80
TH-D72A/D72E
SCHEMATIC DIAGRAM
X57-784 (C/3) 7/8
AE
AF
AG
AH
AI
T:VHF:2.6V
T:UHF:3.0V
R:0V
T:3.7V
R: 0V
T:4.6V
R: 0V
T:4.4V
R: 0V
0.7V
2.9V
1.3V
2.8V
430TX_S
45RUB
APCSW
33RB
45RVB
APC&BPFB
45C
144TX_S
33CB
VTX
NE5500234
Q214
IC202
UPC3232TB
3
VCC
2
GND1
1
oUTPUT
6
GND3
5
GND2
4
INPUT
C247
470p
R232
270
R236
270
C243
470p
C250
0.01u
R245
10
k
R253
330
C257
470p
R248
10k
R247
47
C258
10p
R252
0
IC201
LMC7101BIM5
1
OUTPUT
2
V+
3
INPUT+
4
INPUT-
5
V-
IC203
LMC7101BIM5
1
OUTPUT
2
V+
3
INPUT+
4
INPUT-
5V
-
R216
0.1
R217
0.1
C229
1000p
2SK1830F
Q205
C227
470p
R221
100k
C232
470p
2SC4617(R)
Q207
R230
2.7k
C235
470p
C233
470p
C225
470p
C236
470p
R231
27k
C245
470p
R243
220k
C249
1000p
R251
470
C240
470p
R234
470k
D210
015AZ3.9F
C256
100p
C259
0.01u
C255
0.01u
R238
68k
D209 MA2S728
C244 470p
C201
1.5p
R201
22k
C204
33p
C205
470p
R205
1k
R204
100
R207
2.2k
R211
2.2k
C210
12p
R212
2.2k
C207
1000p
C206
1000p
R219
150
C223
1000p
C226
0.01u
L202
22n
L204
22n
R257
12
R215
2.2k
R256
12
R254
820
R258
820
2SC5488A-H
Q201
R202
10k
C214
22p
C218
18p
C212
10p
D205
HSC277
C254
470p
C260
470p
R233
18
L210
100n
L211
39n
L212
10n
L209
100n
Q209
SSM6L05FU-F
C241
1000p
R235
47k
C242
1000p
R237
100k
C237
1000p
C231
1000p
C251
1000p
C246
1000p
R242
47k
D202
HSC277
D201
HSC277
D204
HSC277
2SC5488A-H
Q204
R222
4.7k
R218
1k
C228
470p
R220
100
D203
D7
HSC277
D5
HSC277
R1
2.2k
C8
470p
R15
2.2k
R17
2.2k
C17
1000p
Q212
RN4902-F
C248
100p
SSM3J05FU-F
Q210
2SK1830F
Q211
L201
82n
C221
1000p
C222
1000p
C219
C216
10p
R224
100
L253
12n
C239
15p
R227
0
C230
10p
L226
12n
Q208
RN4902-F
C238
0.15u
L206
120n
C224
470p
L207
15n
C217
8p
C202
10p
R203
0
+B
+B
+B
VTX
144T
430T
45TX
2-71
0-01
1000P
E
K
C219
RF AMP
RF
SWITCH
RF
SWITCH
AMP
RF
SWITCH
AMP
REVERSE
PROTECTOR
VOLTAGE
OP AMP
DC SWITCH
RF
SWITCH
D5,D7
RF AMP
SWITCH
RF
D203
RF AMP
CURRENT
CONSTANT
RF
SWITCH
RF
SWITCH
IC201
+B
VTX
∗
OP AMP
X57-784X-XX (C/3)
NO
TH-D72A
TH-D72E
DC SWITCH
DC SWITCH
DC SWITCH
DC SWITCH
144T
430T
HSC277
TX-RX UNIT (X57-784X-XX) (C/3) : TX-RX SECTION