System Connection Diagram - Epson DFX-9000 Service Manual

Serial impact dot matrix printer
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EPSON DFX-9000

7.1 System connection diagram

The primary components of the printer are connected as shown below.
Table 7-1. Connector summary
Connector
Board
No.
ROM BOARD
CN1284
(WD04A*)
CNRS232C
CNUSB
CNTYPEB
CNSEN1
CNSEN2
CNOP
CNPW
CNLOGPW
CNSPHS
CNSPM
CNINLK
CNFHD1
CNFHD2
CNRHD1
CNRHD2
CNHD3
CNLF
POWER UNIT
ACIN
(KA0040)
CNPW
Control Panel
CNOP
(WDP04A*)
Appendix
Pin
Description
38
Parallel I/F
25
Serial I/F
6
USB I/F
36
Type-B I/F
28
SENSOR BOARD UNIT
26
SENSOR BOARD UNIT
10
Control Panel
8
POWER UNIT (+42 V/+37 V)
4
POWER UNIT (+5 V)
7
SP MOTOR hole IC
3
SP MOTOR
4
INLK SW
22
Carrier PCB
(Front PRINT HEAD L, R)
22
(Rear PRINT HEAD L, R)
22
22
22
Carrier PCB (Sensor)
6
LF MOTOR
3
AC SW/INLET SW
12
ROM BOARD
10
ROM BOARD
System connection diagram
ROM BOARD
Parallel-I/F
CN1284
CNFHD1
CNFHD2
Serial-I/F
CNRS232C
CNRHD1
USB-I/F
CNUSB
CNRHD2
Type-B-I/F
CNTYPEB
CNHD3
SENSOR
BOARD
CNSPHS
UNIT
CNSPM
CNSEN1
CNSEN1
CNLF
CNSEN2
CNSEN2
CNINLK
(Motors, Fans,
CNLOGPW
CNPW
CNOP
Sensors)
POWER UNIT
CNPW
CNOP
Control Panel
ACIN
AC
Figure 7-1. Cable Connections
Revision B
Printer Mechanism
CARRIER UNIT
PRINT HEAD
Carrier PCB (Sensor)
SP MOTOR
LF MOTOR
Interlock Switch
280

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