TM 10-3930-675-24-1
TROUBLESHOOTING INTRODUCTION - CONTINUED
0004 00
EXHIBIT 1 - DIAGNOSTIC MENUS
An explanation of each screen in the diagnostic menus; the normal values and ranges of values. 3998R
and 7364 indicated where applicable.
DIAG SERVO
DIAG SERVO
1(13)
Supply voltages to ECU 790 connector 1.
SYSTEM POWER
24.00V
Normal voltages; 23 to 27V.
POWER RI CAN
24.00V
POWER LE CAN
24.00V
10V reference voltage output from ECU 790 connector
10V REF OUT
10.00V
1 to joystick, boom extension sensor, and boom angle
sensor.
DIAG SERVO
2(13)
Signal from override switch to ECU 790 connector 1.
Signal from twistlock button to ECU 790 connector 1.
OVERRIDE
0
0 = switch not depressed, 1 = switch depressed.
TWISTLOCK
0
DIAG SERVO
3(13)
Signals from the side shift buttons to ECU 790
connector 1.
SIDE SHIFT RI
0
Signal from index button to ECU 790 connector 1.
SIDE SHIFT LE
0
0 = switch not depressed, 1 = switch depressed.
VERTICAL LIFT
0
DIAG SERVO
4(13)
Signals from the float lock buttons to ECU 790
connector 1.
LOCK TILT
0
LOCK OSCILLATE
0
0 = switch not depressed, 1 = switch depressed.
DIAG SERVO
5(13)
Signals from the joystick lever to ECU 790 connector
1.
LIFT/LOWER
5.00V
Range = 1 to 9V, Neutral = 5V
BOOM IN/OUT
5.00V
Lift = V >5V, Lower = V<5V
In = V<5V, Out = V>5V
0004 00-9
