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96
NX-800/800H
SCHEMATIC DIAGRAM
X54-364 2/3
CC CD CE CF CG
-9.69V
2.23V
4.86V
5.02V
ON HOOK
: 0V
5.02V 5.02V
5.02V
5.02V
8.00V
5.02V
7.87V
5.02V 3.31V
0V
5.00V
R :0V
T : 5.00V
0.76V
4.99V
R :1.98V
T : 0VT : 1.86V
R :0V
T : 0V
R : 5.00V
7.27V
8.00V 7.97V
PREVENTION(HK/RXD)
GND
100
VoUTGND
BUFFER AMP
(LCD CONTRAST ADJ)
C945
0.01u
5C
C933
PROTECTION
5
C943
C1-NC
1000p
C934
4.7u25
(PTT/TXDO)
C935
4.7u25
7
1u
LINE
43
C2-VIN
6
C944
1
C2+C1+
8
2
4.7u25
1
OUTPUT
V-
INPUT+INPUT-
V+
2
3
PTT/TXDO
HK/RXD
C913
DM/KVL
0.1u
RXD1
100
R999
Q901
(TXD0)
270k
R940
R906
330
IC906
DC/DC CONVERTER
R933
10k
R926
DA204U
D913
45
LM2682MMX
(N100C)
47k
R908
100k
R907
HK/RXD0 SW
1k
R905
AFO SW
SSM3K15TE(F)
AFO/BLC SW
BUCNT1VCC
G
0.1u
C926
47k
R934
1
2
GND
INA
4
5
oUTY
TXD0
RXD0
3
470k 120k
LMC7101BIM5
IC909
-t °
R929 R941
100k
TH901
100k
R909
1SS416
D910
oUT IN1 CoNT1
6
54
3
GND
CoNT2 oUT_IN2
IN_oUT2
DTC144EE
Q904
DTC144EE
Q902
8
7
VCC
1
2
IN oUT1
IC905
TC7SH126FU-F
BUS BUFFER
TXD1
5C
0.1u
IC901
TC7W66FK-F
R927
47k
33k
R912
4.7k
R911
C917
5C A1 18
G1
VCC
0.1u
C927
BUCNT2
47k
R935
Y2G2
Y16
7
3
2
/PRST
R956
R954
R937
DIMMER SW
B30-2304-05
D914
47k
R936
(AFO)
10k
R916
TC7SH08FU-F
/PRST
5C
TXD
RXD
D910
REVERSE CURRENT
BUFFER
IC907
A25
TC7WH126FU-F
DUAL BUS
(RXD0/RXD1)
4
PTT/TXD0
DM/KVL
LCDADJ
0.1u
C929
0.1u
C928
120p
C920
100k
R914
3
R915
47k
0.1u 82k
4
oUTIN-
(TXD1/RXD0)
AND GATE
R917 10k
0.1u
C921
2
1
C919
1000p
C918 R913
5
VSS
IN+
VDD
IC902
TC75S51FE(F)
INA 1
INB
5
VCC
2
3
GND
4 oUTY
BLC2
AFOSW
8C
C939
1u
10u
C964
0.1u
C940
15
5C
AF BUFFER AMP
5C
IC908
VOLTAGE
REGULATOR (33C)
NCVoUT
1u
C916
4
NC
3
CE
5C
33C
L903
VIN
REGULATOR
VOLTAGE
(5C)
2
CE
VSS
10
4.7u
C915
IC903
34
R918
XC6204B502PR
L908
51
VOUT
2
1u
VSS
VIN
10k
R930
C930
IC904
XC6204B332M
10k
R919
RED
GREEN
DIMM
BLC1
SSM3K15TE(F)
1000p
C942
(LCD BACK LIGHT)
Q911
DTC114EE
Q909
8C
SW
B30-2282-05
B30-2282-05
B30-2281-05
B30-2281-05
B30-2281-05
B30-2281-05
(TX)
820
R966
820
R965
R964
390
390
R963
270
R958
270
R957
270
R955
270
R953
LED
TX/RX
5C
Q909,911
100
47
47k
BACK LIGHT
C941
1000p
1000p
C932
1000p
C931
Q908
DTC114EE
DTC114EE
Q906
DTC114EE
Q905
D915-926
LCD
R939
10k
BACK LIGHT
B30-2282-05
B30-2282-05
D928
D927
D918
D917
D916
D915
D930
D929
D934
D932
D926
D924
D922
D920
D927-936
KEY
D936
D935
R938
470
R932
560
R931
(BUSY)
TX/RX LED
TX/RX LED
LIGHT
LCD
BACK
10k
12A02CH
Q910
D931
D933
D923
D925
D919
D921
LCD KEY
+
+
+
19
18 18
17 17
19
16
15
15 15
16
15
16
DISPLAY UNIT (X54-3640-10)