Canon PC980 Service Manual - Page 328

CHAPTER 11 TROUBLESHOOTING 4 E002, E003 Cause Thermistor (TH1) Step 1 Checks Is the connection of J102 on the DC controller PCB and the wiring to the thermistor (TH1) normal? Heater, Fuse (FU2) 2 Is there electrical continuity between J207-1 and -2 on the fixing heater side? Thermistor (TH1) Composite power supply PCB DC controller PCB 3 Replace the fixing assembly upper unit. Is the problem corrected? 4 Replace the composite power supply PCB. Is the problem corrected? YES/NO NO NO YES Action Correct the connection of J102 on the DC controller PCB and the wiring to the thermistor (TH1). Check the wiring from the composite power supply PCB to the fixing heater; if normal, replace the fixing upper unit. End. YES End. NO Replace the DC controller PCB. 5 E010 Cause Wiring 1 Wiring 2 DC power supply Main motor (M1) DC controller PCB Step 1 2 3 4 Checks Are the connection of J205 on the composite power supply PCB and the wiring to the main motor (M1) normal? Is the wiring from J203 and J202 on the composite power supply PCB to J103 and J105, respectively, on the DC controller PCB normal? Turn on the power switch. Is the voltage between J901-1 (+) and -2 (-) on the main motor drive PCB about 24 V? Replace the main motor (M1). Is the problem corrected? YES/NO NO NO NO YES NO Action Correct the connection of J205 on the composite power supply PCB and the wiring to the main motor (M1). Correct the connection and wiring of the connectors. Check the wiring from the main motor driver PCB to the composite power supply PCB; if normal, see "DC power fails to turn on." End. Replace the DC controller PCB. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-63