Kenwood TK-2317 Service Manual page 60

U
TK-2317
R2 03
10
R: 0V
T:1.4V
RF AM P
R:2.1V
Q 2 0 1
T:2.0V
C 2 01
R237 C26 4
R2 05
0
0 47 p
1 00 0p
R: 0V
T:0.7V
LO
R: 0V
T:4.9V
50T
THDET
R30 3
RT 1 N 1 4 0 U - T 1 1 1
Q 301
D C S W
5 6 0
R301
0
R:3.3V
T: 0V
DC SW
DCSW
AFCONT
50T
APCSW
50V
50M
33M
BPF1
PCBPF2
TXD
50R
50C
2NDLO
5.0V
F M S YAT EM
IC 401
N JM259 1V
1
oSCIN
MIXIN 1 6
2 oSCoUT
1 5
GND
MIXO 3
MIXoUT
NoISEREC 1 4
4
V+
NoISEDET 1 3
C4 1 4
IFIN
5 IFIN
RSSI 1 2
C 424
C 4 18
0 . 1 u
6
DEC
IFoUT 1 1
5 6 p
0 .1 u
7
FILoUT
1 0
QUAD
R4 17 8
FILIN
AFoUT 9
1 5 0 k
C 419
R 419 R 42 1
82k 3 .3 k
5 6p
R4 22
3.3k
D C S W
WID/NAR
Q 40 1
DETAF
RT 1 N 4 4 1 U - T 1 1 1
RSSI
MIC
PTT/RXD1
SB
EMPTT
BUSY
PTT/RXD
OPTDET
VOLOUT
B
60
X57-788 5/6
V
SCHEMATIC DIAGRAM / 原理图
R2 11
R2 06
R: 0V 1 0
T:1.5V
2. 2k
PRI-DRV
2SC5455- A
2 SC56 36 C2 65 C209
Q 2 0 3
3 3 p R: 0V
3 0 p
T:0.8V
3.4V
R308
1.8k
R31 1
150 k
(D)
R312
150k
(D)
R: 0V
7.5V
T:3.4V
Q30 3
2 SK18 30 F
R:4.8V
T: 0V
R:0.7V
C429
R4 33
T: 0V
6 8 0 k
3 3 p
C433 R4 34
I F AMP
R4 25
2 2 0
0.0 1u
0
Q405
KTC408 0E-P
L 7 9 - 1 8 6 6 - 0 5
CD401
R4 24
1. 8k
BUSY
RSSI
W / N SW
R428
0
W
R2 1 3
1 . 2 k
C2 1 5 R 2 1 7 C 2 1 7
L 2 0 6
3 9n
2 2 p 1 2 30p
H : 2 . 1 V
L: 1.7 V
R314 R 3 15
470k (D) 1 0 k
I C 3 0 1
R 3 1 8
C308
1
AoUT 4 7 0 k
V +
8
1 0 p
2
A-IN
B o U T
7
3
A+IN
B-IN
6
4
GND
B + I N
5
NJ M2 90 4R B1 -ZB
A P C
FB
R 3 1 7
D C SW
0
Q 3 0 4
RT 1 N 1 4 1 U - T 1 1 1
LOCAL
R:5.0V
T: 0V
R4 3 7
4.7k
L 4 0 8 L 4 1 0
XF4 0 1 49.95MHz 5 6 n
5 6 n
L 7 1 - 0 6 5 5 - 0 5
C 4 4 7
C 4 4 4
2 p (B) 3 p (B)
BPF
L 4 0 9
2 2 0 n
R 4 3 8
R:3.1V
1 k
MIXER
T: 0V
C 4 4 5
Q 4 0 6
1 3 p 3 SK 3 1 8
X
D R I V E
C2 2 2
R D 0 1 MU S1 -T 1 1 3
Q 2 0 4
82p
R221
56k
H : 3 . 5 V
L : 2 . 9 V
D C S W
Q 3 0 6
RT 1 P 4 4 1 U - T 1 1 1
D C S W
Q 3 0 5
2 S K1 8 2 4 -A
FB
50R
C 4 5 5
R 44 5
0
1 0 0 0 p
R:3.1V
C 4 5 2
T: 0V
1 0 0 0 p
Y
TX-RX UNIT (X57-7880-20)
THDET
DRVOUT
TXBIAS
APCDB
50T
50R
RXRF
50V
50M
33M
BPF1
TXD
AFCONT
PTT/RXD
MIC
SB
PTT/RXD1
SB
EMPTT
FB
OPTDET
VOLOUT
B