MyBinding DC-545HC Service Manual page 128

Pro- Cause/Defective part
ce-
dure
11 Fan (suction)
12
13
14 Paper level sensor
15
16 Connections
17 Feed motor
18 Feed solenoid
19
20
21 Front Plate
22 Feed PCB unit
Items to be checked
Does it operate in HELP mode
(H-30)?
Is the connector for the fan
(suction) firmly plugged in?
Is the voltage measured with a
tester between CN2-3 (+) and
CN2-4 (GND) on the feed PCB
unit +24 V (DC) while the fan
(blower) is operating?
Is it normal when checked in
HELP mode (H-08)?
Is the voltage measured with a
tester between CN4-12 (+) and
CN4-13 (GND) on the feed
PCB unit +5 V (DC), is it 0 V
(DC) during light transmission?
Are the AF-100 and the DC-
545 firmly connected?
Is it normal when checked in
HELP mode (H-10)?
Does it operate when in HELP
mode (H-11)?
Is the voltage measured with a
tester between CN6-1 (+) and
CN6-2 (GND) on the main
PWB unit +24 V (DC) while the
feed solenoid is operating?
Is the press pressure too weak
when the feed solenoid is
operating?
Does it operate normally if you
open a gap between the Front
Plate (N4-A1190) and Plate
(N4-A1210)?
Is the trouble cleared by
replacing the feed PCB unit?
125
Chap.6
Result
Countermeasure
Yes Go to procedure 14.
No Plug the connector in firmly.
Yes Replace the fan (blower).
No Go to procedure 18.
Yes Go to procedure 16.
No Replace the sensor.
No Go to procedure 21.
No Connect them firmly.
No Replace the feed motor.
Yes Go to procedure 20.
Yes Replace the feed solenoid.
No Replace the main PWB unit.
Yes Adjust the press pressure.
Yes Finish
Yes Finish
No Check the wire bundles and the
connectors, and if there are not
problems, replace the main PWB
unit.
HELP mode H-08 \ see p.143
HELP mode H-10 \ see p.143
HELP mode H-11 \ see p.144
HELP mode H-30 \ see p.149
HELP mode H-31 \ see p.149
z Troubleshooting Guide