Kenwood NX-5400 Service Manual page 20

Pin No. Name I/O
10 GND - GND
11 ENC2 I Rotary switch input
12 ENC3 I Rotary switch input
13 CNTSW I Lever switch input
14 GND - GND
15 GND - GND
16 ME - MIC GND
17 GND - GND
18 INTM_S I Internal MIC (SUB)
19 INTM_M I Internal MIC (MAIN)
20 ME - MIC GND
1 /Side0 I Side 0 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
1 LEDK3 I LCD backlight (Cathode)
2 LEDK2 I LCD backlight (Cathode)
3 LEDK1 I LCD backlight (Cathode)
4 LEDA O LCD backlight (Anode)
5 VSSA - GND
6 VSSA - GND
7 VCC O 3.0V output
8 VCC O 3.0V output
9 DC O Data/Command control signal
10 /CS O LCD CS signal
11 /RESET O LCD reset signal
12 /RD O LCD read signal
13 /WR O LCD write siganl
14 IM0 O System interface select
15 BD15 I/O LCD Data Bus 15
16 BD14 I/O LCD Data Bus 14
17 BD13 I/O LCD Data Bus 13
18 BD12 I/O LCD Data Bus 12
19 BD11 I/O LCD Data Bus 11
20 BD10 I/O LCD Data Bus 10
21 BD9 I/O LCD Data Bus 9
22 BD8 I/O LCD Data Bus 8
23 BD7 I/O LCD Data Bus 7
24 BD6 I/O LCD Data Bus 6
25 BD5 I/O LCD Data Bus 5
26 BD4 I/O LCD Data Bus 4
27 BD3 I/O LCD Data Bus 3
1-20 (No.RA016<Rev.001>)
Function
CN8
CN9
Pin No. Name I/O
28 BD2 I/O LCD Data Bus 2
29 BD1 I/O LCD Data Bus 1
30 BD0 I/O LCD Data Bus 0
31 CABC I Backlight control signal
32 IOVCC O 1.8V output
33 IOVCC O 1.8V output
34 VSSD - GND
35 VSSD - GND
1 GND - GND
2 /KEYI0 I Key matrix input
3 GND - GND
4 /KEYI1 I Key matrix input
5 GND - GND
6 /KEYI2 I Key matrix input
7 KEY_BLC O Key backlight output
8 /KEYI3 I Key matrix input
9 KEY_BLC O Key backlight output
10 /KEYI4 I Key matrix input
11 KEYO3 O Key matrix output
12 GND - GND
13 KEYO2 O Key matrix output
14 GND - GND
15 KEYO1 O Key matrix output
16 GND - GND
17 KEYO0 O Key matrix output
18 GND - GND
19 GND - GND
20 GND - GND
CN11 (for production)
1~20 - - -
1 SMIC I External MIC input
2 RXD I/O Serial data input/USB DM
3 TXD I/O Serial data output/USB DP
4 5V O 5V power supply output
5 E - GND
6 OPT I MIC identification
7 PF I Programmable function key input
8 /PTT I PTT input
9 ME - MIC GND
10 EMC I External MIC input/USB VBUS
11 /MSW I EXT/INT MIC switch input
12 SP- O BTL output for external speaker -
13 SP+ O BTL output for external speaker +
14 SSW I EXT/INT speaker switch input
Function
CN10
CN12