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SECTION 1
GENERAL
SAFETY
CHECK-OUT
3
Identifying the Parts
Fal ale R@rol niice) i<j
After
correcting
the
original
service
problem,
perform the following safety check before releasing
Mis'set to the customer:
;
Remote Commander RM-S702
Check the antenna terminals, metal trim, '"'metallized"'
(Amplifier control section
knobs, screws, and all other exposed metal parts for
Input selectors: Select an input source of.
AC leakage.
Check leakage as described below.
the amplifier.
ATT. +/- buttons: Control the
volume of amplifier.
LEAKAGE
TEST
(2]Tuner//CD player control section
t~<4/mb: Locates a desired section.
not
exceed
0.5mA
(500
microampers).
Leakage
tuner only)
SHIFT: Select the preset memory page
current
can
be
measured
by
any
one
of
three
A, Bor C, (for the tuner only)
methods.
D.SKIP: Move to the disd tray next to the
current one. (for the CD player only)
1.
A
commercial
leakage
tester,
such
as
the
Simpson 229 or RCA WT-540A.
Follow the
aoe control section
manufacturers' instructions to use these instru-
</>: Play
ments.
</>:
Fast winding
m: Stop
2.
A battery-operated AC milliammeter.
The Data
Pea
Precision 245 digital multimeter is suitable for
- Sips
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
RM-S702
multimeters
that
have
a 2V
AC
range
are
suitable.
(See Fig. A)
To Exposed Metal
Parts on Set
AC
0.15 uF
ae
voltmeter
(0.75 V)
—=_—-
Earth Ground
Using an AC voltmeter to check AC leakage.
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