Star Trac 1000 Owner's Manual page 34

ERROR MESSAGE
PROBABLE CAUSES SOLUTION
"SPD ERROR 2"
See "SPD ERROR 0"
Initial feedback loss
Misadjusted or faulty
motor control board
Contact Unisen
Power switch "OFF/ON" Shut power "OFF," wait ten
cycled too fast
seconds then turn "ON."
"CPU ERROR 0"
Power switch failure
Shut power "OFF," wait ten
Wandering program
cycled too fast
seconds then turn "ON."
counter
"CPU ERROR 1"
Low voltage at CPU
Contact Unisen
100 ms flag missed
Intermittent connection
display cable at display
board or motor control board
Contact Unisen
"CPU ERROR 2"
Faulty digital logic on
Replace display
Snooper routine
display board
board
violation
"EL ERROR 0"
0% switch defective
Replace 0% switch
0 % grade sensed
above .5% grade
"EL ERROR 1"
Elevation screw binding
Lubricate with lite oil
Stalled elevation
Elevation screw dirty
Clean and lubricate
elevation screw
Open circuit in elevation motor
Check elevation
motor connector
Blown fuse
Contact Unisen
"EL ERROR 2"
Bad elevation inver
Contact Unisen
No elevation control
"EL ERROR 3"
Disconnected elevation motor
Contact Unisen
Initial stall while
seeking 0% elevation
Misadjusted elevation count sensor
Contact Unisen
0% switch defective
Contact Unisen
Blown fuse
Contact Unisen
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