Sony CDP-750 - IC101 (MSC6458) Details; IC101 Pin Function Descriptions

cDP-68/207ESD
/750
Description
of IClol
(HSC6458)
IC101 has the
following
functions:
.
Dr-gitaI
signal
output to operation
. Sub
Q
signal
loading
and
processing
. Fl-uorescent
display
(FLD)
control
. Servo
circuit
control
Pin
Function
Key
Prn No.
r/o
on
I D IRC
Jump
pulse
inversion instruction
during I track
I UmD-
2
CLK
o
Command transfer
of
cLock to SSP
(IC2)
and
DSp
(rc3).
3
DÀTÀ
Command transfer
of
data to SSP
(IC2)
and
DSP
(rc3)
-
XLT
Command transfer
of latch to SSP
(IC2)
and DSP
(TC3)
-
5
M- SYNC
REC
("H'
for 300msec durinq mutino)
6
P- SYNC
Sync
REC
(nH"
for
300msec when mutinq
is off)
7 S ENSE
SSP
(IC2)
and
DSP
(IC3)
sense information-
I SYNC ON T
Svnc REC
(nl,n
in REC mode)
9 S IRSC
Remote
control siqnal innut.
IO
qaôp
I
O code read timinq-
11
ttr
UP
o
Remote controller.
nL'
when volume is
beinq
increased.
t2
"Ln
in
PLAY mode
13
AMUTE
o
Al-I mutinq. OutDut to DSP
(IC3)
MIITG.
l4
DMUTE
o
Software muting.
Output to digital filter
(IC4)
softhrare.
tf
SUBO I
Subcode data-
16 SOCLK
t,
Subcode data
read clock.
I7
brb
I
nHn
when CLV is locked.
IB FOK I
"H"
when focus is on-
19
KEYO I Kev matrix incut,
nH"
active.
20 KEYf
Key matric
input,
"H"
active.
21 KEY2 Kev mâtrix inoLrt-.
r'Hrractive-
zz
KEY3 I Kev matrix input,
"Ht'
active.
23 KEY4
Kêv hâl-ri v i nnrrÈ -
trIlil
acf i
vFvq
I Kev matrix input,
"H"
active.
T N Sl^I
2b
LDON
^
Laser
on/otf.
27 IPS,/OUTSW r/o Flmohasis on/of f
(drrrino
loadino) - Lôadi no OtlT sI^I-
2B I,ODOUT o Loadino motor control.
20