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SCHEMATIC DIAGRAM-1 (BASE C.B-1/3 SECTION)
Q Q
3 7 6 3 1 5 1 5 0
BASE C. B 1/3 (RF-1 SECTION)
L305
22uH
R314
100
BASE UNIT
ANTENNA
ANT1
C325
C324
0.001
0.01
L301
L306
1.2uH
KY392
1
4
LAL03
C322
2
0.01
TP1
3
5
6
7
R313
470K
BPF301
DPX43/49MHz
C319
5p
1
Q304
RX
2SC2714Y
RF-AMP
2
GR
3
ANT
L307
C320
R315
4
2.7uH
GT
1K
0.01
5
TX
T E
L
1 3 9 4 2 2 9 6 5 1 3
1A
TX_OUT
TO BASE C. B 2/3
(RF-2) 1A
TP2
w w w
.
BPF302
10.7MHz
CQ L10.7M52-A
R320
4.7K
C335
0.001
+
C334
2.2/50
38
37
36
+
C331
C333
10/50
0.1
VREF
39
C323
1ST(MIX-IN)
0.001
40
1ST MIX
2ND MIX
C332
0.1
VCC2
41
VCO-CONT
L308
42
KL322N
4
1
2
VCO1
5
3
C326
43
7
6
27p
RX VCO
VCO2
44
C328
0.47
C329
C327
C-RECT
0.1
0.01
45
+
R319
C330
10K
2.2/50
RX PLL
RX-OUT
46
R318
4.7K
R311
TP3
10K
TX-OUT
47
TX PLL
LO OSC
R312
C318
4.7K
0.047
GND2
48
C316
0.01
+
C317
2.2/50
1
2
3
C353
VCC1
2A
MOD2
TO BASE C. B 2/3
C308
(RF-2) 2A
4p
X301
AEL HC49U
10.24MHz
FB
3A
TO BASE C. B 2/3
(RF-2) 3A
C354
1
TP4
D301
IN5234B
5.2V
+
C379
R386
100/25
TO BASE C. B 2/3
4.7
BAND
5B
x
a o
y
i
TO BASE C. B 3/3
(MCU/INTERFACE)
1B-6B
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8
VCC1
L309
5M4A756N
4
3
2
BPF303
CQ LTW-33 4550
5
1
C339
10/50
R321
C337
27K
0.1
C336
C341
0.1
22p
C340
0.1
35
34
33
32
31
30
29
IF AMP
QUAR
RSSI
BATTERY
IC301
ALARM
IC TB31224F
LIMITER
DATA LATCH
COMP
EXPANDOR
CONTROL
Q
Q
3
7
6
3
C-MUTE
SPLATTER
4
5
6
7
8
9
10
C357
30p
270p
C356
220p
TP6
R341
27K
R342
TC301
56K
18p
C.Cap.
R343
C359
56K
0.1
SFR301
100K
C360
0.1
VCC1
MOD_AF
4A
(RF-2) 4A
R348
R344
12K
22K
Q305
MMBT3904
R345
BAND
470K
R350
CONTROL
6B
TX_DATA
100K
R346
u 1 6 3
22K
R349
100K
.
7
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9
2
4
9
TP5
C375
R357
0.001
10K
R323
6.8K
R353
51K
C374
C385
180p
180p
R355
R356
R352
6.8K
62K
C343
C342
100K
0.1
0.0047
28
27
26
25
R324
27K
LPF
D-COMP-IN
24
NOISE
FILTER
23
C345
DATA-OUT
0.01
RSSI
22
R326
82K
R327
100K
BAT-ALM
21
VCC1
RECEIVER
AMP
RO2
20
C351
0.1
E_MUTE
RO1
19
R328
C345
1
5
1
5
0
8
9
2
39K
0.001
RECE-IN
18
C347
R329
0.1
10K
EXP-OUT
17
PRE AMP
PRE-OUT
16
MIC AMP
R330
C348
27K
PRE-IN
330p
15
11
12
13
14
TP7
R340
+
C362
56K
100p
C361
C363
10/50
R337
0.1
10K
R336
C358
180K
0.0068 GND
R339
10K
m
c o
SIGNAL
: RX RF
: TX RF
: TX AUDIO
: RX AUDIO
: TX DATA
: TX DATA
8
2
9
9
R325
4.7K
7B
RX_DATA
R378
27K
LINE_OUT
8B
4
9
8
2
9
9
C352
R334
0.1
22K
9B
TX_AUDIO
TO BASE C. B 3/3
1D
(MCU/LINE INTERFACE) 1D
TX_AUDIO
: DTMF
: CONTROL
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