Canon Vizcam 1000, Service Manual

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COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Yes/No
NO
NO
YES
33 E700
Cause
Connector,
Wiring
Wiring
DC controller
PCB
Step
1
2
Checks
Are the connection and wiring of the
following connectors normal?
J209 on the image processor PCB
J308 on the DC controller PCB
Set the meter to the 30VDC range,
and measure the voltage between
J301-1 (+; 5 V) and J301-2 (–; GND)
on the DC controller PCB. Is it about
5 V?
Action
Re-connect it.
Check the wiring from
J301 to the DC power
supply 1.
Replace the DC controller
PCB.
34 E800
Cause
Malfunction
J2 (poor connec-
tion)
Power switch
(SW1)
DC controller
PCB
Step
1
2
3
Checks
Turn OFF and ON the power switch.
Is the problem corrected?
Is the connection of the relay con-
nector J2 on the power switch (SW1)
secure?
Set the meter to the
×
1K
Ω
range.
Disconnect the relay connector J2,
and connect the probes of the meter
to the following terminals of the
connector (J2M) on the power switch
side. Is the reading of the meter
about 400
Ω
?
• between J2M-1 and J2M-2
• between J2M-3 and J2M-4
Yes/No
YES
NO
NO
YES
Action
End.
Connect it securely.
Replace the power switch
(SW1).
Check the wiring and
electrical continuity from
the DC controller PCB to
the power switch (SW1);
if normal, replace the DC
controller PCB.