Sony CDP-590 - Primary Adjustment; Incorrect Examples

CDP-590
The
following is a simple
adjustment method.
-Primary Adjustment
-
Not©
:
Since
exact adjustment cannot
be performed.
remember
the positions of the controls before
performing
the adjustment.
If
the position after the primary
adjustment are
only
a
little different, return
the controls to the
original position.
Procedure :
oscilloscope
(DC
range)
main board
TP (FEO)
TP (TEO)
1.
Keep the
set horizontal.
/If
the set
is not horizontal,
this
adjustment
cannotN
( be performed
due to
the gravity
against the
2-axis
|
\
device.
/
2. Set disc (YEDS-18)
and
turn POWER
switch on.
3.
Connect
oscilloscope
to main amp
board TP
(FEO).
4.
Adjust
RV103 so that
the waveform
is as shown
in the
figure
below,
(focus
gain adjustment)
VOl.T/DIV
: lOOmV
TIME/DIV
: 2mS
•
Incorrent
Examples
(DC level
changes
more
than on
adjusted
waveform)
5.
Connect oscilloscope
to
main board
TP (TEO).
6.
Adjust
RV104 so
that the waveform
is
as
shown
in the
figure
below, (tracking gain
adjustment)
7.
Turn
POWER switch off.
VOLT/f)IV
:
IV
TlME/DlV :
2mS
OV
•
Incorrect Examples
(fundamential
wave
appears)
high
tracking gain
(higher fandamenlial wave than for
low gain)
VOLT/DIV
:
IV.
TIME./DIV:
2mS
OV
Adjustment
Location
: main
board -component
side-
-
5
-