Tx-Rx Unit (X57-6980-10) - Kenwood TK-7180 Service Manual

AE
TK-7180
C3
R6
C1 470p
C2 180
R2
1000p 18 470p
0.84V
Q1
2SC5108(Y)
TX PRE-DRIVER
1.14V
8T
AM1
4.96V
R187
3.3k
C205
R186
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
66
X57-698 7/9
AF
SCHEMATIC DIAGRAM
L14
TX DRIVER
1.10V
33n
Q2
C9 2SC5192 C64
C16
33p 10p
56p
0.89V
7.78V
7.55V
7.81V
R77
TA75W01FU
1
OUT1
2
IN1-
3
IN1+
4
VEE
C76
DC AMP
FOR TX APC
4.99V
C215
18p
N:4.85V
CF171
L72-0986-05
W/N CF SW
D171
DAN235E
W/N CF SW
CONTROL
Q173
CF172
DTA114EE
L72-0998-05
W/N CF SW
CONTROL
Q174
DTC144EE W:4.96V
AG
IC1
RA30H1317M
POWER MODULE
R16
47
C21
R17
47
470p
H:4.44V
L:3.33V
H:13.13V
L:13.42V
VOLTAGE
PROTECTION
TX GATE SW
R19
Q3
150
DTC114EE
100k
IC71
8
VCC
7
OUT-B
R79
6
IN2-
5
180k
IN2+
470p
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
9
8
FILIN
AFOUT
C224
270p
W/N CF SW
C225
D172
270p
DAN235E
R198
R200
330k
NOISE AMP
Q175
2SC4617(Q)
AH
TX-RX UNIT (X57-6980-10) (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
3.3k
D173 SQ NOISE-AMP
RB706F-40 DETECTOR
C228
0.1u
AI
C44
120p
8T
R89
47k
Q72
2SK1824
HIGH/LOW
POWER SW
AM1
ASQ
MI2
AFO
ME