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10 - 1
SECTION 10. BLOCK
DIAGRAM
X3
Q4
2SC4116
PWR
AMP
IC3
RA30H4047M1 (25W)
TX
SW
LPF
BPF
CERAMIC
FI3
LTUCG450G
J4
DRIVE
PRE
Q9
2SC5006
LPF
BPF
CERAMIC
FI2
BPF
D10
HVC350B
SHIFT
SW
D60
IF
AMP
Q14
2SC4215
RLV
ADJ
D62
PWR
DET
D1
D11
PUSH1
KEYX6
PRE
AMP
IC1004
TA75S01F
X1
JTBM450CX24
SP
Q13
D16
:2SC4226
BPF
XTAL
FI5
FL-448
W/N
SW
Q13
BPF
D31
A/D
IC2002
AD7476ARTZ
BPF
CERAMIC
LTM450HW
FI1
AF
AMP
IC1009
LA4425A
W/N
SW
D2,D3
REF
X2
CP_3
CP4
AGC
Q1
AMP
IC1007
TA75S01F
X1
CR-912
CP_3
CP4
BPF
D37
HVC350B
D/A
SW
D17,D18
FIL
RIPPLE
Q17
2SC4116
AF
MUTE
Q1012
Q1008
D1007
MUTE
SW
Q6
AMP
IC5
NJM2711F
DS1-9
SML-311YT
BUFF
Q10
2SC5107
DRIVE
AMP
Q8
2SC3357
BPF
W/N
SW
D8,D9
Q1
VCO
SW
Q15
Q16 :XP1214
AMP
Q12
MT3S37T
FM
MOD
D18
1SV309
RF
AMP
Q2
BUFF
Q5
2SC4116
CP_3
CP4
TX/RX
SW
HVD142A
D14,D15
BUFF
Q11
2SC5107
PUSH1
POSW
ANT
SW
D3
D5
FIL
LOOP
Q19
3SK293
LCD
DS11
APC
AMP
IC2
TA75S01F
MIC
AMP
TA75S01F
MICI
PLL
IC
IC3
AK1541
D/A
SW
D13,D14
EEPROM
IC52
R1EX24512ASAS0A
TLV
ADJ
D64
BUFF
Q18
2SK880
LPF
Q14
D33
:2SC4226
CP_3
CP3
BPF
D19
HVC350B
LPF
BPF
XTAL
FI4 FL-442
ATT
+8
REG
IC1002
Q1013
Q1016
R8
REG
+3
REG
Q1017
Q1019
SW
POWER
Q1003
Q1001
+5
REG
Q1014
Q1015
+3
REG
IC1001
XC6408EN22PR
T8
REG
W2
BUFF
IC60
NJM13403V
VOL1
R89
VOL1
R89
VOL1
R89
VOL1
R89
LPF
IC60
NJM13403V
VOL1
R89
ALC
AMP
BUFF
IC60
NJM13403V
BUFF
IC60
NJM13403V
LIMIT
AMP
IC60
NJM13403V
HPF
IC63
NJM2783V
W/N SW
AMP
VOL1
R89
MOD
LINE
CTRL
RX VCO
ADS
from/to
(Mic Gain
(SERIAL)
D12
19.6608MHz
45.9MHz
to CPU(FRONT)
TX VCO
from CPU(FRONT)
COMMON LINE
CPU(FRONT)
POSW
Control)
F
D6,D68
LCK
AFVO
to CPU(FRONT)
RSSI
CLI CLO
(Analog)
TX LINE
from/to
K
450kHz
SCK
LSO
T2
from CPU(FRONT)
DATA LINE
CPU(FRONT)
PTT
I
(Digital)
SO
46.35MHz
SEG1-33
T1
ESCL
from RX AF
MIC
Ext.I/O 6
Explanatory notes
S1
PLST
COM1-4
303.65MHz-473.65MHz
ESDA
TMUT
AFO
to CPU(FRONT)
G
(EPTT)
CONTROL LINE
DIM
Q5
J1
NOIS
DISC
IC1
IC6
CTRL
RX LINE
FRONT UNIT
CPU
Ext.I/O 14
ACC
LIGT1
KR0-3,UP,DN
IC4
LCD
Ext.I/O 4
(SERIAL)
Q2
LINH
DRIVER
(EAFO)
Ext.I/O 10
Q1
LCS
MIC
MOD
LIGT2
F
(IGSW)
LIGT
AFON
JACK
from VOL IC
450kHz
to FM MOD(TX VCO)
SIG
AFVI
S2-S7
from VOL IC
DIF
Ext.I/O 7 (AFO)
to FM MOD
CTRL
RSSI
POWER SW
IC2007
from VOL IC
De-Emphasis
F
Ext.I/O 11
AF VR
8V
DSP
from CPU(FRONT)
Signaling
J6
NWC
R14
IF IC
from IF IC
IN
Decode
to ACC
NWC
450-520MHz
LVIN
EAFO
ADS
MCG0
(HORN)
8V
RLVA
AFO
VCON
to CPU(FRONT)
from CPU(FRONT)
RXC
MCG1
PGIO4
TLVA
CSFT
15.3MHz
to CPU
D8,D20
D4,D21
+3.3V
HV
+5V
VCC
VCC
D1008
RXC
VCC
TXC
8V
PWON
CPU3.3V
Q1011
8V
VCC
8V
R8V
Q1018,Q1021
T8V
8V
8V
CRES
DSP IC
PLL IC
from/to
BEEP
LVA
REF
VCON
CODEC
DMO
T2
SQIN
TX/RX
DAFO
MICI
DET
AFVO
T1
SW
BAL
MOD
LINEAR
IC1010
400-470MHz
RORES
SSO,SSK,DAST
350-400MHz