Xerox DocuColor 1632 Service Manual page 139

7-271 Tray 2 Paper Size Sensor
An abnormal AD value was detected by the Tray 2 Paper Size Sensor.
Initial Actions
Ensure that the Paper Guide Tab makes contact with the sensor.
Procedure
Ensure that Tray 2 is fully seated. The voltages measured at P/J546-8 on the Tray Module
PWB corresponds with the table on BSD 7.2
Y N
There is +5VDC measured between P/J816-1 and 3 on the Tray 2 Paper Size Sensor.
Y N
Check the wires and connectors. If the check is OK, replace the Tray Module PWB
(PL 16.15).
Replace the Tray 2 Paper Size Sensor (PL 16.1).
Replace the Tray Module PWB (PL 16.15).
Figure 1 Tray 2 Paper Size Sensor
Prelaunch Training/Review
DC1632/2240
7-274 Tray 5 Paper Size Sensor
An abnormal AD value was detected by the MSI Paper Size Sensor.
Initial Actions
Check the connectors between the Tray 5 Paper Size Sensor and the I/F PWB
Procedure
Enter dC140 [007-100] and press Start. Move the Tray 5 Paper Size Sensor (PL 2.15). The
AD value changed.
Y N
There is 3.3VDC measured at P/J265-3 on the Tray 5 Paper Size Sensor.
Y N
Check the wires and connectors. If the check is OK, replace the I/F PWB (PL 9.1)
Enter dC140 [007-100] and press Start. Move the Tray 5 Paper Size Sensor (PL 2.15).
The voltage at P/J265-2 changes.
Y N
Check the wires and connectors. If the check is OK, replace the Tray 5 Paper Size
Sensor (PL 2.15).
Replace the MCU PWB (PL 13.1).
If the problem continues, replace the I/F PWB (PL 9.1).
Replace the MCU PWB (PL 13.1).
If the problem continues, replace the I/F PWB (PL 9.1).
Figure 1 Tray 2 Paper Size Sensor
6/02
2-109
Status Indicator RAPs
7-271, 7-274