Technics SL-P222A - Page 15

e 10401 (MN1554PJE-2): System control
SL-P222A
de
=.
-
SS:
Pin
VO
.
Pin
1/0
:
No.
Mark
|
Division
Function
No.
Mark
Division
Function
1
VSS
|
GND
termina!
32
TR
ON
oO
Tracking
servo
ON
command
2
DMUTE
oO
Data
mute
command
33
VDD
|
Power
supply
(connected
to
+5V)
3
MDATA
ie]
Mode
control
data
34
NC
-
Not
connected
|
4
MCLK
0
Data
clock
for
MDATA
35
NC
-
Not
connected
Load
command
for
mode
control
]
5
MLD
|
(@)
data
36
P53
-
[
No
used,
open
6
NC
-
Not
connected
37
P60
!
Period
det.
select
signal
input
7
NC
=
Not
connected
38
POL
!
Period
det.
select
signal
input
8
INH
ie)
Track
loss
det.
signal
output
39
SKATE
l
Period
det.
select
signal
input
9
MUTE
oO
Muting
signal
output
40
STAT
{
Status
command
for
CRC
etc....
10
EMPH
ce)
Deemphasis
command
41
SPO
11
NC
—
Not
connected
42
SP1
!
Speed
control
code
input
12
sIRQ
|
Track
loss
det.
signal
input
43
SP2
Sub-code
Q
data
block
clock
44
SP3
13
BLKCK
I
(75
Hz)
_|
L
T
45
RECV
I
Data
receipt
command
signal
14
CLDCK
|
Sub-code
Q
data
frame
clock
+
(7.35
KHz)
46
SEND
!
Data
transmission
command
signal
15
NC
=
Not
connected
47
ACK
|
Data
discrimination
signal
16
SuBQ
I
Sub-code
QO
data
48
CLK
|
Data
clock
signal
V7
RESET
|
Reset
command
|
49
|
DATAO
18
TL
|
Track
loss
signat
50
DATA1
‘
=
|
K
i
19
|
REDIG
Radial
error
digital
st
|
mere
sy
ecaietenel
20
HFD
|
HF
detector
output
for
PLLH
52
DATA3
———
i
.
si
53
M
1
TRAY
SW
|
es
holder
open/close
det.
signal
CMDO
put
22
DIV4
0
Radial
digital
divided
by
four
|
54
|
EMD
emer
Storie
ey
vTOR
O
Command
signal
of
access
mode
f
ss
|
CMD2
23
DODS
0
Drop
out
detector
suppression
56
CMD3
24
MODEA
-
Not
used,
open
57
NC
z
Notconnected
25
FR/REV
-
Not
used,
open
58
Nc
_
Noteonnected
a
26
BO
59
NC
-
Not
connected
27
Bi
On/off
control
for
laser
supply
oO
Contro!}
bits
for
radial
circuit
a
Sune
io
4
and
focus
circuit
ae
a2
61
osc2
Clock
input
4
[eee
B3
62
Osc1
|
Clock
input
(4.2336
MHz}
30
[
CLOSE
oO
Disc
tray
“‘close’’
detection
63
XI
;
Bigissl
GApUEOE
<idnal
[
31
|
OPEN
ie]
Disc
tray
‘‘open’’
detection
64
xO
a
Not
used,
open
as ee