2LK/2LN/2LM/2LC
2-3-55
YC7
1 SCAN4 O 0/3.3 V DC (pulse) Scan signal 4
Connected to
operation
PWB 2
2 KEY5 I 0/3.3 V DC (pulse) Operation panel key scan return sig-
nal 5
3 KEY6 I 0/3.3 V DC (pulse) Operation panel key scan return sig-
nal 6
4 KEY7 I 0/3.3 V DC (pulse) Operation panel key scan return sig-
nal 7
5 SCAN0 O 0/3.3 V DC (pulse) Scan signal 0
6 SCAN1 O 0/3.3 V DC (pulse) Scan signal 1
7 SCAN2 O 0/3.3 V DC (pulse) Scan signal 2
8 SCAN3 O 0/3.3 V DC (pulse) Scan signal 3
9 LED2 O 0/3.3 V DC (pulse) Operation panel LED display drive
signal 2
10 LED3 O 0/3.3 V DC (pulse) Operation panel LED display drive
signal 3
11 LED4 O 0/3.3 V DC (pulse) Operation panel LED display drive
signal 4
12 GND - - Ground
YC8
1 PROCESSING_L
ED
O 0/3.3 V DC Processing LED control signal
Connected to
operation
PWB 3
2 MEMORY LED O 0/3.3 V DC Memory LED control signal
3 ATTENTION_LED O 0/3.3 V DC Attention LED control signal
4 GND - - Ground
YC11
1 VO2 O Analog Speaker sound signal (+)
Connected to
speaker
2 VO1 O Analog Speaker sound signal (-)
YC14
1 LED_A O 0/3.3 V DC LED control signal
Connected to
LCD
2 NC - - Not used
3 LED_C I 0/3.3 V DC LED control signal
4 NC - - Not used
Connector Pin Signal I/O Voltage Description
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