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