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SOESDII
§CDP-502ESII/55 2ESDII/620ESII/650ESDII
The following is a simple adjustment method.
ary in
— Primary Adjustment —
7
rer
Note: Since exact adjustment cannot be performed, remem-
if it is
"ae
p
ber the positions of the controls before performing the
Jo not
adjustment.
If the positions after the primary adjust-
ment are only a little different, return the controls to
the original position.
follow-
oscilloscope
hanical
4
(DC range)
qaiice
Procedure:
;
servo board
C)
é
—————
nt is at
TP FE O<———_z—————_0 +
|
1a.
2-axis
!
TP TEOm- -7
*k and
.
1. Keep the set horizontal.
If the
set
is not
horizontal,
this adjustment
below
cannot be performed due to the gravity against
the 2 axis device.
. Put set in adjustment mode. (See page 23.)
. Insert disc (YEDS-1) and press
> PLAY button.
: Connect oscilloscope to servo board TP FE.
vA
fF
WwW
WN
. Adjustment
RV201
so that the waveform
is as
shown in the figure below. (focus gain adjustment)
VOLT/DIV:
100mvV
TIME/DIV:
2mS
®
Incorrent
Examples
(DC level changes more than
on adjusted waveform)
low focus gain
VOLT/DIV:
100mvV
TIME/DIV:
2mS
I—-O v
TIME/DIV:
2mS
6. Connect oscilloscope to main board TP TE.
7. Adjust RV202 so that the waveform is as shown in
the figure below.
(tracking gain adjustment)
VOLT/DIV:
1V
TIME/DIV:
2mS
@
Incorrect Examples (fundamental wave appears)
low tracking gain
VOLT/DIV:
1V
TIME/DIV:
2mS
m—
OV
high tracking gain
(higher fundamental wave than for low gain)
VOLT/DIV:
1V
TIME/DIV:
2mS
—oOv
Adjustment Location: servo board
°
°
RV202
RV201
( mie)
( focus )
low
high
gain
gain
gain
gain
CDP-502ESI/I/55 2ESDII/620ESII/650ESDII
SECTION
4
DIAGRAMS
CIRCUIT
BOARDS
LOCATION
power SW board
A
load out SW board
subcord board
(CDP-502ESII/620ESI!)
output board
(CDP-552ESDII
/650ESDII)
B
C
headphone jack board
audio board
open SW board
servo board
display board
remote control motor board
D
keyboard SW board
remote control VR board
BU-1C (base unit)
BSL motor board
flexible board
E
RR,
RF board
F
{ N
FLEXIBLE BOA
to servo board
(CONDUCTOR
to servo board
BQ
servo board
[By to servo board
chucking motor board
in SW board
L/C SW board
4-1.
BU-1C
(BASE
UNIT) SECTION
M
1
2
AN
sued coll
fi]
{UNA
SQ
2
\\
——
Q
FINISH:
START TO ROTA
RD(1/4
ata |
(8%
zs
ee
2.
e?
_ :
LASER DIODE
BLK,
SMGQAQ
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