Kenwood TK-3302 Service Manual page 36

K
TK-3302
X57-7582-XX C103 C104 C109 C111 C115 C117
-71 E,T NO NO 6p 1u 6p
-72 E3 12p 16p 18p 10u 5p
R:0V
TX/RX T:4.72V
T:3.21V
RF SW
*
R150 R102
D10
MC2858
27k
*
C101 C103
470p
Q101
2SC5636
RF AMP
L250
18n
R:3.19V
C290
T:0V
2p(B)
5C
2ND_LO
TH_DET
APC_SW
B
5R
AFVOLIN
AFVOLOUT
MOD
5T
BUSY
DTMF
C339
R325
4.7k
1u
MOD
W/N
R340 R342
10k 10k
R347
0
C356
R341 R345
10k 1000p 27k
DTRLOADN
STD
10
TCLK/DTRDO
11
TDATA/DTRCLK
TCLK/DTRDo
12
DI/O TDATA/DTRCLK
DI/o
R348 13
RDF/FD
RDF/FD
1k 14
SCLK
SCLK
15
DIR
DIR
16
XoUT
1/2_OSC 3.6864MHz CLK
5M
PTT
OPTDET
TXD
MIC_MUTE
QT/DQT_IN
VOX
RSSI
PCTV
AF_CONT
SB
36
X57-758 3/4
L
SCHEMATIC DIAGRAM
C118 C123 C125 C126 C127 C128 C130 C147
12p NO NO 10p 12p 22p NO 2.2u NO
NO 9p 0.5p 15p NO 47p 1u 1u 10u
*
R105
T:4.51V
*
C109
*
C115 *
R109
Q102
2SC5455-A
RF AMP
T:4.35V(H)
:2.85V(L)
T:5.08V
W/N SW/TX
Q307
BUSY
RT1N441U
C385 R372
0
0.1u
R355
120k
C364 C371
12p
10u
C367
R357
56k
1u
C372
32 470p
AGND
31
RXIN
30
RXINo
29
IC308
FILTERo
AQUA-L
28 R361
AUDIO PROCESSOR
EXPoUT
27
RXAFIN
26
RXAF
C366
0.1u
C374
1000p
M
C206 C207 C214 L101 L102 L103 L104 L105 L107
680p 680p 11p NO 33n 15n 1n 22n 2.7n
820p 820p 2p 18n 27n 18n 8.2n 16n 2.2n
R:7.5V
TX DRIVE AMP
T:1.21V T:6.91V
Q103
C116 *
L104 RD01MUS1-T113
470p
R121
15k R130
330k(D)
C137
100p
R128
VOLTAGE
PROTECTION
150k
(D)
R127
150k
(D)
R:7.5V
T:7.17V
B
CF201
C208
L72-1025-05
450 kHz
0.1u
*
C207
R205
82k
IC201
TA31136FNG
FM SYSTEM IC
W/N SW/RX
R209
Q201
W/N
3.3k
RT1P441U
RSSI
W:0.01V
N:5.01V
C386
R368
0
0.01u
C381
390p
C390
R364 R369
100k 82k
1u
R363
100k
C382
0 R367 R373
39k 220k
0.015u
R365
3.3k
C384
R366
150k
0.1u
QT/DQT_IN
RSSI
N
R105 R107 R108 R109 R110 R116 R124 R150 R210
33k 68 820 22 820 330 22 0 3.9K
18k 56 1.5k 15 1.5k NO 100 NO 4.7K
TX-RX UNIT (X57-7582-XX)
TX FINAL AMP
Q106
* *
C125 L107
R119 RD07MVS1BT122
0
IC101
BA2904FVM
5 4
+IN2 VEE
6 3
-IN2 +IN1
7 2
oUT2 -IN1
DC SW
8 1
VCC oUT1 Q108
2SK1824-A
R135
100k
APC
C144
470p
DC SW
Q107
RT1N441U
MCF
XF201
L71-0637-15
T:4.37V
38.85 MHz
C216
R213 oUT
* R212 390
0.01u
Q202
2SC4774
IF AMP
*
C214
R356 C377
4.7k 0.068u
C363 82p
R349 1M
R350
120k
D307
MC2850
LIMITER
RECTIFICATION
D306
KDR731
C361
1u
VOX
O
R212 R214
220K 330
120K 100
5T
DC SW
Q109
RT1P441U
PCTV
5R
AFVOLOUT
* C223
IN R214
0.01u
C365
82p
R352
150k
R353
MIC
12k
PTT
OPTDET
TXD
MIC_MUTE
PCTV
AF_CONT
5M
SB