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2-72 Service Manual
5016-001
Power Service Check
Note: If any paper handling options, (250/250 tray or duplex unit),
are installed, remove the option(s) and check the base printer for
correct operation.
If the base printer operates incorrectly, go to A.
If the printer operates correctly, reinstall the options and go to B.
Note: If the AC input cables attached to CN404 (A) or CN405 (B)
are unplugged from the LVPS assembly, be sure they are reinstalled
correctly.
CAUTION: Observe all necessary precautions when removing and
handling the circuit boards, or when checking the AC power wiring or
FRUs.
A Base printer with no paper handling options installed.
FRU Action
1 Line Voltage Check the AC line voltage. If the line voltage is
incorrect, inform the customer.
2 AC Line Cord Check the line cord(s) for any signs of damage.
• If incorrect, replace the cord.
• If correct, check the continuity of the line cord
and replace if necessary.
3 LVPS Fuses
F401, F402
Remove and check Fuses F401 and F402. If
neither is blown, go to step 5.
• If either or both fuses are blown, replace the
fuse and turn the printer on. Verify the printer
is operating properly.
• If, after replacing either or both fuses and the
power is turned on and neither fuses blow
again, but the printer does not function
properly, go to step 8.
• If either fuse continues to blow, go to step 4.
CAUTION: Before checking either fuse, turn the
AC On/Off switch off and disconnect the AC
power cord.