Xerox 6250N Service Manual - Page 173
DC Power Supply Troubleshooting
UPC - 095205770407
View all Xerox 6250N manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 173 highlights
DC Power Supply Troubleshooting Troubleshooting Reference Applicable Parts Wiring and Plug/Jack Map References Low Voltage Power Supply, PL 12.1.10 "Power Supply" on page 10-16 Procedure Step 1 2 3 4 5 6 Action and Questions Yes No Perform the AC power supply troubleshooting procedure first, if this does not fix the problem go to Step 2. Turn the AC power Switch OFF. Is the fuse (F001) on the low-voltage power supply board open? Replace the LowVoltage Power Supply Board, page 8-99. Go to Step 3. Disconnect the connectors J163, J164 and J165 from the LVPS, turn the AC power switch on and verify the DC voltages between the following pins on the Low Voltage Power Supply board. P163-1 P163-2 = +24 VDC? P164-1 P164-2 = +3.3 VDC? P165-1 P165-2 = +5 VDC? P165-3 P165-4 = +3.3 VDC? Go to Step 4. Replace the LowVoltage Power Supply Board, page 8-99. Caution Be careful not to touch any other pins during these measurements or you may blow the fuse (F001) on the LVPS. Turn the AC power switch OFF. Connect J164 to the LVPS then turn the AC power switch ON. P/J164-1 P/J164-2 = +3.3 VDC? Go to Step 7. Check the following parts for fault or damage: ■ LVRPG Harness Assembly for damage or if it is shorted to the frame. ■ Engine Control Board. Replace if damaged or defective. Does the problem recur? Go to Step 7 Go to Step 5. Go to Step 7. Complete 4-12 Phaser 6250 Color Laser Printer Service Manual