Xerox Phaser 6280 Service Manual page 360

General Troubleshooting
4-72
Troubleshooting Procedure Table (continued)
Step Actions and Questions
4 1. Turn the AC power Switch Off.
2. Connect J501 to the LVPS then turn the
AC power Switch On.
3. Check continuity between P501-3 pin <=>
P501-4 pin?
4. Is there 3.3 V present?
Check the following parts for fault or
5
damage:
LV Top Harness, PL10.1.16
MCU Board, PL9.1.20
6 Does the problem still occur?
7 1. Turn the AC power Switch Off.
2. Connect J501 to the LVPS then turn the
AC power Switch Off.
3. Check continuity between P501-1 pin <=>
P501-2 pin.
4. Is there +5 V present?
Check the Top LV Harness for fault or
8
damage.
9 Does the error occur?
1. Turn the AC power Switch Off.
10
2. Connect J502 to the LVPS then turn the
AC power Switch On.
3. Check continuity between P502-1 pin <=>
P502-2 pin?
4. Is there +24 V present?
Check the Top LV Harness for fault or
11
damage.
Yes
Go to step 7.
Replace if
damaged.
Go to step 6.
Go to step 7.
Go to step 10. Go to step 8.
Replace if
damaged.
Go to step 9.
Go to step 10. Complete.
Complete.
Replace if
damaged.
Phaser 6280 Color Laser Printer Service Manual
No
Go to step 5.
Go to step 7.
Complete.
Go to step 10.
Go to step 11.
Complete.