Block Diagram - Kenwood NX-300S Service Manual

NX-300(S) NX-300(S)
Control unit (X53-4432-75)
IC101
Flash
Memory
Q415
EMD12
Q414
EMD12
+B
TV1
TV2
/EMG , /PTT , Side_1 , Side_2,Side_G , IFC ,
5RC , 5TC , /DSW , /APCSW,SBC , /T_R ,
ASSIST , SDO1 , SCK1 , PLD
86

BLOCK DIAGRAM

IC103
DSP
SRAM
IC102
/DRST,DCLK,/SYMTIM,/RSSITIM,
/DINT,/SWUP,FSDET,/HINT
MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,MCD1CN,
/MCCXCN,/MCD0CN,/MCCSRCN,MCSCKCN
D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/HDS2,/HRDY
TXD0
RXD0
RTS0
CTS0
DSR
/PTT
/UDET
RXD3
ENC1
ENC2
ENC3
ENC4
/BINT
/PSW
ASQDET
VOX
VOL
BATT
PFKEY
MM
SCSW
/AMT
STSW
EXAMT
INAMT
BEEP
TONESW
/MNDNU
5UC
DC SW
SBC
DC SW
33A
SBC
IC703
M62364FP-F (3/8,4/8)
DAC
RSSI , THP , VAGC , CV , S-DET
IC106
RTC
RV5C386A
I/O Expander
IC701
X101 32.768kHz
CN710 26pin Option Board
X102
18.432MHz
SM5023CNDH-G
IC107
VC
TCXO
33A 15M 33M
XC6109C29AN-G
ASQAPC
ASIC
IC108
RXAF
LED-G
LED-R
TONE
SDO0,SCK0
/EVCS
MIC
/RINT
32K
I2CCK,I2CSDA
TC75W51FK(F)(2/2)
MOD
/OINT
33M
IC105
RESET 33M
IF_DET
IC711 Q704
TC75W51FK(F)(2/2) KTC4075E(Y,GR)
BPF AMP
LPF LPF
IC702 IC702
TC75W51FK(F)(1/2) TC75W51FK(F)(2/2)
/SCSW
AMT
IC704
TC75S51FE(F)
LPF
IC707
TC7W53FK(F)
Q702
SSM3K15TE(F)
SW
TONESW
IC706 IC710
TC75S51FE(F) TC75W51FK(F)(1/2)
LPF SUM
IC705 IC705
TC75W51FK(F)(1/2)
LPF LPF
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