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".
CD PLAYER ADJUSTMENTS
b.
PREPARATIONS
WA"
(a) Measuring
instruments,
tools and filter
(I j
(2)
(3)
(4)
Test disc. : YEDS 18 ( SONY ) or etc.
Oscilloscope
: SS5711
(1O MHz or dual-phenomenon
)
or Memory scope : DSS6521 (Storagescope)
DC digital voltmeter
(Input impedance
1M ohm or more )
AC voltmeter
(- 80 dB, input impedance
(5) AF oscillator
(400 Hz, 300 mV RMS )
(6) Frequency
counter
(5 MHz ; or more )
and probe (10
: 1)
(7) Screwdrivers
( non-metallic
) for adjustments
(8) Low Pass Filter ( L.P.F.
)
(9) DC Power supply
:12 V, 1 A
1 M ohm or more)
(b) Component
locations
diagram
Work can be simplified
by removing
the printed circuit boards from the CD mechan
and placing then as shown in the illustration.
. Place the CD mechanism
on a flat and level su
to operate it.
POWER
SWITCH
'~
CN951-
. .
-.
.
c.
PARTS
LOCATION
Q ~+
.-..
P f.d
I
II
CN403
P
CN404
L
TP4
-M
'"
:__..
GND
TP2
Vc
TP5
2'
';
RF
TP 1
@lz#
SVR302
(
—
CN301
..
-5-
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