Kenwood TH-K20A Service Manual page 24

A B
TH-K20A/K20E
1
TX-RX UNIT (X57-821X-XX) 0-11: K 0-20: M 2-71: E
Foil side view (J79-0325-09)
2
3
4
5
6
7
8
S419
9
10
11
12
13
24
14
C D
PC BOARD
S418
PTT
C141
C345
+
VR300
C357
Q404
C347
Q403
R453
C424
R452
J301
Ref. No. Address Ref. No. Address
IC1 8Q Q5
IC200 8M Q6
IC302 6G
Q7
Q101
IC303 7F
IC400 8I
Q102
Q1 6Q Q103
Q2 4P Q104
Q3 5Q Q200
Q4 4Q Q201
E F
C139
C137
C138
L109
C136
R319
R320
5
IC302
8
C317
R386
C320 R322
R325 R326
C324
5
IC303
8
C325 C328
J300
Ref. No. Address Ref. No. Address
3Q Q202 8N D2
Q203 6M
8R D3
Q204 6J D4
9Q
4N Q307 4O D5
Q401 9J
3N D6
Q402 8J
D7
4L
4N Q403 8C D8
8M Q404 7C D9
D1 5P
9O D10
G H
S417
MONI
L115
C134
L112 C265
R119 D104
C146
C318
4
1
R387
C327
R327
R329
4
R330 C406
1
C407
R328
C404
C405
Ref. No. Address Ref. No. Address
5P D11 6Q D204
6P D101 4F D401
5Q
D102 4F
5Q D103 4G
5P D104 5H
4P
D105 4G
3P D200 6K
5R D201 6K
6R D203 5I
I J
L113
L214
D203
C261
R243
C154
C25
C253
Q204
G S
G D
R236
C255
R239
C427
C428
C386
R382
R439
C418
C419
R33
R437
C33
Q401
6L
8J