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Troubleshooting
Table Chapter 4 .1: Decision Logic Table One (DLT 1)
WARNING: OBSERVE ALL STANDARD STATIC AND SAFETY PRECAUTIONS
REFERENCES: CALIBRATION PROCEDURES (USER'S GUIDE & SERVICE MANUAL)
BEGIN WITH:
ASSUMPTIONS LISTED BELOW
EXIT TO:
THE DECISION LOGIC TABLE INDICATED AT THE END OF THIS TABLE
ASSUMPTIONS: 1. CADJET 2 SERIES PLOTTER
2. INPUT POWER
DOES DISPLAY COME ON?
DOES MEMORY COUNT UP?
DOES EPROM REVISION DISPLAY?
IS CARRIAGE SEQUENCE COMPLETE?
DOES THE KEYPAD FUNCTION?
DOES PAPER LOAD?
DOES FAN POWER UP?
DOES SELF TEST RUN?
VERIFY INPUT POWER
VERIFY INPUT POWER ON MPCB
RESEAT DISPLAY CONNECTOR (J1)
REPLACE MPCB
CLEAN SIMMS CONTACTS
TEST ANY EXTRA SIMMS AND REPLACE IF DEFECTIVE
REPLACE MPCB
VERIFY MPCB POWER
REPLACE MPCB
INSURE CARRIAGE MOVES FREELY
CLEAN AND INSPECT ENCODER STRIP
VERIFY BELT POSITION
VERIFY TENSIONER SPRING POSITION
RESEAT SERVO MOTOR POWER CONNECTOR (J6)
REPLACE SERVO MOTOR ASSEMBLY
REPLACE MPCB
RESEAT KEYPAD CONNECTOR (J1)
EVALUATE KEYPAD ACTION
VERIFY INSTALLATION OF LATEST EPROM REVISION
REPLACE MPCB
CHECK STEPPER MOTOR CONNECTOR (JP5)
REPLACE STEPPER MOTOR
REPLACE MPCB
RESEAT FAN CONNECTOR (J5)
REPLACE FAN ASSEMBLY
REPLACE MPCB
CALL ENCAD TECHNICAL SUPPORT (see Chapter 1, Section 3.0)
GO TO DECISION LOGIC TABLE 2 (DLT 2)
4-4
CONDITIONS
ACTIONS
COLUMN NUMBERS
1
2
3
4
5
6
7
Y N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
1
2
3
4
1
2
3
1
2
1
2
3
4
5
6
7
1
2
3
4
1
2
3
5
4
3
8
5
4
X
CADJET 2
8
9
N
1
2
3
4
X
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