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Lifting Plate (Multipurpose Tray) Service Check
FRU
1
Lifting Plate
Drive Assem-
bly
2
Lifting Plate
Position Sen-
sor (PS1302)
3
Lifting Plate
Solenoid
(SL2)
4
System
Board
Main Motor Service Check
FRU
1
Main Motor
Drive Line
Connectors
2
Door Switch
3
Main Motor
(MT1)
4
System
Board
Action
The lifting plate drive assembly could be
defective. Replace any damaged parts.
The lifting plate position sensor could be
defective. Check the sensor (PS1302) by
measuring the voltage at J214-3 and J214-6
(+5 V). You should get a lower reading when
the lifter plate rises. If it is defective replace
the multipurpose tray board (14-20).
The lifting plate solenoid could be defective.
Disconnect lifting plate solenoid connector
J1302. Measure the resistance between con-
nectors J1302-1 and J1302-2 on the cable
side. If it is not about 100 Ohms replace the
lifting plate solenoid (14-6).
The system board could be defective (4-9).
Action
The main motor drive line connectors could be
loose. Reconnect connector J12 of the main motor
and connector J218 on the system board.
The door switch in the switch/sensor board could
be defective. Remove connectors J205 and J221
on the system board. If J205-3(+24 V dc) and J221-
1(+24 VB) on the cable side do not conduct when
the door switch (SW1401) is on, replace the switch/
sensor board (4-18).
The main motor could be defective. If it does not
rotate during POR and no error codes appear,
replace it (2-7).
The system board could be defective (4-9).
Diagnostic Information 2-25
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