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Model
CDP-CX255 CDP-CX70ES CDP-CX88ES
Pages
50
Size
1.37 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cdp-cx255-cdp-cx70es-cdp-cx88es.pdf
Date
PREV: Sony SEN-561A Service Manual

Sony CDP-CX255 / CDP-CX70ES / CDP-CX88ES Service Manual ▷ View online

— 31 —
— 32 —
7-2. IC PIN FUNCTION
•
IC301 SYSTEM CONTR
OL (CXD84332-052Q)
Pin Name
A3
A4
A5
A6
A7
A12
A14
A11
A10
A9
A8
A13
WE
CE
PLA
Y
P
A
USE
LEDL
T
JOG1
JOG2
MODE
SCLK
LDON
DOORSW
TBL.L
TBL.R
LDIN
LDOUT
POWER
BUSOUT
RESET
EXT
AL
XT
AL
V
SS
TX
TEX
AV
SS
A
VREF
I.SENS
CD 1/2/3
D.SENS
Pin No.
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
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
O
O
O
O
O
O
O
O
O
O
I
O
I
–
–
–
–
–
O
I
I
Function
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM address
SRAM writing
SRAM enable
PLA
Y LED control
P
A
USE LED control
Latch for LED driver IC
JOG input
JOG input
Enable for CD-TEXT
Clock for CD-TEXT
Laser diode control
Front door switch
T
a
b
le motor PWM output f
or left turn
T
a
b
le motor PWM output f
or right tur
n
Loading motor PWM output for inside direction
Loading motor PWM output for outside direction
IC power switch
CONTR
OL A1 
out
Reset input     L: Reset
X'tal Oscillation (10MHz)
X'tal Oscillation (10MHz)
Connect to ground
Open
Connect to ground
Connect to ground
Connect to +5V
AUX mute driver
Command mode switch
Disc sensor input      Less than 3V
: Existing disc
Pin Name
AF
ADJ/ADJ
KEY2
KEY1
KEY0
PRGL
T
BUSIN
AMUTE
CLK
XL
T
DA
T
A
SQCK
SUBQ
FL
T
SENSE
255
RMIN
SRDT
FL.CLK
FL.D
A
T
A
DQSY
SCOR
T
.SENS1
T
.SENS2
T
.SENS3
DOWN SW
UPSW
UMUTE
D3
D4
D5
D6
V
DD
NC (V
DD
)
D7
D0
D1
D2
A0
A1
A2
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
I
I
I
I
O
I
O
O
O
O
O
I
O
I
I
I
I
O
O
I
I
I
I
I
I
I
O
I/O
I/O
I/O
I/O
–
–
I/O
I/O
I/O
I/O
O
O
O
Function
T
est mode pin
Key input
Key input
Key input
Latch for digital filter IC
CONTR
OL-A1 input     L:
 Acti
v
e
Audio mute driver
Clock for servo IC and digital filter IC
Latch for command
Data for command
Clock for sub code Q
Sub code Q data input
Latch for fluorescent indicator driver IC
Servo sensor signal
Model selection operation
Remote control signal
CD-TEXT data
Clock for fluorescent indicator driver IC
Data for fluorescent indicator driver IC
Synchronous signal for CD-TEXT
Sub code Q synchronous signal     Start at rising edge
T
a
b
le position sensor 1 input
T
a
b
le position sensor 2 input
T
a
b
le position sensor 3 input
Loading out switch input     L: Out
Loading in switch input     L: In
Line mute driver
SRAM data
SRAM data
SRAM data
SRAM data
Connect to +5V
Connect to +5V
SRAM data
SRAM data
SRAM data
SRAM data
SRAM address
SRAM address
SRAM address
2
1
3
5
4
6
8
9
16
19
RF
SUMMING
AMP
RF EQ
AMP
15
13
11
12
FOCUS
ERROR
AMP
TRACKING
ERROR
AMP
10
39
36
38
26
27
28
29
4
99
6
ASYMMETRY
CORRECTION
EFM
DEMODULATOR
D/A
DATA
PROCESSOR
ERROR
CORRECTION
SYNC
PROTECTOR
TIMING
GENERATOR 1
TIMING
GENERATOR 2
CLV SERVO
PROCESSOR
NOISE
SHAPER
MIRR
DFCT
FOK
DETECTOR
1B TIMES
OVERSAMPLING
FILTER
SERIAL/PARALLEL
PROCESSOR
77
78
46
45
47
70
74
86
87
88
80
70
62
71
3
8
10
96
2
100
LPF
LPF
LPF
4
5
2
1
19
20
10
9
23
24
15
17
16
12
13
26
27
M
M
E
PD1
PD2
F
13
12
11
6
5
4
3
2
1
73
75
76
83
81
XTAI
DATA
LRCK
BCLK
CD DATA
CD CLK
MUTE
MAIN
SECTION
MCK
XRST
SCLK
MODE
SCLK
SRDT
DQSY
LDON
09
OPTICAL PICK-UP
BLOCK (KSS-213B)
LASER
DIODE
PB
LD
LD
POWER
DETECTOR
TRACKING
COIL
FOCUS
COIL
M102
SLED
MOTOR
M101
SLED
MOTOR
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
T+
T–
F–
F+
VC
D+5V
S101
LIMIT
MUTE
VC
4
LD
DRIVE
Q101
APC LD
AMP
IC103
RF AMP
VC
BUFFER
VC
ASYO
RFAC
ASYI
RFDC
TE
SE
FE
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
MDP
SSTP
A/D
CONVERTER
MUX
DIGITAL
PLL
CLOCK
GENERATOR
PRIORITY
ENCODER
DIGITAL
OUT
PEAK 
DETECTOR
SUBCODE
P-W
PROCESSOR
SUBCODE
Q
PROCESSOR
ADDRESS
GENERATOR
32K
RAM
REGISTER
CPU
INTERFACE
SERVO
INTERFACE
SERVO
AUTO
SEQUENCER
FOK
DFCT
MIRR
SERVO DSP
FOCUS
SERVO
TRACKING
SERVO
SLED
SERVO
PWM
GENERATOR
TRACKING
PWM
GENERATOR
FOCUS
PWM
GENERATOR
SLED
PWM
GENERATOR
IC104
CD TEXT
EXCK
SBSO
SCOR
WFCK
MCK
MODE
SCLK
SRDT
DQSY
WFCK
SBSO
EXCK
SCLK
XRST
SENS
CLOCK
XLAT
DATA
SCOR
MUTE
BCLK
LRCK
DATA
SQCK
SUBQ
DOUT
MD2
D+5V
XTAI
DIGITAL
OUT
OPTICAL
IC905
AMUTE
A
DATA BUS
IC101
DIGITAL SIGNAL PROCESSOR
• Rch is same as Lch.
• SIGNAL PATH
: CD
: CD (digital)
— 33 —
— 34 —
CDP-CX70ES/CX255
7-3. BLOCK DIAGRAMS
— BD SECTION —
— 35 —
— 36 —
45
48
50
31
32
54
23
61
47
49
51
52
22
64
62
63
60
57
21
20
25
6
24
27
26
7
3
4
66
65
16
15
38
30 67
28
14
13
20
27
6
2
9
10
1
8
4
19
39
18
40
41
DISC
SENSOR
Q801, D801
LED DRIVE
Q601
IC410(2/2)
INVERTER
JOG
RE601
DISC/
CHARACTER
49
48
47
9
10
63
61
2
4
23
35
22
25
26
36
21
23
18
16
40
39
38
34
35
36
37
33
53
IC302
CURRENT PULSE
D/A CONVERTER
IC303
FULL FEED FORWARD
DIGITAL FILTER,
PULSE D/A CONVERTER
MUTE
Q504
MUTE
SWITCH
Q505
MUTE
Q503
MUTE
SWITCH
Q370
AUX MUTE
Q502
AUX MUTE
SWITCH
Q501
8
1
3
44
42
KEY MATRIX
S601–S609
S701-S715
VOLTAGE
MATRIX
BUFFER
Q903
68
71
•
74
77
11
13
•
15
19
10
1
•
26
23
•
21
78
80
•
1
12
1
•
3
63
•
65
59 - 45
41 - 9
11 - 1 • 64 - 61
59 - 33 • 31 - 23
60
12
15
46
29
56
17
53
58
59
16
14
13
32
BUFFER
Q701
1
4
8
7
6
24
20 - 17
13 - 16
+10V
RECT
D901, 902
D903, 904
–7V
REG
3
1
–11.3V
RECT
–B
RECT
–30V REG
Q901
9
8
2
1
LOADING
MOTOR
DRIVE
TABLE
MOTOR
DRIVE
M
M
S-LINK
CONTROL A1
R-CH
R-CH
R-CH
R-CH
CX255
CX255
XTAI
DATA
LRCK
BCLK
CD DATA
CD CLK
MUTE
MCK
XRST
SCLK
MODE
SCLK
SRDT
DQSY
LDON
09
BD
SECTION
A
INVO 1
XOUT
X302
22MHz
XIN
L1(+)
L1(–)
L2(+)
L2(–)
R1(+)
R1(–)
R2(+)
R2(–)
INV I
12BFSO
DATA 1
LRCK 1
BCK 1
ATT
SHIFT
LATCH
INIT
SYSM
R-CH IS OMITTED.
CX70ES
2
3
1
2
3
1
7
6
5
7
6
5
6
5
IC501(1/2)
ADDER
IC501(2/2)
LPF
IC503(2/2)
MIX AMP
IC503(1/2)
MIX AMP
IC902
RESET
+5V REGULATOR
IC901
RESET
+5V REGULATOR
J904
AUX IN   L
LINE OUT   L
IC306
LATCH
SHIFT
ATT
XLAT
PRGLT
CLK
DATA
SENSE
SCOR
AMUTE
XLT
SQCK
SUBQ
LDIN
LDOUT
TBL.L
TBL.R
MODE
SCLK
SRDT
DQSY
T.SENS 2
T.SENS 1
T.SENS 3
LDON
EXTAL
XTAL
DOORSW
UPSW
DOWNSW
D.SENS
AFADJ/ADJ
AFADJ
ADJ
+5V
X401
4MHz
S502
OPEN
S801
LOADING
DET
U+5V
RV301
DISC SENSOR
CD3
CD2
CD1
1      2      3
CD
S903  COMMAND MODE
IC301
SYSTEM CONTROLLER
IC601
REMOTE
CONTROL RECEIVER
PLAY
PAUSE
JOG 1
JOG 2
CD1/2/3
KEY 2
KEY 0
D602
D601
–7V
–11.3V
VO
VO
RST
RST
VIN
VIN
EN
A+5V
A+7V
D802-D804
INSIDE
ILLUMINATION
I.SENS
RESET
UMUTE
POWER
CE
WE
D00
D07
A00
A14
FL DATA
FL CLK
FLT
LEDLT
RM IN
BUS OUT
BUS IN
RM
DATA
DATA
CLK
RST
LT
GRP1-4
GRP5-8
STANDBY
CLK
D701-704
GROUP1-4
D705-708
GROUP5-8
D709
STANDBY
AU BUS
BUFFER
Q330
J901, 902
VFL
–28.2V
SEG00     SEG35
DIG01     DIG15
DIG00
IC701
FL DRIVER
SCK
CLK
DATA
CLK
DATA
SDATA
CS
RESET
VF1
VF1
2G-16G
P1-P36
1G
VF2
VF2
FL701 FOUORESCENT INDICATOR TUBE
Q307
IC304 S-RAM
OE
WE
D00
D07
A00
A14
D908
M+5V
+10V
VF2
VF1
FL701
D906
VFL(–28.2V)
T901
POWER
TRANSFORMER
CNP901
AC IN
IC803
IC802
IC801
DISC(A) SENSOR
DISC(B) SENSOR
ADDRESS SENSOR
• Rch is same as Lch.
• SIGNAL PATH
          : CD
IC305
MOTOR DRIVE
M802
LOADING
MOTOR
M801
LOADING
MOTOR
IN1+L
IOL+
IOL–
IN1–L
IN2+L
IN2–L
+5.2V
+5.2V
U+5V
D905
7
IC502
LPF
CDP-CX70ES/CX255
— MAIN SECTION —
— 57 —
— 58 —
7-14.
  IC BLOCK DIA
GRAMS
• BD Section
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
92
91
90
89
88
87
86
85
84
83
93
94
95
96
97
98
99
100
SLED PWM
GENERATOR
TRACKING PWM
GENERATOR
FOCUS PWM
GENERATOR
PWM GENERATOR
SERVO DSP
FOCUS
SERVO
TRACKING
SERVO
SLED
SERVO
CLV
PROCESSOR
CPU
INTERFACE
NOISE
SHAPER
18-TIMES
OVER SAMPLING
FILTER
CPU
INTERFACE
CPU
INTERFACE
ADDRESS
GENERATOR
CPU
INTERFACE
PRIORITY
ENCODER
CPU
INTERFACE
ERROR
CORRECTOR
CPU
INTERFACE
TIMING
GENERATOR 2
MIRR
DFCT
FOK DETECTOR
32K RAM
RESISTER
D/A
DIGITAL
PROCESSOR
TIMING
GENERATOR 1
SYNC
PROTECTOR
DIGITAL
OUT
SUBCODE
P-W
PROCESSOR
SUBCODE
Q
PROCESSOR
DIGITAL
PLL
VARI-PITCH
DOUBLE SPEED
CPU
INTERFACE
EFM
DEMODULATOR
SERIAL
PARALLEL
PROCESSOR
CPU
INTERFACE
ASYMMETRY
CORRECTION
1
2
3
4
5
6
7
8
9
10
11
20
19
18
17
16
15
14
13
12
21
22
23
24
25
46 — 50
61
|
51
PEAK
DETECTOR
CLOCK
GENERATOR
MUX
A/D
CONVERTER
SWITCH
&
BUFFER
SERVO
AUTO
SEQUENCER
SERVO
MICRO PROGRAM
INTERFACE
RFC
ADIO
AVSS
IGEN
AVDD
VCKI
VPCO
PDO
TES3
TES2
DVSS
TEST
VCO1
VCO0
SRON
SRDR
SFON
TFDR
TRON
TRDR
TFON
FFDR
FRON
FRDR
FFON
RFDC
TE
SE
FE
VC
FILO
FILI
PCO
CLTV
AVSS
RFAC
BIAS
ASYI
ASYO
AVDD
ADD
ASYE
PSSL
WDCK
LRCK
XTAI
XTAO
XTSL
DVSS
FSTI
FSTO
D OUT
MD2
C16M
C4M
SCOR
WFCK
EMPH
SBSO
EXCK
SQSO
SQCK
MUTE
SENS
XRST
DIRC
SCLK
DFSW
ATSK
DATA
XLAT
CLOK
COUT
ADD
MIRR
DFCT
FOK
FSW
MON
MDP
MDS
LOCK
SSTP
SFDR
4
3
DA01
|
DA11
DA16
|
DA12
IC101  CXD2545Q
BUFF
BUFF
BUFF
BUFF
R
R
F
F
1
CH1 OUT F
2
CH1 OUT R
3
CAPA IN 1
4
CH1 R IN
5
CH1 F IN
6
VREF IN
7
VREF OUT
8
GND
9
CH2 F IN
10
CH2 R IN
11
CAPA IN 2
12
CH2 OUT R
13
CH2 OUT F
14
GND
28
GND
27
CH4 OUT F
26
CH4 OUT R
25
VB IN
24
VS IN
23
VB IN
22
VCC
21
VCC
20
CH3 F IN
19
CH3 R IN
18
CAPA IN 3
17
CH3 OUT R
16
CH3 OUT F
15
MUTE
LEVEL
SHIFT
INTERFACE
BUFF
BUFF
BUFF
BUFF
R
F
R
F
BUFF
INTERFACE
INTERFACE
FF
RR
MUTE
IC102  B
A6392FP
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
LD
VCC
VCC
PD
LD ON
A
LC/PD
B
RFE
C
RFO
D
FE
VEE
FE BIAS
F
TE
E
VC
VC
VC BUFFER
TRACKING ERROR AMP
FOCUS ERROR AMP
RF EQ AMP
APC LD AMP
RF SUMMING AMP
EI
EO
VEE
VCC
VCC
VC
VC
VC
VC
VC
VC
VC
VEE
VEE
VEE
VREF
IC103  CXA1821M-T6
IC104  LC89170M-TLM
TIMING
&
SYNCHRONIZATION
SIGNAL
PROTECTION
32 WORD X 8 BIT
DUAL PORT RAM
CRC
CHECKER
CPU INTERFACE
EXCK
SBSO
SCOR
WFCK
MCK
XMODE
GND
V
DD
V
DD
DQSY
SRDT
SCLK
SW2
SW1
TEST
1
2
3
4
5
6
7
14
13
12
11
10
9
8
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