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NX-800/800H
SCHEMATIC DIAGRAM
X57-739 (A/2) 3/16
K L M N O
W : 0V
N : 3.29V
W : 0.99V
N : 1.09V
W : 2.89V
N : 0.29V
4.97V
W : 0.99V
N : 1.09V
4.92V
W : 3.27V
N : 0.02V
0.66V
4.86V
4.35V
0.74V
4.87V
4.98V
1.65V
1.65V
4.21V
T : 3.31V
R : 0.02V
R : 0V
T : 3.47V
T : 0V
R : 3.21V
0.74V
R : 3.07V
T : 3.05V
3.94V
470p
5
4
3
2
1
8
9
7
6
12
11
10
R215
SW
C201
(W/N)
0.01u
Q202
DTC144EE
C204
0.1u
SW
(W/N)
Q201
DTA114EE
C202
0.1u
R201
CF SW
(W/N)
15k
R203
22k
C332
0.1u
DAN235E
D201
C203
0.1u
0.1u
IN
L72-1021-05
R344
1.5k
CF202
R327
oUT
R324
1.8k
0
Narrow
R325
R208
15k
C333
0.1u
3.3k
R206
22k
(W/N)
CF SW
D202
DAN235E
0.1u
1.8k
2.7k
EMD9
Q212
R331
47k
R329
5.6k
C336
10k
0.01u
R213
1k
R204
47
R328
1k
C205
0.1u
R202
22k
C330
C348
0.01u
R346
22k
IN
L72-1017-05
R343
CF201
WIDE
oUT
R205
22k
C331
R207
330k
2SC5636
Q203
10p
C206
C207
0.01u
L202
560n
C208
0.01u
C214
68p
R332
0
C211
10p
CD201
C343
10u
C342
0.1u
R330
10
0
R219
C227 82p
C219 4.7u
C218 4.7u
C225
0.1u
R216 C228 0.1u
C217 0.1u
R338 10k
R210 10
R333
100n
L201
C216
68p
C220
47p
L204
C215
100p
47n
C222
0.01u
0
R353
C210
0.1u
1k
C223
0.01u
FM_DET
10u
C226
10u
C221
C231
0.01u
C229
0.1u
C358
1000p
R224 10k
C338 0.1u
C337 0.1u
R225 15k
22k
C233 1u
R82
R345
GND
OSC<E>
FMIFi
AGCAMPo
AMDETo
FMIFdecp1
FMIFdecp2
FMDETo
QUADi
LIMo
RFAGCo
AMSW
RSSIo
16
17
13
14
15
AMIFi
VCC
MIXo
AMIFdecp
COMPi
COMPo
AGC
NAMPi
NAMPo
21
22
18
19
20
R228
R230
22k
R223
270k
R227 100k
C232 0.1u
C341
1u
R334
0
47k
TK10931VTL-G
IF IC
IC202
OSC<B>
R226
RFin
23
24
C339
0.01u
R234
10k
Q204
2SC3356(R23)
IF AMP
1st
R235
0
R237
100k
0.01u 470p
L205
C234
0.01u0
560n
R232
100
C238 C237
R231
220
L206
1
2
4
3
R34
1k
R26
100k
470p
VCO_MOD
VCO MODULATION/
BUFFER AMP (CV)
C48
1u
R45
100k
8
7
5
6
VSS
VDD
R42
R44
0
C47
47p
C54
0.1u
IC5
TC75W51FK(F)
100k
C56
4.7k
10u
C65
/T_R
2SC5383-T111
R55
Q4
0
C71
1u
L20
R83
0
R60
1k
220n
L15
1SV282-F
220n
L11
1SV325F
C61
0.5p
L41
L40
C31
100p
R352
0
R27
47k
R28
68k
R41
L3
D4
10u
L7
0
C45
100p
1SV325F
C51
150p
1SV282-F
C43
470p
D12
180n
L14
R49
68k
C55
1u
R54
47k
R53
47k
470p
180n
L12
R85
0
1SV282-F
D8
D11
C41
D4,8,11,12
D10
220n
L13
C58
12p
180n
L16
1SV282-F
TX VCO
C60
0.75p
R40
D3
C44
100p
10u
L6
0
C50
150p
R84
0
D9
1SV282-F
D7
D3,7,9,10
C59
15p
1SV282-F
27n
L25
2SJ347F
Q8
1SV278F
SSM6L05FU-F
R56
470k
MODULATION
TX
D14
T/R SW
(VCO)
470p
C75
Q7
R61
47k
C63
0.75p
Q9
2SC5636
R63
100
C80
470p
R62
150k
C81
10p
C79
7p
2nd LOCAL
BUFFER AMP (X3)
50R
50C
50R
33C
50C
39000
150
R32
10u20
C35
0.15u35
C32
0.047u35
C37
R29R25
10k
R37R35
RIPPLE
FILTER
C77
CONTROL
FREQUENCY
(VCO)
BUFFER AMP
FREQUENCY
CONTROL
CV
RX
TX
C8
8p
R71
470k
C12
8p
L17
17.5n
C67
6p
3p
C72
L23
180n
R59
180
5p
C69
L21
180n
470p
C73
R153
120
C78
470p
2SK508NV(K52)
Q6
VCO
L19
R58
180
R57
220n
C66
6p
470p
C70
C68
4p
L22
220n
Q5
2SK508NV(K52)
VCO
180
C64
7p
L18
22n
RX VCO
0.5p
C76
0.5p
C74
L79-1850-05
W_/N
VCO_MOD,/T_R
+
+
+
1 11
22
222
TX-RX UNIT (X57-739X-XX) (A/2)