Canon PC400 Service Manual - Page 145

Guide to the Troubleshooting Table - user guide

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Guide to the Troubleshooting Table You will find troubleshooting steps organized in tables which are modified versions of general flow charts. Study the following for an idea of how to consult them. EX.AC power is absent Cause Power plug Step Checks YES/NO Action 1 Is the power plug connected to NO Connect the power the power outlet? plug. Covers 2 Are the front door and the NO Close the door and delivery cover closed firmly? the cover. Power Supply 3 Is the specified voltage present NO The problem is not at the power outlet? of the machine. Advise the user. 4 Is the specified voltage present YES Go to step 6. between J1-1 and J1-2? (J1 is found near the power cord mount.) If you want to find out the cause (possible faulty part), see the column under "Cause." In the case of "AC power is absent," the power plug may be disconnected, the covers may not be closed firmly, or the main power supply is absent, If you want to find out the action to take or the steps to correct a specific problem, go through the steps in order. Answer YES or NO to the questions under "Checks," and take the action indicated accordingly. COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-1

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COPYRIGHT © 1998 CANON INC.
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Guide to the Troubleshooting Table
10-1
You will find troubleshooting steps organized in tables which are modified versions
of general flow charts. Study the following for an idea of how to consult them.
EX.AC power is absent
If you want to find out the cause (possible faulty part), see the column under
"Cause." In the case of "AC power is absent," the power plug may be disconnected,
the covers may not be closed firmly, or the main power supply is absent,
If you want to find out the action to take or the steps to correct a specific problem,
go through the steps in order. Answer YES or NO to the questions under "Checks,"
and take the action indicated accordingly.
Cause
Step
YES/NO
Checks
Action
Power plug
1
2
3
4
NO
NO
NO
YES
Is the power plug connected to
the power outlet?
Covers
Power Supply
Are the front door and the
delivery cover closed firmly?
Is the specified voltage present
at the power outlet?
Is the specified voltage present
between J1-1 and J1-2? (J1 is
found near the power cord
mount.)
Connect the power
plug.
Close the door and
the cover.
The problem is not
of
the
machine.
Advise the user.
Go to step 6.