2JB/2JC
2-3-22
Connector Pin No. Signal I/O Voltage Description
YC1 1
N.C
-- Not used
Connected
to the right
operation
unit PWB
2 LAMPOFF I 0/5 V DC LCD back light: On/Off
3 +24V I 24 V DC 24 V DC power output to OPWB-R
4PGND -- Ground
5SGND -- Ground
6 PH_LED_1 I 0/5 V DC (pulse) LED lighting signal 1
7 PH_LED_2 I 0/5 V DC (pulse) LED lighting signal 2
8 PH_KEY_1 O 0/5 V DC Power key: On/Off
9 PH_LED_3 I 0/5 V DC (pulse) LED lighting signal 3
10 DIG_KEY_1 O 0/5 V DC (pulse) Operation panel key scan return signal 1
11 DIG_KEY_2 O 0/5 V DC (pulse) Operation panel key scan return signal 2
12 DIG_KEY_3 O 0/5 V DC (pulse) Operation panel key scan return signal 3
13 DIG_KEY_4 O 0/5 V DC (pulse) Operation panel key scan return signal 4
14 DIG_KEY_5 O 0/5 V DC (pulse) Operation panel key scan return signal 5
15 SCAN1 I 0/5 V DC (pulse) Scan signal 1
16 SCAN2 I 0/5 V DC (pulse) Scan signal 2
17 SCAN3 I 0/5 V DC (pulse) Scan signal 3
18 SCAN4 I 0/5 V DC (pulse) Scan signal 4
19 DIG_LED_1 I 0/5 V DC (pulse) Operation panel indicator LED drive signal 1
20 DIG_LED_2 I 0/5 V DC (pulse) Operation panel indicator LED drive signal 2
YC2 1 HOT O 515 V AC Power output to LCD back light
Connected
to the back
light
2 GND - - Ground
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