Sony CDP-XB720 / CDP-XB720E Service Manual ▷ View online
– 30 –
6-12. IC PIN FUNCTIONS
• IC101 DIGITAL SIGNAL PROCESSOR (CXD2585Q)
DVDD
XRST
MUTE
DATA
XLAT
CLOK
SENS
SCLK
ATSK
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
CM4
WDCK
DVSS
COUT
MIRR
DFCT
FOK
PWMI
LOCK
MDP
SSTP
FSTO
DVDD1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
DVSS1
TEST
TES1
VC
FE
SE
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
I
I
I
I
O
I
I
O
O
O
O
O
O
O
O
–
I/O
I/O
I/O
I/O
I
I/O
O
I
O
–
O
O
O
O
O
O
–
I
I
I
I
I
Digital power supply
System reset
“L” : reset
Muting input “H” : mute
Serial data input, supplied from CPU
Latch input, supplied from CPU
Serial data transfer clock input, supplied from CPU
SENS signal output to CPU
SENS serial data read-out clock input
Input pin for anti-shock (Connected to ground)
WFCK output (Not used)
Not used
Not used
Not used
Not used
Sub-code sync output
4.2336 MHz output (Not used)
Word clock output (ƒ = 2Fs)
Digital ground
Numbers of track counted signal input/output (Not used)
Mirror signal input/output
Defect signal input/output
Focus OK input/output
Spindle motor external control input (Connected to ground)
GFS is sampled by 460 Hz. H when GFS is H (Not used)
Output to control spindle motor servo
Input signal to detect disc inner most track
2/3 divider output of pin 71
Digital power supply
Sled drive output
Sled drive output
Tracking drive output
Tracking drive output
Focus drive output
Focus drive output
Digital ground
TEST pin connected normally to ground
TEST pin connected normally to ground
Center voltage input pin
Focus error signal input
Sled error signal input
Pin No.
Pin Name
I/O
Function
• Abbreviation
GFS : Guarded Frame Sync
– 31 –
• Abbreviation
EFM : Eight to Fourteen Modulation
PLL : Phase Locked Loop
PLL : Phase Locked Loop
Pin No.
Pin Name
I/O
Function
TE
CE
RFDC
ADIO
AVSS0
IGEN
AVDD0
ASYO
ASYI
RFAC
AVSS1
CLTV
FILO
FILI
PCO
AVDD1
BIAS
VCTL
V16M
VPCO
DVDD2
ASYE
MD2
DOUT
LRCK
PCMD
BCLK
EMPH
XTSL
DVSS2
XTAI
XTAO
SOUT
SOCK
XOLT
SQSO
SQCK
SCSY
SBSO
EXCK
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
I
I
O
–
I
–
O
I
I
–
I
O
I
O
–
I
I
I/O
O
–
I
I
O
O
O
O
O
I
–
I
O
O
O
O
O
I
I
O
I
Tracking error signal input
Center servo analog input
RF signal input
Test pin (Not used)
Analog ground
Stabilized current input for operational amplifiers
Analog power supply
EFM full swing output
Asymmetry comparate voltage input
EFM signal input
Analog ground
Control voltage input for master VCO1
Filter output for master PLL
Filter input for master PLL
Charge-pump output for master PLL
Analog power supply
Asymmetry circuit constant current input
VCO2 control voltage input for wide band EFM PLL (Connected to VDD)
VCO2 oscillator input/output for wide band EFM PLL (Not used)
Charge-pump output for wide band EFM PLL (Not used)
Digital power supply
Asymmetry circuit ON/OFF input
“L” OFF, “H” : ON (Connected to VDD)
Digital-out ON/OFF control input (Connected to VDD)
Digital-out output pin
D/A interface LR clock output (ƒ = Fs)
D/A interface serial data output
D/A interface bit clock output
Playback disc output in emphasis mode (Not used)
X'tal selection input (Connected to ground)
Digital ground
X'tal oscillator circuit input
X'tal oscillator circuit output (Not used)
Serial data output in servo block (Not used)
Serial data read clock output in servo block (Not used)
Serial data latch output in servo block (Not used)
Sub-Q 80-bit and PCM peak level data output (CD text data output)
Clock input for SQSO read-out
Connected to ground
Sub-P through Sub-W serial output (Not used)
Clock input for SBSO read-out (Connected to ground)
– 32 –
• IC501 SYSTEM CONTROL (CXP82832-009Q)
Pin No.
Pin Name
I/O
Function
1
13G
O
FL grid signal output
2
14G
O
FL grid signal output
3
NC
–
Connected to VDD
4
+5V
–
Power supply (+5V)
5
SCOR
I
Sub code sync input
6, 7
GND
–
Ground
8
RMIN
I
Remote control signal input
9
GND
–
Ground
10, 11
X
–
Not used (Open)
12
LD OUT
O
Loading motor control
13
LD IN
O
Loading motor control
14
SENS
I
Sense signal input
15
XLT
O
Serial latch output
16
AMUTE
O
Audio mute output
17
PGML
O
Digital filter latch output
18
SENSOR. IN
–
Connected to VDD
19
BUSOUT
O
CONTROL-A1 transmission output
20
BUSIN
I
CONTROL-A1 receive input
21
SENSOR. SW
–
Not used (Open)
22
CLK
O
Serial clock output
23
LDON
O
Optical pick-up laser diode control output
24
DATA
O
Serial data output
25
SQCK
O
Subcode Q data readout clock output
26
SUBQ
I
Subcode Q data input
27
+5V
–
Power supply (+5V)
28
AVREF
I
Analog reference voltage input
29
KEY 0
I
Key input
30
KEY 1
I
Key input
31
KEY 2
I
Key input
32
FILTER. SW
–
Connected to ground
33
ADJ/AFADJ
I
Test mode terminal
34
LOADSW
O
Load in/out select control output
35
MODEL. SEL1
–
Model select pin (Connected to ground)
36
MODEL. SEL2
–
Model select pin (Connected to VDD)
37
AVSS
–
Analog ground
38
RST
I
Reset signal input
39
EXTAL
I
8 MHz clock input
40
XTAL
O
8 MHz clock output
• Abbreviation
FL : Fluorescent indicator tube
– 33 –
Pin No.
Pin Name
I/O
Function
41
VSS
–
Ground
42
TX
–
Not used
43
TEX
–
Connected to ground
44
VDD (+5V)
–
Power supply (+5V)
45
VFDP (–30V)
–
Pull down voltage (–30V)
46
XSEL
O
Not used
47
REINIT
–
Not used
48
LP CONTROL
O
LP control hold output
49
B-MUTE
O
Line mute control output
50 to 66
OPEN
–
Not used
67 to 87
S21 to S1
O
FL segment signal output
88
1G
O
FL grid signal output
89
VDD (+5V)
–
Power supply (+5V)
90 to 100
2G to 12G
O
FL grid signal output
• Abbreviation
FL : Fluorescent indicator tube
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