Table of Contents
Advertisement
CHECKING
THE CD
a.
PREPARATIONS
E
.
PLAYER
EYE PAlTERN
..
(a) Measuring
instruments,
tools and filter
.44
(1) Test disc. : YEDS 18 (SONY) or etc.
(2) Oscilloscope : SS5711 (1O MHz or dual-phenomenon)
or Memory scope : DSS6521
(Storagescope)
(3) Resistor, Carbon 2.2 K ohm, l/4W
b. PARTS
LOCATION
I
c.
CHECKING
THE EYE PATTERN
(1)
Switch ON the DC power.
(2) Connect an oscilloscope to ICI 01 ( pin 41 ) (RF)
and IC101 ( pin 58 ) ( VC ).
(3)
Load the test disc.
(4)
PLAY switch push ON.
(5) Check to be sure that the " eye " pattern is at the
center of waveform and that the diamond shape is
clearly defined.
(6)
Press the STOP button.center
(7) Switch OFF the DC power.
-7-
Klol
2.2Kohm
piu 41
~
(Ku)
Klol
@n 58
O—
(,WC)
PENING E XPANOED
r
. .
. .
OSCILLOSCOPE
Advertisement
Table of Contents
