81
SCHEMATIC DIAGRAM
NX-200
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
R748
10k
470k
R741
0.1u
C719
33k
R747
10k
R743
82k
R739
680p
C716
27p
C707
1000p
C734
15k
R771
33k
R778
47p
C804
6.8k
R785
1k
R790
ASQAPC
2SA1832(GR)F
Q701
ASQDET
PLD
OPT10
TC75W51FK(F)
IC702
0.1u
C723
68p
C706
0
R850
82k
R736
3300p
C713
1000p
C803
IN+B
IN-B
oUTB
VDD
5
7
8
6
VSS
4
IN+A
IN-A
oUT
A
2
1
3
TC75W51FK(F)
IC711
3
1
2
oUT
A
IN-A
IN+A
IN-B
oUTB
VDD
4
VSS
IN+B
6
8
7
5
R798 100k
10k
R803
C752 100p
C753 100p
330k
R799
0 01u
C760
C755 47p
ASQ DET
SSM3K15TE(F)
Q703
Q704
2SC4617(S)
0.01u
C802
0.22u
C771
1000p
C768
0.1u
C765
470
R808
1000p
C764
330k
R809
3.3k
R810
D705
RB706F-40
MA2S111-F
D702
10k
R819
39k
R824
°
-t
100k
TH701
R821 100k
C780 0.22u
180k
330k
R827
R826
oUT
VDD
TC75S51FE(F)
1
3
2
VSS
IN-
IN+
IC704
4
5
A
GND
TC7W53FK(F)
IC707
5
4
VCC
CH0
CH1
8
7
6
CoMMoN
INH
VEE
1
2
3
0
R426
1200p
C714
1u
C709
56k
R738
56k
R746
0.1u
C711
0.1u
C715
68k
R753
180p
C725
0
R766
0.1u
C726
47k
R777
0.01u
C745
1k
R793
47k
R735
C712
330k
R765
0.1u
C727
C724
10k
R750
560k
R754
A
0.01u
A
6.8k
R745
A
0.01u
A
BEEP
RXEI
RXEO
RXAF
/SCSW
AMT
5
7
8
6
IN+B
VSS
4
IC713
TC75W51FK(F)
VDD
oUTB
IN-B
IN+A
IN-A
oUTA
2
1
3
10p
C761
470k
R802
0
R804
470k
R800
0.1u
C756
100k
R815
1u
C778
100k
R818
0.01u
C779
1000p
C777
RXAF SMF
RF AF SW
A:VREF
/B:RX SUM
IC709
TC7W53FK(F)
VCC
1
CoMMoN
CH0
CH1
A
8
7
6
5
GND
VEE
INH
4
3
2
SSM3K15TE(F)
A
Q702
0.1u
C705
4.7k
R749
0.01u
C746
47k
R779
220k
R768
330k
330k
R770
0.01u
C732
0.01u
100k
R755
0.01u
C722
10k
R758
0.01u
C717
10k
R742
15k
C710
47k
R733
0.1u
0.01u
C720
TONE
TONESW
STSW
OPT6
AO
AI
OPT9
C704
R769
C731
0.01u
R737
A
1k
R797
47k
R805
47k
R806
82k
R81
1
1k
R807
560k
R814
0.01u
C763
VGS REC SEL
SIDETONE MUTE
1
VCC
CoMMoN
2
3
4
INH
VEE
GND
5
6
7
8
A
CH1
CH0
IC714
TC7W53FK(F)
0.1u
C708
24
18
33A
5A
W_/N
APC
10
2
1
TXO
TXO
IFADCN
IFADCN
SQL BPF/
SQL DC AMP
APC LPF
OPT SW
NOISE AMP
SQL
DETECTOR
NOISE
PLD
CONTROL
RX SUMMING AMP
1.65V REF/
SCSW(RXAF)
RX AF LPF
SMF
APC/ASQ
OPT SW
TONE SW
NOISE SW
W/N
9
9
9
13
13
13
14
14
14
14
14
14
15
15
15
15
16
16
16
18
18
18
19
19
19
20
20
20
21
21
21
22
22
22
22
23
23
23
23
23
X53-426 6/10
AD
AC
AB
AA
Z
CONTROL UNIT (X53-4260-XX)