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2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-38 T
4.2.1 AC power is absent
Power plug
1) Is the power plug connected to the power outlet?
NO: Connect the power plug.
Power source
2) Is there rated AC voltage present at the power outlet?
NO: The problem is not in the machine. Advise the user.
Leakage breaker
3) Has the leakage breaker located in the left bottom of the machine
turned on (i.e., is the switch at the
marking)?
NO: Remove the cause that turned on the leakage breaker, and shift the
switch of the leakage breaker to the | marking.
Power cord, Line noise filter (LF1)
4) Try replacing the power cord/line filter. Is the problem corrected?
NO: Check the wiring of the AC power supply line and the connectors
for poor contact.
Main power switch (SW1), Wiring
5) Is the resistance 0
ΩΩ
ΩΩ
Ω when the switch is turned on and
∞Ω∞Ω
∞Ω∞Ω
∞Ω when the
switch is turned off?
NO: Replace the power switch.
YES: Check the wring of the AC power line and the connectors for poor
contact.
4.2.2 DC power is absent
AC power supply
1) Is there rated AC voltage between connectors J4001-1 and J4001-2
on the DC power supply PCB?
NO: See “AC power is absent.”
Fuse (F4001)
2) Is the fuse on the DC power supply PCB blown?
YES: Remove the cause of the fuse, and replace the fuse.
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