DOWNLOAD Sony CDX-705 / EXCD-3 Service Manual ↓ Size: 7.58 MB | Pages: 58 in PDF or view online for FREE

Model
CDX-705 EXCD-3
Pages
58
Size
7.58 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-705-excd-3.pdf
Date
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Sony CDX-705 / EXCD-3 Service Manual ▷ View online

– 31 –
• IC Block Diagrams
IC101
CXD2530Q
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
43
42
41
40
39
38
37
36
35
34
33
32
31
50
49
48
47
46
45
44
88
89
90
91
92
93
94
95
96
97
98
99
100
81
82
83
84
85
86
87
71 70 69 68
67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
80 79 78 77 76 75 74 73 72
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
D / A
INTERFACE
DIGITAL CLV
SUB CODE
PROCESSOR
TIMING
LOGIC
CPU
INTERFACE
SERVO
AUTO
SEQUENCER
ERROR
CORRECTOR
16K RAM
DIGITAL OUT
OSC
EFM
DEMODULATOR
TES6
VDD
VSS
EXCK
SBSO
SCOR
WFCK
TES5
EMPH
DOUT
C4M
FSTT
XTSL
MNT0
MNT1
MNT3
XROF
C2PO
RFCK
GFS
XPCK
XUGF
GTOP
VDD
VSS
TES4
BCK
TES3
PCMD
TES9
LRCK
WDCK
ASYE
ASYO
ASYI
BIAS
RF
AVDD
CLTV
AVSS
FILI
FILO
PCO
VCTL
V16M
VCKI
VPCO1
VPCO2
TES1
TES0
LOCK
PWMI
MDP
MDS
VSS
MON
FOK
VDD
SPOD
XLON
SPOB
SPOC
CLKO
SPOA
DATO
XLTO
SEIN
CNIN
XLAT
CLOK
SENS
DATA
SQCK
SQSO
TES2
CKOUT
LMUT
RMUT
VDD
VSS
NC
XRST
VSS
NC
NC
VDD
NC
TES8
XVSS
VSS
XTAI
XTAO
VSS
XVDD
TES7
NC
VDD
NC
NC
VSS
IC102
SM5852ES-E2
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
DIGITAL
SIGNAL
PROCESSOR
OUTPUT
INTERFACE
SYSTEM
CLOCK
INPUT
INTERFACE
SEQUENTIAL
CONTROL
MUTE
CONTROL
MODE
CONTROL
LRCI
BCKI
DI
CLK
VSS
RSTN
TESTN
MUTEN
DB/DS
MOD2
MOD1
OPT
VDD
LRCO
BCKO
DOUT
IC204
BA8272F-E2
1
2
3
4
5
6
7
8
9
10
14
13
12
11
VCC
BUS ON
LINK OFF
CLK OUT
DATA OUT
DATA IN
BUS RESET
BUS DATA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH
– 32 –
IC301
BA6287F
1
2
3
4
OUT1
VM
VCC
FIN
8
7
6
5
GND
OUT2
VREF
RIN
CONTROL LOGIC
TSD
POWER
SAVE
DRIVER
DRIVER
DIGITAL FILTER CIRCUIT
ATTENUATOR OPERATIONAL CIRCUIT
DEEMPHASIS FILTER CIRCUIT
D-
∆
 MODULATION CIRCUIT
INTERFACE
CIRCUIT
TEST
CIRCUIT
OUTPUT
CIRCUIT
ANALOG
FILTER
TIMING
GENERATOR
OSC
MICROCOMPUTER
INTERFACE
CIRCUIT
OUTPUT
CIRCUIT
ANALOG
FILTER
1
2
3 4
5
6
7
8
9
10
20
19
18
17
16
15
14 13
12
11
21
22
23
24
LRCK
BCK
DATA
HS
(SM)
ATT
(EMP)
SH
(BS)
LA
VDX
XO
XI
GNDX
MCK
VDD
T1
P/S
VDA
RO
GNDA
VR
GNDA
LO
GNDD
ZD
VDA
IC401
TC9404FN-EL
IC303
NM24C16EM8X
SLAVE ADDRESS
REGISTER &
COMPARATOR
4
6
7
8
5
1
2
3
CONTROL
LOGIC
WORD
ADDRESS
COUNTER
X
DECODER
EEPROM
128 x 16 x 8
H.V. GENERATOR
TIMING & CONTROL
START CYCLE
START/
STOP
LOGIC
A0
A1
A2
VSS
D OUT
ACK
D IN
R/W
Y
DECODER
DATA
REGISTER
D OUT
SDA
CK
4
16
LOAD
INC
SCL
NC
VCC
16
4
8
8
DEVICE
ADDRESS
BITS
– 33 –
4-6.
IC  PIN  FUNCTION  DESCRIPTION
MAIN  BOARD  IC302
CXP84124-066Q  (SYSTEM  CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
LIM.SW
I
Input of limit switch
2
BUSON
I
Input of Bus on control signal from SONY bus interface (IC204)
“H”: Bus on
3
EJECT
I
Input of EJECT key (SW303)
“H”: Eject on
4
LOAD 1
I
Input of LOAD OUT switch
5
LOAD 2
I
Input of LOAD IN switch
6
A.MUTE
O
Output of audio output mute on/off control signal
“H”: Mute on
7
EMPH
O
Output of emphasis mode for disc playing
“L”: on
8
CH.R
O
Output of control signal to
9
CH.F
O
the chucking motor drive (IC52)
10
—
—
Not used
11
ELV.R
O
Output of control signal to elevator motor drive (IC301)
12
ELV.ON
O
Output of mechanical deck power supply control signal
“H”: on
13
CD RST
O
Servo system resetting
14
CD ON
O
Output of servo power supply control signal
“H”: on
15
GBON
—
Not used
16
EEON
—
Not used
17-23
—
—
Not used
24
TEST1
I
Automatic adjustment selection
“L”: Automatic adjustment
“H”: Manual adjustment (Solder across
the BP302 terminal)
25-29
—
—
Not used
30
RESET
I
Input of system reset signal
“L”: Reset
31
EXTAL
I
Input of system clock (8 MHz)
32
XTAL
O
Output of system clock (8 MHz)
33
VSS
—
Ground pin
34
TX
—
Not used
35
TEX
I
Connected to ground
36
AVSS
—
Ground pin of A/D converter
37
AVREF
I
Input of A/D converter reference voltage
38
ATRIBT
I
Selection of custom file, D-BASS, etc.
39
MCK
I
Input of signal for fine adjustment of elevator position
40
EHS
I
Input of elevator position (RV302)
41
HTMP
—
Not used
42
—
—
Not used
43
MODE1
O
Output of D-BASS control signal
44
MODE2
O
Output of D-BASS control signal
45
MODE3
O
Output of D-BASS control signal
Not used
46, 47
—
—
Not used
48
SCK
O
Output of serial clock signal from SONY bus interface (IC204)
49
SI
I
Input of serial data signal from SONY bus interface (IC204)
50
SO
O
Output of serial data signal to SONY bus interface (IC204)
FWD
REV
Brake
CH.R
L
H
H
CH.F
H
L
H
Forward : Load chucking
Reverse : Save
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