Hitachi DA-600 Service Manual page 22

HITACHI DA-600
2. Servo LSI HA12064A (IC101) : LSI asservi HA12064A (1C101) - Servo-LSI HA12064A (1C101)
|
®@ iain eee. @)
Fig. 21
Abb. 21
re - - =) = — =
oes eel
D—\ Ei <J
SL -
@)
CCR
3dB step x 4
a ) iss hoes atl
discrminator/
comparator
1 = step x
= :
5 mia an 2.5dB / step x 8
ALC
©
QJ
12) Track center
detector
49
LOAD CNT
4 bits x 4 stages G)
|
Mirror surface
detector/
FE
@ -——
ee ) ES EEE ene
TR loop Brake Jump pulse G3)
beret Ee switch mdth ia generator
eee controller limiter DFE 4
Mirror i Pit i Pit surface Hl Mirror
surface surface envelope envelope
DET OET DET DET
(14m mm (3nd som?) C2 = QC? 2 ces me a? 4) we 286)
Fig. 22
Abb. 22
Pin Functions of HA12064 (1C101) - Stift-Funktionen von HA12064 (IC101) -
Fonctions des broches de HA12064 (iC 101)
Pin No. Pin symbol Function
Stift-Nr. Stift-Symbol Funktion
No broche Symbole broche Fonction
—5V
Disc motor control lamp voltage generation terminal
Spannungserzeugung-Anschluf& fir Disc-Motor-Kontrollampe
Borne générant la tension de la lampe de commande du moteur d'entrainement de disque
CLV controller control input terminal
CLV-Regler-Kontrolleingang-Anschluf&
Borne d'entrée de commande du contréleur CLV