Ic Pin Function Description - Sony SCD-XA777ES Service Manual

SCD-XA777ES

5-39. IC PIN FUNCTION DESCRIPTION

•
MAIN BOARD IC509 CXD3008Q
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, DIGITAL FILTER, D/A CONVERTER)
Pin No. Pin Name
1 DVDD0
2 XRST
3 MUTE
4 DATA
5 XLAT
6 CLOK
7 SENS
8 SCLK
9 ATSK
10 WFCK
11 XUGF
12 XPCK
13 GFS
14 C2PO
15 SCOR
16 C4M
17 WDCK
18 DVSS0
19 COUT
20 MIRR
21 DFCT
22 FOK
23 PWMI
24 LOCK
25 MDP
26 SSTP
27 FSTO
28 DVDD1
29 SFDR
30 SRDR
31 TFDR
32 TRDR
33 FFDR
34 FRDR
35 DVSS1
36 TEST
37 TES1
38 VC
39 FE
40 SE
41 TE
42 CE
43 RFDC
44 ADIO
76
I/O
— Power supply terminal (+3.3V) (digital system)
I
Reset signal input from the I/O expander (IC902) "L": reset
I
Muting control signal input from the CPU (IC901) "H": muting
I
Serial data input from the CPU (IC901)
I Latch signal input from the CPU (IC901)
I
Clock signal input from the CPU (IC901)
O
Internal status (SENSE) signal output to the CPU (IC901)
I
Serial data transfer clock input from the CPU (IC901)
I Input pin for anti-shock (fixed at "L")
O
Write frame clock signal output to the SACD decoder (IC701)
O
XUGF signal output terminal Not used (open)
O
XPCK signal output terminal Not used (open)
O Guard frame sync signal output to the CPU (IC901)
O
C2 pointer signal output to the SACD decoder (IC701)
O
Subcode sync OR signal output to the SACD decoder (IC701) and the CPU (IC901)
O
4.2336 MHz clock signal output terminal Not used (open)
O Guard subcode sync OR signal output to the SACD decoder (IC701)
—
Ground terminal (digital system)
O
Numbers of track counted signal output to the CPU (IC901)
O
Mirror signal output to the CPU (IC901)
O Defect signal output terminal
O
Focus OK signal output to the CPU (IC901)
I
Not used (fixed at "L")
O
GFS is sampled by 460 Hz "H" output when GFS is "H"
O Spindle motor (M3) servo drive signal output to the SACD decoder (IC701)
I
Detection signal input from limit switch (S1) The optical pick-up is inner position when "H"
O
2/3 divider output terminal Not used (open)
—
Power supply terminal (+3.3V) (digital system)
O Sled servo drive PWM signal (+) output to the BA5983FP (IC502)
O
Sled servo drive PWM signal (–) output to the BA5983FP (IC502)
O
Tracking servo drive PWM signal (+) output to the BA5983FP (IC502)
O
Tracking servo drive PWM signal (–) output to the BA5983FP (IC502)
O Focus servo drive PWM signal (+) output to the BA5983FP (IC502)
O
Focus servo drive PWM signal (–) output to the BA5983FP (IC502)
—
Ground terminal (digital system)
I
Input terminal for the test (fixed at "L")
I
Input terminal for the test (fixed at "L")
I
Middle point voltage (+1.65V) input from the NJM3403AV (IC004)
I
Focus error signal input from the CXD1881R (IC001)
I
Sled error signal input from the CXD1881R (IC001)
I
Tracking error signal input from the CXD1881R (IC001)
I
Chip enable signal input terminal
I
Pull in signal input from the CXD1881R (IC001)
O
Output terminal for the A/D converter Not used (open)
Description