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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-34 T
E803
0000 The 24V output from the composite main power supply PCB is absent for 1
sec or more.
Main cause The wiring is faulty (short circuit, open circuit). The composite power sup-
ply PCB is faulty. The DC controller PCB is faulty.
Making Corrections
1. Connectors
Are the connectors J204 on the main power supply PCB and the connector
J300 on the DC controller PCB connected securely?
NO: Connect the connectors securely.
2. Main power supply PCB
Is 24 V supplied by the main power supply PCB (J204) to the DC controller
PCB (J300)?
(J204-5 <-> J300-5: OVU3, J204-6 <-> J300-6: OVU3,
J204-7 <-> J300-7: 24VU3, J204-8 <-> J300-8: 24VU3)
NO: Replace the main power supply PCB.
YES: Replace the DC controller PCB.