NEC NC1600C - PJKEY PWB (PWC-4692 A)

CONNECTION DIAGRAMS
“Confidential, Do Not Duplicate without written authorization from NEC.”
POIF Connect to CPU PWB
1
2
3 I2C CLK
4 I2C Data
5
6
7
8
9
10
11 KEY matrix (KEYIN1)
12 KEY matrix (KEYIN0)
13 KEY matrix (KEYIN3)
14 KEY matrix (KEYIN2)
15 KEY matrix (KEYOUT0)
16 NC
17 KEY matrix (KEYOUT2)
18 KEY matrix (KEYOUT1)
19 KEY matrix (KEYOUT4)
20 KEY matrix (KEYOUT3)
21 Status LED (Red) CTL (L : Light)
22 Status LED (Green) CTL (L : Light)
23 Power LED (Red) CTL (L : Light)
24 Power LED (Green) CTL (L : Light)
25
26
27
28
29 LCD CTL (B6)
30 LCD CTL (B7)
31 LCD CTL (B4)
32 LCD CTL (B5)
33 LCD CTL (E)
34 Detect Backlight SW (L : ON H : OFF)
35 LCD CTL (RS)
36 LCD CTL (RXW)
37
38
39 Reset (3.3V constant)
40 IR (3.3V pulse)
12-13
PJKEY PWB (PWC-4692A)
POCL Connect to LCD module
1 GND for LCD module
2 5V Standby for LCD module
3 LCD VLC (GND)
4 LCD CTL (RS)
5 LCD CTL (RXW)
6 LCD CTL (E)
7NC
8NC
9NC
10 NC
11 LCD CTL (B4)
12 LCD CTL (B5)
13 LCD CTL (B6)
14 LCD CTL (B7)
15 LCD CTL (Backlight LED) (L : OFF H : ON)
16 GND for LCD (Backlight LED) module
POL1 Connect to LIGHT1 PWB
1 POWER for LED (L : OFF H : ON)
2 GND for LED
GND for PJKEY PWB
POL2 Connect to LIGHT2 PWB
1 POWER for LED (L : OFF H : ON)
2 GND for LED
5V Standby for PJKEY PWB
3.3V Standby for PJKEY PWB
GND for PJKEY PWB
GND for PJKEY PWB
5V Standby for PJKEY PWB
GND for PJKEY PWB