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Cd Player Adjustments - Sanyo MCD-S660F Service Manual

Cd portable stereo radio cassette recorder
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CD
PLAYER ADJUSTMENTS
.... -
b.
PREPARATIONS
(a)
Measuring
instruments,
tools
and
filter
-
#
(1) Test disc.:
YEDS18(SONY)or
etc.
(2) oscilloscope:
SS5711
(l OMHzor
dual-phenomenon)
or Memory
scope
: DSS6521
(Storagescope)
(3)
Screwdrivers
(non-metallic)
for adjustments
(4) Low Pass Filter (L. P. F.)
(5) Resistor,
Carbon
2.2 Kohm,
l/4W
.—
c.
PARTS
LOCATION
r
)
L-
0
I-J 1:1
l_l
l_l
CD MAIN
P.C.B
e
'
1:"
:1%c~33~:
o";
'Oscillosco
EYE PATTERN
Adjustment
Measuring
Short-circuit
Input
Item
instrument
location
onnection
(a)
Tracking
Oscilloscope
balance
L.P.F.
lJl::w
-
(b) Checking
the "eye"
Oscilloscope
pattern
I
1
I
-~
TRACKING
BALANCE
output
djustment
connection
location
Adjustment
value
TP 101 :TE
SVR101
Waveform
symmetry
TP102:VC
A=B
l. EJVp-p
ICIO1 (
pin 72)
Check
be sure that the "eye"
: RF
pattern
is at
the
center
of the
TP 102 :VC
waveform
and
that
the
dia-
mond shape is clearly defined
,.. .
-7-

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