Canon PC980 Service Manual - Page 330

CHAPTER 11 TROUBLESHOOTING 8 E210 Cause Lens home position sensor (PS2) DC controller PCB Step 1 2 Checks Does the lens move when the power is turned on? Is the lens home position sensor (PS2) normal? (For instructions on how to check the photointerrupers, see p. 1147.) YES/NO NO NO YES Action See "The lens fails to move." Check the wiring from J109 on the DC controller PCB to PS2; if normal, replace PS2. Replace the DC controller PCB. 9 E220 Cause Composite power supply PCB DC controller PCB Step 1 2 Checks Does the scanning lamp turn on when the Copy Start key is pressed? Replace the composite power supply PCB. Is the problem corrected? YES/NO NO YES Action See "The scanning lamp fails to turn on." End. NO Replace the DC controller PCB. 10 E240 Cause Wiring Composite power supply PCB DC controller PCB Step 1 2 Checks Is the wiring from J203 and J204 on the composite power supply PCB and J103 and J104, respectively, on the DC controller PCB normal? Replace the composite power supply PCB. Is the problem corrected? YES/NO NO YES Action Correct the connection and the wiring of the connectors. End. NO Replace the DC controller PCB. 11 E261 Cause Power supply frequency Composite power supply PCB Step 1 Checks Turn off and then on the power switch. Is the problem corrected? YES/NO YES NO Action End. However, if 'E261' occurs frequently, advise the user to use a frequency stabilizer. Replace the composite power supply PCB. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-65