Printed Wiring Boards - Io/Usb Section; Schematic Diagram - Io/Usb Section - Sony HT-ST9 Service Manual

HT-ST9
5-9.

PRINTED WIRING BOARDS - IO/USB Section -

• See page 61 for Circuit Boards Location. •
1 2
IO BOARD
(COMPONENT SIDE)
A
JL1701
JL1702
JL1704
R1704
C1704
JL1703
1
FFC2
(Page 62)
JL1705
>04P
JL1707
JL1706
MB1406 R1707
C1706
C1705
BOARD
R1710
9
R1708
CN701
B R1721
E R1709
R1716
Q001
R1720 C1702
REPEATER_REP2
R1719
JL1711
4
BOARD
R1722
R1703 JL1713
JL1708
REPEATER_REP1
1
R1711
BOARD
CN1703
C1701
CA1701
1-893-922-
(CHASSIS)
C
USB BOARD
(SIDE A)
WR1
MB1406
>05P
BOARD
R1502
FB1501
1
CN1502
K A 4
CN1501
D1502
A/K
K/A
D
D1501
5
A K 1
CL1503
C1502
HT-ST9
: Uses unleaded solder.
3 4
IO BOARD
(CONDUCTOR SIDE)
CN1701
2
TV
3
DIGITAL IN
1
J1701
ANALOG IN
11
(11)
1-893-922-
USB BOARD
(SIDE B)
(Page 62)
CN501
(CHASSIS)
11
(11)
1-893-926-
Note: When the REPEATER_REP1 or REPEATER_REP2 boards are
defective, replace the complete mounted board.

5-10. SCHEMATIC DIAGRAM - IO/USB Section -

1
A
CN1701
GND
TV VOUT
DIGITAL IN
VCC
B
J1701
ANALOG IN
C
(CHASSIS)
11
D
(11)
E
WR1
F MB1406
BOARD
(4/6)
11
(11)
1-893-926-
66 66
2 3 4
IO BOARD
JL1701 R1704 100
2 JL1702
1
C1705 1
3
C1704
0.1 R1707 R1708
15k 15k
C1706
1
JL1714
R1702 R1721
2.2k 18k
JL1713
JL1715
R1703 R1720
2.2k 18k
C1701 C1702 C1703
1000p 220p 220p
100V
CA1701
R1711 R1722
33 33
R1709
0.6
100
0
Q001
R1710 2SCR502UBTL
10k
LED DRIVE
USB BOARD
C1501 C1502
220p 220
CN1501 R1504 6.3V
5P 0
FB1501
GND 1
DP 2
DM 3
VBUS 4
CL1501
FB1502 C1503
SHIELD GND 5
220p
CL1502
Note: When the REPEATER_REP1 or REPEATER_REP2 boards are
defective, replace the complete mounted board.
5 6 7
CN1702
9P
JL1703
1 D3.3V
JL1704
2 OPT
3 DGND FFC2
JL1705
4 Lch
MB1406
BOARD
5 AGND
JL1706 (3/6)
6 Rch
JL1707
7 AGND
JL1708
8 IR3.3V
JL1709
9 IR
CN1703
C1707
4P
10
1 IR3.3V
REPEATER_REP1
JL1710
BOARD
2 REMOTE_REP1
3 IR3.3V
REPEATER_REP2
JL1712
BOARD
4 REMOTE_REP2
R1719 R1716
10 10
JL1711
4
CN1502
3
2
1
R1502 CL1503
0
(CHASSIS)