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SECTION 10
BLOCK DIAGRAM
VCC
AFO
SP
AF
SW
IC8
LA4425A
Q7
DTC363EK
EXT SP
+8V
+5V
SHIFT
SW
HFSW
AMUT
VCA
VCA
IC7
M5282FP
Q6
DTC114EU
Q515
DTA144EU
IC3
TA75W558FU
Q5
2SC4116
N/W
CTRL
DISC
AF OUT
NWC
Q501,Q502,Q510 DTC144EU
R8V
MCF
+8V
N/W
SW
N/W
SW
N/W
SW
FI4
SFPC455E-TC01
FI3
SFPC455H
Q61 2SC4116
X2
CDBC455CX16-TC
IC2a
TA75S588F
FM IC
IC1
MC3372SVM
X1
CR-574
Q4
2SK302
FI1
FL-264
D502
DAN202U
D501
DAN202U
BPF
BPF
R8V
TUNE
/NWC
Q22 DTC144YU
Q27 DTA144EU
Q3
2SC4226
Q1
3SK166
Q29 2SK880
Q2
3SK166
R8V 1st mixer
R8V
+18V
NWC
FOR
REV
MT8V
MT8V
HV
POW
DET
T8V
T8V
Q17
2SC5107
Q16
2SC3356
Q15
2SC4703
IC11
SC-1321 [L]
SC-1322 [M]
SC-1323 [H]
D4
UM9401F
D512
MA77
IC10
NJM2904V
VCC
400–520 MHz
HV
W4
APCV
PSET
POWER
SW
+18V
DC-DC
+18V
+12V
CTRL
IC18 TC7W04FU
Q44 2SK1069
D31 HSU88
D32 MA742
D33 MA8160
Q12 2SJ377
Q14 DTC144EU
D509 DAN202U
IC506 S-812C50AUA-C3E
Q508 2SK1829
Q509 DTC144EU
FVPP
+8V
MOD
VCO
RX
VCO
VRX
VTX
TX
+8V
Q20
2SC5110
Q19 2SC5110
Q24 DTC114YU
Q28 DTA144EU
Q21 2SC5110
D19, D20
1SV217
Q23 2SC5110
D21, D22 1SV217
D46 IT365
RSSI
NOISE
5 6 7 8
12
13
MIX
SPLATTER
+8V
N/W
SW
N/W
SW
N/W
SW
Q65 2SK1829
IC22
µ
PC5023GR-043-GJG
BEEP OUT
CDEC
Q62
DTC144EU
DMOD
IC502
TC7S66FU
IC503
TA75S01F
Q516
2SC4081
HPF
AMP
16
14
4
MIC
SW
PA
SW
MCON
PA
+5V
+5V
+5V
IC25 TC4W66FU
+5V
IC21b
TA75W01FU
MIC OUT
MIC IN
IC25 TC4W66FU
SIG OUT
AMOD
Q503
XP4601
PA AF
SW
VCC
DIM
HORN
GND
PAAF
GND
+5V
VCC
DIM
HORN
DIM
SW
HORN
SW
DISC
GND
IN
IC9B
TA75W558FU
J4
ACC CONNECTOR
Q45 DTC144EU
Q47 DTC144EU
Q8 DTC114EU
PASP
GND
PTT
DISC
EPTT
MOD
SW
MODS
DMOD
Q506
2SK1069
AMOD
CENC
/NWC
BEEP LINE
MIC
AFO
SP
DTMF
DTMF
D/A
15
11
21
9
PSET
VCA
IC5
M62363FP650C
2
1
4
10
14
+5V
+5V
+5V
N/W
SW
Q64 DTC144EU
IC21A
TA75W01FU
Q35
2SC4081R
NOIS
13
BEEP
3
22
Q9, Q10
2SC4081R
TCXO
+5V
UNLK
R8V
MT8V
T8V
12.6MHZ
PCK
PDA
PSTB
+18V
+8V
SPEED
UP
SW
Ref MOD
+5V
PLLT
THRM
TEMP
N/W
/NWC
IC12
MC145190F
Q18
2SC5110
Q25 DTC144EU
Q26 DTA114EU
IC13 TC4W66FU
Q30 FMS2A
Q31 FMW2
Q32
Q33
Q505
DTC144EU
X501
R8V
T8V
HV
VCC
CPU5V
VRX
TMUT
PWON
+8V
MT8V
+5V
CTRL
+5V
IC16
TA7808F
Q36 2SD1664
Q37 2SC4116
D27 DA204U
Q38 2SD1664
Q39 DTC114YU
Q514
D28 DA204U
Q40 2SD1664
Q41 2SC4116
D29 DA204U
FVPC
Q42 2SB1123
Q43 2SC4081
D30 1SS355
IC17
AN78L05M
OPV1
SCK
VTX
J6
XTXD, XRTS
XRXD, XCTS
VTX
TMUT, VRX
PWON, FVPC
VPP
CPU
C.P
NWC
IC20
HD64F3437F
[BIIS]only
HD64F3437F16 [OTHER]
DATA OPTION BUS
REG CTRL BUS
CTRL
DCK
DDA
DSTB
Ref MOD
CENC
HFSW, PASP
SP,HORN, PA
BEEP, MCON
EPTT, RSSI
CDEC, DIM
MODS
X502
EFOP3584E5
Q504
2SK1069
5V
REG
VCC
BACK
LIGHT
+8V
+5V
LED
CTRL
VCC
+5V
RESET
IC3 S-80842CLMC-B63-T2
Q1 2SC4081
D1 MA111
DS2-DS6 FY1112H
DS7,DS8, DS10, DS11 CL-170Y
DS13-DS16 CL-170Y
Q6-Q9 DTA143ZU
Q10, Q11 DTC114EC
IC5 AN8005M
SUB
IC2
HD6433640A33H
X1
CR-567
SWITCH
×
19
DS1
TSC0712A-03
LCD
DRIVER
IC1
SED1526FOA
FRONT UNIT
+5V
R26
AF VOL
CPU
CLONE
I/F
HANG
PTT
+8V
CLON
AFO
MIC
HANG
HANG
PTT
CLON
Microphone
AFV
DATA
I/F
IC4 TC7W04F
Q2, Q3 DTA114EU
D3 MA111
Q4, Q5 DTA114EU
D4 MA111
POWER SW
MIC
GND
AFO
SP
+8V
SQL
FTXD
FRXD
D2
MA111
I/F
IC19 S-80842CLMC-B63-T2
Q48 2SC4116
D36 1SS355
DTMF
ENCODE
DTMF
DATA
RES
IC501
LC73661M
IC26 TC7W04FU
IC505 BU4066BCFV
Q50 DATA114EU
Q51 DTC114EU
Q507 DTC144EU
D37 1SS355
SCK
SI
SO
CIRQ
CCS
MMUT
RMUT
AUX
BUSY
AFON
OPT1
OPT2
OPT3
OPV1
OPV2
OPV3
POSW
X4
9.8304MHz
PTTI
PTTO
SIGNALING OPTION BUS
D503
MA77
OPS1
OPS2
OPV2
OPV3
GND
OPT3
OPT2
OPT1
SIG OUT
BUSY
AUX
MIC IN
MIC OUT
PTT OUT
PTT IN
SI
SO
CIRQ
CCS
AFOUT
DISC
RMUT
BEEP OUT
AF ON
MMUT
VCC
CPU5V
GND
VCC CPU5V
COMMON LINE
LINE
RX LINE
TX LINE
DATA BUS LINE
VOLTAGE LINE
MC3372SVM
EEPROM
EEPROM
SHIFT
SW
IC1
IC27
CAT25C64SI
MAIN UNIT
RESET
CPU5V
+8V
POSW
LIMIT
AMP
LPF
BUFF
LCD
BUFF
BUFF
AF
AMP
AMP
LIMIT
AMP
BUFF
LPF
AF
MUTE
HPF
AMP
IF
AMP
BPF
BPF
BPF
BPF
LO
AMP
BUFF
RF
AMP
BPF
TX/RX
SW
LPF
LPF
LPF
PWR
AMP
APC
CTRL
BUFF
DRIVE
AMP
TX/RX
SW
LO
AMP
VCO
SW
BUFF
BUFF
BUFF
LOOP
FIL
VCO
SW
PLL
IC
BUFF
BUFF
BUFF
ATT
ATT
ATT
CONT
+8
REG
+5
REG
IC504
D51
OPTION CONNECTOR
D17 MA77
D18 MA77
IC2b
Q518
D513
DTC114EU
MA77
RSSI
10 - 1