Fuji Xerox DocuCentre SC2020 Service Manual page 742

7-4
A B
1.2 DC POWER GENERATION (1 OF 2)
1
2
LVPS
PL18.3
DC POWER
GENERATION
1
10.2
STBY
J501
3
+24VDC
4
TO
+5VDC
STBY
+24VDC
(1.3 D3)
RETURN
1
4
・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.
・Over-voltage Protection
5
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.
Output Over-voltage
+5VDC +6~+9VDC
+24VDC +26.7~32VDC
6
C D
ESS PWB
PL18.2
+5VDC
TO
+3.3VDC
F5
J5C
+5VDC
1
GRY
DC COM
2
VIO
E F
+3.3VDC
SLEEP
DEEP SLEEP +3.3VDC
ON/
SIGNAL
OFF
SLEEP
+5VDC
ON/
OFF
F34 SLEEP
F34
+5VDC
+5VDC
DC COM
G H
ALL
SLEEP
J3C J418
+3.3VDC
4
BLU
ALL
DC COM
3
BLU
ALL
ALL
SLEEP
+5VDC
2
BLU
ALL
DC COM
1
BLU
ALL
7.3 BSD
Chain1 Standby Power
J
DRIVE PWB
PL18.2
ALL
F1 +3.3VDC
1
ALL
DC COM
2
ALL
F2 +5VDC
3
ALL
DC COM
4
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