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5-1
1985-07-01
BLOCK DIAGRAM
| c.0.M.-2
| seRvo + HF AMPLIFIER
CIRCUIT
|
|
|
|
|
|
|
HF in
H
01-4
YLZLZLLIL LIL EL
pibaGe
f=} —
=
PHOTO DIODF SIGNAL
ee
+ 4
25
| TO_CONTROL
'AND
ae 5
NCES
DIGITAL AUDIO
HF
ZPLLLLLLLL
LL LL LL
TO DEMOD
AFD
TO DEMCD
|
|
|
DODS
:
|
Qctock
|
FROM DEMOD
|
Qdata
ons
FROM DEMOD
ner
|
(via 6302)
4
———_
7
MUTE | 10 DEMOD
SERVO uP
AND ERCO
OEEMPH | to oreMPH
j ciRcuiT
|
y
|
PEZZIZI ZALES
|
TURNTABLE
|
f
MOTOR
|
|
CONTROL
FROM ERCO
|
i
|
7
|
H
|
|
TDA 5709
:
RADIAL ERROR
|
7
PROCESSOR
|
|
|
|
:
|
|
fe
nen er
ce
ee
tame ca
Ee
J
CS 102 319
Q CLOCK
-
PRS.00498
Subcode clock input for servo pP
Subcode data input for servo pP
Subcode synchronization input for
servo uP
Radial error signal (amplified
RE1-RE2 currents)
Radial error signal 1 (summation of
amplified currents D, and D,)
Radial error signal 2 (summation of
amplified currents D, and D,)
Radial error digital
Radial error signal for LAG network
Ready signal, starting up procedure
finished
On/off control for laser supply and
focus circuit
Track lost signal
Control voltage for turntable motor
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