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MODEL
IDENTIFICATION
—
Specification Labels
—
SAFETY CHECK-OUT
r
SONY®
MODEL
NO.
]
COMPACT
DISC
PLAYER
SERIAL
NO.
MADE
IN
JAPAN
V
US, Canadian model:
AC:
120V 60Hz
13W
AEP
model:
AC:
220V~50/60Hz
13W
E model:
AC:
110, 120, 220,
240V~50/60Hz
13W
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
0.5
mA
(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-540A.
Follow the
manufacturers'
instructions to
use these
instru-
ments.
2.
A
battery-operated
AC
milliammeter.
The Data
Precision
245
digital
multimeter
is
suitable
for
this
job.
3.
Measuring
the voltage
drop
across
a
resistor
by
means
of
a
VOM
or
battery-operated
AC
volt-
meter.
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
2
V
AC
range are
suitable.
(See
Fig.
A)
To Exposed
Metal
Parts
on
Set
0.1
5pF
AC
voltmeter
(0.7
SV)
Fig.
A.
Using an
AC
voltmeter
to
check
AC
leakage.
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