3B1
2-2-10
Terminals (CN) Voltage Remarks
1-2 GND 5/0 V DC (pulse) _LEDON4 signal, input
1-3 GND 5/0 V DC (pulse) _LEDON3 signal, input
1-4 GND 5/0 V DC (pulse) _LEDON2 signal, input
1-5 GND 5/0 V DC (pulse) _LEDON1 signal, input
1-6 GND 5/0 V DC (pulse) _LEDON0 signal, input
1-7 GND 5/0 V DC (pulse) _SCAN4 signal, input
1-8 GND 5/0 V DC (pulse) _SCAN5 signal, input
1-9 GND 5/0 V DC (pulse) _SCAN6 signal, input
1-10 GND 5/0 V DC (pulse) _SCAN7 signal, input
1-11 GND 5/0 V DC (pulse) KEY_SENS7 signal, output
1-12 GND 5/0 V DC (pulse) KEY_SENS6 signal, output
1-13 GND 5/0 V DC (pulse) KEY_SENS5 signal, output
1-14 GND 5/0 V DC (pulse) KEY_SENS4 signal, output
1-15 GND 5/0 V DC (pulse) KEY_SENS3 signal, output
1-16 GND 5/0 V DC (pulse) KEY_SENS2 signal, output
1-17 GND 5/0 V DC (pulse) KEY_SENS1 signal, output
1-18 GND 5/0 V DC (pulse) KEY_SENS0 signal, output
K39
K38
K45
D7
D6
K51
K57
K37
K40
K46
2AW2401
K52
K58
K41
K47
K53
JP8
JP6
JP7
JP2
JP1
JP10
JP5
CN1
1
2
17
18
L30
JP4
JP3
JP9
JP11
K59
K42
K48
K54
K60
K43
K49
K55
K61
K44
K50
K56
K62
L31L32L33L34L35L36L37
L38
D8
D9
Figure 2-2-6 Fax operation unit PCB silk-screen diagram
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