BUS Updated 12/2011
07/2011
2-1031
WorkCentre 5335 Family Service Documentation
OF 99-2, OF 99-3
Status Indicator RAPs
Initial Issue
Disconnect the sensor. Use a jumper wire to connect the output wire from the
sensor (typically pin 2 on a 3 pin connector) to DC COM or GND. The display
changes from H to L.
Y
N
There is either an open circuit or a failed PWB. Use the Circuit Diagram to
trace the output wire to the PWB. If the wire is OK, replace the PWB.
Replace the sensor.
Disconnect the sensor. The display indicates H.
Y
N
When sensors are unplugged, the input at the PWB should always be high if
there is no harness short or PWB failure. Check the output wire from the sensor
(typically pin 2 on a 3 pin connector) to the PWB for a short circuit. If the wire is
good, replace the PWB.
Figure 1
represents a typical sensor for this machine
The sensor is shorted. Replace the sensor.
Look for unusual sources of contamination.
The sensor and the circuit appear to operate normally. Check the adjustment of the sensor.
Clean the sensor. Check the sensor actuator/flag for proper operation. Check for intermittent
connections, shorted, or open wires. If the problem continues, replace the sensor.
Figure 1 Typical Transmissive Sensor Circuit Diagram
OF 99-3 Switch
Procedure
NOTE: To view the Circuit Diagram for this procedure refer to (
Figure 1
).
Enter
Component Control
[XXX-XXX]. Actuate the switch. The display changed.
Y
N
There is +3.5 / 5VDC measured between Pin 2(+) of the Switch and GND(-).
Y
N
Check the wire between the switch Pin 2 and the PWB Pin 3 for an open circuit and
poor contact. If the check is OK, replace the PWB.
There is +3.5 / 5VDC measured between Pin 1(+) of the Switch and GND(-).
Y
N
Replace the switch.
Check the wire between the PWB Pin 4 and the switch Pin 1 for an open circuit and poor
contact. If the check is OK, replace the PWB.
De-actuate the switch. The display changed.
Y
N
Disconnect the connector on the switch. The display changed.
Y
N
Check for a short between the switch Pin 2 and the PWB Pin 3. If the check is OK,
replace the PWB.
Replace the switch.
Replace the switch.
Figure 1 2003
A
B
C
D