Sony CDP-CX55 Service Manual ▷ View online
— 34 —
— 33 —
CDP-CX55
7-3. BLOCK DIAGRAMS
— BD SECTION —
• Rch is same as Lch.
• SIGNAL PATH
: CD
: CD (digital)
• SIGNAL PATH
: CD
: CD (digital)
OPTICAL PICK-UP BLOCK
DETECTOR
K
B+
A
D
C
B
E
F
A
D
C
B
1
4
2
5
5
10
6
2
1
3
4
6
7
20
21
LD DRIVE
Q103
62
63
LDD
LDS
TO
FD
SPD
53
52
51
50
43
49
44
41
FIN1
FIN2
FOCUS/TRACKING SERVO
RF AMP
IC101 (1/2)
E
F
TE–
TE
FE
FE–
SLC
54
DRF
SLI
DEF
CLK
CL
DAT
CE
54
57
56
61
1
9
EFMO
DEFI
4.2M
COIN
CQCK
RWC
51
50
49
47
60
16M
SBSY
PW
SFSY
SBCK
40
39
38
37
34
36
35
TGL
33
JP+
32
JP–
TOFF
TES
HFL
SLOF
CV–
CV+
12
13
14
15
18
16
17
TGL
19
JP+
20
JP–
25
CONT2
10 EFMIN
37
LCHO
TOFF
TES
HFL
35
31
DOUT
MUTEL
45
44
XOUT
27
CONT4
S101
LIMIT
MAIN
SECTION
XIN
V/P
CLV–
CLV+
RFSM
X101
16.9344MHz
LASER
DIODE
TRACKING
COIL DRIVE
22
19
20
FOCUS/TRACKING
COIL DRIVE
IC103 (1/2)
FOCUS
COIL DRIVE
15
15
16
27
17
18
2-AXIS
DEVICE
TRACKING
COIL
FOCUS
COIL
T+
F+
T–
F –
SLED SERVO
IC101 (2/2)
SLED/SPINDLE
MOTOR DRIVE
IC103 (2/2)
30
31
29
10
SLED MOTOR
DRIVE
7
•
8
M
M102
SLED MOTOR
SPINDLE MOTOR
DRIVE
MUTE
3
2
5
•
6
M
M101
SPINDLE
MOTOR
SLD
SL–
SL+
DQSY
SRDT
SRDT
SCLK
DRF
SL–
SL+
TGL
COIN
CQCK
RWC
WRQ
SQOUT
LOUT
XMODE
MUTL
DOUT
RST
09
A
EXCK
WFCK
CD-TEXT
IC104
1
4
SBSO
SCOR
2
3
DQSY
SRDT
13
12
SCLK
XMODM
11
6
MCK
5
SLED MOTOR
DRIVE
Q101, Q102
53
WRQ
55
RWC
CONT3
26
RES
58
B
DIGITAL SIGNAL
PROCESSOR
IC102
MAIN
SECTION
— 36 —
— 35 —
CDP-CX55
— MAIN SECTION —
MIX AMP
IC301
MUTE
Q331
MUTE
SWITCH
Q381
5
1
LINE AMP
IC302
6
1
MUTE
Q301
POWER
ON/OFF MUTE
Q380
DIGITAL OUT
OPTICAL
IC701
TRACKING GAIN
CONTROL SWITCH
Q501
MUTE
Q302
MUTE
SWITCH
Q304
MUTE
DRIVE
Q305
MUTE
Q303
MUTE
SWITCH
Q382
RESET
SWITCH
Q502
LED DRIVE
Q902, Q903
Q905, Q906
Q905, Q906
D901-D904
D945
28
29
59
51
52
60
58
55
54
50
49
48
47
44
61
53
52
47
6
54
55
22
26
27
18 19 20 21
53
42
25
23 24
38 39 40
56
2
3
1
RESET
IC201(1/2)
LED DRIVE
Q904
5
3
2
61-64 • 1-31 • 60
46-33
7-20
25-60
BUFFER
Q901
1
•
3
63
•
65
D905
DISC SENSOR
Q51
Q51
1
3
5
KEY MATRIX
S901-S919
REMOTE
SENSOR
SENSOR
IC802
1
LOADING
MOTOR
DRIVE
TABLE
MOTOR
DRIVE
TABLE
SENSOR
IC51-IC53
T.SENS1
|
T.SENS3
3
2
16
17
8
9
10
11
14
15
16
17
M
M
M61
LOADING
MOTOR
M62
TABLE
MOTOR
62-64
65
13
30
43
46
45
31
32
41
20
66
68-71 • 74-77
27
1-10 • 21 • 23-26
11-13 • 15-19
RESET SWITCH
Q503
RESET
IC203 (1/2)
8
LED DRIVE
Q802, Q803
D841-D843
AU BUS
BUFFER
BUFFER
Q701
RECT
D205
D205
RECT
D201, D202
RECT
D203, D204
+5V REG
IC201(2/2)
7
1
+7V REG
IC202
3
1
+5V REG
IC203(2/2)
3
1
–30V REG
Q201, Q202
DISC SENSOR
D51
LOUT
RST
MUTL
DOUT
XMODE
SCLK
SRDT
DQSY
RWC
WRQ
DRF
COIN
SQOUT
CQCK
SL+
SL–
SL–
BD
SECTION
XMODE
ICSW
LDOUT
LDIN
TBLL
TBLR
ZMUTE
SCLK
SRDT
DQSY
RWC
RWC
WRQ
DRF
COIN
SQOUT
CQCK
SL+
SL–
CQCK
SL+
SL–
TGC
TGC
RESET
FLLT
FLCK
FLDT
LED(PLAY)
LED(PAUSE)
LED(POWER)
LED(MEGA)
HHOUT
D.SENS
DOORSW
JOG1
JOG2
KEY0
KEY1
KEY2
WE
RMIN
CS(FLLT)
CP(FLCK)
DA(FLDT)
VF1
P1
|
P35
2G
|
15G
VF2
VF1
VF2
FL901 FLUORESCENT INDICATOR TUBE
T501
1G
P1
|
P35
2G
|
15G
1G
TP501
S920
PUSH OPEN
DISC
SENSOR
SENSOR
JOG
RE901
DISC/CHARACTER
+5V
–30V
–12.4V
+7V
+5V
AC IN
VF1
VF2
VF2
FL901
T501
POWER
TRANSFORMER
TP302
(ADJ)
X501
10MHz
J701
S-LINK
CONTROL-A1
CD3
CD2
CD1
S701
COMMAND MODE
CD
MOTOR DRIVE
IC601
S52
(DOWN)
S51
(UP)
SYSTEM CONTROL
IC501
DOWNSW
CD1/2/3
BUSIN
BUSOUT
XTAL
EXTAL
ADJ
A0
|
A14
D0
|
D7
UPSW
WE
A0
|
A14
D0
|
D7
RESET
CE
S RAM
IC502
LINE OUT
2ND CD IN
J301
D304
B
BD
SECTION
A
1-12 • 78-80
FL DRIVE
IC901
09
VOLTAGE
SELECTOR
S201
E, PX MODEL
• R ch is same as L ch.
• Signal path
: CD
: CD (digital)
• Signal path
: CD
: CD (digital)
— 55 —
7-14. IC PIN FUNCTIONS
• IC501 SYSTEM CONTROL (CXP84340-051Q)
Pin No.
Pin Name
I/O
Function
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
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
O
O
O
O
I
I
I
–
–
–
–
–
I
I
I
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM address output
SRAM write enable pin
Loading motor out
Loading motor in
Table motor
Table motor
PLAY LED output
PAUSE LED output
POWER LED output
MEGA CONTROL LED output
Fluorescent indicator tube driver IC latch output
JOG input
JOG input
Front cover close sw
Fluorescent indicator tube driver IC clock output
Fluorescent indicator tube driver IC data output
2nd input pin, mute output
Output +5V
Reset input
10Mhz supply pin
10Mhz supply pin
Ground
Not used
Ground
Ground
+5V power supply
Key input 0
Key input 1
Key input 2
A3
A4
A5
A6
A7
A12
A14
A11
A10
A9
A8
A13
WE
LD OUT
LD IN
TBL L
TBL R
LED (PLAY)
LED (PAUSE)
LED (POWER)
LED (MEGA)
FLLT
JOG1
JOG2
DOOR SW
FLCK
FLDT
ZMUTE
ICSW
RESET
EXTAL
XTAL
V
SS
TX
TEX
AVSS
AVREF
KEY0
KEY1
KEY2
— 56 —
Pin No.
Pin Name
I/O
Function
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
ADJ
D.SENS
CD1/2/3
SL–
BUSOUT
BUSIN
SL+
CQCK
SQOUT
COIN
SCLK
SRDT
HHOUT
DRF
WRQ
RMIN
TGL
RWC
XMODE
DQSY
TGC
T.SENS1
T.SENS2
T.SENS3
DOWNSW
UPSW
SELECT
D3
D4
D5
D6
V
DD
NC (V
DD
)
D7
D0
D1
D2
A0
A1
A2
I
I
I
O
O
I
O
O
I
O
O
I
O
I
I
I
I
O
O
I
O
I
I
I
I
I
I
I/O
I/O
I/O
I/O
–
–
I/O
I/O
I/O
I/O
O
O
O
TEST pin (GND=ADJ/2.5V=AFADJ/4V=MECHANICAL ADJ)
DISC sensor input
CD 1/2/3/ sw input
BD sled output
Contlor A1 output pin
Contlor A1 input pin
BD sled output
BD clock output
BD SUBQ input
BD data output
LC89170M clock output
LC89170M data input
PLUS ONE LED output
BD DRF input (FOK input)
BD sub Q sink input
Remote controller input
BD Tracking gain high input
BD Latch output
LC89170M Reset output
LC89170M data sink input
BD Tracking gain control
Tabe sensor input
Tabe sensor input
Tabe sensor input
Loading out sw input
Loading in sw input
Select input
SRAM data input/output
SRAM data input/output
SRAM data input/output
SRAM data input/output
+5V power supply
Not used
SRAM data input/output
SRAM data input/output
SRAM data input/output
SRAM data input/output
SRAM address output
SRAM address output
SRAM address output
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