Kenwood NX-203 Service Manual page 103

A B C D
NX-203
PC BOARD
1
TX-RX UNIT (X57-8950-11) (A/2)
Component side view (J79-0434-09 A/2)
2
CN1
CV
R35 R54
3
R52
+
C30
4
R17
+
C93
R319
1 5
C31
5
C42
R31
IC2
L6
R28
R32 D5
3 4
+
C38
L8
6
R30
R26
C45
7
C7
R321
R57
C90
8
R322
R59
R3
R70
C3
9 R10
C9
C228
C230
C5
10
C221
11
J79-0434-09 A/2
Ref. No. Address Ref. No. Address Ref. No. Address
IC1 9B IC203 8H
12
IC2 5C IC400 5N
IC3 7E IC401 4P
IC4 7H IC402 9O
IC5 8C IC404 10G
13
IC100 4J Q1 5F
IC200 7K Q2 4F
IC202 9E Q4 6C
4
14
E F G
C131
C127
R53 C79
C12
L7
C22
L5 C26
C21
L2
D2
R22
R7
L30 C32
R19
R69
C46
6 1
R170
25 R40
7
C56 1
C18
R55 R56
IC4
R15
12 19
4
13 18
C87
C88 C35
C85
L98 L99
R254
C262
R221
C224
CF201
1 24 C246
R242
CN202
RSSI
R255
C310 C311
R236
R233
1 8
R226
IC404
C275
12 13 4 5
R231
C239
C234
C236
Ref. No. Address Ref. No. Address Ref. No. Address
Q6 7C Q401 7M D5 5D D403
Q12 3D Q403 7N D6 4D D404
Q13 4F Q404 9O D7 7D D405
Q104 6J Q405 4N D103 7J
Q105 4I Q406 9P D106 6I
Q107 4J D2 5E D400 5M
Q109 3I D3 5E D401 5P
Q110 5I D4 4B D402 8P
H I J K
C152
R165
C141 R144
R149 R147
R150 C143
R164
R148
Q105
R151
Q107
R155
S
D
R157
G
+
F400
C128 + Q104
R131
D106
C123
8
D103
R134
C129
5
R126 C120
R166 C168
R253
R251
S
C402
C403
R246
C440
R256
4N
9P
8P
L M N O
TX-RX UNIT (X57-8950-11) (A/2)
Component side view (J79-0434-09 A/2)
PTT 1
GND
C458
Side_G
Side_1 C457
C468
Side_2 5
C133
R420
Q405
R421
C410
D400
C404
C464
R402 F401
R409
C201 Q401
S D
C409 +
R202
G G
L401
D S
C408
1
Q404
C441
3
R501
C425
C422
CN400
C424
R425
C419
R439
C444
P Q R
NX-203
PC BOARD
TX-RX UNIT
C499
(X57-8950-11) (B/2)
TXO
5V
RXEO
OPT9
R407
D401
RXEI
DTI
C407
Q403
TXI
OPT8
S D
G G
D S
OPT6
OPT11
POW
OPT7
OPT1
R426 OPT5
OPT2
OPT4
5
DGND
4
OPT3
AGND
OPT10
J79-0434-09 B/2
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Foil side
S
1
2
3
4
5
6
7
8
9
10
11
12
13
4
14