CHAPTER 14 TROUBLESHOOTING
14-74
COPYRIGHT © 1999 CANON INC.
CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
15
E191 (The serial communication between DC controller PCB and
composite power supply PCB has a fault.)
Cause
Connector
Harness
DC controller
PCB, Composite
power supply
PCB
Action
End.
Correct the connection.
Replace the harness.
Replace the DC
controller PCB and the
composite power supply
PCB.
Step
1
2
3
Yes/No
YES
NO
NO
YES
Check
Turn off and then on the power.
Is the connection of J103 on the
DC controller PCB normal? Is the
connection of J209 on the
composite power supply normal?
Is there continuity on the harness
between DC controller PCB and
composite power supply PCB?
•
J103-A1 to J209-A12
•
J103-A3 to J209-A10
•
J103-A6 to J209-A17
•
J103-A7 to J209-A16
Содержание GP335
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