Kenwood TH-D72A Service Manual page 80

AE
TH-D72A/D72E
+B
DC SWITCH
RN4902-F
Q208
Q209
DC SWITCH
SSM6L05FU-F
Q210
DC SWITCH
SSM3J05FU-F
Q211
2SK1830F
DC SWITCH
R204
100
2.9V
D201
R201
0.7V
22k HSC277
C204
C201 SWITCH
33p
1.5p
Q201
D202
2SC5488A-H
HSC277
RF AMP
RF
SWITCH
VTX
D203
RF SWITCH
2.8V
R222
4.7k
D203
L207 C224
15n
HSC277 Q204 470p
2SC5488A-H
1.3V
RF AMP
+B
80
X57-784 (C/3) 7/8
AF
SCHEMATIC DIAGRAM
144T
430T
45TX
+B
D204
RF
SWITCH
HSC277
RF
C212 C216 C223
R233
10p
10p
1000p
D205
L202 L204
RF
SWITCH
22n 22n
HSC277
VTX
R220 33RB
100
45RVB
45RUB
D5
R227
0
HSC277
APCSW
D7
HSC277
APC&BPFB
D5,D7
RF
R224
SWITCH
100
SWITCH
AG
TX-RX UNIT (X57-784X-XX) (C/3) : TX-RX SECTION
T:3.7V
R: 0V
T:4.6V
R: 0V
T:4.4V
R: 0V
IC202
UPC3232TB
C243
3
4
VCC
INPUT
470p 2
5
GND1
GND2
C248
6 1
oUTPUT
GND3
18
100p
RF AMP
REVERSE
CURRENT
PROTECTOR
D209 MA2S728
R238
68k
AMP
C244 470p
Q207 2SC4617(R)
C233
470p
C229
1000p
IC201
Q205
OP AMP
2SK1830F
X57-784X-XX (C/3) C219
0-01 TH-D72A K NO
2-71 TH-D72E E 1000P
AH
R256
12
L212
L253 C260 R257
12n 10n
Q214 470p 12
NE5500234
RF AMP
R248
10k
T:VHF:2.6V
T:UHF:3.0V
R:0V
DC SWITCH
Q212
RN4902-F
R251
470
OP AMP
IC203
LMC7101BIM5
CONSTANT
VOLTAGE
AI
+B
144T
430T