Download Monochrome Laser Printer Service Manual

InfoPrint 1811, 1812
Dead machine service check
CAUTION: Check the AC line voltage. The voltage should be within the following limits:
• 100 V ac (volts alternating current)-127 V ac for the 110 V printer
• 200 V ac-240 V ac for the 220 V printer
FRU
Action
Unplug the printer. Remove the LVPS/HVPS, and check the fuses for continuity.
LVPS/HVPS
• If open, then replace the LVPS/HVPS.
• If not open, then check the switch continuity across its conductors with the switch on.
Turn the switch off. Plug the AC line into the LVPS/HVPS and switch unit on.
Note: Voltages are exposed at several places on the board. Do these verifications, and then
unplug the AC cord from the power supply:
Pins
Voltage
CN201-6, 17,
19
+24 V dc
CN201-10, 12,
14, 16, 18
Ground
CN201-1,3, 5,
11,13, 15
+5 V dc
• If voltages are not correct, then replace the LVPS/HVPS.
• If voltages are correct, then check the controller board. See “Controller board service
check” on page 2-18.
2-20 Lexmark™ E360d, E360dn