Kenwood NEXEDGE NXR-901, Service Manual

Page: 27 / 198

NXR-901
27
Pin No. Name I/O Function
36 GND - Ground
CN21 (To X45-387 C/4 CN30)
1 E - Ground
Final unit (X45-3870-11) (C/4)
Pin No. Name I/O Function
CN11 (To X53-413 CN4)
1 E - Ground
2 - - No connect
3 SB O Power supply output
4 SB O Power supply output
CN12 (To X56-315 A/3 CN801)
1 E - Ground
2 SB O Power supply output
3 SB O Power supply output
CN15 (To X55-312 CN44)
1 E - Ground
2 SB O Power supply output
3 SB O Power supply output
Final unit (X45-3870-11) (D/4)
Pin No. Name I/O Function
CN905 (To X56-315 B/3 CN923)
1 VOLUME_IN O Volume control output for AF signal
2 33MPU I 3.3V constant voltage
3 GND - Ground
4 33AUD I 3.3V constant voltage
5 SB I Power supply input
6 SCM_EN - No connection
7 GND - Ground
8 PTT_TXD_SCM O PTT output
9 HOOK_RXD_SCM O Hook detection output
10 MIG - MIC ground
11 MIC O MIC signal output
Control unit (X53-4132-71)
Pin No. Name I/O Function
CN1 (To X53-414 CN401)
1 PTT_TXD_SCM - No connection
2 GND - Ground
3 LO_VOL_DET O Low voltage detection signal
4 NC - No connection
5 TD_SW I TD terminal input signal mute switch
Final unit (X45-3870-11) (A/4)
Pin No. Name I/O Function
CN1 (To X56-315 A/3 CN802)
1 TX SIGNAL I TX driver input signal (Coaxial)
CN2 (To X45-387 C/4 CN29)
1 SB I Power supply input
CN8
1 - O 5V supply output for FAN
2 - - Ground
CN20 (To X56-315 A/3 CN806)
1 GND - Ground
2 GND - Ground
3 NC - No connection
4 GND - Ground
5 PA_CURR O PA device current monitor
6 GND - Ground
7 FAN_CURR O FAN current monitor
8 GND - Ground
9 FWD_PWR O TX forward power detection
10 GND - Ground
11 RFL_PWR O TX refl ect power detection
12 GND - Ground
13 PA_BIAS I PA Vbias terminal control
14 GND - Ground
15 PWR_CONT I TX power control
16 GND - Ground
17 FAN_CONT I FAN1 control
18 GND - Ground
19 FAN_CONT2 I FAN2 control
20 GND - Ground
21 TEMP_RST - No connection
22 GND - Ground
23 ANT_SW I PA device’s DC switch control
24 GND - Ground
25 TEMP_PRT O High temperature detect
26 D_GND - Digital ground
27 CONT_5.0V I Switched 5V supply
28 D_GND - Digital ground
29 SCK I Clock input for EEPROM
30 D_GND - Digital ground
31 SDA I/O Data input/output for EEPROM
32 D_GND - Digital ground
33 GND - Ground
34 WP I Write protection input for EEPROM
35 GND - Ground
TERMINAL FUNCTION