Read Sony AIR-SA15R / AIR-SA20PK Service Manual online
AIR-SA15R
AIR-SA15R
13
13
• IC Block Diagrams
– S-AIR RX-IF Board –
IC008 WM8728SEDS/RV
VOUTL
3
2
1
8
4
7
14
13
BCKIN
DIN
LRCIN
VOUTR
MCLK
5
ZERO
6
DGND
DVDD
10
9
AGND
AV
D
D
VREFP
VREFN
DIGITAL
FILTERS
SIGMA-DELTA
MODULATOR
D/A
CONVERTER
LOW-PASS
FILTER
LOW-PASS
FILTER
CONTROL INTERFACE
12
VMID
11
20
LA
TI2S
D/A
CONVERTER
SIGMA-DELTA
MODULATOR
SERIAL
INTERFACE
MUTING/
ATTENUATOR
MUTING/
ATTENUATOR
19
SCK
18
SDIDEM
17
MUTEB
16
MODE
15
CSBIWL
– LCD Board –
IC801 NJU6433BF
1 2
4 5
3
6 7 8 9
SEG10
10
SEG16
16
SEG15
15
COMMON
DRIVER
SEG17
17
INPUT
SELECT
CIRCUIT
INPUT
SELECT
SHIFT
REGISTER1
50-BIT
DECODER
LATCH CIRCUIT/SEGMENT DRIVER
SCL 57
CE 56
DATA 58
MODE 59
COM1 64
COM2 63
COM3 62
COM4 61
SEG50 50
SEG49 49
INH 60
VLCD 55
VSS 54
VDD 53
OSC1
SEG48
51
OSC2 52
INPUT
SELECT
SHIFT
REGISTER2
50-BIT
INPUT
SELECT
SHIFT
REGISTER3
50-BIT
INPUT
SELECT
SHIFT
REGISTER4
50-BIT
SHIFT
REGISTER
CONTROL
CIRCUIT
DIVIDING
CIRCUIT
OSCILLATION
CIRCUIT
48
SEG47
47
SEG46
46
SEG45
45
SEG44
44
SEG43
43
SEG42
42
SEG41
41
SEG40
40
SEG39
39
SEG38
38
SEG37
37
SEG36
36
SEG35
35
SEG34
34
SEG33
33
SEG14
14
SEG13
13
SEG12
12
SEG1
1
11
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG18
18
SEG19
19
SEG20
20
SEG21
21
SEG22
22
SEG23
23
SEG24
24
SEG25
25
SEG26
26
SEG27
27
SEG28
28
SEG29
29
SEG30
30
SEG31
31
SEG32
32
– MAIN Board –
IC602 PST3629NR
VDD 2
OUT 1
GND 3
+
–
VREF
CD
5
NC
4
8.5
μs
2.6 Vp-p
XB
IC801 UT (OSC2)
1 V/DIV, 2
μs/DIV
IC003 (1Y)
1 V/DIV, 20 ns/DIV
81.4 ns
3.6 Vp-p
IC008 (MCLK)
1 V/DIV, 20 ns/DIV
81.4 ns
4.5 Vp-p
RB
IC601 (XT2)
1 V/DIV, 10
μs/DIV
30.5
μs
3.2 Vp-p
RT
IC601 (X2)
1 V/DIV, 20 ns/DIV
62.5 ns
3.2 Vp-p
• Waveforms
– S-AIR RX-IF Board –
– MAIN Board –
– LCD Board –
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