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VARIABLE
LINE OUT
wer
contro]
Actuotor
FEO
@
FE@
a
—| m Ps]
=
—
NAL FUNCTION OF MICRO COMPUTER (MN15844PCU)
Synchronizing signal extracted
from disc
switch ON/OFF at ''H"'
Input for sub-code test from
EFM demodulator.
Tracking error signal input terminal
Oe
| Disc holder close command
Attenuation ON/OFF,
Ea
ATSB
eed
effective at "H"'
Pause indicator display
ae
p72 | pause a
(Light up at "H")
ee
Muting reay ON/OFF.
Effective with de-emphasis
+ Q 2 4
ol|=
n a
4
Q
FF
iw] Qa ras
=
Cc 4
m
N
Q
xv ie} Nn
Turntable ON/OFF select.
(ON at "L"')
Turntable stop command
(stop at "L"')
Turntable drive command
ACE
(ON at "H")
37
P70
CLV servo selection command
Tracking servo ON/OFF select
TRVE
Tracking servo ON/OFF select
VREF
Kick direction (Reverse) command
STROBE
Traverse servo standard detection
Play indicator display
Traverse servo standard detection
PIs
PLAY
a
(Light up at 'H'')
Laser diode, focus servo ON/OFF
Traverse Reverse command,
effective with ''H'' pulse
Kick direction (Forward) command
(es) Pd
UNDG
D
Not used
an
|| 3
2 a
N Ns
(Micom is reset at "L'')
Pe)
n
=
oa ~
Traverse Forward command,
effective with "H'' pulse
Key scan input
47
8
Nn oa
Sub-code terminal
Turntable stop command.
29
Display data (Digit) and key
matrix data output
Not used
30
[3]
an
2
3 re) R
RF signal detection, effective at "L" | 31
oO
i ce a
e e eas
cm
cm
fer [es
cm
Track Jump control
32
= N ~N
o!]
m -+||
0 Axia
ala
o 4 clon
oatir
={a/
zi
oi
v2 a x
ola
al x
212lall
oj m m fe)
alm
Alo
AA
Fl
Bim
>
5V s629
(up)
RFDEL
S630
BREAK
TTON
(down)
5V
Spindle
motor
drive
15V
15V
ss
Battery
ae
ae
1€403
TICK
;
CLV
Servo
—
, 1¢504
PLL
Ci
it
0%
Spindle
treut
A
motor
3)
element
1C304
1C303
>
Va
va
£
13
L 1c303
«= 1c303
2
L30!
;
os
ok
PLL adj.
vco
0.12p1s(8.64MHz)
4Vp-p
:
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