Sony SCD-XA777ES Service Manual page 89

• MAIN BOARD IC902 CXD1095BR (I/O EXPANDER)
Pin No.
Pin Name
1 LIM SW
2
WISE
3
F COML
4 SPCNTL1
5
SPCNTL0
6
TBLL
7
TBLR
8 VSS
9
REM CODE
10
D SENS
11, 12
S1, S2
13 LOAD OUT
14
SDCNTL
15
LOAD IN
16
A1OUT
17 NC
18
RST DSD
19
RST DP
20
RST DVD
21 RST CD
22 VMOD
23
VSS
24
VDD
25 MULTI
26
SDEN
27
ISBTEST
28 to 30
D0 to D2
31, 32 NC
33 to 37
D3 to D7
38
XCLR
39
XDIS
40 VSS
41
XWR
42
XRD
43
XCS
44 to 46 A0 to A2
47
SWGUP
48
PE1
49
NC
50 TRKFIL
51
XDAC333
52
DFCTEN
53
XZLAT
I/O
Detection signal input from limit in switch (S1)
I
The optical pick-up is inner position when "H"
I
Direction of rotation signal input terminal Not used (open)
I
Focus jump L signal input terminal Not used (open)
O Spindle motor control signal 1 input terminal Not used (open)
I
Spindle motor control signal 2 input terminal Not used (open)
O
Table motor drive signal (counterclockwise direction) output terminal Not used
O
Table motor drive signal (clockwise direction) output terminal Not used
— Ground terminal (digital system)
—
Not used (open)
I
Disc status detection signal input from the disc sensor Not used
I
Disc tray position detection signal input from the table address detect Not used
O Loading motor drive signal (loading out direction) output to the BA5912AFP (IC512)
—
Not used (open)
O
Loading motor drive signal (loading in direction) output to the BA5912AFP (IC512)
O
Sircs remote control signal output of the CONTROL A1II Not used
— Not used (open)
O
Reset signal output to the DSD decoder (IC801) and CXD9647R (IC803) "L": reset
O
Reset signal output to the display controller (IC1001) "L": reset
O
Reset signal output to the CXD1882R (IC701) "L": reset
O Reset signal output to the CXD3008Q (IC509) "L": reset
Power on/off control signal output for modulation circuit on optical pick-up block
O
"L": power off, "H": power on
—
Ground terminal (digital system)
—
Power supply terminal (+3.3V) (digital system)
O Multi/2ch selection signal output teminal "L": 2ch, "H": multi
O
Serial data enable signal output to CXD1881R (IC001)
O
Output terminal for disc inspection mode to DSD decoder (IC801)
I/O
Two-way data bus with the CXD1882R (IC701) and CPU (IC901)
— Not used (open)
I/O
Two-way data bus with the CXD1882R (IC701) and CPU (IC901)
I
Clear signal input terminal
I
Reset signal input from the CPU (IC901) "L": reset
— Ground terminal (digital system)
I
Write strobe signal input from the CPU (IC901)
I
Read strobe signal input from the CPU (IC901)
I
Chip select signal input from the CPU (IC901)
I Address signal input from the CPU (IC901)
O
Sub woofer gain up control signal output terminal "H": gain up
—
Not used (open)
—
Not used (open)
— Not used (open)
O
CD mode selection signal output to the CXD9647R (IC803)
O
Defect signal output terminal Not used
O
Serial data latch pulse signal output to the CXD9647R (IC803)
Description
Not used (fixed at "H")
SCD-XA777ES
89