Kyocera TASKalfa 2551ci, Service Manual

Page: 540 / 756

2NP
2-3-33
Connector Pin Signal I/O Voltage Description
YC3
1 SC_CLK I
0/3.3 V DC (pulse) Scanner clock signal
Connected to
main PWB 2 SC_SO O
0/3.3 V DC (pulse) Serial communication data signal
3 SC_SI I
0/3.3 V DC (pulse) Serial communication data signal
4 SC_BSY I
0/3.3 V DC Scanner busy signal
5 SC_HLDN I
0/3.3 V DC Scanner hold signal
6 SC_DIR I
0/3.3 V DC Scanner communication direction signal
7 SC_IRN I
0/3.3 V DC Scanner interrupt signal
8 GND(SPARE) -
- Ground
YC4
1 GND -
- Ground
Connected to
main PWB 2 HTPDN O
0/3.3 V DC Control signal
3 LOCKN O
0/3.3 V DC Lock signal
4 GND -
- Ground
5 TX0N O
0/3.3 V DC (pulse) Transmission data signal
6 TX0P O
0/3.3 V DC (pulse) Transmission data signal
7 GND -
- Ground
YC5
1 SMOT AP O
0/24 V DC (pulse) ISUM drive control signal
Connected to
scanner
motor
2 SMOT BP O
0/24 V DC (pulse) ISUM drive control signal
3 SMOT AN O
0/24 V DC (pulse) ISUM drive control signal
4 SMOT BN O
0/24 V DC (pulse) ISUM drive control signal
YC6
1 +5V O
5 V DC 5 V DC power output to LEDPWB
Connected to
LED PWB 2 FAIL I
0/3.3 V DC Error signal
3 SDA I/O
0/3.3 V DC Data signal
4 SCL O
0/3.3 V DC (pulse) Clock signal
5 VSET O
Analog Analog voltage
6 SGND -
- Ground
7 PGND -
- Ground
8 PWM O
0/3.3 V DC PWM signal
9 POW O
0/3.3 V DC LED: On/Off
10 +24V1 O
24 V DC 24 V DC power output to LEDPWB
11 +24V1 O
24 V DC 24 V DC power output to LEDPWB
YC7
1 +24V1 I
24 V DC 24 V DC power input from EPWB
Connected to
engine PWB 2 GND -
- Ground
3 GND -
- Not used
4 GND -
- Ground
5 +24V2 I
24 V DC 24 V DC power input from EPWB
6 +24V2 -
- Not used