Read Sony CFD-V27 Service Manual online
— 33 —
6-6. IC PIN FUNCTION DESCRIPTION
IC702 CD DIGITAL SIGNAL PROCESSOR, LCD DRIVE, SYSTEM CONTROL (CXP401-602R)
Pin No.
Pin name
I/O
Description
1
SEIN
I
CD SENS input.
2
CNIN
I
CD SENS input.
3
DATO
O
CD DSP command data output.
4
XLTO
O
Latch output.
5
CLKO
O
Clock output for CD DSP command.
6
DV
SS
–
Digital ground.
7
DV
DD
–
Digital power supply (+5V).
8
MON
–
Not used (Open).
9
MDP
O
Spindle motor drive control.
10
MDS
–
Not used (Open).
11
LOCK
O
Lock signal output.
12
VPCO2
–
Not used (Open).
13
VPCO1
–
Not used (Open).
14
VCKI
–
Not used (Connect to
!∞
pin).
15
V16M
–
Not used (Connect to
!¢
pin).
16
VCTL
–
Not used (“H” level).
17
PCO
O
Decoder PLL phase comparator output.
18
FILI
I
Decoder PLL filter input.
19
FILO
O
Decoder PLL filter output.
20
AV
SS
–
Analog ground.
21
CLTV
I
Decoder PLL VCO control voltage input.
22
AV
DD
–
Analog power supply (+5V).
23
RF
I
CD RF signal input.
24
BIAS
I
Playback EFM asymmetry current constant input.
25
ASYI
I
Playback EFM asymmerty comparater voltage input.
26
ASYO
O
Playback EFM full swing output.
27
TEST1
I
Test terminal (Fixed at “L”).
28
TEST2
I
Test terminal (Fixed at “L”).
29
XRST
I
CD reset input.
30
XRSTO
O
CD reset output. “L” : Reset
31
FOK
I
FOK signal input.
32
LRCK
O
L/R clock signal output. (Connect to
#£ pin)
33
LRCKI
I
L/R clock signal input. (Connect to
#™ pin)
34
PCMD
O
PCM data output. (Connect to
#∞ pin)
35
PCMDI
I
PCM data input. (Connect to
#¢ pin)
36
BCK
O
Bit clock signal output. (Connect to
#¶ pin)
37
BCKI
I
Bit clock signal input. (Connect to
#§ pin)
38
GTOP
–
Not used (Open).
39
XPCK
–
Not used (Open).
40
GFS
–
Not used (Open).
41
RFCK
–
Not used (Open).
42
C2PO
–
Not used (Open).
43
DV
SS
–
Digital ground.
44
DV
DD
–
Digital power supply (+5V).
45
XROF
–
Not used (Open).
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