Brother HL-4000CN Service Manual page 328

A B
2.8.7 ADC and environment sensing
1
MCU AND HVPS PWB DOUBLE
PL15.1 PLUG
J24 P2361 1
4
YEL YEL
+5VDC
(CH1.1)
2 3
YEL YEL
DC COM
(CH1.1)
2
DOUBLE
PLUG
CONTROL
LOGIC
J13 LED ON P1361 1
16
YEL YEL
DC COM
13 4
YEL YEL
+5VDC
(CH1.1)
14 3
YEL YEL
DC COM
3
(CH1.1)
DOUBLE
PLUG
J140 P141
4
13 1 3
YEL YEL
+5VDC
(CH1.1)
11 3 1
YEL YEL
DC COM
(CH1.1)
5
6
C D
HUM TEMP
SENSOR
PL4.2
J2361 J231 1 J231 J2361 3
4 2
YEL YEL YEL YEL
2 3 4 1
YEL YEL YEL YEL
ADC SENSOR
ASSY
PL5.1
J1361 J136 J136 J1361
5
1 5 1
YEL YEL YEL YEL
2
4 2 4
YEL YEL YEL YEL
3
3 A
YEL YEL
WASTE TONER DOUBLE
SENSOR PLUG
PL5.1
J142 J141
2 2
YEL YEL
B
J141 J142
1
YEL YEL
ADC
3
YEL YEL
VI-31
E F
MCU AND HVPS PWB
PL15.1
DOUBLE
PLUG
HUMI
P2361 J24
CONTROL
2 3
LOGIC
YEL YEL
TEMP
4 1
YEL YEL
DOUBLE
PLUG
P1361 ADC VOUT J13
5 12
YEL YEL
ADC MONITOR
2 15
YEL YEL
+3.3VDC
WASTE TONER FULL
SENSED(H) +3.3VDC J140
P141
2 12
YEL YEL
A
B
2.8 XEROGRAPHICS
G H J
2.8.8
1
HUMI SIGNAL
2.8.8
1
TEMP SIGNAL
2.8.8
ADC SENSOR
1
SENSED SIGNEL
WASTE TONER FULL 2.8.8
1
SENSED SIGNAL
1
Imaginary Line