Xerox DocuColor 2240, Service Manual

Page: 212 / 1489

09/03
2-179
DC 3535/2240/1632, WC M24
9-343
Status Indicator RAPs Initial issue
9-343 2nd BTR Retract
The 2nd BTR did not reach the retract position.
Initial Actions
• Clean the 2nd BTR Retract Sensor ( PL 2.9 ) and check for damage.
• Check the 2nd BTR gears ( PL 2.8 ) for breakage.
Procedure
Enter dC330 [009-200]. Open the Left Cover and block and unblock the 2nd BTR Retract Sen-
sor with a piece of paper. The display changes state.
Y N
Disconnect P/J140 . There is +5VDC from J140-3 to J140-1 ( Figure 1 ).
Y N
Check the wires from P/J533 on the I/F PWB to the sensor ( Figure 1 ). If the wires
are OK, replace the I/F PWB ( PL 9.1 ).
There is +3.3VDC from J140-2 to GND.
Y
N
Check the wire from P/J533 -B19 on the I/F PWB to J140-2 for an open or a short
circuit to GND. If the wires are OK, replace the I/F PWB ( PL 9.1 ). If the problem is
not solved, replace the MCU PWB ( PL 13.1 ).
Replace the 2nd BTR Retract Sensor ( PL 2.9 ).
In sequence, enter the following: dC330 [009-051] then dC330 [009-052]. The 2nd BTR con-
tacts and retracts.
Y
N
There is +24VDC from
P/J533 -B9 on the I/F PWB to GND ( Figure 2 ).
Y N
Go to the +24 VDC Wirenets ( Figure 2 ) and troubleshoot the problem.
Check the wires between P/J533 and P/J216 ( Figure 2 ) on the 2nd BTR Retract Motor
for opens, shorts, or loose connections. If the wires are OK, replace the 2nd BTR Retract
Motor (
PL 2.9 ). If the problem continues, replace the MCU PWB ( PL 13.1 ). If the problem
continues, replace the I/F PWB ( PL 9.1 ).
Check for mechanical problems preventing the movement of the assembly. Check for debris
blocking the sensor.
Figure 1 9-343 Rap Circuit Diagram - 2ND BTR Retract Sensor