Epson Scan 2500 service manual Connector Pin Assignment

EPSON Stylus Scan 2500 Revision A

7.1.2 Connector Pin Assignment

Tables in this section provide connector pin assignment of the Stylus Scan 2500.

Signals of each connector on the B102 MAIN Board are listed below.

Table 7-2. Connector Pin Assignment-CN2

Pin No.	Signal Name	I/O	Function
1	GND	O	Ground
2	LD0	O
3	GND	O	Ground
4	LD1	O
5	LED0	O	LED drive signal (0)
6	LD2	O
7	LED1	O	LED drive signal (1)
8	LD3	O
9	LED2	O	LED drive signal (2)
10	LA0	O
11	LED3	O	LED drive signal (3)
12	LCS	O
13	LED4	O	LED drive signal (4)
14	LWE	O
15	+5V	O
16	LRD	O
17	+5V	O
18	LCLK	O
19	SW1	I	Panel switch input (1)
20	SW2	I	Panel switch input (2)
21	SW3	I	Panel switch input (3)
22	SW4	I	Panel switch input (4)
23	SW6	I	Panel switch input (6)
24	SW7	I	Panel switch input (7)
25	SW8	I	Panel switch input (8)
26	SW9	I	Panel switch input (9)
27	SW10	I	Panel switch input (10)

Table 7-2. Connector Pin Assignment-CN2 (cont.)

Pin No.	Signal Name	I/O	Function
28	SW11	I	Panel switch input (11)
29	SW12	I	Panel switch input (12)
30	SW5	I	Panel switch input (5)
31	SW13	I	Panel switch input (13)
32	SW14	I	Panel switch input (14)

Table 7-3. Connector Pin Assignment-CN4

Pin No.	Signal Name	I/O	Function
1	HP	I	Sensor detect signal
2	GND	O	Ground
3	HPV	O	Sensor power supply (+5V)

Table 7-4. Connector Pin Assignment-CN5

Pin No.	Signal Name	I/O	Function
1	PE	I	Sensor detect signal
2	GND	O	Ground
3	PEV	O	Sensor power supply (+5V)

Table 7-5. Connector Pin Assignment-CN6

Pin No.	Signal Name	I/O	Function
1	ASF	I	Sensor detect signal
2	GND	O	Ground
3	ASFV	O	Sensor power supply (+5V)

Table 7-6. Connector Pin Assignment-CN7

Pin No.	Signal Name	I/O	Function
1	CR-A	O	Phase drive signal (A)
2	CR-B	O	Phase drive signal (B)
3	CR-/A	O	Phase drive signal (/A)
4	CR-/B	O	Phase drive signal (/B)

Appendix Connector 143