Kenwood TK-3212L Service Manual page 30

K
TK-3212L
TX-RX UNIT (X57-7130-XX)
3.86V
C83
15p
R:2.934V
T:3.002V
THM
DCSW
APCSW
OSCIN
5C
B
5T
5R
R902
4.7k
Q901
2SK1824-A
RX_W/N
W/N SW/TX
TX_W/N
DTMF
DTRLOADN
STD
DIR
TDATA/DTRCLK
DI/O
SCLK
ROF/FD
TCLK/DTRDO
XIN
R422
XOUT
1k
BSHIFT ON:4.95V
OFF:0V
Q407
2SK1830F
BSHIFT
EEPCLK
EEPDAT
EEPROM
IC406
AT24128N10SU27
1
8
A0
VCC
2
7
A1
WP
3
6 R424
A2 SCL
4
5 R425
RSSI
GND SDA
BUSY
THM
VOX
5M
AFCONT
OPTDET
RXD/PTT
TXD
PCTV
MIC_MUTE
QT/DQT_IN
PTTSW
SB
X57-713 3/4
L
SCHEMATIC DIAGRAM
D101,202
TX/RX
RF AMP RF SW
4.62V
Q9
D101
2SC4619 C87
10p
HSC277
CF201
R:5.01V
L72-0958-05
T:0V
C213
0.1u
C210
R208
82k
470p
FM IF
SYSTEM
IC201
TA31136FNG
R210
3.3k
W/N SW/RX
R211
Q202
RT1P441U
3.3k
W:0.015V
N:4.94V
C215
1000p
C450
X3
0.01u
L77-1633-05
7.37MHz
C432 R423 R410 R409 C435
0 0 Q408
5p 0 5p
2SK1830F
Q407,408
BEAT SHIFT SW
47k
47k
M
T:4.81V
R:0V
R103 C107
T:2.846V
47k
C101 C102
Q100
470p 12p
2SC4619
RF AMP
L250
5R
R:2.87V
18n
T:0V
C290
2p(B)
MCF
XF201
L71-0619-05
R:4.74V
38.85 MHz
C219 R216 C224 R218
oUT IN
120k 560
33p 0.01u 2 1
Q203
2SC4649(N,P)
IF AMP
R301 C302
10k
270p
FREQUENCY DIVIDER
IC407
TC7W74FU-F
1 8
CK VCC
2 7
D PR
3 6
Q CLR
4 5 C451
GND Q
0.01u
C452
1000p
3.6864MHz CLK
N O
RF AMP
T:4.96V
Q101
2SK3077F C112 R112 R111
7p 0 0
6p
R453
22k
T:4.96V
THM
R:5V
BPF
R:5V
C231
R219 L204 Q204
3SK318
270n
0.01u 560
MIXER
R:0.47V R:1.808V
R226
1k
CN201
R304
27k
C312
12p
C315
1u
10 32
DTRLoADN
AGND
TCLK/DTRDo
11 31
TDATA/DTRCLK
RXIN
12 30
DI/o RXINo
R306
13 29
IC301
FILTERo
RDF/FD
AQUA-L
1k
14 28
SCLK
EXPoUT
AUDIO PROCESSOR
15 27
DIR
RXAFIN
16 26
XoUT RXAF
C309 C313
82p 120p
R310 R313
D301
RB706F-40
390k 100k
C311
R314 2.7k
1u
C310 0.068u
DETECTOR
X57-7130-XX L206
-12 K,M NO
-13 K2,M2 27n
5T
DCSW
APCSW
B
5R
R:1.795V
C239
1000p
TX_W/N
DTMF
R316
120k
5M
LIMLV
RXIN
RXINO
FILTERO
EXPOUT
RXAFIN
RXAF
DTRAIN
C316 0.1u
R311 12k
AFCONT
OPTDET
RXD/PTT
TXD
PCTV
MIC_MUTE
QT/DQT_IN
PTTSW
SB
L290
30n
NO