SCD-XA333ES - Sony Audio Service Manual (repair manual). Page 61

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61
SCD-XA333ES
5-30.
IC  PIN  FUNCTION  DESCRIPTION
• 
Pin No.
Pin Name
I/O
Description
1
DVDD0
Power supply terminal (+3.3V) (digital system)
2
XRST
I
Reset signal input from the I/O expander (IC902)    “L”: reset
3
MUTE
I
Muting control signal input from the CPU (IC901)    “H”: muting
4
DATA
I
Serial data input from the CPU (IC901)
5
XLAT
I
Latch signal input from the CPU (IC901)
6
CLOK
I
Clock signal input from the CPU (IC901)
7
SENS
O
Internal status (SENSE) signal output to the CPU (IC901)
8
SCLK
I
Serial data transfer clock input from the CPU (IC901)
9
ATSK
I
Input pin for anti-shock (fixed at “L”)
10
WFCK
O
Write frame clock signal output to the SACD decoder (IC701)
11
XUGF
O
XUGF signal output terminal    Not used (open)
12
XPCK
O
XPCK signal output terminal    Not used (open)
13
GFS
O
Guard frame sync signal output to the CPU (IC901)
14
C2PO
O
C2 pointer signal output to the SACD decoder (IC701)
15
SCOR
O
Subcode sync OR signal output to the SACD decoder (IC701) and the CPU (IC901)
16
C4M
O
4.2336 MHz clock signal output terminal    Not used (open) 
17
WDCK
O
Guard subcode sync OR signal output to the SACD decoder (IC701)
18
DVSS0
Ground terminal (digital system)
19
COUT
O
Numbers of track counted signal output to the CPU (IC901)
20
MIRR
O
Mirror signal output to the CPU (IC901)
21
DFCT
O
Defect signal output terminal
22
FOK
O
Focus OK signal output to the CPU (IC901)
23
PWMI
I
Not used (fixed at “L”) 
24
LOCK
O
GFS is sampled by 460 Hz    “H” output when GFS is “H”
25
MDP
O
Spindle motor (M3) servo drive signal output to the SACD decoder (IC701)
26
SSTP
I
Detection signal input from limit  switch (S1)    The optical pick-up is inner position when “H”
27
FSTO
O
2/3 divider output terminal    Not used (open) 
28
DVDD1
Power supply terminal (+3.3V) (digital system)
29
SFDR
O
Sled servo drive PWM signal (+) output to the BA5983FP (IC502)
30
SRDR
O
Sled servo drive PWM signal (–) output to the BA5983FP (IC502)
31
TFDR
O
Tracking servo drive PWM signal (+) output to the BA5983FP (IC502)
32
TRDR
O
Tracking servo drive PWM signal (–) output to the BA5983FP (IC502)
33
FFDR
O
Focus servo drive PWM signal (+) output to the BA5983FP (IC502)
34
FRDR
O
Focus servo drive PWM signal (–) output to the BA5983FP (IC502)
35
DVSS1
Ground terminal (digital system)
36
TEST
I
Input terminal for the test (fixed at “L”)
37
TES1
I
Input terminal for the test (fixed at “L”)
38
VC
I
Middle point voltage (+1.65V) input from the NJM3403AV (IC004)
39
FE
I
Focus error signal input from the CXD1881R (IC001)
40
SE
I
Sled error signal input from the CXD1881R (IC001)
41
TE
I
Tracking error signal input from the CXD1881R (IC001)
42
CE
I
Chip enable signal input terminal
43
RFDC
I
Pull in signal input from the CXD1881R (IC001)
44
ADIO
O
Output terminal for the A/D converter    Not used (open)
MAIN BOARD  IC509  CXD3008Q
 (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, DIGITAL FILTER, D/A CONVERTER)
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