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ii
.-..
CD PLAYER ADJUSTMENTS
b. PREPARATIONS
./
(a) Measuring
instruments,
tools and filter
(1)
(2)
(3)
(4)
Test disc. : YEDS 18 ( SONY ) or etc.
Oscilloscope
: SS5711
(1 O 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
"'"" - -.-A-
\
.'.
.
I
k
CN402
)
CN403
P
C N404
TP2
a
Vc
B
SVR302
TP 1
TE
TP4
Zzl
GND
TP5
@
TP3
'L'
tzz
RF
E==R=a
CN301
1
..
-5-
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