Kenwood NXR-901 Service Manual page 149

CN960 CN920
1 1
DC8 DC8
TX UNIT
X56-315 C/3 TX UNIT
GND GND
X56-315 B/3
50MPU 50MPU
STB STB
SR_oE SR_oE
SR_CLK SR_CLK
SR_DATA SR_DATA
LED 1 LED 1
GND GND
10 10
LED 10 LED 10
RX UNIT
X55-312
CN42 36 1 CN57
GND GND
GND GND
WP WP
D_GND
D_GND
E2PRoM_SDA E2PRoM_SDA
CoNT_5.0V
CoNT_5.0V
E2PRoM_SCL
E2PRoM_SCL
D_GND D_GND
AD_CS AD_CS
iF_BW_SW iF_BW_SW
AD_DAT_WRiTE AD_DAT_WRiTE
NC(iF_NW_SW) NC(iF_NW_SW)
CN45 AD_CLK AD_CLK
20.0MHz REF_SIG
GND
GND
AD_DAT_READ AD_DAT_READ
NC NC
CoNT_5.0V
CoNT_5.0V
PLL_LoCK_DET PLL_LoCK_DET
CN43 AGC_RSSi AGC_RSSi
RX_IF_VN
PLL2_EN PLL2_EN
FM_RSSi FM_RSSi
NC
NC
GND GND
CN68
PLL_PWR_SAVE PLL_PWR_SAVE
LEVEL_MONITOR
RX_AUDio RX_AUDio
SiF_DAT SiF_DAT
GND
GND
SiF_CLK SiF_CLK
DA_EN DA_EN
RX ANT
PLL1_EN PLL1_EN
CN5
VCo_BAND_SW VCo_BAND_SW
CN44 DDS_EN DDS_EN
3
B RX_PoWER_SAVE RX_PoWER_SAVE
NC NC
B
GND
GND
1
E
GND GND
1 36
CN4
4
SB
SB
1
E
RX_IF_VN
9 6
5 1
PC CONTROL
TEST/SPKR (PANEL ViEW)
FINAL UNIT
X45-387 D/4 SPG
SPI SPO AO5
3 6 9
CN923 CN905 12 15
1 1 SB GND RSI
VOLUME_IN AO2 AO4
VOLUME_IN 2 5 8
11 14
33MPU 33MPU SB GND RD AO1 AO3
1 4 7
10 13
GND GND J901
1 NC
33AUD 33AUD
SB
GND
SB SB
PTT_TXD_SCM
SCM_EN SCM_EN MiG
MIC
GND GND HOOK_RXD_SCM
INT SP
8
SCM_EN
PTT_TXD_SCM PTT_TXD_SCM
HooK_RXD_SCM
HOOK_RXD_SCM
MiG MiG
11
11
MIC MIC
CONTROL UNIT1
X53-413
CONTROL UNIT2
X53-414
CN23 CN25
CN27
FINAL UNIT
+
FINAL UNIT
X45-387 C/4
DC
X45-387 B/4 -
CN28
CN26
CN30 CN29 CN24
E B
CONTROL I/O (PANEL VIEW)
OPTION (OCXO)
KXK-3 M3
CN56 CN804
1 36
GND
GND
GND GND
PAG PAG
GND GND
CoNT_5.0V CoNT_5.0V
D_GND
D_GND
CoNT_5.0V CoNT_5.0V
D_GND D_GND
SDA SDA
D_GND D_GND
SCK SCK
TEMP_PRT TEMP_PRT
ANT_SW ANT_SW
VER VER
VR_EN VR_EN
440_EN 440_EN
132_EN
132_EN
440_CE 440_CE
132_CE 132_CE
LDT LDT
2DA_EN 2DA_EN
3DA_EN 3DA_EN
2DA_CE 2DA_CE
SR_oE
SR_oE
8AD_EN 8AD_EN
SR_EN
SR_EN
SDi1 SDi1
SDo0 SDo0
SCLK1 SCLK1
SCLK0 SCLK0
SDo1 SDo1
GND GND
MoD MoD
WP WP
GND GND
GND GND
1
36
TX UNIT
X56-315 A/3
CN805
CN400
1 36
GND GND
GND GND
REF_SW2 REF_SW2
WP WP
REF_SW
REF_SW
oX_SCL
oX_SCL
EXT_EXiST EXT_EXiST
oX_SDA
oX_SDA
REF_EXiST REF_EXiST
iMP_H_L iMP_H_L
REF_iN_oUT REF_iN_oUT
GND GND
oX_SDi2
oX_SDi2
GND GND
oCXo_VR_EN oCXo_VR_EN
GND
GND
oCXo_oN oCXo_oN
GND GND
oCXo_CURR oCXo_CURR
GND
GND
oCXo_EXiST oCXo_EXiST
GND GND
VCXo_DA_EN VCXo_DA_EN
GND GND
REF_LDT REF_LDT
GND
GND
PLL_19_EN PLL_19_EN
GND GND
PLL_19_CE PLL_19_CE
GND GND
oX_SDo2
oX_SDo2
GND GND
oX_SCLK2 oX_SCLK2
33MPU 33MPU
GND GND
GND GND
36
1
REF2(20.0MHz)
20.0MHz REF SIG
NXR-901
APPENDIX 2 (INTERCONNECTION DIAGRAM)
FINAL UNIT
X45-387 A/4
CN806 CN20
36 1
GND GND
GND GND
NC(FAN_CURR2) NC(FAN_CURR2)
CN22
GND GND TX ANT
PA_CURR
PA_CURR
GND GND
FAN_CURR FAN_CURR
GND GND
FWD_PWR FWD_PWR
GND GND
CN8
RFL_PWR
RFL_PWR
2
GND GND FAN 1 M
1
PA_BiAS PA_BiAS
GND GND
PWR_CONT PWR_CONT
GND GND
FAN_CONT FAN_CONT
GND GND
FAN_CONT2 FAN_CONT2
GND GND
TEMP_RST TEMP_RST
GND GND
ANT_SW ANT_SW
GND GND
TEMP_PRT TEMP_PRT
D_GND
D_GND
CONT_5.0V CONT_5.0V
D_GND D_GND
SCK SCK
D_GND D_GND
SDA SDA
D_GND D_GND
CN21
GND GND
E
WP
WP
B
GND GND CN2
GND GND
1 36
CN802 CN1
TX SIGNAL
CN801
1
E
B
3
B
REF_IN(10MHz)
CN408
REF_OUT(10MHz)
CN403