Dead Machine Service Check - Dell 3333dn Service Manual

Dead machine service check

CAUTION: Check the AC line voltage. The voltage should be within the following limits:
•
•
FRU
LVPS/HVPS
2-38
Service Manual
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
Action
Unplug the printer. Remove the LVPS/HVPS, and check the fuses for continuity.
• 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:
• If voltages are not correct, then replace the LVPS/HVPS.
• If voltages are correct, then check the engine board. See
check" on page 2-36.
• If the engine board checks out ok, perform the controller board service check.
Pins Voltage
CN201-6, 17, +24 V dc
19
CN201-10, 12, Ground
14, 16, 18
CN201-1,3, 5, +5 V dc
11,13, 15
"Engine board service