Kyocera TASKalfa 2551ci, Service Manual

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2NP
2-3-43
YC15
1 +5V6 I 5 V DC 5 V DC power input from MPWB
Connected to
main PWB 2 +5V6 I 5 V DC 5 V DC power input from MPWB
3 +5V6 I 5 V DC 5 V DC power input from MPWB
4 GND - - Ground
5 GND - - Ground
6 GND - - Ground
YC17
1 GND - - Ground
Connected to
main PWB 2 LCD_OFF I
0/3.3 V DC
Control signal
3 LOCKN I
0/3.3 V DC
Lock signal
4 GND - - Ground
5 TX0N I
0/3.3 V DC (pulse) Transmission data signal
6 TX0P I
0/3.3 V DC (pulse) Transmission data signal
7 GND - - Ground
YC20
1 VH O Analog LCD control signal
Connected to
LCD 2 3.3V2 O
0/3.3 V DC
3.3 V DC power output to LCD
3 3.3V2 O
0/3.3 V DC
3.3 V DC power output to LCD
4 CKG O
0/3.3 V DC (pulse) LCD clock signal
5 STVD I/O
0/3.3 V DC
LCD control signal
6 GND - - Ground
7 GND - - Ground
8 VM O
Analog
LCD control signal
9 REV O
0/3.3 V DC
LCD control signal
10 UD O
0/3.3 V DC
LCD control signal
11 STVU I/O
0/3.3 V DC
LCD control signal
12 VLS O
Analog
LCD control signal
13 VLS O
Analog
LCD control signal
14 GND - - Ground
15 GND - - Ground
16 DIO2 I/O
0/3.3 V DC
LCD control signal
17 DIO1 I/O
0/3.3 V DC
LCD control signal
18 SHL O
0/3.3 V DC
LCD control signal
19 LD O
0/3.3 V DC
LCD control signal
20 GND - - Ground
21 CKS O
0/3.3 V DC (pulse) LCD clock signal
22 GND - - Ground
23 V1 O
0/3.3 V DC
LCD control signal
Connector Pin Signal I/O Voltage Description