Read Sony SDP-EP70 / SDP-EP90ES Service Manual online
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IC401, 402, 403 CXD8517Q
IC421 M62361FP
IC409-414 CXA8042AS
COEFFIENT
ROM
ATT/MODE
REGISTER
REGISTER
L-CH RAM B
L-CH RAM A
REGISTER
MPY
REGISTER
20 bit ADD
REGISTER
20 bit ADD
25 bit ACCUMLATOR
OVER FLOW LIMITER
REGISTER
R-CH RAM B
FIR FILTER CONTROL
(RAM/ROM/A
CC
)
OUTPUT I/F (P1-S0)
R-CH RAM A
REGISTER
19 bit
ADD
19 bit
ADD
RES
SAMPLING
RATE
POINTER
GENERATOR
FLAME
COUNTER
INPUT I/F (S1-P0)
1 2 3 4 5
7
9
10 11
12
13
14
15
16
18
20
21
22
23
19
17
6
24
25
26
27
32
33
35
34
36
37
38
39
40
41
42
42
43
44
31 30
29 28
NC
TEST
FIS1
FIS0
FIS0
PASS
GND
XO2
V
DD
XO
XI
GND
8
NC
INIT
MO1
MO0
FI128
V
DD
MI1
MI0
BCKI
LRCKI
DATAI
NC
SLAVE
SWDT
SCK
XLAT
GND
FS2
FS1
DEMP
MUTE
NC
NC
LRCKO
BCKO
DATAO
NC
V
DD
STA
TEST3
TEST2
TEST1
NC
1
2
3
4
4
5
6
7
8
9
10
11
12
13
14
13
14
28
27
26
25
25
24
23
22
21
20
19
18
17
16
15
15
SWITCHING
CIRCUIT
CONSTANT
CURRENT
CIRCUIT
REFERENCE
VOLTAGE
CIRCUIT
CONTROL
CIRCUIT
I01+
IN2–
IN2+
NC
IN1+
IN1–
IN1–
NC
C4
C4
C3
GND2
VEE2
VEE1
C6
C5
CIREF
I02–
NC
I01–
I02+
NC
VCC2
C2
C1
C1
VCC1
VREF
VCNT
GND1
RIREF
COMPARATOR
DECODER
8 bit
LATCH
8 bit
DAC
DAC
11
8 bit
LATCH
8 bit
DAC
DAC
10
9
8 bit
LATCH
8 bit
DAC
DAC
12
8 bit
LATCH
8 bit
DAC
DAC
13
8 bit
LATCH
8 bit
DAC
DAC
14
8 bit
LATCH
8 bit
DAC
DAC
15
16
RESET
VREF
VREF
VREF
VREF
VREF
VREF
8
3
4
12-15
9-11
15 bit
SHIFT
REGISTOR
1-8
LEVEL
SHIFT
1
2
3
4
DT
CK
ST
CS
5
6
7
8
NC
D•G
A•G
V
SS
V
DD
AO1
AO2
AO3
AO4
AO5
AO6
VREF
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