Kenwood TK-3302 Service Manual Supplement page 30

K
TK-3302
X57-7580-XX Q102 Q104 L102 L103
-20 K,M,P 2SC4926YD NO 39n 15n
-22 K2,M2 2SC5455-A RT1N441U 39n 22n
-23 K3 2SC5455-A RT1N441U 27n 18n
T:4.6V
TX/RX
RF SW
R:0V
R102
T:3.21V
D10
MC2858
* 27k
C103
C101
470p Q101
2SC5636
RF AMP
L250
18n
R:3.19V
C290
T:0V
2p(B)
5C
2ND_LO
TH_DET
DC_SW
APC_SW
B
5R
AFVOLIN
AFVOLOUT
MOD
5T
BUSY
DTMF
R325 C339
4.7k
1u
MOD
W/N
R340 R342
10k 10k
R347
0
C356
R341 R345
10k 27k
1000p
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
30
X57-758 3/4
L
SCHEMATIC DIAGRAM
L104 L105 L107 L108 R104 R105 R107 R111 R116
8.2n 22n 2.7n 2T 47 27k 56 39k 330
3.3n 22n 8.2n 3T 47 27k 56 39k 330
8.2n 4.7n 2.2n 2T 39 18k 39 47k NO
*
R105
T:4.61V
*
C109
*
C115
R109
0
*
Q102
RF AMP
T:4.35V(H)
:2.85V(L)
T:4.93V
W/N SW/TX
Q307
BUSY
RT1N441U
C385
R372
0.1u 0
R355
120k
C364 C371
12p 10u
C367 R357
56k
1u
C372
32
1000p
AGND
31
RXIN
30
RXINo
29
IC308
FILTERo
AQUA-L
28 R361
EXPoUT
AUDIO PROCESSOR
27 0
RXAFIN
26
RXAF
C366
0.1u
C374
1000p
M
R118 R121 R122 R124 R135 R201 R210 R212 C103
NO 10k 27k 22 180k 82k 3.9K 220K 30p
O 4.7k 27k 22 100k 82k 3.9K 180K 12p
330 15k 68k 100 100k 180k 4.7K 220K 12p
R:7.57V
TX DRIVE AMP
T:7.24V
T:1.30V
Q103
*
L104
R141 RQA0004PXDQS
0
*
R121
R130
330k(D)
C137
100p
R128
VOLTAGE
PROTECTION
150k
(D)
R127
*
Q104
150k
DISCHARGE SW
(D)
R:7.57V
T:7.44V
B
CF201
C208
L72-0973-05
450 kHz
0.1u
R205 C207
82k 560p
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
R364 R369 C390
100k 82k
1u
R363
100k
C382 R367 R373
39k 220k
0.015u
R365
3.3k
R366 C384
150k
0.1u
QT/DQT_IN
VOX
RSSI
N
C104 C109 C115 C117 C118 C122 C123 C125 C126
4p 6p 11p 11p NO NO NO 10p 11p
NO 6p 5p 2p NO 1u NO 10p 6p
16p 18p 5p NO 9p 1u 0.5p 15p NO
TX-RX UNIT (X57-7580-XX)
TX FINAL AMP
Q106
*
* C125 L107
R119 RD07MVS1BT122
0
IC101
BA2904FVM
RT1P441U
5 4
+IN2 VEE
6 3
-IN2 +IN1
7 2
oUT2 -IN1
DC SW
8 1
VCC oUT1 Q108
*
R135 2SK1824-A
APC
C144
470p
DC SW
Q107
RT1N441U
MCF
XF201
L71-0619-05
T:4.37V
38.85 MHz
C216 R213 oUT
* R212 390
0.01u
Q202
2SC4774
IF AMP
C214
2p
R356 C377
4.7k 0.068u
C363 82p
R349 1M
R350
120k
D307
C365
MC2850
LIMITER
82p
R352
RECTIFICATION 150k
R353
D306
KDR731
12k
C361
1u
O
C127 C132 C219
16p NO 1p
18p 56p NO
47p NO 1p
5T
DC SW
Q109
PCTV
5R
AFVOLOUT
IN R214 C223
330
0.01u
MIC
PTT
OPTDET
TXD
MIC_MUTE
PCTV
AF_CONT
5M
SB