4511-xxx
2-86 Service Manual
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
LVPS/HVPS
Unplug the printer and check the fuses on the
LVPS/HVPS board for continuity.
• If open, replace the LVPS/HVPS board.
If fuse opens again, see “LVPS/HVPS
service check” on page 2-90 for more
information.
• If not open, unplug the cables at CN102 and
CN201 (fuser and controller card
respectively).
Plug LVPS/HVPS board to source and turn
switch on.
Verify 24 V dc on pin 8 at connector CN201 (or
pin 8 at J4 on the controller card).
Verify line voltage (100 V, 110 V, or 220 V ac)
across pins 1 and 2 of CN102.
• If voltages are not correct for the geography,
replace the LVPS/HVPS board.
• If voltages are correct, check the controller
card. See “Controller card” on page 5-3.
Verify grounds. See the wiring diagram at the
end of the book.
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