Technics SL-P202A - System Control

SL-P202A
e 1C401 (MN1554PJE-2): System control
—+ I
Pin VO . Pin 1/0 ‘
No. Mark Division Function No. Mark Division Function
1 vss | GND terminal TR ON oO Tracking servo ON command
2 DMUTE 0 Data mute command 33 VDD I Power supply (connected to +5V)
af —+ t
3 MDATA 1@) Mode control data 34 NC — Not connected
4 MCLK oO Data clock for MDATA 35 NC - Not connected
5
MLD
O
Tose
command
for
mode
control
36
=
[
a
Nocueconen
a
1a
+
6
NC
a
Not
connected
37
P60
I
Period
det.
select
signal
input
+
7 NC = Not connected 38 POL | Period det. select signal input
: =]
8 INH oO Track loss det. signal output 39 SKATE 1 Period det. select signal input
4
9 MUTE oO Muting signal output 40 STAT { Status command for CRC etc....
10 EMPH oO Deemphasis command SPO
11 NC - Not connected SP1
! Speed control code input
12 SIRQ I Track loss det. signal input
Sub-code Q data block clock
13 BLKCK | (75 Hz) |
r i} Data receipt command signal
14 GLDCK | rea Q data frame clock
(7.35 KHz) I Data transmission command signal
Not
connected
|
Data
discrimination
signal
a +
Sub-code
Q
data
I
Data
clock
signal
Reset command
Track loss signal
Radial
error
digital
!
Key
scan
signal
HFD HF detector output for PLLH
L
4
4 TRAY SW | a holder open/close det. signal
put
: 5 os ag f
22
DIV4
oO
Radial
error
digital
divided
by
four
re)
Command
signal
of
access
mode
23 DODS ie) Drop out detector suppression
4
MODEA
-
d
]
L
2.
oO
Not
used,
open
-
Not
connected
FR/REV
3
|
25
/RE
Not
used,
open
-
Not
connected
LL
26
BO
-
Not
connected
27
B1
ste
iptedhs
1/0
On/off
control
for
laer
supply
|
SSS
ane
(@)
Control
bits
for
radial
circuit
and
focus
circuit
28
B2
|
Clock
input
29
B3
|
Clock
input
(4.2336
MHZ)
30 CLOSE oO Disc tray “‘close’’ detection oak cas ;
! Digital input of signal
1 . a " :
[
3
OPEN
Oo
Disc
tray
“‘open’’
detection
=
Not
used,
open
—~15—