Brother HL-3450CN Service Manual page 117

CHAPTER 4 STRUCTURE OF SYSTEM COMPONENTS
(3) Connector Pin Assignment
BCN1
MoLex: 53313-1815
Pin # Signal Name Interface
1 +24V-1 +24V-1
3 FUCHK Sensor Signal of Fuser Unit Installation
5 ACVON-N AC Output ON Signal
7 CHVON-ON CHV Output ON Signal
9 CBVPWM-N CBV PCB Control Signal
11 DBVYMPWM- DBV PCB Control Signal
N
13 DBVCKPWM- CBV PCB Control Signal
N
15 FCBVPWM-N FCBV PCB Control Signal
17 NC NC
BCN2
MoLex: 53324-0410
Pin # Signal Name Interface
1 TH1 Thermistor1
2 TH2 Thermistor2
3 FUCHK Fuser Check
4 FUCHKGND GND
Pin # Signal Name Interface
2 PGND PGND
4 PGND PGND
6 PWMON-N PCB Control ON Signal
8 CHVERR CHV ERROR Sensor Signal
10 THVRON-N THV ON Signal
12 THVPWM-N THV PCB Control ON Signal
14 THV-I Transfer Voltage Select Signal
16 TH1 Thermistor Temperature Sensor Signal
18 TH2 Thermistor Temperature Sensor Signal
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