Epson Stylus Color 640 Service Manual page 163

EPSON Stylus Color 440/640/740
A.1.1.1 Connector Pin Assignment
(Stylus Color 440 and Stylus Color 640)
Tables in this section provide connector pin assignments of the
C206MAIN-B, C255MAIN and C256MAIN, the main boards equipped
with Stylus Color 440 and Stylus Color 640.
Information contained in this section only applies to
Stylus Color 440 and Stylus Color 640.
Pin assignments for all connectors but CN8 (Printhead)
are common. Therefore they are combined in the same
tables. As for CN8 (printhead), separate tables are
provided as shown below.


Table A-7: CN8 for C206MAIN-B, C255MAIN


Table A-8: CN8 for C256MAIN
If you need information on Stylus Color 740, go to
Section A.1.2.1.
Table A-1.
Connector Summary of C206MAIN-B/C255MAIN/C256MAIN
Connector Function
CN1 Parallel I/F connector
CN2 Serial I/F connector
CN3 To Control panel
CN4 To PE sensor
CN5 To HP sensor
CN6 To CR motor
CN7 To PF motor
CN8 To Printhead
CN10 To Power supply board
CN11 To ASF sensor
Chapter 7 Appendix
Table to refer to
Chapter 1/Table 1-10
Chapter 1/Table 1-16
Table A-2
Table A-3
Table A-4
Table A-5
Table A-6
Table A-7
Table A-9
Table A-10
Table A-2. Connector CN3
Pin Signal Name I/O
1 LED0 Out
2 GND ----
3 LED1 Out
4 GND ----
5 LED2 Out
6 +5V ----
7 +5V ----
8 LED4 Out
9 SW1 In
10 PSC In
11 SW0 In
12 SW2 In
Table A-3. Connector CN4
Pin Signal Name I/O
1 PE In
2 GND ---
3 PEV ---
Table A-4. Connector CN5
Pin Signal Name I/O
1 HP In
2 GND ---
3 HPV ---
Revision A
Function
LED drive signal (0)
Ground
LED drive signal (1)
Ground
LED drive signal (2)
Logic power supply
Logic power supply
LED drive signal (4)
Panel switch input (1)
Power on/off switch
Panel switch on/off (0)
Panel switch on/off (2)
Function
Sensor detect signal
Ground
Sensor power supply (+5V)
Function
Sensor detect signal
Ground
Sensor power supply(+5V)
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