15
• IC5 CXP84640-072Q (CD SYSTEM CONTROL) (SERVO BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
ITRPT
—
Not used in this set.
2, 3
—
—
Not used in this set.
4, 5
NCO
—
Not used in this set.
6
OPEN
I
Front panel open detection input
7
CLOSE
O
Front panel close control output
8
LINKOFF
I
Bus interface link input
9
NCO
—
Not used in this set.
10
D SW
I
Down switch input (SW4)
11
SSTP
I
Limit switch input (SW3)
12, 13
NCO
—
Not used in this set.
14, 15
—
—
Not used in this set.
16
EMPH O
O
De-emphasis ON/OFF control output
17
CDMON
O
CD mechanism deck power control output
18
CD ON
O
CD power control output
19
A MUT
O
System attenuate control output
20
LD ON
O
Laser power ON/OFF control output
21
CD RST
O
CD system reset output
22
HOLD
O
Hold switch output
23
AGC CONT
O
AGC control output
24
—
—
Not used in this set.
25
PH3
I
Not used in this set.
26
TSTIN0
I
Not used in this set.
27
TSTIN1
I
Not used in this set.
28
TST.CLV
I
Not used in this set.
29
NCO
—
Not used in this set.
30
RESET
I
System reset input (“L”=Reset)
31
X IN
I
X’tal oscillator input from system clock. (10 MHz)
32
X OUT
O
X’tal oscillator output for system clock. (10 MHz)
33
GND
—
Analog ground
34
XT OUT
O
Not used in this set.
35
XT IN
I
Not used in this set.
36
AVSS
—
A/D converter ground
37
AVREF
I
A/D converter reference voltage input
I
Not used in this set.
I
Not used in this set.
I
Sled drive input
I
Not used in this set.
I
Fixed at “H” in this set.
I
Fixed at “H” in this set.
I
Fixed at “H” in this set.
O
CD-TEXT data read clock output
I/O
Lock signal input/output
—
Not used in this set.
48
SCK2
O
Sub Q read clock output
49
SI2
I
Sub Q 80 bit, PCM peak and level data 16 bit input.
50
—
—
Not used in this set.
51
BUS CLK
I/O
Bus system serial clock input/output
52
BUS SI
I
Bus system serial interface input
53
BUS SO
O
Bus system serial interface output
54
F OK
I
Focus OK signal input
55
GFS
I
GFS signal detection input
56
TEST MODE
I
Fixed at “H” in this set.
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