Standby Power - Brother HL-4000CN Service Manual

A B
2.1.1 AC power on and DC distribution
1
LVPS
PL15.1
HARNESS ASSY AC SW
PL15.1
MAIN
LOW VOLTAGE
SWITCH
GENERATION
J161 1
+24VDC
BLK
2
2
WHT
RETURN
ESS PWB MCU AND +5VDC
PL16.1
HVPS PWB
3
PL15.1
P/J 14
CONTROL
ZN
LOGIC J23
2
RETURN
A5
1
+3.3VDC
+3.3VDC
4
RETURN
J167 2
ZN SLEEP MODE
1
B3
5
6
C D E
DRIVE PWB
PL15.1
I/L
SWITCH
35
DC COM
ALL
J163 J60 1
1 17
18
ALL
2 2 19
20
ALL
J165 J61 8
1 24
2 7
ALL
3 6 23
ALL
4 5 22
21
14
15
DC COM
J164 +3.3VDC
1
BRN
DC COM
2
VIO
+5VDC
3
GRY
DC COM
4
VIO
VI-5
F G
MCU AND HVPS PWB
PL15.1
DI-7
INTERLOCK OPEN CONTROL
J41 (L)+3.3VDC J11 6 LOGIC
DOUBLE
PLUG
J21 P210 B12
24 2
YEL YEL
ALL
23 25 A2
YEL YEL
22 1 B13
YEL YEL
ALL
21 26 A1
YEL YEL
ALL
17
ALL
18 3 B11
ALL
19 4 B10
20
J42 J12 17
16
2.3.1
J311 1
BRN
2.3.1
2
VIO
2.3.1
3
GRY
2.3.1
4
VIO

2.1 Standby Power

H J
1
2.1.2
INTERLOCK OPEN
SIGNAL
FEEDER PWB
CONNECTOR
PL17.4
J210 P810 A13 J810 J81 25
B2 A2
YEL YEL YEL YEL
ALL
A12 B2 B12 2
YEL YEL YEL YEL
B1 A14 A1 26
YEL YEL YEL YEL
ALL
A13 B1 B13 1
YEL YEL YEL YEL
ALL
B3 A12 A3 24
ALL
B4 A11 A4 23
1
Imaginary Line