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  9. Sony CDP-S37 User manual

Sony CDP-S37 User manual

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SERVICE
MANUAL
SPECIFICATIONS
Compact
disc
player
|_cpp.s207_
|
CDP-S37
|
|
Frequency
response
|
5
Hz—
20
kHz
(+92
dB)
|
Signal
to
noise
ratio
|
More
than
95
dB
|
Dynamic
range
|
More
than
90
dB
‘Harmonic
distortion
|
Less
than
0.05%
(at
1
kHz)
-
‘Channel
separation
=
More
than
90
dB
i
Outputs
|
cpp.s207
|
CDP.S37_
t
T
1
|
LINE
OUT
(FIXED)
|
Output
level
2
V(at
50
kilohms)
|
:
(phono
jacks)
jboad
impedance
over
10
kilohms
|
i
:
ay
i
Output
level
|
|
HEADPHONES
mad
mW.
(stereo
phone
jack);
_
|
Load
impedance
|
|
32
ohms
General
|
cpps207
|
CDP.S37
|
Power
'
AEP
model:
i
|
requirements
(CDP-S207
/CDP-S37)
i
H
220V
AC,
50/60Hz
i
}
UK
model:
i
i
(CDP-S207)
!
i
240V
AC,
50/60Hz
:
US
model:
|
(CDP-S207)
|
120V
AC,
60Hz
i
{
Canadian
model:
|
i
|
(COP-S207
/CDP-S37)
|
120V
AC,
60Hz
E
model:
(CDP-S37)
110~120
of
220~240V
AC
adjustable,
50/60Hz
1
|
|
Power
|
10W
|
consumption
:
enue
cchudinge
225
x
65
x
230
mm
(wihid)
t
:
yA
1
|
projections)
(8°
x
4°
x
9%
inches)
|
Weight
(approx.)
2.0
kg
(4
Ib
7
02)
MICROFILM
Canadian
Model
AEP
Model
UK
Model
E
Model
CDP-S37
US
Model
Canadian
Model
AEP
Model
UK
Model
CDP-S207
New
KSS-211A
BU-5F
Model
Name
Using
Similar
Mechanism
CD
Transport
Mechanism
Type
Optical
Pick-Up
Block
Type
Supplied
accessories
Ing
cone,
}
H
|
CDP-S207
:
CDP.S37_
|
oS
————
oe
Audio
cord
|
I
:
i@
phono
plugs
— 2
phono
plugs)
|
!
Connecting
cord
|
1
u
i
Design
and
specifications
subject
to
change
without
notice.
SAFETY-RELATED
COMPONENT
WARNING!!
COMPONENTS
IDENTIFIED
BY
MARK
A
OR
DOTTED
LINE
WITH
MARK
A
ON
THE
SCHEMATIC
DIAGRAMS
AND
IN
THE
PARTS
LIST
ARE
CRITICAL
TO
SAFE
OPERATION.
REPLACE
THESE
COMPONENTS
WITH
SONY
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
SHOWN
IN
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUB-
LISHED
BY
SONY.
ATTENTION
AU
COMPOSANT
AYANT
RAPPORT
A
LA
SECURITE!
LES
COMPOSANTS
IDENTIFIES
PAR
UNE
MARQUE
/\
SUR
LES
DIAGRAMMES
SCHEMATIQUES
ET
LA
LISTE
DES
PIECES
SONT
CRITIQUES
POUR
LA
SECURITE
DE
FONCTIONNEMENT.
NE
REMPLACER
CES
COM-
POSANTS
QUE
PAR
DES
PIECES
SONY
DONT
LES
NUMEROS
SONT
DONNES
DANS
CE
MANUEL
OU
DANS
LES
SUPPLEMENTS
PUBLIES
PAR
SONY.
COMPACT
DISC
PLAYER
ONY.
CDP-S37/S207
TABLE
OF
COTENTS
Section
Title
SECTION1
GENERAL
1-1.
Location
of
Controls
.................00..
0.
cee
SECTION2
ELECTRICAL
ADJUSTMENTS
SECTION3
DIAGRAMS
3-1.
Semiconductor
Lead
Layouts
....................
3-2.
Waveforms
............
0.
cece
eee
ees
3-3.
Printed
Wiring
Board
3-4.
Schematic
Diagram
SAFETY
CHECK-OUT
After
correcting
the
original
service
problem,
perform
the
following
safety
check
before
releasing
the
set
to
the
customer:
Check
the
antenna
terminals,
metal
trim,
‘‘metallized”’
knobs,
screws,
and
all
other
exposed
metal
parts
for
AC
leakage.
Check
leakage
as
described
below.
LEAKAGE
TEST
The
AC
leakage
from
any
exposed
metal
part
to
earth
ground
and
from
all
exposed
metal
parts
to
any
exposed
metal
part
having
a
return
to
chassis,
must
not
exceed
0.5mA
(500
microampers).
Leakage
current
can
be
measured
by
any
one
of
three
methods.
1.
A
commercial
leakage
tester,
such
as
the
Simpson
229
or
RCA
WT-S40A.
Follow
the
manufacturers’
instructions
to
use
these
instru-
ments.
tu
A
battery-operated
AC
milliammeter.
The
Data
Precision
245
digital
multimeter
is
suitable
for
this
job.
ee
ee en
en
ee
en
er
ee
Page
Section
.
Title
3-5.
Circuit
Description
.....................000.0.
3
3-6.
IC
Block
Diagram
................0..0000
eee
4
SECTION4
EXPLODED
VIEWS
4-1.
Cabinet
Section
4-2.
CDM13
Section
6
4-3.
BU-5F
Section
........0.
0000.0
3.
Measuring
the
voltage
drop
across
a
resistor
by
means
of
a
VOM
or
battery-operated
AC
volt-
The
“‘limit”
indication
is
0.75
V,
so
analog
meters
must
have
an
accurate
low-
voltage
scale.
The
Simpson
250
and
Sanwa
SH-63Trd
are
examples
of
a
passive
VOM
that
is
suitable.
Nearly
all
battery
operated
digital
multimeters
that
have
a
2V
AC
range
are
suitable.
(See
Fig.
Aj
meter.
To
Exposed
Metal
Parts
on
Set
{
AC
voltmeter
(0.75
V)
cn
Earth
Ground
Fig.
A.
Using
an
AC
voltmeter
to
check
AC
leakage.
ne
SERVICING
NOTE
NOTES
ON
HANDLING
THE
OPTICAL
PICK-
UP
BLOCK
OR
BASE
UNIT
The
laser
diode
in
the
optical
pick-up
block
may
suffer
electrostatic
breakdown
because
of
the
poten-
tial
difference
generated
by
the
charged
electrostatic
load,
etc.
on
clothing
and
the
human
body.
During
repair,
pay
attention
to
electrostatic
break-
down
and
also
use
the
procedure
in
the
printed
matter
which
is
included
in
the
repair
parts.
The
flexible
board
is
easily
damaged
and
should
be
handled
with
care.
CAUTION
Use
of
controls
or
adjustments
or
performance
of
procedures
other
than
those
specified
herein
may
result
in
hazardous
radiation
exposure.
NOTES
ON
LASER
DIODE
EMISSION
CHECK
The
laser
beam
on
this
model
is
concentrated
so
as
to
be
focused
on
the
disc
reflective
surface
by
the
objective
lens
in
the
optical
pick-up
block.
Therefore,
when
check-
ing
the
laser
diode
emission,
observe
from
more
than
30
cm
away
from
the
objective
lens.
—2—
MODEL
IDENTIFICATION
(Specfication
Label)
CDP-S37
CDP-S207
SONY.
—
move.
no.
COMPACT
DISC
PLAYER
WML
US
model:
AC
120V
60Hz
10W
Canadian
model:
AC
120V
60Hz
10W
AEP
model:
AC
220V~50/60Hz
UK
model:
AC
240V~50/60Hz
E
model:
AC
110-120/220-240V~50/60Hz
10W
SECTION
1
GENERAL
1-1.
LOCATION
OF
CONTROLS
12
(Li)
[id
POWER
switch
Disc
compartment
PROGRAM
button
SHUFFLE
button
&
(open/close)
button
mil
(play/pause)
button
™
(stop)
button
Ke
Pt
(AMS
)
button
<4
>
(manual
search)
buttons
REPEAT
button
CONTINUE
button
TIME
button
Display
window
HEADPHONES
jack
(only
for
S37)
PHONE
LEVEL
(headphone
Level)
control
(only
for
S37)
Bl
oi
Bi wl
NE}
BSE
aw@ag
I
ey
ed
SECTION
2
ELECTRICAL
ADJUSTMENTS
Perform
adjustments
is
the
order
given.
Use
YEDS-18
(Part
No:
3-702-101-01)
disc
unless
other-
wise
indicated.
Use
the
oscilloscpe
with
more
than
10
MOQ
impedance.
RF
PLL
Frequency
Adjustment/Lock
Frequency
Check
Procedure:
frequency
counter
main
board
TP
(PCK)
TP
(AG)
<r
D
>+
o_O
-
1.
Connect
test
point
TP
(ASY)
to
ground
with
lead
wire.
2.
Turn
POWER
switch
on.
3.
Connect
the
frequency
counter
to
test
point
TP
(PCK)
and
TP
(AG).
4.
Adjust
RV4
so
that
the
reading
on
the
frequency
counter
is
4.3218MHz+30kHz....
(RF
PLL
frequency
adjust-
ment).
5.
Remove
lead
wire
connecting
TP
(ASY)
to
ground.
6.
Put
disc
(YEDS-18)
in
and
press
>
button.
7.
Confirm
that
the
reading
on
frequency
counter
is
4,3218MHz....
(Lock
frequency
check).
E-F
Balance
Adjustment
This
adjustment
should
be
made
when
replacing
TOP
(T-
type
Optical
Pick-up).
Procedure:
,
oscilloscope
(OC
range)
main
board
C)
TP
(TEO)
Om———-©
+
TP
(AG)
ee
he
Connect
test
point
TP
(ADJ)
and
test
point
TP
(TEI)
to
ground
with
lead
wire.
2.
Connect
oscilloscope
to
test
point
TP
(TEO)
and
TP
(AG).
3.
Turn
POWER
switch
on.
4.
Put
disc
(YEDS-18)
in
and
press
>
button.
5.
Adjust
RV1
so
that
the
traverse
waveform
is
symmetrical
above
and
belew.
6.
After
adjustment,
remove
the
lead
wire
connected
in
step5.
fon
S
Easy
to
see
sweep
time
is
lodg.
A
A
ov
>
ov
B B
A=B A=B
(Within
5%}
(Within
5%)
Focus
Bias
Adjustment
This
adjustment
should
be
made
when
replacing
TOP
(Ttype
Optical
Pick-up).
Procedure:
oscilloscope
(DC
range)
main
board
ae
oO)
TP
(RF)
O«———O
+
TP
(RFG)9«—o
=
EN
Connect
oscilloscope
to
test
point
TP
(RF)
and
TP
(RFG).
Turn
POWER
switch
on.
Put
disc
(YEDS-18)
in
and
press
>
button.
Adjust
RV102
for
an
optimum
waveform
eye
pattern
or
so
that
the
peak
is
maximum.
Optimum
eye
pattern
means
that
shape
“©”
can
be
clearly
distinguished
at
the
center
of
the
waveform.
RF
signal
waveform
S/
YY}
WAAAY
Wi
YY)
\X
WW)
AAA
Ce
NY
A=1.3+0.3
(Vp-p)
Adjustment
Location:
main
board
RF
PLL
FREQUENCY
ADJ/
LOCK
FREQUENCY
CHECK
—_—_—_—__—_.
PCK,
ASY,
RV4,
AG
j
i
/
|
:
ADJ,
AG,
TEI,
TEO,
RVI
Ss
E-F
BALANCE
ADJ
FOCUS
BIAS
ADJ
AG,
RV2,
FEI,
FEO
\
\
IC3
2
REFERENCE
Focus/Tracking
Gain
Adjustments
A
frequency
responce
analyzer
is
necessary
in
order
to
perform
this
adjustment
exactly.
However,
this
gain
has
a
margin,
so
even
if
it
is
slightly
off,
there
is
no
problem.
Therefore,
do
not
perform
this
adjust-
ment.
Focus/tracking
gain
determines
the
pick-up
follow
up
(ver-
tical
and
horizontal)
relative
to
mechanical
noise
and
shock
when
the
2-axis
device
operate.
However,
as
these
reciprocate,
the
adjustment
is
at
the
point
where
both
are
satisfied.
@
When
gain
is
raised,
the
noise
when
the
2-axis
device
oper-
ates
increases.
@When
gain
is
lowered,
mechanical
shock
and
skipping
occurs
more
easily.
@
When
gain
adjustment
is
off,
the
symptoms
below
appear.
symptoms
Tracking
@
The
time
until
music
starts
becomes
longer
fori
~>
or
automatic
selection.
(Kid,
DDI
buttons
pressed.)(Normal-
ly
takes
about
1
seconds.)
low
or
high
@Music
does
not
start
and
disc
continues
to
rotate
for
@—>>
or
automatic
selec-
tion.
(Kil,
DDI
buttons
pressed.)
@Disc
table
opens
shortly
after
>>.
low
or
high
@Sound
is
interrupted
during
PLAY
or
time
counter
dis-
play
stops
progressing.
@More
noise
during
2-axis
device
operation.
The
following
is
a
simple
adjustment
method.
—Primary
Adjustment—
Note:
Since
exact
adjustment
cannot
be
performed,
remem-
ber
the
positions
of
the
controls
before
performing
the
adjustment.
If
the
position
after
the
primary
adjust-
ment
are
only
a
little
different,
return
the
controls
to
the
original
position.
Procedure:
oscilloscope
(DC
range)
main
board
C)
TP
(FEO)
So
+
t
_
TP
(TEO)
Omm-
-7
|
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:
Fifth
Selection)
and
press
>
but-
ton.
3.
Connect
oscilloscope
to
main
board
TP
(FEO).
4.
Adjust
RV3
so
that
the
waveform
is
as
shown
is
the
figure
below.
(focus
gain
adjustment)
5.
Connect
oscilloscope
to
main
board
TP
(TEO).
6.
Adjust
RV5
so
that
the
waveform
is
as
shown
is
the
figure
below.
(tracking
gain
adjustment)
VOLT
/DIV
TIME
/DIV
ov
e@
Incorrent
Examples
(DC
level
changes
more
than
on
adjust-
ed
waveform)
low
focus
gain
OV
high
focus
gain
TIME
/DIV
:
75m
ov
VOLT/DIV
:
TIME
/DIV
:
2mS
:
100mV
:
2msS
100mV
:
100mv
250mV
VOLT/DIV
:
100mV
2ms
100mV
v
TIME
/DIV
ov
e
Incorrect
Examples
(fundamental
wave
appears)
low
tracking
gain
TIME
/DIV
ov
high
tracking
gain
higher
fundamental
wave
than
for
low
gain)
ov
Adjustment
Location
:
main
board
TRACKING
GAIN
ADJ
RV5,
TEO
VOLT/DIV
:
VOLT
/DIV
:
VOLT/DIV
:
TIME/DIV
:
SECTION
3
DIAGRAM
3-1.
SEMICONDUTOR
LEAD
LAYOUTS
1v
:
2ms
2SK381-C
RD6.8FS-B1
1V
:
2ms
saincge
K
1V
2ms
10E2
i
athoge
a
\
anode
ot
FOCUS
GAIN
FEO
ADJ
ot
be
)
vice.
-
but-
s
the
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