Kenwood NX-3220 E, Service Manual

Page: 24 / 204

1-24 (No.RA053<Rev.001>)
2.5.3 Display unit (XC1-209K-XX B/2)
5 DB7 I/O LCD Data Bus 7
6 DB6 I/O LCD Data Bus 6
7 DB5 I/O LCD Data Bus 5
8 DB4 I/O LCD Data Bus 4
9 DB3 I/O LCD Data Bus 3
10 DB2 I/O LCD Data Bus 2
11 DB1 I/O LCD Data Bus 1
12 DB0 I/O LCD Data Bus 0
13 /RST O LCD reset signal
14 R/W O LCD write signal
15 E O LCD read signal
16 A0 O Data/Command control signal
17 /CS0 O LCD CS signal
18 VSS - GND
19 VDDI O LCD I/O Power Supply (DC 1.8V output)
20 VDDA O LCD Analog Power Supply
(DC 3.2V output)
21 VB0+ - LCD bias voltage.connect a Cap.
to VB0-
22 VB1+ - LCD bias voltage.connect a Cap.
to VB1-
23 VB1- - LCD bias voltage.connect a Cap.
to VB1+
24 VB0- - LCD bias voltage.connect a Cap.
to VB0+
25 VLCD O Main LCD power supply.
CN202
1 GND - GND
2 GND - GND
3 LBC_B O Light Bar Blue Control
4 LBC_R O Light Bar Red Control
5 LBC_G O Light Bar Green Control
6 LED_R O LED Blue control
7 LED_B O LED Red control
8 LED_G O LED Green congrol
9 KEYO0 O Key matrix output
10 KEYO1 O Key matrix output
11 KEYO2 O Key matrix output
12 KEYO3 O Key matrix output
13 /KEYI0 I Key matrix input
14 /KEYI1 I Key matrix input
15 /KEYI2 I Key matrix input
16 /KEYI3 I Key matrix input
17 /KEYI4 I Key matrix input
18 50A O DC 5.0V output
19 50A O DC 5.0V output
20 MIC I Main MIC input
Pin No. Name I/O Function
21 ME - MIC GND
22 GND - GND
23 GND - GND
24 LCD_BLC O LCD backlight control
25 LCD_DB7 I/O LCD Data Bus 7
26 LCD_DB6 I/O LCD Data Bus 6
27 LCD_DB5 I/O LCD Data Bus 5
28 LCD_DB4 I/O LCD Data Bus 4
29 LCD_DB3 I/O LCD Data Bus 3
30 LCD_DB2 I/O LCD Data Bus 2
31 LCD_DB1 I/O LCD Data Bus 1
32 LCD_DB0 I/O LCD Data Bus 0
33 LCD_/
RST O LCD reset signal
34 WR0_R/W O LCD write siganl
35 WR1_E O LCD read signal
36 LCD_A0 O Data/Command control signal
37 LCD_/CS O LCD CS signal
38 LCD_VSS - GND
39 18M O DC 1.8V output
40 32LCD O DC 3.2V output
41 32LCD O DC 3.2V output
Pin No. Name I/O Function
CN301
1 /EMG I Emergency input
2 GND - GND
3 /SIDE2 I Side 2 input
4 /SIDE1 I Side 1 input
5 /PTT I PTT input
6 NC - No connection
Pin No. Name I/O Function