Kenwood NX-800H Service Manual page 94

BS
NX-800/800H
TX-RX UNIT (X57-739X-XX) (A/2)
SB
IC715
LA4425A
13.54V
1.34V
6.38V
R831
0
PA
HOR
C810
470p
12 AIO6
C598 1000p
9
AIO6
AIO7
C599 1000p
AIO7
AIO1
C600 1000p
AIO2
C601 1000p
RXD2/DI
AIO3
C602 1000p
TXD2/AUXIO9
AIO4
C603 1000p
AIO8
C604 1000p
AIO5
C605 1000p
R654
AIO9
0
AO1
C606 1000p
TXD0
AO2
C607 1000p
RXD0
ME
MI2
DEO
C608 100p
C609 1000p
DI/RTS
AFO
C610 100p
F501
2A
9
MI1
ME
94
X57-739 (A/2) 15/16, X57-739 (B/2) 1/1
BT
SCHEMATIC DIAGRAM
CN705
1 SB
2 SPI
3 SPO
4 PA
5 HOR
6 GND
TX-RX UNIT (X57-739X-XX) (B/2): D-SUB25
D901
J701 LINE
PROTECTION
(BER CK)
EXT.SP
D902
LINE
PROTECTION
(BER DT)
CN600 CN901
30 AUXIO6/BER CK 1
29 AUXIO7/BER DT 2
28 AUXIO1 3
27 AUXIO2 4
RXD2/DI
26 5
25 AUXIO3 6
TXD2/AUXIO9
24 7
23 AUXIO4 8
22 AUXIO8 9
21 AUXIO5 10
AUXIO9/CTS
20 11
19 AUXO1 12
18 TXD0 13
17 AUXO2 14
16 RXD0 15
15 GND 16
14 ME 17
13 MI2 18
12 DEO 19
11 GND 20
A
10 50C 21
DI/RTS
9 22
8 AFO 23
7 SB 24
6 SB 25
5 SB 26
4 SB 27
3 SB 28
2 SB 29
A A
NC/RSSI
1 30
OVER DC
SUPPLY
PROTECTION
BU
D903 D907 D911
LINE LINE LINE
PROTECTION PROTECTION PROTECTION
(AUXIO1) (AUXIO3) (AUXIO8)
D904 D908 D912
LINE LINE LINE
PROTECTION PROTECTION PROTECTION
(AUXIO2) (AUXIO4) (AUXIO5)
A
R902
100
R903
100
R904
470
R905
470
R906
470
R907
470
R908
470
R909
470
R910
470
R911
470
R912
470
OVER DC
R913
SUPPLY PROTECTION
470
L901
A
A A L902
REVERSE REVERSE
CURRENT CURRENT
PREVENTION PREVENTION
A
(SB) (SB)
A
Q901 Q902
QSX6 QSX6
R901 R914
470 470
DC SW DC SW
A
(AUXO1) (AUXO1)
OVER DC
SUPPLY
PROTECTION
9
BV BW
13
C911 100p
12
C912 100p
J901
24 27
C913 100p
13
23 13
25
C914 100p
25
12
10 12
C915 100p 24
24
11
22
23
C916 100p
23
10
9 10
22
C917 100p
22
9
21 9
21
C918 100p
21
8
8 8
20
C919 100p
20
7
20
19
C920 100p
19
6
4 6
18
C921 100p
5
5
17
17
3
4
C909 100p
4
16
16
3
3
2
15
C910 100p
15
2
2
14
19
6
1
26
A A
25
5
17
16
15
A
OVER DC
SUPPLY
PROTECTION
9
MI1
ME