96
NX-320
SCHEMATIC DIAGRAM
X57-805 7/8
AO
AP
AQ
AR
AS
R:0V
T:1.78V
R:0V
T:2.29V
R:0V
T:0.81V
R:0V
T:3.85V
R:0V
T:3.30V
R:4.54V
T:0V
R:3.33V
T:0V
R:2.90V
T:0V
R:1.52V
T:0V
R:0.68V
T:0V
RX:4.68V
TX:0V
R:3.84V
T:0V
R:3.44V
T:0V
R:0.68V
T:0V
R:1.99V
T:0V
R:4.87V
T:0V
R:0V
T:4.98V
R:0V
T:4.88V
/DSW
PDSW
/T_R
ASQ
ASQDET
RSSI
+B
50T
D412
HSC277
R457
4.7k
D 4 1 3
H S C 2 7 7
R331
10k
L 3 0 8
I C 3 0 2
T K 1 0 9 3 1 V T L - G
1
OSC-B
2
OSC-E
3
MIXout
4
Vcc
5
AM-IFin
6
AM-DCPL
7
FM-IFin
8
FM-DCPL1
9
FM-DCPL2
1 0
LIMout
1 1
QUADin
1 2
FM-DETout
1 3
AM-DETout
1 4
AMSW
1 5
RSSIout
1 6
RF-AGCout
1 7
AGCAMPout
1 8
AM-AGCin
1 9
NOISEin
2 0
NOISEout
2 1
COMPin
2 2
COMPout
2 3
GND
2 4
RFin
R209
100k
C 3 4 3
C 3 1 3
3 3 p
C 3 2 3
0 . 1 u
R 3 2 9
2 2 k
C308
100p
C 3 1 9
0 . 0 1 u
C318
68p
R210
220k
C 3 1 6
0 . 1 u
C321
0.1u
2SC5108(Y)F
Q 3 0 1
C202
0.01u
C350
470p
C303
0.1u
C215
470p
L 3 0 2
5 6 0 n
C 3 4 1
0 . 1 u
R 3 3 0
1 8 k
C 3 3 8
0 . 0 1 u
R208
C204
4.7u
R 3 0 5
1 0
R 3 2 7
1 0 k
2 S C 4 2 1 5 - F ( Y )
Q 3 0 3
L307
1.5u
L306
100n
C311
150p
R 3 0 1
5 6 0
C330
0.1u
R 3 4 0
5 6 0 k
C205
470p
C 3 2 7
1 0 p
R 3 3 5
2 2 0
R 3 1 0
1 0 k
C 3 4 0
0 . 1 u
C 3 1 5
0 . 1 u
C 3 2 2
0 . 1 u
C302
0.01u
R 3 0 6
3 3 0 k
L201
C 3 3 9
0 . 1 u
C324
10u
R320
270k
C 3 1 0
1 0 0 p
C F 1
I N
o U T
C351
0.01u
C317
10u
C 3 1 4
0 . 1 u
C332
0.01u
R 3 2 6
1 0 0 k
R 3 2 8
4 . 7 k
R207
100k
L206
R 1 4 7
5 6 0
L103
22n
C110
470p
R 1 4 9
1 k
R146
0
2SC5383-T111
Q 1 0 5
R110
10k
C112
0.1u
C175
0.1u
C 1 0 6
C 1 0 2
4 7 0 p
C101
470p
C111
470p
R112
560
C173
470p
R 1 4 4
2 7 k
R101
4.7k
C 2 1 6
4 7 0 p
L207
8.2n
C 3 5 4
0 . 0 1 u
R338
100
R 3 5 2
1 0 k
R349
1k
C346
47p
C359
47p
R 3 4 4
6 . 8 k
C N 3 0 1
I C 3 0 4
T C 7 5 W 5 1 F K ( F )
1
o U T A
2
I N - A
3
I N + A
4
V S S
5 I N + B
6 I N - B
7 o U T B
8 V D D
R351
100k
R332
47k
R341
100k
R141
470k
R143
1k
R142
470k
Q 1 1 0
S S M 6 L 0 5 F U - F
R 1 0 2
0
R114
27
2 S C 4 9 2 6 Y D
Q 1 0 2
C201
0.01u
R201
47
R 2 0 3
6 8 0
C210
0.01u
R 3 4 5
2 7 0
R205
C357
18p
R 3 4 6
2 7 0
C356
3p
C 3 5 3
0 . 0 1 u
C207
470p
L202
3 S K 3 1 8
Q 2 0 1
C 3 6 0
0 . 0 1 u
C203
470p
X F 1
49.95MHz
C358
6p
C212
R 2 0 4
4 . 7 k
C214
C 2 1 1
2 p
C208
6p
C 2 1 3
2 p
R117
470
C119
470p
R118
47
R D 0 1 M U S 1 - T 1 1 3
Q 1 0 3
R124
33k
C 1 1 4
C 1 2 0
1 0 0 p
R 1 1 5
1 2
R116
470
R119
39k
L 1 0 4
R121
330
L106
C121
470p
C 1 1 3
C115
R111
C209
12p
L 2 0 3
2 7 0 n
C398
10p
R 3 0 2
1 k
C 3 0 1
0 . 0 1 u
C 3 0 7
1 0 p
C109
R11
3
22
C217
R245
1k
BPF
C293
470p
C122
470p
R123
33k
R120
22k
C116
470p
R122
27
D101
HZU5CLL
R 1 4 8
1 k
C174
2.2u
L 2 0 4
L 2 0 5
R 3 0 8
0
L 3 0 5
5 6 n
L105
22n
C170
470p
R 4 7 5
0
R355
8.2k
R356
8.2k
R 3 5 7
8 2 0
RSSI
470p
560n
0 . 4 7 u
T/R SW
D 4 1 2 , 4 1 3
PD SW
PRE DRIVE AMP
DRIVE AMP
APC SW
APC PROTECT
IF AMP
TRIPLER
FM SYSTEM
MIXER
DC AMP (RSSI/ASQL)
33A
50T
50R
50T
50R
+B
C11
8
OSC
APC
APC
5
APC SW
R 1 26
0
C124
*
R 1 70
C 1 0 7
R 4 7 4
0
D201
1SV305F
C219
C22
0
R24
1
1M
C223
470p
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
L102
*
*
C
362
100p
C
361
100p
5
L102
K,K2,K3
X57-8050-XX
-10
-11 K4,K5,K6,E,E2,E3
NO
R1
R2 R111 R170 R205 R208 C106
0
R 2
R 1
*
*
L104 L204 L205 L206
C107 C113 C114 C115 C118 C124 C212 C214 C217 C219 C220
NO
NO
NO
0
8.2n
12n
18n
18n
18n
15n
15n
18n
22n
0
2.7k
2.2k
180k
270
220
150k
22p
15p
12p
15p
6p
12p
10p
22p
3p
NO
NO
12p
18p
27p
10p
12p
7p
8p
3p
4p
1p
3.5p
18p
10p
TX-RX UNIT (X57-8050-XX)