Kenwood TK-2317 Service Manual page 59

P
TX-RX UNIT (X57-7880-20)
THDET
50C
470
R60
3.7V
L2
1 5 n
C2 0 C2 9
LOIN
1 5 p
4 70p
CV(A)
R2 7
CV
10k
R19
R 17
R20
CP
0 0
680
CPZ
L 5
1 0 u
16.8M
50C
DC SW
Q 11
SSM3 J05 FU-F
R67
VCOS
1 0 k
DCSW
TX/RX
MOD2
AF_CONT
50T
APCSW
50V
50M
33M
BPF1
PC/BPF2
TXD
ASSIST
50R
DETAF
MIC AGC
C89 6
R9 02
MIC
10k
0. 1u
D8 07
KDR731
C89 7
0. 47 u
MICFB
RECTIFICATION
C 898
0. 47 u
D8 08 K DR731
RECTIFICATION
Q8 09
KT C4 07 5E(Y,G R)
R9 0 3
100
VOX
RSSI
33M
MICMT
WID/NAR
PTT/RXD1
SB
EMPTT
BUSY
PTT/RXD
OPTDET
VOLOUT
B
Q
SCHEMATIC DIAGRAM /
C34
R62
2.5V
68k
47 0p
Q2
2SC563 6
2.2V
RF BUFF
D12
C51
L 4
L7
10u
4 7 p
1 S V 3 2 5 F
D8
C4 7
1 S V 3 2 3 F
D9
8 2 p
1 S V 3 2 3 F
DC SW
R68
Q 1 2
2SK1830F
0
50C
AG C A MP
Q81 0
2SC411 6(G R) F
R90 6
1k
C9 0 9
R9 10
1 0 k 0 . 1 u
R9 07
2 .7k
Q8 11
RECTIFICATION
2SA1586( Y, GR)F
D 8 1 0 MC 2 8 5 0
AG C AMP
R 91 1
R9 0 8
10k
10 0k
R90 9 1 M
C 90 7 4 7 p
RECTIFICATION
C9 04
4
o U T I N -
3
0 .47u
V S S
2
D809
5
KDR73 1 V D D
I N +
1
3.3V
VOX AMP
I C 8 1 7
TC75S51 FE(F)
VOX
C 94 9
1 0 0 0 p
R
原理图
C7 2
5p (B)
RX VC O
R 4 4
R F BU F
MC H3 91 4 (7 )-H
22
2 S C5 6 3 6
Q4
Q 8
C 6 6
R 4 6
0 .5 p
1 5 0 k
0.7V
TX VCO
R 4 5
MCH 3 91 4 (7 ) -H
22
Q5
R:4.2V
T: 0V
C67
0 .5 p
R I PP L E
F I LTE R
5.0V
K T C 4 0 7 5 E ( Y, G R )
Q 3
R3 9
56k
50C
0.6V
C 4 96
0 .1 u
R 4 6 9
3 3 k
DC SW
R91 2
IC 4 0 2 NJ U 7 1 0 8
0
1
IN -
VD D
2
V SS
3
I N +
OU T
W:3.3V
N: 0V
S
TK-2317
C 7 3
3.9V
C 8 5
1 5 p (B)
3.6V
R F AM P 2 2 p
L25
2 SC 5 6 3 6
Q 9 1 5 n
4.6V
R: 0V
T:4.2V
4.2V
L 1 6
SSM 3 J 0 5 FU -F
Q 7
D C S W
D C S W
Q6
S SM6 L 0 5 F U -F
R: 0V
T:3.3V
50R
50C
R4 1 4
1 0 0
C 4 1 5
4.8V
3 9 p
R4 1 0
C 4 1 0 L 4 0 2
3 3 0 k
1 0 0 n
2 2 p
Q 4 0 3
K TC 4 0 8 0 E -P
T R IP
WIDE
C F 4 0 2
5.0V
L 7 2 - 1 0 1 0 - 0 5
C 4 0 6
C4 0 4
0.1u 0.1u
5
R 4 7 1
4
4.7k
Narrow
CF 4 0 1
L 7 2 - 1 0 4 5 - 0 5
D 4 0 1 D4 0 2
C 4 0 3 C4 0 5
0 . 1 u 0 . 1 u
K DS 1 2 1 E-P K DS 1 2 1 E- P
F I L SW
FI L S W
T
C 7 7
LO
1 8 p
THDET
50C
DCSW
AFCONT
50T
APCSW
50V
50M
33M
BPF1
PCBPF2
TXD
50R
50C
2NDLO
MIXO
IFIN
WID/NAR
DETAF
RSSI
MIC
PTT/RXD1
SB
EMPTT
BUSY
PTT/RXD
OPTDET
VOLOUT
B
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