Sony SCD-XA777ES Service Manual page 87

• MAIN BOARD IC901 CXP973F064R-1 (CPU)
Pin No. Pin Name
1 MODE DF
2 AMUTE
3 DOCTRL
4 LAT DAC
5 DATA DAC
6 CLK DAC
7 FCS JMP 4
8 FCS JMP 3
9 SENS CD
10 XCS2
11 XCS IO
12 XCS DVD
13 VSS
14 to 21 D0 to D7
22 INT0 DVD
23 INT1 DVD
24 T SENS
25 MON DVD
26 DATA CD
27 XLAT CD
28 A1IN
29 COUT CD
30 IN SW
31 OUT SW
32 MIRR
33 SUBQ
34 SCOR
35 SQCLK
36 NC
37 CLOK CD
38 XRST
39 VSS
40 XTAL
41 EXTAL
42 VDD
43 LD ON
44 XDIS IO
45 MUTE DSD
46 XMSLAT
47 READY DSD
48 SDIN DSD
I/O
SACD/CD mode selection signal output to the data selector (IC304, 306, 307, 308)
O
"L": CD mode, "H": SACD mode
O
Muting on/off signal output to the analog line circuit "L": muting on
Digital out on/off control signal output to the CXD3008Q (IC509)
O
"L": digital out off, "H": digital out on
O
Serial data latch pulse signal output to the D/A converter (IC904)
O Serial data output to the D/A converter (IC904)
O
Serial data transfer clock signal output to the D/A converter (IC904)
O
Focus jump 1 signal output to the BA5983FP (IC502)
O
Focus jump 2 signal output to the BA5983FP (IC502)
I Internal status (SENSE) signal input from the CXD3008Q (IC509)
O
Chip select signal output to the D-RAM Not used (pull up)
O
Chip select signal output to the I/O expander (IC902)
O
Chip select signal output to the CXD1882R (IC701)
— Ground terminal (digital system)
I/O
Two-way data bus with the CXD1882R (IC701) and I/O expander (IC902)
I
Interrupt signal input from the CXD1882R (IC701)
I
Interrupt signal input from the CXD1882R (IC701)
I Disc tray status detection signal input from the table sensor Not used
I
Monitor signal input terminal Not used (open)
O
Serial data output to the CXD3008Q (IC509)
O
Serial data latch pulse signal output to the CXD3008Q (IC509)
I Sircs remote control signal input of the CONTROL A1II Not used
I
Numbers of track counted signal input from the CXD3008Q (IC509)
I
Loading in switch (S001) input terminal "L": loading in
I
Loading out switch (S002) input terminal "L": loading out
I
Mirror signal input from the CXD3008Q (IC509)
I
Subcode Q data input from the CXD3008Q (IC509)
I
Subcode sync (S0+S1) detection signal input from the CXD3008Q (IC509)
O
Subcode Q data reading clock signal output to the CXD3008Q (IC509)
—
Not used (open)
O
Serial data transfer clock signal output to the CXD3008Q (IC509)
System reset signal input from the reset signal generator (IC905) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
—
Ground terminal (digital system)
I System clock input terminal (20 MHz)
O
System clock output terminal (20 MHz)
—
Power supply terminal (+3.3V) (digital system)
Laser diode on/off control signal output to the CXD1881R (IC001)
O
"L": laser diode off, "H": laser diode on
O
Reset signal output to the I/O expander (IC902) "L": reset
Muting on/off signal output to the DSD decoder (IC801) and CXD9647R (IC803)
O
"H": muting on
O
Serial data latch pulse signal output to the DSD decoder (IC801)
I
Ready signal input from the DSD decoder (IC801) and CXD9647R (IC803) "L": ready
I
Serial data input from the DSD decoder (IC801) and CXD9647R (IC803)
Description
SCD-XA777ES
87