Block Diagram - Kenwood TK-2207 Service Manual

K
TK-2207
TX-RX UNIT (X57-6870-20)
D101,202
TX/RX
RF SW
4.6V
D101
C87
2.2V
R:1.65V
10p
HSC277
T:1.05V
Q9
2SC5108(Y)
RF AMP
R:2.84V
T:0.03V
DCSW
B
5T
APCSW
OSCIN
SP1
TH_DET
SP2
5R
5C
MOD
RX_W/N
TX_W/N
DTRLOADN
STD
TDATA/DTRCLK
DI/O
10
TCLK/DTRDO
11
12
R306 13
IC301
RDF/FD
AQUA
1k
14
SCLK
AUDIO PROCESSOR
15
DIR
16
XIN
EXTLIMIN
C313
C309
82p 120p
R310 R313
C311
390k
100k
AMP3O
1u
PCTV
TXD
QT/DQT_IN
MIC_MUTE
RXAFO
BUSY
RSSI
SB
PTTSW
AF_CONT
OPTDET
5M
X57-687 3/4
L
SCHEMATIC DIAGRAM / 原理图
T:4.9V
R108
T:1.11V
1.5k
RF AMP
C101
R103 C104
Q102
2SC4926YD
1000p 39p
0
R:0.1V
T:1.88V
L202 L205
39n 68n
C233 C237
5p
2p
(B)
(B)
T:2.7V(H)
Q104
1.99V(L)
DTC114EE
APC PROTECT
APC SW
APC SW
Q105
2SK879(Y)
R316
C320 R319
120k 0.01u
56k
C312
12p
C315 R322
1u 180k
R323
56k
32
R324
31 R329
30
100k 82k
29 R325
C328 100k
28
27
390p
26 C322
R321
220k 0.015u
R326
C325 0
0.1u
C326 C331
R331
1000p 39k 0.1u
R330
3.3k
M
TX DRIVE AMP
T:1.88V
L104
C108 R112 C110 Q103
2SK2596
27n
39p 18 1000p
R135
150k (D)
C140
IC101
TA75W01FU
100p
1
OUT1
R130 2
IN1- OUT-B
150k
3
(D) IN1+
4
R131 VEE
150k
(D)
COMPARATOR
(APC)
R134
(D)
150k
Q107
DTC114EE
APC SW
oUT
C210
R208
82k
470p
W/N SW/TX
Q301
FM IF
DTA114EE
SYSTEM
IC201
TA31136FN
C329
R210
3.3k
1u
W/N SW/RX
Q202
DTA144EE
W:0.011V
N:4.98V
RXAFO RXAFI
C330 R446
0
1u
MICO MICI
DETECTOR
D302
R445
RB706F-40
R318
C317
0
1.2k
0.1u
C316
R314
0.1u
10k
N O
TX FINAL AMP
R:7.68V
T:7.30V
C120 L107
R120 Q106
2SK2595
27n
1000p
0
APC SW
Q109
DTA144EE
8 C146
VCC
7
1000p
6
IN2- APC SW
5
Q108
IN2+
2SK1824
R141
100k
MCF
XF201
L71-0619-05
38.85 MHz
C231
R219
IN
2 1
560
0.01u
CF201
L72-0973-05
C213
0.1u
C219
R216
120k
33p
IF AMP
Q203
2SC4649(N,P)
R211
3.3k
ISOLATION
MIC AGC
D303
Q302
DAN222
2SC4919
R328
10k
C333
R332
15k
0.1u
C310 R311 R360
0
0.068u 12k
RX LO1
5T
5R
PCTV
SP2
TXD
SB
PTTSW
AF_CONT
OPTDET
5M