Kenwood TK-7180H Service Manual page 99

AE
TK-7180H/7182H
C3
R6
C1 C2 470p
180
R2
18
1000p 470p
0.84V
Q1
2SC5108(Y)
TX PRE-DRIVER
1.14V
8T
AM1
4.96V
R187
3.3k
R186 C205
4.37V
330 0.01u
IF AMP
Q172
0.84V
2SC5108(Y) L187 C209 R217 C211
100n
0.01u 10p
0
0.07V
MI2
AFO
ME
92
X57-698 7/10
AF
SCHEMATIC DIAGRAM
L14
1.10V
TX DRIVER
Q2 33n
C9 2SC5192 C16 C64
9p
56p
33p
0.89V
7.78V
7.55V
7.81V
1
2
3
4
4.99V
C215
18p
N:4.85V
CF171
L72-0376-05
W/N CF SW
D171
DAN235E
W/N CF SW
CONTROL
Q173
CF172
DTA114EE
L72-0372-05
W/N CF SW
CONTROL
Q174
DTC144EE W:4.96V
AG
IC1
RA30H1317M-23
POWER MODULE
R16
47
L16
C21
R17
39n
47
470p
FC-H:4.68V
FC-L:4.15V
FC-H:12.72V
FC-L:13.25V
VOLTAGE
PROTECTION
TX GATE SW
R19
Q3
DTC114EE 150
R77 100k
IC71
TA75W01FU
8 GATE BIAS
OUT1
VCC
7
IN1-
OUT-B
6 R79
IN1+
IN2-
5
VEE
100k
IN2+
C76 470p
DC AMP
FOR TX APC
FM IF SYSTEM IC
IC172
TA31136FN
1 16
OSCIN
MIXIN
2 15
OSCOUT
GND
3 14
MIXOUT
N-REC
4 13
VCC
N-DET
5 12
IFIN
RSSI
6 11
DEC
IFOUT
7 10
FILOUT
QUAD
8 9
FILIN
AFOUT
C224
270p
W/N CF SW
C225
D172
270p
DAN235E
R198
330k
NOISE AMP
Q175
2SC4617(Q)
AH
TX-RX UNIT (X57-6980-XX) (B/3)
D3,4
ANT SW
D3
XB15A407A2GB
D4
1.55V
XB15A407A2GB
0.80V
ANT SW
DC AMP
FOR TX APC
100k
R85
IC72
TA75W01FU
1 8
OUT1
VCC
2
7
IN1-
OUT-B
R81 3 6
IN1+
IN2-
4 5
100k VEE
IN2+
C77 470p
Q73
DTC114EE
HIGH/LOW
POWER SW
H/L
4.99V
4.94V
W/N DISCRETE SW
Q178
DTA144EE
W/N
C231
82p
DET MUTE SW
Q176
2SK1824 C237
R205
RXDET
3.3k
22u6.3
R212
DMUTE
100k
D174
MA2S111
DET MUTE
SW CONTROL
RSSI
R206
Q177
DTC144EE
1k
R222
1k
Q180
DTC144EE
Q177,180
W/N CF SW
CONTROL
R200
3.3k
SQ NOISE AMP
D173
DETECTOR
RB706F-40
C228
0.1u
AI
C44
120p
8T
R89
47k
Q72
2SK1824
HIGH/LOW
POWER SW
AM1
THP
ASQ
MI2
AFO
ME