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~~ ICF-C2W/C25W -
SAFETY
_ After
correcting
the
original
service
problem,
perform the. following safety check before releasing
- the set to the customer:
ee
'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. 2
exposed
metal part having a return to chassis, must a
Leakage
current
can
be
measured
by any
one
of three
not
exceed
0.5mA
(500 microampers).
methods.
1.
A
commercial
leakage tester,
Simpson 229
or RCA WT-S540A.
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.
such
as the
CHECK-OUT
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
2V
AC range
are
suitable. (See Fig, A)
To. Exposed Metal °
Partson Set
AC.
'voltmeter
(0.75 V)
Earth Ground
; \Fig. A.
Using an AC voltmeter to check AC leakage.
MODEL
—Model
IDENTIFICATION
Number
Label—
ICF-C2W
(US,Canadian model)
ICF-C2W
(AEP,WG
model)
|
ICF-C25W
(Canadian
model)
SONYe
MODEL
NO.
(,
FM/AM
2BANDS
[ss
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. AN SUPPLEMENTS PUB-
LISHED
BY 'SONY.
: Carved on
WG
model: West Germany
model
lower
cabinet
\ Model number
ladel
ICF-C2W
ICF-C25W
US,Canadian
model: AC:
120V
60Hz
6W
AEP,WG
model
: AC: 220V~50Hz
6W
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.
—2?—
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