Kenwood NX-5800 Service Manual page 26

Ref.No Part Name
D14~16 LED
D20 Zener diode
D21 LED
D22 Diode
D23, 24 Zener diode
D25 Varistor
D26~32 Zener diode
2.6 TERMINAL FUNCTION
2.6.1 Main unit (XC1-0391-XX, XC1-0410-XX)
Pin No. Name I/O
CN4 (Ignition)
1 IGN
2 GND
CN731 (for production)
1~20 -
CN735 (to Module (BT/GPS) unit CN1)
1 GPS_PWR
2 GPS_ALM
3 GND
4 GND
5 GPS_ANT_SW
6 GPS_PA_EN
7 BT_SHUTDOWN O Shutdown signal output
8 WCLK
9 BCLK
10 BT_AUD_DI
11 BT_AUD_DO
12 RTS2
13 CTS2
14 G_RXD2
15 G_TXD2
16 BT_SW
17 GND
18 GND
19 54M
20 54M
CN749 (to Sub (Display) unit CN6)
1 NC (IGN)
2 NC
3 GND
4 54M
5 GND
1-26 (No.RA017<Rev.003>)
Description
LED
Overvoltage protection
LED
Overvoltage protection
Overvoltage protection
Surge protector
Overvoltage protection
Function
I Ignition sense input
- Ground
- -
I Antenna power supply detection
I Antenna open/short detection
- Ground
- Ground
O Enable signal for 33GPS
O GPS receiver part switching sig-
nal output
O Audio serial data bus word clock
output
O Audio serial data bus bit clock
output
I Audio signal input
O Audio signal output
O Serial data output
I Serial data input
I Serial data input
O Serial data output
O Enable signal for 33BT and 18BT
- Ground
- Ground
O 5.4V output
O 5.4V output
- No connection (Ignition sense in-
put)
- No connection
- Ground
O 5.4V output
- Ground
Pin No. Name I/O
6 GND
7 18M O 1.8V output
8 D[15] I/O LCD driver data output
9 D[14] I/O LCD driver data output
10 D[13] I/O LCD driver data output
11 D[12] I/O LCD driver data output
12 D[11] I/O LCD driver data output
13 D[10] I/O LCD driver data output
14 D[9] I/O LCD driver data output
15 D[8] I/O LCD driver data output
16 D[7] I/O LCD driver data output
17 D[6] I/O LCD driver data output
18 D[5] I/O LCD driver data output
19 D[4] I/O LCD driver data output
20 D[3] I/O LCD driver data output
21 D[2] I/O LCD driver data output
22 D[1] I/O LCD driver data output
23 D[0] I/O LCD driver data output
24 /CS_LCD O LCD driver chip-serect signal
25 DC O LCD driver data/command
26 /WR_LCD O LCD driver WR signal
27 /RD_LCD O LCD driver RD signal
28 PRST O LCD driver reset signal
29 /KEYINT
30 I2CCK O I2C serial clock
31 I2CDT I/O I2C serial data
32 GND
33 USB_D- I/O USB0 PHY data minus
34 USB_D+ I/O USB0 PHY data plus
35 GND
36 33M O 3.3V output
37 DM/KVL I/O MIC data detection
38 GND
39 RXD
40 TXD O Serial data output
41 /PTT
42 /PSW
43 AFO+ O AF signal output plus
44 AFO- O AF signal output minus
45 MIC
46 ME
47 R_SET2
48 R_SET1
49 R_SET0
50 GND
Function
- Ground
switch signal
I Key state change signal
- Ground
- Ground
- Ground
I Serial data input
I PTT input
I Detection signal input of power
switch
I MIC signal input
- MIC ground
I Radio setting signal 2
I Radio setting signal 1
I Radio setting signal 0
- Ground