Advertisement
m@ BLOCK DIAGRAM
ARM MOTOR DRIVE-
\
By
and BLANK GROOVE |
9
4 shoes
;
:
DETECTION
\
spre
drive
\
0.24usecl4,193MHz)
TURNTABLE
( | ( |
isc
rom
;
0.5
CONTROL
1.9ysec(524kHz)
13
\
\
Tl
PC2
—
|
i
=
—ESESEew[
SS
al sl
a
1
l2v
Q307
\
x20!
Tem
|
Sp
\
J
3]
quart
Divid
Divid
ie
uartz
vider
ivider
| ceca
ey
te] oat.
Homey
es
v0 ii
Resolution
adj.
5V
45
—
524kue
compar ator
33rpm
20msec(50,5H2)
0.3
45rpm |4msec(68,25H2)
AF
pag:
KEY MATRIX
27m
PA3 Ps
A.
:
Waveform
ceeae
scevod
| «S307~S314
2
cal >
Schmitt T| shaping
:
vss
ar
ee
pao|, $303©s304®
$302
. oy OL
)
75 |
F.Gamplifier
in
ears
=
Strob
" P o reabe Seo
ee
pa3
2 |©
+B
Motor
,}DI
Brake
timer
a
¢
-
fe.
o'9
O
L
OD
H
%s317
Yszis
YPsaie
PG2 os
PGO 9
PGI 9
NH: Stop
L: Start
CUEING TIMER
Current feedback
amplifier
+ Cartridge
12V
rs Stylus
position
9
prevention
Inverse
circult
sand rocesshg
element
re
°
|
sand
rocesshg
Eereeene
ruled
a8
re. Muting relay
—
| Pe
t¢)
lat
L_vol
=. ai
az|As jaa _|
PJO
ry
ey
&
7
cs
="
ay
$ a
ty
4840!
ad)
x
Be
Sa
fee
|
=
*
a
me
ses
|
"8
1¢302
poe
ae comes
Position detector
Reset
sid
OFFSET ERROR ANGLE
TURNTABLE DRIVE
DETECTION
abides
L '33rpm
Waveform
|
shaping
:
:
—
=
— 4 —
Advertisement
