Rap 29 Main Motor Assembly - Xerox DocuPrint N2125 Service Manual

RAP 29 Main Motor Assembly

Procedure
Enter Diagnostics and select the Component Test. Scroll to Main Motor Operation and press
Enter. The Main Motor rotates.
Y N
Switch the printer power off. Remove the Left Interface Cover (1.1), Left Cover (1.2), and
Left Plate Assembly (1.11). Ensure the Rear Cover is closed. Switch the printer power on.
Measure the voltages listed in Table 1
Table 1 Main Motor Harness
From To
CN101 - Pin 1 Frame Ground
CN101 - Pin 2 Frame Ground
CN101 - Pin 3 Frame Ground
CN101 - Pin 7 Frame Ground
CN101 - Pin 8 Frame Ground
All voltages are correct.
Y N
The voltages on pins 1, 2, and 3 are correct.
Y N
On the Print Engine Controller PWB, check the voltage between P/J28 pins 1,
2, and 3 and frame ground. All three readings are +24.0 VDC.
Y N
Replace the LVPS (REP
On the Print Engine Controller PWB, check the voltage between P/J30 pin 2
and frame ground. The voltage is 24VDC.
Y N
Check the wiring between the Print Engine Controller PWB and the Rear
Interlock. Repair or replace the wiring or replace the Rear Interlock Switch
(REP 9.10).
Replace the Print Engine Controller PWB
The voltage on pin 7 is correct.
Y N
On the Print Engine Controller PWB, check the voltage between P/J28 pin 7
and frame ground. The voltage is +5.0 VDC.
Y N
Replace the LVPS (REP
Replace the Print Engine Controller PWB
On the Print Engine Controller PWB, check the voltage between P/J28 pin 10 and
frame ground. The voltage is 3.3 VDC.
Y N
Replace the LVPS (REP 9.5).
A B C
Initial Issue
DocuPrint N2125
on the Main Motor Assembly.
Voltage
+24.0 VDC
+24.0 VDC
+24.0 VDC
+5.0 VDC
+3.3 VDC
9.5).
(REP 9.3).
9.5).
(REP 9.3).
A B C
Replace the Print Engine Controller PWB
Enter Diagnostics and select the Component Test. Scroll to Main Motor Operation. On the
Print Engine Controller PWB, measure the voltage between P/J29 pin 7 and frame
ground. Press the Enter key. The voltage drops from 5.0 VDC to 0.0 VDC.
Y N
Replace the Print Engine Controller PWB
Replace the Main Motor Assembly
Problem solved, return to Initial Actions
02/2000
2-31
(REP 9.3).
(REP 9.3).
(REP 8.1).
and continue.
Status Indicator Repair Analysis Procedures
RAP 29