Kenwood TK-2200 Service Manual page 36

K
TK-2200
TX-RX UNIT (X57-6880-XX) -10:K -11:K2
D101,202
TX/RX
RF SW
4.6V
D101
C87
2.2V
10p
HSC277
Q9
2SC5108(Y)
RF AMP
R:2.84V
DCSW
B
5T
APCSW
OSCIN
SP1
TH_DET
SP2
5R
5C
MOD
Q317,318
AUDIO SW
Q317
2SK1824
R304
560k
Q318
C355
2SK1824
0.1u
DTMF SW
CALLING ALERT SW
RX_W/N
TX_W/N
DTRLOADN
STD
STD
10
TCLK/DTRDO DTRLOADN
TCLK/DTRDO
11
TDATA/DTRCLK
TDATA/DTRCLK
12
DI/O
DI/O
R306
13 IC301
RDF/FD
RDF/FD
AQUA
1k
14
SCLK
SCLK
AUDIO PROCESSOR
15
DIR
DIR
16
XOUT
XIN
C313
C309
82p 120p
R310
R313
C311
390k 100k
AMP3O
1u
PCTV
TXD
QT/DQT_IN
MIC_MUTE
BUSY
RSSI
AF_CONT
SB
5M
PTT
OPTDET
X57-688 3/4
L
SCHEMATIC DIAGRAM
T:4.89V
R108
T:1.13V
1.5k
RF AMP
C101
R103 C104
Q102
2SC4926YD
1000p 39p
0
L202 L205
68n
39n
C233 C237
2p 5p
(B) (B)
T:2.7V(H)
Q104
1.99V(L)
RT1N141U
APC SW
APC PROTECT
APC SW
Q105
2SK879(Y)
R316 C320 R319
120k
0.01u
56k
C312
12p
C315 R322
180k
1u
R323
32 56k
AGND
R324 R329
31
RXIN
30 100k 82k
RXINO
29 R325
FILTERO
100k
28 C328
EXPOUT
27 390p
RXAFIN
C322
26 R321
RXAF
220k 0.015u
R326
C325 0
0.1u
C331
C326 R331
39k
1000p 0.1u
R330
3.3k
M
TX DRIVE AMP
L104
C108 R112 C110
Q103
RD00HVS1
33n
15p 18 1000p
R135
150k
(D)
C140
IC101
TA75W01FU
100p
1
OUT1
R130
2
IN1-
150k
3
(D) IN1+
4
VEE
R131
150k
(D)
COMPARATOR
(APC)
R134
150k (D)
Q107
RT1N141U
APC SW
oUT
C210
R208
82k
W/N SW/TX 470p
Q301
FM IF
DTA114EE
SYSTEM
IC201
TA31136FN
C329 R210
3.3k
1u
W/N SW/RX
Q202
RT1P441U
W:0.011V
LIMITER
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
10k 0.047u
R388 0
N O
R:7.53V
TX FINAL AMP
T:7.41V
L107
R144 C162 R450 C120
56n
39p 4.7 1000p
0
R:0.29V
T:3.09V
T:4.94V
APC SW
Q109
RT1P441U
8 C146
VCC
7
1000p
OUT-B
6
IN2-
APC SW
5
Q108
IN2+
2SK1824
R141
100k
R:5.0V
T:0V
XF201
L71-0619-05
C231
R219
IN
1
2
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
R332 C333
15k
0.1u
C310 R360
R311
0.068u 0
12k
PCTV
BUSY
RSSI
Q106
RD02MUS1
RX LO1
5T
5R
PCTV
SP2
TXD
AF_CONT
SB
5M
PTT
OPTDET