Kenwood TK-5710 Service Manual page 112

K
(
TK-5710 B
TX-RX UNIT (X57-7030-10)
4.92V
OP AMP
IC204
TC75S51F
1.03V 1
IN(+)
2
VSS
1.03V 3
IN(-)
R239
RX LO1
MCF ADJ
CN203
E40-5538-05
2
1
7.89V
R237
100k
0.74V 2.51V
C270 R330
C268 R235
1000p 47k
47p 0
W:4.94V
N:5.02V
Q203 APCO:0V
2SC4215(Y)
IF AMP
W:5.01V
N:0V
APCO:5.02V
W:3.26V
N:0.11V
APCO:0.11V
MO
X57-703 3/4
L
) ( )
/5710H B
D435,436
LOCAL SW
D435
HVC131
C150 C151
15p 22p
D436
HVC131
R:0V
T:7.92V
7.91V
5
VDD
4
OUT
1.51V
47k
X200
L77-1961-05
1.51V 3.14V
R240 4
1
VCC
VC
0
0.65V
3
2
GND oUTPUT
VCXO:16.8MHz
IC205-207,209-211
MULTIPLEXER
NARROW
5.01V
CF200
L72-1018-05
IC205
3.59V
TC7W53FK
8
1
CoMMoN VCC
7
2
INH
CH0
R294
3 6 WIDE
VEE
CH1
CF201
4 5
0
GND A L72-1016-05
3.59V
3.59V
IC206
TC7W53FK V NARROW
CF202
1 8
L72-1009-05
CoMMoN VCC
2
7
INH CH0
R295
3
6
VEE CH1
0 4
5
GND
A
NARROW
CF203
IC207 L72-1018-05
TC7W53FK
1 8
CoMMoN VCC
2 7
INH
CH0
R296
3 6
VEE
CH1
4 5
0
GND A WIDE
CF204
L72-1016-05
M
SCHEMATIC DIAGRAM
RF AMP
R:0V
Q150
T:2.04V
2SC3357(RF)
C152 C159
R151 R153
47 15p
27p 0
R:0V
R155
T:5.20V
12k
R253
47
4.96V
C291 R255 C294
0 15p
100p
R251 R252 C289
Q205
2SC5108(Y)
0 8.2k 47p
VCXO
0.73V
FERQUENCY
AMP
1St IF:49.95MHz
SLO
R308
IC209
TC7W53FK R306
5 4
0
A GND
R297
6
3
CH1
VEE R307
7
2 0
CH0
INH
8 1
VCC CoMMoN
4.24V C326
A-L ch0
A-H ch1 0.1u
C327
0.1u
IC210
TC7W53FK
5 4
A
GND
R298
6 3
CH1
VEE
7
2 0
CH0
INH
8 1
VCC CoMMoN
IC211
TC7W53FK
5 4
A GND
R299
6
3
CH1 VEE
7 2
0
CH0
INH
8 1
VCC CoMMoN
A-L ch0
A-H ch1
N
RF AMP
R:0V
Q151
T:1.03V
2SC3357(RF)
R:0V
R164
T:7.31V
3.3k
C299
R256
1k 0.01u
C300
0.01u
C301
10u6.3
FM IC
IC212
TA31137FN
0.95V
1 24
4.80V
oSCIN
MIXIN
23
2
oSCOUT GND1
0 4.85V 3 22
VCC1
VREF
3.58V 0.7V
4 21
MIXoUT
RSS1
C295 20
5
VCC2 C-DET
4.42V 6 19
0.1u
IF1IN
N-DET
C296 4.41V 0.72V
0 7 18
DEC1
FILoUT
3.82V 17 0.65V
0.1u 8
IF1oUT FILIN
C297
4.84V 9 16 1.52V
NDPS
N-REC
4.49V 1.02V
0.1u 10 15
IF2IN
AFoUT
C298
4.49V 14 4.83V
11
DEC2 QUAD
12 13
0.1u
GND2
IF2oUT
2nd:IF:450KHz
O
RSSI
R314
FILOUT
0
FILIN
C306
0.1u
AFOUT
QUAD
IF2OUT
MO