Kenwood NX-320 Series Service Manual page 97

AT
TX-RX UNIT (X57-8050-XX)
+B
FINAL AMP
RD 0 7 MU S 2 B T11 2
Q104
s t r ip line
5 0 T
APC SW
50T
APC
50R
7.49V
R:4.87V
T:0V
R 1 50
1 k
L 21 0
C228
C 2 2 6
1.5 p
1 p
R:4.87V
T:0V
R 3 21
I N
1 k
5
50R
X57-8050-XX
L118 L119 L214 R132
39n
-10 K,K2,K3 L34-4564-05 8.2n
-11 K4,K5,K6,E,E2,E3 L34-4565-05 6.8n 47n
Note : The components marked with a dot (
AU
SCHEMATIC DIAGRAM
5 0 T
R15 6
1 5 0k
R1 57
15 0k
APC SW
Q109
S SM 3K 15TE ( F)
Q106
RT 1N 441U - T1 11
APC SW
R:4.86V
T:0V
C 218
R225
Q2 02
3SK3 18
68
470 p
R:0.83V
D202,203
RF AMP
T:0V
BPF TUNE
CF2
R30 4
C 320 R35 4
oUT
0
0
0.1 u
C131 C135 C136 C138 C141 C144 C148
NO 39p 33p
NO 6p NO 7p 6p
5p
0 47p NO 8p
NO 33p 10p
•
) are parts of layer 1.
AV
D 102,103
ANT SW
C 149
R128 D102 C 1 51
*
0
H V C 131 10 0p
D 103
H V C 131
R:0V
T:4.95V
R 162
10k
1 oU T 1 8
VC C
2 I N 1 - 7
oU T - B
3 I N 1 + 6
IN 2-
4 V EE 5
IN 2+
IC 101
T A 75W 01F U F
OP AMP (APC)
R 2 3 3 C 246
R:4.82V 0 4 7 0 p
T:0V
R:1.95V
T:0V
R 235
0
R 2 13
IC 201
T C 75W 51F K (F )
100k
1
2
3
4 V SS
C 237
C157 C158 C160 C161 C163 C164
C149 C152 C153 C154 C156
47p 2.5p 2p 3.5p 3.5p 1.5p 2.5p 4p 4p
9p 5p 3p 6p
68p 3p 1p 8p 1p
AW
NX-320
L 114
L1 15 L116
4T 4T
4T
C 153 C 155
* C 15 7
*
3p
D 105,106
C 164
*
ANT SW
L1 19 R 1 3 2
* *
0
Q 108
S S M 3J 05F U - F
APC SW
R 1 6 4
100k
APC SW
S S M 3K 15T E ( F )
Q10 7
R167
2. 2k
R 1 66
0
C 251 C 260
*
1. 5p
D204,206
BPF TUNE
DC AMP (BPF)
V D D
8
- +
7
+ -
6
5
0. 1u
C225 C229
C230 C249 C256 C258
C259
1p 10p 3p
2p 18p 10p 10p 10p 6p
3p 22p 22p 2p 18p 4p 7p
NO 20p
AX
1
ANT
2
3
4
5
6
C260 C261
3p 6p
4p 7p
7
97
X57-805 8/8