Kenwood NX-5800, Service Manual

Page: 26 / 150

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