Ic Block Diagrams - Sony STR-V220 Service Manual
Fm stereo/fm/am receiver
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Also See for STR-V220:
- Service manual (28 pages) ,
- Operating instructions manual (24 pages) ,
- Operating instructions (2 pages)
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STR-V220
Q Q
3 7 6 3 1 5 1 5 0
4-10. IC BLOCK DIAGRAMS
• Main section
IC301 LV1035M
64 63 62
61
60
59
58
57
R BPF2
1
RECT
LOGIC
R BPF1
2
BPF
RECT
FF
LOGIC
VCA
VCA
S DC OUT
3
VCA
VCA
C DC OUT
4
R DC OUT
5
6
L DC OUT
V REF
7
V REF
S
MODE
VCC
8
C OUT
STRIM
9
C
T E
L
1 3 9 4 2 2 9 6 5 1 3
S OUT
S
10
A
A
R
11
R
R OUT
B
B
A
A
L
12
L
B
L OUT
B
GND
13
A
B
A
L IN
14
L
B
A
A
A
R IN
15
S
R
B
B
B
S IN
16
S
A
S
A
B
S
R
w w w
17
18
19 20 21
22
23
56
55
54
53
52
51
50
RECT
LOGIC
RECT
FF
LOGIC
VCA
VCA
A
VOL
B
VCA
VCA
A
VOL
B
CH
CONTROL
BPF
CONTROL
C MODE
NOISE
FILTER
NOISE
GEN
STRIM
B NR
A
S
DATA
DC
VOL/
DECODER
CUT
OUT
MUTE
FILTER
C
B
A
IN
FILTER
B
SRAM
PCM
CONTROL
A
B
B
L
PCM
VDD
24
25
26 27 28 29
30
31
x
a o
.
i
– 23 –
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IC401 LC7822
1
IN
2
3
OUT
49
4
5
48
L BPF2
IN
6
7
BPF
47
L BPF1
OUT
8
9
IN
10
OUT
11
12
VEE
CE
13
R
46
RT IN
DI
14
SHIFT RESISTOR
CL
15
L
45
LT IN
IC501 LA1838
44
DC CUT
C MODE
43
42
GND
41
NS BPF1
Q
Q
30
29
28
27
26
40
NS BPF2
3
7
REG
OSC
39
OSC
ALC
AM
AM
AM
DEV
RF. AMP
OSC
MIX
BUFF
SD
COMP
AM
38
CLK
IF
AM/FM
IF
DATA
37
FM
S-CURVE
BUFF
S METER
FM
FM
ENABLE
36
IF
DET
DATA
35
2 3
4
1
34
CLK
33
VSS
32
u 1 6 3
y
http://www.xiaoyu163.com
2
4
8
9
9
IC950 NJM2103D
30
29
IN
CR
1
28
OUT
27
26
VSC
2
25
IN
+ –
24
23
OUT
OUTC
3
22
IN IN
21
20
OUT
GND
4
LEVEL SHIFT
19
VDD
LATCH
18
RESET
17
S
16
VSS
20
19
18
25
24
23
22
21
6
3
1
5
1
5
0
8
9
DECODER
ANTI BIRDIE
STEREO
AGC
SW
STEREO
DRIVE
DET
FF
FF
FF
VCO
AM
PILOT
S METER
DET
PHASE
DET
TUNING
DRIVE
GND
VCC
5
6
7
8
9
10
11
12
13
14
m
c o
.
– 24 –
2
8
9
9
8
RESET
– +
VREF
7
VSA
6
VSB/SESIN
5
V+
Q
R
S
+
–
+
–
17 16
2
4
9
8
2
9
9
MUTE
15
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