Rap 24 Inoperative Printer - Xerox DocuPrint N2025 Service Manual

RAP 24 Inoperative Printer

The main power cannot be switched on.
Procedure
Ensure the power cord is properly connected to the wall outlet and to the back of the printer.
The problem still exists.
Y N
Problem solved.
Perform RAP 1, then return here. RAP 1 indicated that correct AC voltage is being sup-
plied to the printer.
Y N
Notify customer that the power is out of specification.
Perform RAP 2, then return here. RAP 2 indicated that correct DC voltage is being sup-
plied to the printer.
Y N
Rap 2 instructed you to replace a component.
Y N
Perform RAP 3.
Replace component as necessary.
On the System Controller PWB, check the voltage on P/J3 between pins 1 and 2. The
age is 3.3VDC.
Y N
Switch the printer power off. Disconnect P/J3 from the System Controller PWB. Switch the
printer power on. Check the voltage between pins 1 and 2 on the disconnected plug. The
voltage is 3.3VDC.
Y N
On the LVPS, check the voltage on P/J163 between pins 1 and 2. The voltage is
3.3VDC.
Y N
Replace the LVPS (REP 8.6).
Repair or replace the harness between the LVPS and the System Controller (PL
9.2).
Switch the printer power off. Remove any options connected to the System Controller
PWB. Reconnect P/J3 to the System Controller PWB. Switch the printer power on. Check
the voltage on P/J3 between pins 1 and 2 (if there are no options installed, follow the No
path). The voltage is 3.3VDC.
Y N
Replace the System Controller PWB (REP 8.1).
Switch the printer power off. Reinstall the removed options one at a time, switching on the
power and checking for 3.3VDC on P/J3 between pins 1 and 2 after each one is installed.
Replace the option just installed when the voltage fails.
On the System Controller PWB, check the voltage on P/J13 between pins 1 and 2. The
age is 5.0VDC.
Initial Issue
DocuPrint N2025/N2825
Y N
Switch the printer power off. Disconnect P/J13 from the System Controller PWB. Switch
the printer power on. Check the voltage between pins 1 and 2 on the disconnected plug.
The voltage is 5.0VDC.
Y N
On the LVPS, check the voltage between P/J168 pins 1 and 2. The
24.0VDC.
Y N
Replace the LVPS (REP 8.6).
Replace the System Controller +5.0VDC Power Supply (REP 8.9).
Switch the printer power off. Remove any options connected to the System Controller
PWB. Reconnect P/J3 to the System Controller PWB. Switch the printer power on. Check
the voltage on P/J3 between pins 1 and 2 (if there are no options installed, follow the No
path). The voltage is 3.3VDC.
Y N
Replace the System Controller PWB (REP 8.1).
Switch the printer power off. Reinstall the removed options one at a time, switching on the
power and checking for 3.3VDC on P/J3 between pins 1 and 2 after each one is installed.
Replace the option just installed when the voltage fails.
Replace the System Controller PWB (REP 8.1). If the problem persists, replace the Print
volt- Engine Controller PWB (REP 8.5).
volt-
02/2000
2-27
voltage
Status Indicator Repair Analysis Procedures
RAP 24
is