Read Sony CDX-MP80 Service Manual online
16
CDX-MP80
• IC11 HD6432238RWN31TEIV (CD SYSTEM CONTROL) (SERVO BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
TEST
I
Test mode select signal input
2
DEC XRST
O
DEC reset output
3
DEC STBY
O
DEC standby mode control signal output
4
XRDE
O
DRAM data read-out enable signal output
5
NC
O
Not used. (Open)
6
XWRE
O
DRAM write-in enable signal output
7
SCLK
O
SENS read-out serial clock signal output
8
SENS
I
SENS signal input
9
CD CLK
O
CD servo serial clock signal output
10
CD DAT
O
CD servo serial data output
11
CD LAT
O
CD servo latch signal output
12
CVCC
—
Power supply pin (+3.3 V)
13
DAC MUTE
O
DAC mute control signal output Not used in this set. (Open)
14
VSS
—
Ground pin
15
MUTE
O
Audio mute control signal output
16
XRST
O
CD servo reset signal output
17
XQOK
O
CD servo sub-code Q OK signal output
18
EMPH
O
Emphasis control signal output Not used in this set. (Open)
19
GFS
I
GFS signal input
20
FOK
I
FOK signal input
21
APC2
O
APC control signal output 2
22
APC1
O
APC control signal output 1
23
SPST
O
Spindle kick signal output
24
RW SEL
O
Not used. (Open)
25
RF SW
O
Not used. (Open)
26
SIZE
I
Not used. (Open)
27
D IN
I
Not used. (Open)
28
D OUT
I
Not used. (Open)
29
LIM SW
I
PU inner detect SW signal input
30
PSB
O
Mute signal output
31
PC TX
O
Bus data output
32
PC RX
I
Bus data input
33
IN SW
I
Not used. (Open)
34
LM LO
O
Not used. (Open)
35
LM EJ
O
Not used. (Open)
36
EJECT OK
I
Front panel open mode signal input Connecting to VCC (+3 V) in this set.
37
CLOSE OK
O
Not used. (Open)
38
SCOR
I
Sub-code sync detect signal input
39
TRAY LAMP
O
Not used. (Open)
40
GRSCOR
I
DRAM controller sub-code sync detect signal input
41
HS
O
High speed signal output
42
AVSS
—
Ground pin
43
TE BAL ADJ
O
TE balance adjustment signal output
44
DRAM
O
Not used. (Open)
45
D SW
I
Disc chucking detect signal input Connecting to ground in this set.
46
TRAY CUR
I
Tray current detect signal input Connecting to ground in this set.
47
KEY0
I
Test mode key SW input
48
KEY1
I
Test mode rotary SW input
49
NC
I
Connecting to ground in this set.
50
NC
I
Connecting to ground in this set.
51
TEMP
I
Tempareture detect signal input Connecting to ground in this set.
52
NC
I
Connecting to ground in this set.
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