Protection Mechanisms Of The Power Supply Circuit - Canon NP6330 Service Manual

B. Protection Mechanisms of the Power Supply Circuit
The DC power supply PCB is equipped with an overcurrent protection circuit and an
over voltage protection circuit.
If an error, and as a result a short circuit, occurs in any of the loads, the protection
circuits will turn on to cut off the output of power.
The protection circuits can be reset by depriving the DC power supply PCB of AC
power for 1 min or more (by disconnecting the power plug). Be sure to remove the cause
of activation before turning on the power switch once again.
Note:
Repeated short circuiting and recovering of a load can cause the built-in fuse to
melt.
COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 CONTROLS AND EXTERNALS
7-5