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CONNECTOR PIN DESCRIPTIONS
CN30 Sub Fusing Fan
Pin No.
Signal Name
1
FANPWR
2
24VGND
3
RIPFNERR
CN31 (on ECB)/CN1 (on Option Paper Feeder Unit)
Pin No.
Signal Name
1
GND
2
SIOCS1
3
SCLK
4
SIOCS2
5
GND
6
SDI
7
SDO
8
24VGND
9
+5V
10
+24VC
11
NRST
12
+24VC
13
+5VA
14
24VGND
15
ACFNON1
16
ACFSMNA1
17
SLP_CST_1
18
ACFSMNB1
19
ACFSMNA2
20
ACFSMNB2
CN32 (on ECB)/CN2503 (on Power Supply Board)
Pin No.
CN32
CN2503
1
9
2
8
3
7
4
6
5
5
6
4
7
3
8
2
9
1
G081/G092
+24V
Ground
Sub Fusing Fan Error
Description
Ground
Option Feeder 1 Chip Select
Option Feeder Clock
Option Feeder 2 Chip Select
Ground
Option Feeder Input Data
Option Feeder Output Data
Ground
+5V
+24V
Option Feeder Reset
+24V
+5V
Ground
Option Feeder 1 Non
Option Feeder 1 Motor Clock A
Option Cassette Non
Option Feeder 1 Motor Clock B
Option Feeder 2 Motor Clock A
Option Feeder 2 Motor Clock B
Signal Name
NCSAD
A/D Converter Chip Select
SCLKAD
A/D Converter Clock
SDOAD
A/D Converter Input Data
SDIAD
A/D Converter Output Data
DZCROSS
Zero Cross
IHON
IH ON
IHPOWER
+24V
VIN100V
AC Line Voltage Detect
GND
Ground
Description
Description
6-76
In/Out
---
---
In
In/Out
CN1-E
CN1-L
---
---
Out
In
Out
In
Out
In
---
---
In
Out
Out
In
---
---
---
---
---
---
Out
In
---
---
---
---
---
---
Out
In
Out
In
In
Out
Out
In
Out
In
Out
In
In/Out
CN32
CN2503
Out
In
Out
In
Out
In
In
Out
In
Out
Out
In
---
---
In
Out
---
---
SM
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Troubleshooting
