Read Sony SCD-XA333ES Service Manual online
74
SCD-XA333ES
•
MAIN BOARD IC902 CXD1095BR (I/O EXPANDER)
Pin No.
Pin Name
I/O
Description
1
LIM SW
I
Detection signal input from limit in switch (S1)
The optical pick-up is inner position when “H”
The optical pick-up is inner position when “H”
2
WISE
I
Direction of rotation signal input terminal Not used (open)
3
F COML
I
Focus jump L signal input terminal Not used (open)
4
SPCNTL1
O
Spindle motor control signal 1 input terminal Not used (open)
5
SPCNTL0
I
Spindle motor control signal 2 input terminal Not used (open)
6
TBLL
O
Table motor drive signal (counterclockwise direction) output terminal Not used
7
TBLR
O
Table motor drive signal (clockwise direction) output terminal Not used
8
VSS
—
Ground terminal (digital system)
9
REM CODE
—
Not used (open)
10
D SENS
I
Disc status detection signal input from the disc sensor Not used
11, 12
S1, S2
I
Disc tray position detection signal input from the table address detect Not used
13
LOAD OUT
O
Loading motor drive signal (loading out direction) output to the BA5912AFP (IC512)
14
SDCNTL
—
Not used (open)
15
LOAD IN
O
Loading motor drive signal (loading in direction) output to the BA5912AFP (IC512)
16
A1OUT
O
Sircs remote control signal output of the CONTROL A1II Not used
17
NC
—
Not used (open)
18
RST DSD
O
Reset signal output to the DSD decoder (IC801) and CXD9647R (IC803) “L”: reset
19
RST DP
O
Reset signal output to the display controller (IC1001) “L”: reset
20
RST DVD
O
Reset signal output to the CXD1882R (IC701) “L”: reset
21
RST CD
O
Reset signal output to the CXD3008Q (IC509) “L”: reset
22
VMOD
O
Power on/off control signal output for modulation circuit on optical pick-up block
“L”: power off, “H”: power on
“L”: power off, “H”: power on
23
VSS
—
Ground terminal (digital system)
24
VDD
—
Power supply terminal (+3.3V) (digital system)
25
MULTI
O
Multi/2ch selection signal output teminal “L”: 2ch, “H”: multi
26
SDEN
O
Serial data enable signal output to CXD1881R (IC001)
27
ISBTEST
O
Output terminal for disc inspection mode to DSD decoder (IC801)
28 to 30
D0 to D2
I/O
Two-way data bus with the CXD1882R (IC701) and CPU (IC901)
31, 32
NC
—
Not used (open)
33 to 37
D3 to D7
I/O
Two-way data bus with the CXD1882R (IC701) and CPU (IC901)
38
XCLR
I
Clear signal input terminal Not used (fixed at “H”)
39
XDIS
I
Reset signal input from the CPU (IC901) “L”: reset
40
VSS
—
Ground terminal (digital system)
41
XWR
I
Write strobe signal input from the CPU (IC901)
42
XRD
I
Read strobe signal input from the CPU (IC901)
43
XCS
I
Chip select signal input from the CPU (IC901)
44 to 46
A0 to A2
I
Address signal input from the CPU (IC901)
47
SWGUP
O
Sub woofer gain up control signal output terminal “H”: gain up
48
PE1
—
Not used (open)
49
NC
—
Not used (open)
50
TRKFIL
—
Not used (open)
51
XDAC333
O
CD mode selection signal output to the CXD9647R (IC803)
52
DFCTEN
O
Defect signal output terminal Not used
53
XZLAT
O
Serial data latch pulse signal output to the CXD9647R (IC803)
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