Belt Tracking; Belt Edge - Xerox DocuColor 1632 Service Manual

4-640 Belt Tracking

IBT tracking failure
Procedure
BSD: CH9.19 CH9.31A
Check if actuator for IBT Edge Sensor touches belt edge. IBT Edge Sensor touches belt
edge.
Y N
Check actuator installation.
Turn the power ON. Between I/F PWB j533-A11(+) and GND(-). Between +3 VDC and 1
VDC is measured.
Y N
Between I/F PWB j533-A9(+) j533-A10(-). +5 VDC is measured.
Y N
Check +5VDC circuit to I/F PWB j533-A9.
Between I/F PWB j533-A11(+) and GND(-). +5 VDC is measured.
Y N
Between I/F PWB j533-A11(+) and GND(-). 0 VDC is measured.
Y N
Check wire breakage and bad connection between I/F PWB j533and IBT Edge
Sensor j119.
If the check is good, replace IBT Edge Sensor
If the problem continues, replace MCU PWB
Check wire breakage and bad connection between I/F PWB j533-A11 and IBT Edge
Sensor j119-2.
Replace IBT Edge Sensor (PL 5.4).
Between I/F PWB j530-A9(+) and GND(-). +24 VDC is measured.
Y N
Following Wire Network, check +24VDC circuit up to I/F PWB j530-A9.
Remove IBT Assembly (REP 9.15). Enter dC330 [004-001] and press Start. IBT
Motor energizes.
Y N
Check wire breakage and bad connection between I/F PWB j550 and IBT Steering Motor
j207. There are broken wires or bad connections.
Y N
Replace MCU PWB (PL 13.1).
If the problem continues, replace I/F PWB
If the problem continues, replace IBT Steering Motor
Repair broken wire and bad connection.
Check IBT Belt installation (REP 9.22). If the check is good, replace MCU PWB
Status Indicator RAPs
4-640, 4-641
(PL 5.4).
(PL 13.1).
Steering
(PL 9.1).
(PL 1.3).
(PL 13.1).

4-641 Belt Edge

IBT belt edge not detected.
Procedure
BSD: CH9.19 CH9.31A
Check if actuator for IBT Edge Sensor touches belt edge. IBT Edge Sensor touches belt
edge.
Y N
Check actuator installation.
Turn the power ON. Between I/F PWB j533-A11(+) and GND(-). Between +3 VDC and 1
VDC is measured.
Y N
Between I/F PWB j533-A9(+) j533-A10(-). +5 VDC is measured.
Y N
Close FRONT door. If voltage between j533-A9(+) j533-A10(-) is less than +5VDC,
replace MCU PWB (PL 13.1).
Between I/F PWB j533-A11(+) and GND(-). +5 VDC is measured.
Y N
Between I/F PWB j533-A11(+) and GND(-). 0 VDC is measured.
Y N
Check wire breakage and bad connection between I/F PWB j533and IBT Edge
Sensor j119.
If the check is good, replace IBT Edge Sensor
If the problem continues, replace MCU PWB
Check wire breakage and bad connection between I/F PWB j533-A11 and IBT Edge
Sensor j119-2.
Replace IBT Edge Sensor (PL
Between I/F PWB j530-A9(+) and GND(-). +24 VDC is measured.
Y N
Following Wire Network, check +24VDC circuit up to I/F PWB j530-A9
Remove IBT Assembly (REP 9.15). Enter dC330 [004-001] and press Start. IBT
Motor energizes.
Y N
Check wire breakage and bad connection between I/F PWB j550 and IBT Steering Motor
j207. There are broken wires or bad connections.
Y N
Replace MCU PWB (PL 13.1).
If the problem continues, replace I/F PWB
If the problem continues, replace IBT Steering Motor
Repair broken wire and bad connection.
Check IBT Belt installation (REP 9.22). If the check is good, replace MCU PWB
6/02
2-62
(PL 5.4).
(PL 13.1).
5.4).
(PL 9.1).
(PL 1.3).
Prelaunch Training/Review
Steering
(PL 13.1).
DC1632/2240