CD- E770
•CXA-1081S<RF AMP>
RFO(2>
Eye
Pattern
^
Check
Point
UD
APC
LD AMP
Output
PD
APC
LD AMP
Input
Tracking
^
Error
Stgnol
TrackingzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
j
Offset
Adiusl
<Functions of
Main
Ternriinals>
LDON:
This
signal is output from pin 30
of
the mechanism control processor CXP5034. CXP5034 outputs
an
"L" signal when, for example, the tray
is
closed.
When
the level of the
LDON
terminal (CXA1081S)
is
"L",
a
control voltage is output from pin
5
(LD)
to
operate the APC amplifier
(including Q1).
FOK: The timing signal for turning the focus servo
ON
is output from the servo control
IC
(CXA1082AS).
When
the
RF
signal
is
input to the
RF
terminal (pins 1 and 2), and the
RF
is
a
certain value, the level changes
to
"H".
This
"H" signal
is
used as timing for switching
ON
the focus servo.
4
To Next Page
Loading...