CD PLAYER ADJUSTMENTS
d. PREPARATIONS
(a)
Measuring instruments, tools and%ilter
(1) Test disc.:
YEDS 18( SONY) ore[c.
(2) Oscilloscope: SS5711 (l OMHzorc#ual-phenornenon)
or Memory scope : DSS6521 (StoragEscope)
(3) Screwdrivers (non-metallic) for adjustments
(4)
Low Pass Filter (L. P. F.)
(5) Resistor, Carbon 2.2 K ohm, 1/4kV
e. PARTS LOCATION
n
❑
❑
Adjustment
Measuring
Service
Input
output
Adjustment
Item
instrument
IWode
connection
Adjustment value
connection
location
(a) Tracking
Oscilloscope
=s
TP 131 :TE
—
SVR12
Waveform symmetry
balance
L.P.F.
TP132:VC A =B 1.5 Vp-P
(b) Checking
Check
be sure that the “eye”
J1479 :
RF
_
the “eye”
Oscilloscope –
—
pa[lern
is at Ihe center of [he
TP132:VC
pattern
waveform and that the dia-
mond shape is clearly defined
-9-
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