Canon FY8-13EX-000, NP6218 service manual DC power supply is absent, 10-71, Connector, Pin No

CHAPTER 10 TROUBLESHOOTING

Cause	Step	Checks	Results	Action
Connector	10	Is electrical continuity present	NO	Check the connector
(J211, J302,		between J211-1 on the composite		(J302) on the DC
J309)		power supply PCB and J309-1 on		controller PCB; if
		the DC controller PCB?		normal, replace the DC
				controller PCB.
Control panel	11	Replace the control panel.	YES	End.
DC controller			NO	Replace the DC
PCB				controller PCB.

17. DC power supply is absent.

Cause	Step			Checks			Results	Action
AC power	1	Is AC power supply present					NO	See “AC power supply is
supply		between the following terminals?						absent.”
		Composite Power Supply PCB
		J2-1 (white) and J2-3 (black)
		(J2 is the 3-pin connector on the
		power supply cord mount.)
Wiring, DC load	2	Turn off the power switch, and					YES	Turn off the power
		disconnect all the following						switch, and connect one
		connectors.						of the disconnected
		Composite Power Supply PCB						connectors; then, turn on
		J206, J210						the power switch.
		Set the meter to the 20V DC						Repeat the same on all
		range, and turn on the power						connectors to find out
		switch; is the voltage between the						the connector which
		following terminals normal?						activates the protection
								circuit; check the wiring
		Connector	Pin No.		Output	Remarksr		from that connector to
		J206	1		34V	to main		the DC loads.
			2		GND	motor
						driver PCB
		J210	1		24V	DC con
			2		GND	troller PCB
			3		5V
			4		GND
			5		34V
			6		GND
Fuse		Is the fuse of the composite					YES	Replace the fuse.
		power supply PCB blown?
Composite							NO	Replace the composite
power supply								power supply.
PCB

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-71