Fuji Xerox DocuCentre SC2020 Service Manual page 743

A B
1.3 DC POWER GENERATION (2 OF 2)
LVPS
1
PL18.3
READY
POWER
1.1
ON SIGNAL
2
DC POWER
3
GENERATION
1
POWER ON
ACH LV
POWER
STBY
ON
+24VDC
POWER ON
ACN LV
(1.1 G2) ACN LV
4
POWER
ON
ACN LV
(1.1 G3)
RETURN
5
・Short Protection (Over-current Protection)
NOTE:
1
If +5VDC output is shorted, it drops. If +24V output is shorted,
all the outputs are made to stop.
To restore them, repair the short, power off, allow 15 sec,
and then power on.
6
7-5
C D
INTLK
INTLK ON
+5VDC (1.6 C3)
+24VDC
DC COM
STBY
+24VDC
・Over-voltage Protection
If one of the outputs reaches its listed voltage, all the outputs are
cut off. To restore them, power Output off, allow 15 sec, and then
power on.
E
10.2
INTLK
J501
+24VDC
6
ORN
ESS PWB
1.2
PL18.2
STBY
+24VDC J5C
5 3
ORN
DC COM
2 4
VIO
DC COM
3
VIO
Output Over-voltage
+5VDC +6~+9VDC
+24VDC +26.7~32VDC
F G
ALL
F1
+24VDC
+24V ON SLEEP
ALL
ON/
SIGNAL +24VDC
OFF
ALL
DC COM
H J
DRIVE PWB
PL18.2
INTLK
ALL
J400
+24VDC
1
F3 INTLK
ALL
F3
+24VDC
F4 INTLK
ALL
F4
+24VDC
ALL
DC COM
2
j0bs730103
Chain1 Standby Power
7.3 BSD