Kenwood TK-3302 Service Manual Supplement page 31

P
X57-7580-XX L205
-20 K,M,P 27n
-22 K2,M2 27n
-23 K3 33n
X57-7580-XX C231
-20 K,M,P 470p
-22 K2,M2 470p
-23 K3 1000p
TX-RX UNIT (X57-7580-XX)
5T
5R
BPF
R:4.88V
L204
Q203
3SK318
180n
MIXER
* C231
R:0.47V
R:1.75V
R215
2.2k
PCTV
SB
DC SW
Q313
2SB1694
7.54V
AFVOLOUT
R377
47k
Q312
RT1N441U
DC SW
MIC
C369
0.1u
D308,309
RECTIFICATION
C370
0.1u
PTT
OPTDET
TXD
MIC_MUTE
5M SB
AF_CONT
5M
SB
Note : The components marked with a dot (
Q
SCHEMATIC DIAGRAM
L213 L214 L215 R218 R222 R223 R227 R229 C142
8.2n 47n NO 56k 22 220 0 NO 43p
3.9n NO 3.9n 56k 22 220 NO 0 NO
8.2n 47n NO 82k 15 120 0 NO 47p
C232 C235 C236 C237 C240 C242 C244 C245 C247
3.5p NO 4p 22p 2p 6p 22p 1p 2p
4p NO 2.5p 30p 1.5p 4p 30p 0.75p 2p
3.5p 0.75p 7p 27p 4p 8p 27p 1p 4p
STRIP LINE
*
R137 C166
0
R138
150
R:4.88V
T:0V
R:1.75V
*
C234 C238 C240
R220
470p 0 1p
D201-203
RF BPF TUNING
R:0.2V(MUTE ON)
7.4V(MUTE OFF)
T:0.2V
C396 R379
1k
0.1u
R:7.51V(MUTE ON)
0.16V(MUTE OFF)
T:7.36V
C383
0.1u
R370
D308
KDR731
1k
D309
KDR731
R371
2.7k
Q308
KTC4075E(Y,GR)
RECTIFICATION
•
) are parts of layer 1.
R
C143 C145 C146 C155 C161 C162 C164 C166 C168
NO NO 12p NO 1p 2p NO 6p 4p
30p 1p NO NO NO 1p NO 5p 2.5p
NO 36p NO 0.3p 1.5p NO 3p 7p 4p
C248 C249 C257 C258 C259 C261 C262 C263 C264
22p 4p 3.5p 22p 2p 3p 22p 1p 3.5p
30p 3p 2.5p 30p 1.5p 1.5p 30p 2p 22p
27p 8p 8p 22p 1.5p 2p 22p 6p 2p
*
C173
ANT SW
D103 C170
L113
4T
HSC277 100p
L112
4T
ANT SW
R:4.88V
L208
R:4.78V
R:4.84V
*
C245 * C247 C250 *
R222
470p
Q204
3SK318
R:0.93V
Q204
LOW NOISE AMP
R380
470k
AUDIO AMP
IC309
TA7368FG
1 10
NC1
PoUT
2 9
VCC
PW-GND
8
3
NC2
PRE-GND
4 VIN C399
7
PHASE
6
5 R381 100p
RIPPLE
NF
150 C400
10u
C402
0.1u
Q314
RT1N441U
MUTE SW
MIC
C392 L305
R374
15k
0.047u
Q310
2SC4116(GR)F
MIC MUTE
MIC MUTE
Q311
2SA1586(Y,GR)F
S
TK-3302
C169 C172 C173 C174 C175 C176 C177 C178
2.5p 3p 0.5p 5p 2p 5p 2p 3p
4p 6p NO 11p NO 7p 0.5p 2p
2.5p 1p 0.5p 10p NO 10p 0.3p 6p
C265 C266 C409 C411 D105 D106
3p 5p 470p 470p HVC131 NO
8p 6p NO NO NO HVC131
5p 7p 470p NO NO HVC131
* *
C175 C177
L114 L115
4T 4T
R140
0
ANT SW ANT SW
R:1.94V
*
*
C256 C259 C261
R226
0
470p
PCTV
D204,205
RF BPF TUNING
SB
MUTE SW
Q315
2SK3577-A
C404
100u6.3
MUTE SW
Q316
2SK3577-A
R388
100
CP304
RK75HA1J102J
R385
100
T
1
CN13
ANT
2
3
4
* C264
5
6
J301
PTT/RXD
MIC
MICIN
OPTDET
5M
AE
TXD
NC
SPO
SPI
MIC301
7
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