Brother HL-3450CN Service Manual page 121

CHAPTER 4 STRUCTURE OF SYSTEM COMPONENTS
5) DCN1: MCTL PWB - IOD1 PWB (50 pins)
Pin No.
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
6) ECN2: IOD1 PWB - IOD2 PWB (10 pins)
Pin No.
10
Signal
1 I/OAD2
3 I/OAD1
5 I/OAD0
7 I/ODATA3
9 I/ODATA2
I/ODATA1
I/ODATA0
LEDON-N
DMRDY-N
I/ODATA4 (REVI1)
PKCLL2ON-P
AC_DCON-N
PKCLL1ON-P
ELON-P
PBSEN-N
HPSEN-N
CTFANON-P
HTFANON-P
+5v-1R
SGND
SGND
SGND
+5v-1
+5v-1
+5v-1D
Signal
1 +24v-1
2 +24v-1
3 +24v-1
4 PGND
5 PGND
6 PGND
7 +5v-1
8 SGND
9 SGND
+5v-D
Pin No. Signal
2 DMON-N
4 DCOFF1-P
6 DMCLK
8 ACVON-N
10 CHVON-N
12 PWMON-N
14 CBVPWM-N
16 DVB (MC) PWM-N
18 DBV (KY) PWM-N
20 FCBVPWM-N
22 THVRON-N
24 THVPWM-N
26 THV-I
28 TH2
30 TH1
32 OILLES-P
34 FUTEMP
36 HON-N
38 ACOFF-P
40 ACSYNC-N
42 +24
44 PGND
46 PGND
48 +24v-1
50 +24v-1
7) DCN4: IOD1 - Paper Empty Sensor
IOD1 - Paper Feeding Sensor
IOD1 - Drum Encoder Sensor
IOD1 - OHP Sensor
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
4-68
Signal
+5v-D
HPSEN - N
SGND
+5v-D
PT1 - N
SGND
+5v-D
PEU-P
SGND
+5v-D
OHPSENU
SGND
SGND