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SECTION 5
BLOCK DIAGRAM
FRONT UNIT
IC15
IC13B
MIC BOARD
LA4425A
MJM4558M
J1
MIC
CONNECTOR
Q11 2SJ144
Q10 DTC114EU
AUDIO VR
R1
R61
MIC LEVEL
IC20
TC4M53F
IC16A
NJM4558M
SQUELTCH
SQL
VR
SELCT
R2
MIC
AMP
R91
INT. SQL. ADJ
LED BOARD
DS1
POWER
+8 V
DS7
SP. MUTE
DS4
RESET
COR
DS5
SIMULATE
LED
SW
LOCAL
DS6
INHIBIT
Q5 UMD3
Q7,Q8,Q9 DTC114EU
BUSY
DS2
Q6 DTC114EU
TRANSMIT
DS3
TX
SW
T8
SP1
D17 1SS300
Q14 DTC114EU
SW BOARD
SP. MUTE
S1-4
D1–D16 MA6S121
S1-1
RESET
S1–S12
COR
MATRIX
S1-2
SIMULATE
SW
LOCAL
S1-3
INHIBIT
S1
POWER
SWITCH
IC5 TA31136F
NOISE
FILTER
IC13A
IC2B
IC12A
MJM4558M
MJM4558M
MJM4558M
DE
EMP
Q12 DTC114EU
Q13 2SJ144
MOD
MUTE
R47
R_MOD. SET
IC17B
IC17A
IC18B
IC18A
IC19B
NJM4558M
NJM4558M
NJM4558M
NJM4558M
NJM4558M
MIX
MIX
PRE
AMP
AMP
EMP
IC19A
NJM4558M
R35
R30
R83
LO OUT
DO OUT
MOD.
SET
ADJ.
SET
IC14B
NJM2073M
IC14A
NJM2073M
PTT
CONT.
CPU
IC1
µPD78213
IC21
TA75393F
IC7 TC74HC04
V.DET
IC8 S-80845ALUP
+13.8V
5 - 1
Q8
#03 FL-199
2SC2714
#04 FL-238
FM
DET
S OUT
X1
CR-473
R8V
X2
Q1 2SC4116
CDBC455X24
IC1 AN78L05M
D1 1SS355
FI2
RSSI
#03 CFZM455E10
#04 CFZM455G
RX UNIT
+9 V
N - DATA (RX)
D3 1SV270
R50
D2 1SV270
MOD_ADJ
TX UNIT
Q2 2SC5186
VCO
IC5A
Q13
IC5B
NJM4558M
2SJ144
NJM4558M
MOD
Q10 2SA1587
AGC
Q11 2SC4117
D6 MA8056
CHARGE
PUMP
VC08V
IC4
TA75S01F
D1 1SS355
REF
MOD
Q1 2SC4116
R38
R43
FREQ. ADJ
R_MOD. ADJ
IC16B
NJM4558M
R52
LI MOD. ADJ
N - DATA(TX)
ADDRESS
SELECT
PIO
IC6 TC74HC138
IC2
IC5 TC74HC374
µPD71055
RESET
ADDRESS
DECODER
+5V
D8/D9
Q3
D5/D7
Q7
1SV270
3SK184
1SV270
3SK184
IC6
CB424
D10 1SV270
Q6
Q5
D11 1SV270
2SC4226
2SC4226
Q4 2SC5186
R5V
VCO
IC2
AN8003M
X3
CR-608
CHARGE
PLL IC
IC3 MB15A02
PUMP
UNLOCK (R)
UNLOOK
DETECT
Q9 2SA1586
D13 1SS355
Q3
Q4
Q5
Q6
2SC4228
2SC4226
2SC3356
MRF9745
APCV
IC3
D5 1SS355
MB15A02
Q12 2SA1586
UNLOOK
PLL IC
DETECT
PLL5V
T8
UNLOCK(T)
Q8 2SB1132
IC1 AN78L05M
Q9 DTC114EU
TX
SW
X1
CR-608
IC2 AN8003M
+9V
TX CONTROL
EXT.PTT
IC10, IC11
µPD4049UBG
EXT. interface IN
Q3, Q4
DTC114EU
EXT. interface OUT
+5 V
S13.8V
+9V
+13.8V
IC9
AN78L05M
ROM
REG UNIT
IC4 NM27C256
+9
REG
F3
RGB 20 A
1
LOGIC UNIT
D1
DSA3A1
GROUNDING
TERMINAL
Q2
D3/D4
3SK166
1SV270
W1
RX ANT
CONNECTOR
IC4 TA75S01F
DC
AMP
Q10 2SA1587
Q11 2SC4117
D14 MA8056
PA UNIT
W6
TX ANT
CONNECTOR
IC1
M68703LA
RF
DET
D1/D2 MA742
APC
CTRL
IC3 TA75S01F
Q1 2SC4081
Q2 2SB1019
R16
RF-POWER ADJ
J10
5
EXT PTT
9
DO
+13.8V
4
LO
8
E
3
E
7
DI
2
LI
6
BUSY
DI
1
+13.8V
DO
J9
LO
19
E
37
+13.8V
18
E
LI
36
13.8V
17
NC
35
SP–
16
SP+
34
GND
15
EXT PTT
33
LI
14
E
32
E
13
LO
31
AUX1
12
NC
30
AUX2
11
NC
29
NC
10
E
28
NC
9
BUSY
27
E
8
TX EXT
26
S-METER
7
E
25
E
6
DI
24
E
+13.8V
5
DO
23
D0
4
STB
22
D1
3
A2
21
D2
2
A1
20
D3
IC1
1
A0
NJM7809
MF1
NOTE
2
+
COMMON
DC 13.8 V
–
TX
RX
P1
DATA
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