DOWNLOAD Sony DAV-EA20 / HCD-EA20 Service Manual ↓ Size: 9.72 MB | Pages: 101 in PDF or view online for FREE

Model
DAV-EA20 HCD-EA20
Pages
101
Size
9.72 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-ea20-hcd-ea20.pdf
Date
PREV: Sony DAV-EA20 Service Manual

Sony DAV-EA20 / HCD-EA20 Service Manual ▷ View online

61
HCD-EA20
Serial
Input
I/F
Function
Control
I/F
8x
Oversampling
Digital Filler
with
Function
Controller
System Clock
Manager
Zero Detect
Enhanced
Multi-level
Delta-Sigma
Modulator
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Output Amp and 
Low-pass Filter
Power Supply
ZERO1/GPO1
ZERO2/GPO2
ZERO3/GPO3
ZERO4/GPO4
ZERO5/GPO5
ZERO6/GPO6
NC
NC
VOUT6
VOUT5
VOUT4
VOUT3
VCC3
AGND3
VCC4
AGND4
VOUT8
AGND6
VCC5
AGND5
VOUT7
VCOM
VOUT1
VOUT2
ML
MC
MDI
MDO
ZERO8
D
ATA
4
ZERO7
NC
VCC1
AGND1
VCC2
AGND2
RST
SCKI
SCKO
BCK
LRCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
1
2
3
4
5
6
7
8
9
10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
IC302  PCM1609KPTR
SINGLE-END
DEFERENTIAL
CONVERTER
REFERENCE
SINGLE-END
DEFERENTIAL
CONVERTER
DIGITAL 
∑
MODULATOR
DIGITAL 
∑
MODULATOR
1/64
DECIMATION
FILTER
&
LOW-CUT
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
LIN
V REF 1
REFCOM
V REF 2
RIN
RSTB
FMT0
BYPASS
FMT1
MODE1
MODE0
FSYNC
1
2
3
4
5
6
8
7
9
11
10
12
AGND
VCC
C PR
C NR
C PR
C NR
DGND
SYSCLK
DOUT
BCK
LRCK
VDD
24
23
22
21
20
19
17
16
15 14 13
18
IC352  PCM1800E/2K
62
HCD-EA20
IC706   MSM51V18165F-60TSKR1
IC509   CXD3068Q
DOUT
LRCK
PCMD
BCK
DVDD2
ASYE
MD2
EMPH
XTSL
DVSS2
XTAI
XTAO
SQSO
SQCK
SCSY
SBSO
EXCK
SOUT
SOCK
XOLT
SE
TE
VC
TES1
TEST1
DVSS1
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
DVDD1
FSTO
SSTP
MDP
LOCK
PWMI
FOK
DFCT
DIGITAL
CLV
PROCESSOR
OSC
DIGITAL
OUT
EFM
DEMODULATOR
32K
RAM
ERROR
CORRECTOR
D/A DIGITAL
INTERFACE
MIRR, DFCT,
FOK
DETECTOR
CPU
INTERFACE
SUBCODE
PROCESSOR
SERVO
AUTO
SEQUENCER
SERVO INTERFACE
DVDD0
XRST
MUTE
D
ATA
XLA
T
CLOK
SENS
SCLK
A
TSK
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
C4M
WDCK
DVSS0
COUT
MIRR
A
VDD0
IGEN
A
VSS0
ADIO
RFDC
CE
TE
A
VSS1
RF
AC
ASYI
ASYO
BIAS
A
VDD1
PCO
FILI
FILO
CL
TV
V16M
VCTL
VPCO
59 58
57 56 55 54 53 52
51 50 49 48
47 46 45 44 43 42 41
1
2
3
4
5
6
7
8 9 10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
OPERA
TIONAL
AMPLIFIER &
ANALOG SWITCH
A/D
CONVER
TER
FOCUS
PWM
GENERATOR
TRACKING
PWM
GENERATOR
SLED
PWM
GENERATOR
FOCUS
SERVO
DSP
TRACKING
SERVO
DSP
SLED
SERVO
DSP
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
60
NC
A9
A8
A7
A6
A5
A4
VSS
NC
NC
A0
A1
A2
A3
VDD
VDD
DQ1
DQ2
DQ3
DQ4
VCC
DQ5
DQ6
DQ7
DQ8
WE
RAS
31
32
29
30
26
27
28
20
19
22
21
24
25
23
2
VDD
1
4
3
6
5
8
7
10
9
VSS
DQ16
DQ15
DQ14
DQ13
VSS
DQ12
DQ11
DQ10
DQ9
49
50
47
48
45
46
43
44
41
42
35
I/O
SELECTOR
OUTPUT
BUFFER
INPUT
BUFFER
OUTPUT
BUFFER
INPUT
BUFFER
SENSE
AMPLIFIER
COLUMN
DECODERS
MEMORY
CELLS
WORD
DRIVERS
ROW
DECODERS
ON CHIP
VBB GENERATOR
ON CHIP
IVCC GENERATOR
COLUMN
ADDRESS
BUFFERS
LCAS
34
UCAS
33
OE
I/O
CONTROLLER
I/O
CONTROLLER
17 18
11 – 16
NC
40 – 36
ROW
ADDRESS
BUFFERS
INTERNAL
ADDRESS
COUNTER
REFRESH
CONTROL
CLOCK
TIMING
GENERATOR
VCC
VDD
VDD
VDD
63
HCD-EA20
IC903   BR24L16F-WE2
IC101,111   NJM4580E(TE2)
– I/O BOARD –
8
VCC
7
TEST
6
SCL
5
SDA
1
A0
2
A1
3
A2
4
GND
ADDRESS
DECODER
SLAVE WORD
ADDRESS REGISTER
DATA
REGISTER
16 K bit EEPROM ARRAY
CONTROL CIRCUIT
POWER SUPPLY
VOLTAGE DETECTION
HIGHT VOLTAGE
GENERATOR
11 bit
8 bit
11 bit
STOP
START
ACK
1
2
3
4
5
6
7
8
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
A
B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN1B
CTL1
OUT1
GND2
OUT2
OUT3
CTL3
IN3A
IN1A
GND1
IN2B
VDD
CTL2
IN2A
GND3
IN3B
Bias Type
Clamp Type
Clamp Type
L
H
L
H
L
H
IC106  NJM2285V-TE2
64
HCD-EA20
IC121  MC14052 BDR2
1
2
3
4
6
5
7
8
IN 1
SW 1
SW 2
VDD
VIN 3
OUT
GND
IN 2
BIAS
BUFFER
IC151  NJM2235V(TE2)
4
1
OUT2
2
OUT1
3
VCC
IN
5 GND
6 SW
BIAS
CLAMP
DRIVER
4dB
4dB
VCC2
75
Ω
DRIVER
LPF
LPF
LPF
75
Ω
DRIVER
2dB
4dB
2dB
75
Ω
DRIVER
2dB
75
Ω
DRIVER
2dB
4dB
75
Ω
DRIVER
2dB
4dB
75
Ω
DRIVER
4dB
2dB
CIN
2
VIN
4
MUTE1
3
YC MIX
5
YIN
6
BIAS
7
GND1
8
NC
9
GND1 10
NC 11
CYIN 12
CLP 13
CbIN 14
CrIN 16
GND2 17
MUTE2 15
VCC1
1
34
CrSAG
18
CrOUT
19
CbSAG
21
GND2
20
CbOUT
22
CYSAG
24
GND2
23
GND2
26
CYOUT
25
YSAG
27
YOUT
28
VSAG
30
GND2
29
GND2
32
VOUT
31
COUT
33
+
BIAS
BIAS
BIAS
BIAS
BIAS
CLAMP
CLAMP
CLAMP
LPF
LPF
LPF
IC251  MM1510XNRE
IC252  MM1568AJBE
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