Angle Reading Problem - PAT EI65 Troubleshooting Handbook

EI65 TROUBLESHOOTING HANDBOOK

3.3 ANGLE READING PROBLEM

PROBLEM: Displayed Angle Incorrect. Actual measured angle is different from displayed angle.
Use a calibrated inclinometer to measure the actual main boom angle
Refer to Drawing 5. Angle Sensor Adjustment in Section 5. Drawings.
Correct?
Check the voltage at angle sensor between connector pins A (AGND) and C (+5V).
Correct?
Check the voltage between X1:20 (ground) and X1:18 (signal/output voltage).
Correct?
Yes
and compare with displayed angle on console.
Check the supply voltage to angle sensor on connection board
between X1:17 (+5VDC) and X1:20 (ground).
Refer to Drawing 1, System Diagram in Section 5.
No
Yes
Refer to Drawing 1 & 6 in Section 5.
Cable assembly defective, replace cable assembly.
No
Refer to Drawing 1, System Diagram in Section 5.
Yes
Voltage should be 3.125V (0°), 2.5V(45°), 1.875V (90°).
Refer to Drawing 6, Angle Sensor Circuit in Section 5.
No
Refer to Section 14. Angle Sensor Setup/Adjustment Procedures.
Complete steps 4.1 through 4.6 and 4.12 through 4.24 in the Calibration
Section of Operator's and Calibration Handbook 031-300-190-015.
START
Check system power supply voltage.
Complete to Section 3.1 No Display.
Replace Angle Sensor.
END
031-300-190-035 REVISION A 01/25/99
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