Harman Kardon HK 990/230 - Page 16

1
2
3
CN15
3P(2.0)
L3
10uH
L2 10uH
L1 10uH
1
2 3
4
IC5
LTV817A
R24
47K
R22
47
R23
47
R28
270
R25
75
R26
10
R27
3K9
C31
100U10V
C30
104
C34
104
C33
104
C32
47U10V
TO MCU BOARD
1
2
3
JK1
CKX3.5-12A 3.5mm
1
2
3
JK2
CKX3.5-12A 3.5mm
IR IN/OUT BOARD
REMOTE
DGND
REMOTE
MCU+5V
Q5
A1015
1
2
3
4
5
CN12
5P(2.0)
C49
104
DCD
1
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
10 11
JK3
DB-09
C1+
1
V+
2
C1-
3
C2+
4
C2-
5
V-
6
T2out
7
R2in
8
R2out
9
T2in
10
T1in
11
R1out
12
R1in
13
T1out
14
GND
15
VCC
16
IC8
MAX232CDR
C4
104
C48
104
C35
104
C15
104
C8
104
+5v
+5v
RX
GND
TX
TO Preamp
RX
TX
MCU1
MCU2
1 3 5
2 4 6
K16
SK-22H03G6-RS
R86
22K
R88
22K
R89
22K
R87
10K
IR OUT
IR IN
D5
1N4148
D6
1N4148
Q17
A1015
114