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Sony Manuals
Stereo Receiver
STR-DB925
Service manual
Ic Block Diagrams - Sony STR-DB925 Service Manual
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Also See for STR-DB925
:
Operating instructions manual
(216 pages)
,
Service manual
(16 pages)
,
Service manual
(9 pages)
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STR-DB925
3-24. IC BLOCK DIAGRAMS
IC103 BA6208
MOTOR
SWITCH
DRIVE
MOTOR
SWITCH
DRIVE
REG
1
2
3
4
5
6
7
8
IC104 MSC1162AGS-BK
HVO1
1
60
HVO40
HVO39
HVO2
2
59
HVO3
3
58
HVO38
HVO4
4
57
HVO37
HVO5
HVO36
5
56
HVO6
6
55
HVO35
HVO7
7
54
HVO34
HVO8
53
HVO33
8
HVO9
HVO32
9
52
HVO31
HVO10
10
51
HVO11
11
50
HVO30
HVO12
12
49
HVO29
HVO13
48
HVO28
13
HVO14
47
HVO27
14
HVO15
15
46
HVO26
HVO16
16
45
HVO25
HVO17
17
44
HVO24
HVO18
18
43
HVO23
HVO19
19
42
HVO22
HVO20
20
41
HVO21
VHV
21
40
VHV
GND1
22
39
GND1
GND2
23
38
GND2
CL
24
37
NC
NC
25
36
CHG
LS
26
35
NC
NC
27
34
CLK
R/L
NC
28
33
DIN
29
32
DOUT
VCC
30
31
VCC
IC201 NJM2296D
V+
Vout2
SW1
Vin1
GND
Vout3
SW2
Vin2
16
15
14
13
12
11
10
9
S6
S7
S1
S2
S4
S5
S3
1
2
3
4
5
6
7
8
Vout1
SW5
Vin5
SW3
Vin4
SW4
Vin3
V-
IC105 MSC1164GS-KR1
NC
1
32
2
31
NC
D
30
Q
3
DOUT
CK
29
CK
9
LS
4
28
CL
5
V
CC
6
7
HVO20
HVO19
8
HVO18
9
27
HVO17
10
HVO16
11
26
HVO15
12
25
HVO14
13
24
HVO13
14
23
HVO12
15
22
HVO11
16
21
20
19
18
17
IC301 LC7822
1
IN
2
3
OUT
4
5
IN
6
7
OUT
8
9
IN
10
OUT
11
LEVEL SHIFT
12
VEE
CE
13
LATCH
DI
14
SHIFT RESISTOR
CL
15
– 57 –
IC303 LC7823
1
L1
2
L2
NC
CHG
3
L COM1
DIN
4
L3
5
L4
CLK
L COM2
6
L5
7
8
L6
L COM3
9
L7
10
GND
L COM4
11
LEVEL SHIFT
12
VEE
LATCH
CE
13
D1
14
Vhv
SHIFT RESISTOR
CL
15
HVO1
HVO2
HVO3
HVO4
HVO5
IC414 TC9299P
HVO6
HVO7
HVO8
VSS
1
HVO9
OUT
2
HVO10
IN
3
L-CH
L-ch
DATA
NC
4
LATCH
A-GND
5
CIRCUIT
SHIFT
REGISTER
30
6
CS1
LEVEL
(13bit)
GND
7
SHIFT
29
IN
STROBE
CIRCUIT
8
CK
GENERATOR
28
CIRCUIT
27
OUT
26
25
IN
IC501 uPC2581V
24
23
OUT
22
BIAS CIRCUIT
IN IN
21
PROTECTOR
20
OUT
PRE
PRE
REG DRIVE
19
VDD
DRIVE
DRIVE
DRIVE
18
RESET
2 3 4 5 6
1
7
8 9 10 11 12 13 14 15
17
S
16
VSS
IC901 NJM2103D
30
R1
29
R2
CR
1
28
R COM1
27
R3
26
R4
VSC
2
VREF
25
R COM2
+ –
24
R5
23
R6
OUTC
3
22
R COM3
21
R7
20
R COM4
GND
4
19
VDD
18
RES
S
17
16
VSS
IC1005 TC74HC151AF (EL)
1
16
VDD
D3
15
OUT
2
D2
D3
D4
D2
R-CH
14
IN
R-ch
3
DATA
D1
D1
D5
13
NC
LATCH
12
A-GND
CIRCUIT
D0
4
D0
D6
Y
5
Y
D7
XY
6
W
A
11
CS2
LEVEL
OE
7
S
C
B
SHIFT
10
STB
CIRCUIT
9
DATA
GND
8
IC1006 TC74HC08AF (EL)
1A
1
1B
2
1Y
3
2A
4
2B
5
6
2Y
GND
7
– 58 –
8
RESET
– +
7
VSA
6
VSB/SESIN
V+
5
Q
R
S
+
–
+
–
16
V
CC
15
D4
14
D5
13
D6
12
D7
11
A
10
B
9
C
VCC
14
13
4B
4A
12
11
4Y
10
3B
9
3A
8
3Y
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