Printed Wiring Boards - Key/Ir Repeater1 Boards; Schematic Diagram - Key/Ir Repeater1 Boards - Sony HT-ST5000 Service Manual

5-21. PRINTED WIRING BOARDS - KEY/IR REPEATER1 Boards -

• See page 79 for Circuit Boards Location.
1 2
KEY BOARD
(SIDE A)
A
R1905
C1903
S1905 S1904
+ –
B
KEY BOARD (SIDE B)
C
D
IR REPEATER1 BOARD
CN2601
CL2602
CL2601 1 2
E
D2601 D2602
D2601, 2602
(IR REPEATER)
HT-ST5000
• : Uses unleaded solder.
3 4 5
DSP BOARD (Page 81)
>17P
CN2404
CN1901 CN1902
6 1
2 1
JL1902
JL1901 JL1903
JL1904
R1901 R1903
R1902 R1906
R1904 C1901
C1902
S1906 S1903 S1902 S1901
S1901 - 1906
11
1-981-728- (11)

5-22. SCHEMATIC DIAGRAM - KEY/IR REPEATER1 Boards -

1
6
A
11
(11)
1-981-725-
B
DSP
BOARD
(4/4)
11
(11) C
1-981-725-
D
E
F
91 91
2 3
KEY BOARD
CN1902
2P
REMOTE_REP1 2
UNSW3.3V 1
CN1901
6P
UNSW3.3V 6
IR-REPEATER_1 5
JL1901 R1901 1k
KEY2 4
JL1902 R1902 1k
KEY1 3
JL1903 R1903 1k
KEY0 2
JL1904
DGND 1
C1901 C1902
0.1 0.1
S1901
IR-REPEATER1 BOARD
D2601
SIR-34ST3FL
(IR REPEATER)
R2601
39
R2602
39
D2602
SIR-34ST3FL
CN2601
(IR REPEATER)
2P R2603
39
CL2601
UNSW3.3V 1
CL2602
REMOTE_REP1 2
R2604
39
HT-ST5000
4 5 6
R1904 R1906 R1905
2.2k 1k 2.2k
C1903
0.1
S1902 S1903 S1906 S1904 S1905
– +