Appendix 1 (Block Diagram) - Kenwood NXR-901 Service Manual

CONTROL UNIT
X53-413
Over
D24
current
SMD185F-2
Protection
Ao1~5
IC22
BU4094BCFV
SR_CLK,SR_DATA
SR_oE,STB
50MPU
SR_CLK
50MPU
TA
SR_oE,STB1
IC1
BU4094BCFV
SR_CLK,SR_oE,STB
STB_L
SR_CLK_C
CC2
SR_DATA_C
TX_SR_oE
TX_VR_EN
STB1_L
TX_SR_EN
PAG_SW_L
IC36
TC74VHCT541AK
34
GP490GU
KEY1~5
SR_DATA
PWR_ST_R
oCXo_ST_G
oCXo_SR_R
CN1
33MPU
33AUD
VoLUME_iN
CN1
D25
MINISMDC020
Over
current
SB
Protection
IC50
TC7SH08FU-F
PTT_AM16C PTT_TXD_SCM
ANi_KEY
Q25
RT1N441M-T111
TX_ANT_SW AUX_iN OPTION
(ANI)
IC40
TC7SH126FU-F
HooK_RXD_SCM HooK_RXD_SCM
AUDio
BLoCK
CN1 SCLK0,SDo0
SR_oE,SR_EN
VR_EN
Ai3
CN58
IC39
TC7SH125FU-F
CoNT_5.0V
AUDio MoD
BLoCK
SDA,SCL,WP
TEMP_PRT,ANT_SW
440_EN,440_CE
132_EN,132_CE
2DA_EN,2DA_CE
3DA_EN,8AD_EN,SDo1
SDi1,SCLK1
VER,LDT
NXR-901
CN3
DC8
CN921
DC8
50MPU
STB1,CLK,oE
KEY1~5
SR_DATA
PWR_ST_R
oCXo_ST_G
oCXo_SR_R
VoLUME_iN
33MPU
33AUD
SB
PTT_TXD_SCM
HooK_RXD_SCM
MiC
MiC
CN56
PAG
X56-315 A/3
CN804

APPENDIX 1 (BLOCK DIAGRAM)

TX UNIT
X56-315 B/3
IC920
TC7SET126FU-F
STB1
IC922
TC7SET126FU-F
SR_CLK
IC921
TC7SET126FU-F
SR_oE
SR DATA
CN920 S920~S925
IC923
Q920~Q922
S70-0502-05
BU4094BCFV
UMG1N
IC923
SW
LED1,LED10
CN920
D920~D924
IC924 Q923~Q926
B30-2265-05
BU4094BCFV
UMG1N
SW
D925~D932
IC925
Q927~Q930
B30-2171-05
BU4094BCFV
UMG1N
SW
IC926
NJM2732V
D933
HSM88AS-E
Q931
2SC4116(Y)F
D934
HSM88AS-E
Q932
2SA1586(Y)F
CN920 CN960
DC8 DC8
50MPU 50MPU
STB,SR_CLK
STB
SR_oE
BU4094BCFV
SR_CLK
SR_oE
LED1,LED10
LED1,LED10
SR DATA SR DATA
IC923
CN923 CN905 VR902
VoLUME_iN
VoLUME_iN
33MPU 33MPU
33AUD
33AUD
SB
SB
PTT_TXD_SCM PTT_TXD_SCM
HooK_RXD_SCM
HooK_RXD_SCM
MiC
FINAL UNIT
X45-387
TX UNIT
X56-315 C/3
D960
IC960
Q960~Q963
PSA05-11SRWA
UMG1N
SW
IC961
Q964~Q967
BU4094BCFV
UMG1N
SW
Q968
UMG1N
SW
IC962
Q969~Q972
BU4094BCFV
UMG1N
SW
D961
PSA05-11SRWA
IC963
BU4094BCFV
SW
Q973~Q976
UMG1N
J901
SB
MiC
D/4