Sony CDP-590 - Simple Adjustment; Adjustment Location; Main Board

Gain
Symptoms
^
Focus
Tradcing
•
The time
until music starts
becomes longer for STOP
-»>PLAY or automatic
selection (!<
PW
buttons)
pressed.
(Normally
takes
about 2 seconds.)
low
low or high
• Music
does
not start
and
disc continues to rotate for
STOP
-t>PLAY
or auto-
matic selection
(!<
buttons pressed.)
—
low
•
Sound
is interrupted during
PLAY. Or time counter
display stops progressing.
—
low
•
More
noise during 2-axis
device operation.
high high
The following is
a
simple adjustment method.
•
Incorrect Examples (DC
level is quite different from
the adjusted
waveform) (below)
VOLT/DIV : !00mV
high focus
gam
TIME/DIV
: 2mS
Simple Adjustment
Note: Since exact adjustment cannot
be
performed, remember
the
positions
of the controls before performing the adjustment.
If the positions after
the
simple
adjustment are only a little
different,
return the controls to the original position.
5. Connect the
oscilloscope
to BD BOARD, TP (TEO).
6. Adjust RVlOl
so that the waveform is as shown in
the picture below, (tracking gain
adjustment)
Procedure:
oscilloscope
(dC range)
60 board
TP (FEO)
TP (TEO)
TP (VC)
1. Keep the set flat.
If the set is not horizontal, this adjustment cannot
be
performed
due to the
gravity against
the 2 axis
device.
2. Insert the disc (YEDS-18) and press
>
PLAY button.
3.
Connect the oscilloscope
to
TP
(FEO) and TP
(VC).
4. Adjustment RV102
so
that
the
waveform is
as
shown
in the picture below, (focus gain adjustment)
VOLT/DIV : lOOmV
TIME/DIV
: 2mS
'
•
Incorrect Examples
(fundamental wave
appears)
low
tracking gain
high tracking gain
(higher
frequency
of the fundamental wave than above)
•Adjustment
Location :
MAIN
BOARD
(Component side)
-
8
- -
9
-