Block Diagram; Nx-800/800H (K,K2): Tx-Rx Unit (X57-8900-Xx, Xc1-0990-10) - Kenwood NX-800 Service Manual

NX-800/800H
NX-800/800H (K,K2): TX-RX UNIT (X57-8900-XX, XC1-0990-10) (A/2)
CN401
DCin
(13.6V)
F401
GND
CN402
DC SW
Q404
MTM981400BF
Detect /BINT
IC401
XC6108C23CM-G
Protect
D401
DZ2J180(M)
Q401
LTC014EEBFS8
SBC
DCDC
IC405
Converter LT1616ES6-PBF
3.3V AVR
IC402
XC6204B332P-G
3.3V AVR
IC408
XC6204B332M-G
SBC_2
DC SW
Q412
2SA1955A-F
D408
1SS301F
1.5V AVR
IC409
XC6205B152P-G
CN403
/IGN
1
Q403
2
LTC014TEBFS8
SCTAM1 33M
SCBSY
SCRXD
SCTXD
/SCRST,/SCREQ,SCBCK,SCMIS0
/SCWKUP,BER_CLK,BER_DATA
/SCBFS,/BFSX2
IC509
TC7WT125FUF
BER_CLK
BUFF
BER_DATA
34

BLOCK DIAGRAM

+B
SB
8V AVR
IC403
NJM78M08FA-ZB
DC SW
Q407
12A02CH
TXC
SBC_2 DCDC
Converter
IC410
XC9101D09AK-G
5V AVR
IC404
TA7805F-NQ
50M
33M
33A
Q416
SSM6L05FU-F
DC SW 33A_2
50MC DC SW SCTAM1
Q405
2SA1955A-F
33M /BINT
SBC_2
DC SW 33BU
Q411
2SA1955A-F
CN405
/RST
15M
Buck UP Battery
RESET /RST
IC506
XC6119C29AN-G
IC705(1/2) Q702
TC75W51FK(F) 2SC4617(Q)
SW BPF AMP
Q701
SSM3K15TE(F)
Main_CLK
33M 15M Main_CLK
IC502
DSP
/BER_EN
33M
IC501
FLASH ROM
33BU
IC503
SRAM
/RST
80C
TCXO_MOD
BUFF
80T
LMC7101BIM5
150C
50C
DC SW 50R
Q409
12A02CH
RXC
3.3V AVR 33C
IC406
TK71733S
3.3V AVR 33GPS
IC407
XC6204B332M-G
33C
SW
Q201 LTA014EEBFE8
Q202 LTC044EEBFS8
W_/N
D703 IC705(2/2)
RB706F-40 TC75W51FK(F)
DET ASQDET
BUFF
VCTCXO
BUFF 18.432MHz
IC508
SM5023CNDH-G
BSHIFT
X502
L77-3015-05
SCBSY
/SYMTIM,FSDET,/DWUP,/DINT
/MCCSRCN,/MCCSXCN,MCDOCN.MCDICN
/MCCSAF,MCDOAF,MCDIAF
MCSCKAF
IC511
TC7SH08FU-F
HD2
/PCS_RF
TC7SH08FU-F
IC505 MCSCKCN
BCLKX0
BCLKR0
A[0-20],D[0-15],/RD./WR
/CS0,/CS2,/CS3,/HRDY,/WP
/FRST,/DRST,/HINT,/HDS2
I2CCK.I2CDT
33BU
IC504
RTC
RV5C386A
32.768kHz
L77-1802-05
33C IC1
LM73CIMKX-0
I2CCK TEMP
I2CDT SENSOR
33C
X1
VCTCXO
BUFF
19.2MHz
IC2 Q11
2SK1215-E(E)
SCK1,SDO1,/PCS_RF
PLD
50R
x3 BPF
Q203
2SC5636
2nd Local:57.6MHz
CF201
(Wide)
D201 D202
DAN235E DAN235E
CF CF
SW SW
CF202
(Narrow)
W_/N SW
Q212
EMD9
33M 15M Main_CLK /RST
RFAGC,ASSIST,DSW
/T_R,W_/N,W_/V,/H_L
SCK1,SDO1
CV,THP,RSSI,ASQDET
VAGC,PLD,MPL,BLVL
ASQAPC
IC510
MCU
/PCS
RXAF
MIC
/RINT
32K MOD
TONESW,AMT,STSW,BEEP,TONE,/PRST
MM,MM2,INAMT,/SCSW,RTS0,PBSHIFT
TXD[0-3],IFC,TXC,RXC,SBC
OPT10SEL,/EVCS,SCK0,SDO0
/OVRB,/IGN,/PSW,/
CTS0,RXD[0-3]
/INT25P
X501
150C
Q1
2SC5383-T111
Ripple
FILTER
ASSIST
BUFF
33C 50C
IC4
LMC7101BIM5
IC3
PLL
SKY72310-362
LOOP
FILTER
IC5(1/2)
TC75W51FK(F)
CV
IC5(2/2)
TC75W51FK(F)
VCO_MOD
Fin
50C
IF IC
IC202
TK10931VTL-G
CD
CD201
450k
IC703(1/2) IC703(2/2) IC712(8/8)
TC75W51FK(F) TC75W51FK(F) M62364FP-F
LPF LPF DAC
APC
/EVCS,SCK0,SDO0
AI IC710
TC7W53FK(F) OPT10SEL
TONE
VREF
OPT9
STSW
IC711(2/2)
TC75W51FK(F)
IC701 IC707
TC75S51FE(F) TC7W53FK(F)
LPF
SUM
/SCSW
AMT
RXEO RXEI
BEEP
DTI
IC706(1/2) IC706(2/2)
TC75W51FK(F) TC75W51FK(F) IC708
TC7W53FK(F)
LPF
SUM
TXI
/SCSW
IC702(2/2) IC702(1/2) IC709(1/2)
TC75W51FK(F) TC75W51FK(F) TC75W51FK(F)
LPF LPF
SUM
OPT[1-8]
OPT11
CN595
26pin Option Board
2SK
IC203(1
TC75W5
IC203(2
TC75W5
IC
TC7W
TX
IC7
M62
/EVCS,