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SCHEMATIC DIAGRAM
NX-800/800H
X57-739 (A/2) 14/16
BRBQBPBOBN
5.01V
5.01V
3.31V
4.98V
4.98V
4.98V
0V
G1
GND
A1
Y2
R636
0
4
1
2
3
R642 100k
R641 100k
R638 100k
R637 10k
R639 1k
C613
0.01u
Y1 5
A2
LEVEL SHIFT
(TXDO/RTSO)
C594
0.01u
G2
VCC
TC7WT126FU-F
IC515
7
8
6
470k
R689
R690
470k
DRIVER
RS-232C
C612
1u
LEVEL SHIFT
D510
D509
1SS416
1SS416
(RXDO/CTSO)
R652
C595
TC7WH126FU-F
G1
A1
GND
Y2
1
2
4
3
8
7
VCC
Y1 5
A2
G2 6
IC516
R656
470
0.01u
ADM202EARNZ
R2oUT
T2IN
T1IN
T1oUT
GND
R1oUT
R1IN
VCC
11
14
15
12
13
16
9
10
T2oUT
C1-
C2+
C2-
V-
C1+
V+
3
4
5
6
1
2
C615
1u
C616
1u
IC518
R2IN
7
8
C614
1u
D507
PROTECTION
LINE
BUFFERAMP (TXD2)
D508
DA204U
IC513
TC7SET08FU-F
1SS416
R678
100k
GND
INB
INA
3
2
1
R650
0
C592
100p
C593
100p
C618
0.01u
R644
0
oUTY
VCC
4
5
R658
0
REVERSE
PREVENTION
(OR G RXD2)
1SS416
(I2CCK/I2CDT)
LEVEL SHIFT
IC514
TC7WBD125AFK
C591
0.01u
VCC
CURRENT
D506
R640
10k
1
4
3
2
oE1
B2
GND
A1
EXPANDER
IC517
P16P02
DA204U
D511
R842
1k
R651
1k
24
C596
0.1u
1
2
3
P00
P01
A2
8
6.8k
R646
A2
B1
oE2
5
6
7
R648
6.8k
16
17
18
19
20
21
22
23
I/O
P17
A0
SCL
SDA
VCC
INT
A1
R659 100k
R660 100k
R671
R669 100k
R668 100k
R667 100k
R666 100k
R665 100k
R664 100k
P06
4
5
6
P03
P04
P05
R670
100k
7
100k
PROTECTION
LINE
(AID9)
13
14
15
P10
P11
P12
P07
GND
P14
P15
P13
11
12
8
9
10
DA204U
D512
R661 100k
R673 100k
R672 100k
R674 100k
C820
1u
SW
DC
DTC114EE
R823
4.7k
Q709
Q710
DTC363EU
C801
1u
R825
10k
R827
3.3k
R663 470k
R662 470k
AF
MUTE
R828C802
1u 0
10k
R826
AO2
AO1
AIO9
AIO8
AIO7
AIO1
AIO2
AIO3
AIO4
AIO5
AIO6
I2CDT
I2CCK
/INT25P
RXD2
G_RXD2
TXD2
PREVENTION
(OR RXD2)
CURRENT
REVERSE
25P_TXD2
AIO6,AIO7
100k
CURRENT
PREVENTION
REVERSE
CTS0
RXD0
RXD3
26P_RD
RTS0
TXD0
26P_TD
50C
33M
50C
50C
33M
50MC
50M
SB
HOR
PA
MI2
MI1
ME
AFO
AFO
/INAMT
DI/RTS
DEO
MI2
ME
RXD0
TXD0
TXD2/AUXIO9
RXD2/DI
SB
ME
MI1
DI
DEO
LINE
(RXD2)
PROTECTION
9
99
9
9
12 12
12
99 9
13
13
TX-RX UNIT (X57-739X-XX) (A/2)