Brother HL-4000CN - Fan Control

V
I-35
ABCDEFGHJ
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2
3
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5
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2.9 Fusing and Transportation
COOLING FANS
LVPS
PL15.1
MCU AND HVPS
PWB
PL15.1
MCU AND HVPS PWB
PL15.1
+3.3VDC
LVPS
PL15.1
CONTROL
LOGIC
2.9.3 Fan control
J12
1
30
DRIVE PWB
PL15.1
FAN
CONTROL
J42
30
1
YEL YEL
YEL YEL
J50
7
DC COM
9
DC COM
(CH1.1)
DOUBLE
PLUG
J137
3
P137
1
YEL YEL
FUSER FAN
PL1.1
1 3
YEL YEL
DOUBLE
PLUG
P137
2
J137
2
MOT
DRIVE
PWB
PL15.1
J50
8
J42
27
YEL YEL
J12
4
YEL YEL
FUSER FAN
ON(H) +24VDC
FUSER FAN
STOP
FUSER FAN FAIL
(H) +3.3VDC
FUSER FAN
LOW
+3.3VDC
18
19
FAN
CONTROL
13
12
YEL YEL
YEL YEL
J166
1
DC COM
3
DC COM
REAR FAN
PL15.1
J166
2
J165
7
MOT
J61
2 29
YEL YEL
2
YEL YEL
REAR FAN
ON(H) +24VDC
REAR FAN
STOP
REAR FAN FAIL
(H) +3.3VDC
REAR FAN
LOW
J61
1
3
J165
8
6
YEL YEL
YEL YEL
HEAT AIR
2.9.1
AIR
CONTROL
LOGIC
DO-13
(HIGH SPEED)
DO-14
(LOW SPEED)
DO-13
(HIGH SPEED)
DO-14
(LOW SPEED)
DI-31
DI-30
2.9.6
FUSER FAN
FAIL SIGNAL
2.9.6
REAR FAN
FAIL SIGNAL
1
1
Imaginary Line
1