Sony CDP-307ESD - Page 16

GDP-307ESD/950
CDP-307ESD/95G
The
following
is a
simple
adjustment
method.
-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
oscilloscope
to
main
board
TP(TEO).
6. Adjust
RV102
so
that
the
waveform
is
as shown in
the
figure
below,
(tracking
gain
adjustment)
VOLT/DIV
:
IV
TIME/DIV
:
2mS
Procedure
:
main
board
TP(FE0)O
oscilloscope
(DC
range)
o
Of
TP(TEO)
0-
*"
•
1C BLOCK
DIAGRAMS
IC10I
CXA1081 S
1C 204
CXA1182S
RF©(3>
-ov
©Incorrect
Examples
(fundamental
wave
appears)
low
tracking
gain
m
1. Keep
the
set
horizontal.
/
If
the
set
is not
horizontal,
this
adjustment
cannot
be
\ performed
due
to
the
gravity
against
the
2
axis
device.
2. Insert
disc
(YEDS-18)
playback
the
6th
selection.
3. Connect
oscilloscope
to
main
board
TP(FEO).
4. Adjust
RV103
so
that
the
waveform
is
as
shown
in
the
figure
below,
(focus
gain
adjustment)
VOLT/DIV
:
lOOmV
TIME/DIV
:
2mS
VOLT/DIV
:
IV
TIME/DIV
:
2mS
OV
high
tracking
gain
(higher
fundamental
wave
than
for
low
gain)
VOLT/DIV
:
IV
TIME/DIV
:
2mS
OV
• Incorrent
Examples
(DC level
changes
more
than
on
adjusted
waveform)
Adjustment
Location
:
main
board
low
focus
VOLT/DIV
:
lOOmV
TIME/DIV
:
2mS
—
250mV
1?
L
DATA
REGISTER input
shift register
AD0RESS
DECODER
OUTPUT
DECODER
A
III
—
T
i
1___
IC521
TDA1541
-N5
1C
520
CXDI088Q
l-CH
3»
2
BIT ACTIVE DEVICE
TIMING
8
CONTROL
ADORES
POINTER
(OBIT
PASSIVE
DEVICE
R-CH
INPUT LATCH
1
1
BIT
S
CH
1WITCH
~T
<
1
BIT
CH
SWITCH
0
R-CH
3
>2
B'T
ACTIVE
DEVICE h
-
SHIFT
REGISTER
high
focus
gain
—
OV
VOLT/DIV
:
1 OOm
V
TIME/DIV
:
2mS
iljP
frfVj
— 1 OOmV
"
75mV
TP(TEO)
RV102
TP(FEO)
RV103
1C 802
BX-1387
DPOL
LRCK
DATA
BCK
C2P0
Vdd
TEST2
R0MI
R0M2
0FST
OPOl
-
18
-
1C
c
MON
MOP
MOS
CNIf,
SENS
-
17
-