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OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
D. Protection Mechanisms for
the Power Supply Circuit
The composite power supply PCB is
equipped with an overcurrent detection circuit;
its protection mechanism turns ON to stop the
output if a short circuit occurs because of a
fault in the loads.
When the output is stopped, open the front
door to turn OFF the door switch, correct the
load, and turn ON the door switch and the
power switch to return the output.
Caution:
Be sure to disconnect the connector (J4) before
performing the above work.
Do not repeat resetting short-circuits; otherwise,
the built-in fuse (F2) can blow.
Note:
Replace the lithium battery only with the one
listed in the Parts Catalog. Use of different
battery may present a risk of fire or explosion.
The battery may present a fire or chemical burn
hazard if mistreated. Do not recharge, disas-
semble, or dispose of it in fire.
Keep the battery out of reach of children and
discard any used battery promptly.