Rap 2 Dc Power - Xerox DocuPrint N2025 Service Manual

RAP 2 DC Power

This procedure is used to troubleshoot the Low Voltage Power Supply.
Procedure
Perform RAP 1 before starting this RAP . If RAP 1 checks out OK, switch the main power off and
disconnect the printer power. Remove the Lower Rear Cover (REP 1.7). Connect printer power.
Switch the printer power on. Measure the voltage on the LVPS between P/J167 pins 1 and 3.
The voltage matches the line voltage.
Y N
Replace the AC Input Assembly (REP 8.8).
Measure the voltage between the bottom of Fuse F101 and P/J167 pin 3. The
matches the line voltage.
Y N
Switch the main power off. Replace fuse F101. Switch the main power on. Measure the
voltage between the bottom of Fuse F101 and P/J167 pin 3. The voltage matches the
line voltage.
Y N
Replace the LVPS (REP 8.6).
Problem Solved.
Measure the voltage between LVPS P/J162 pin 3 and frame ground. The voltage is +24VDC.
Y N
On the LVPS, measure the voltage between P/J162 pin 1 and frame ground. The voltage
is +24VDC
Y N
Replace the LVPS (REP 8.6).
Check the Top Cover and the printer Upper Rear Cover. Both
closed and actuating the interlock switches.
Y N
Repair or replace the defective cover/interlock switch as necessary.
Check the continuity through the interlock switches. Replace if necessary (REP 7.5/REP
10.13).
Check the voltages listed in Table 1.
Table 1 LVPS
Red Lead Black Lead
P/J161 pin 10 Frame Ground
P/J161 pin 11 Frame Ground
P/J161 pin 3 Frame Ground
All voltages in Table 1 are correct.
Y N
Go to RAP 3.
A
Status Indicator Repair Analysis Procedures
RAP 2
voltage
covers are properly
Voltage
+5.0VDC
+3.3VDC
+24.0VDC
02/2000
2-12
A
Return to Initial Actions or to the procedure that sent you here.
Initial Issue
DocuPrint N2025/N2825