Sony mod rf 1 service manual

Page 1

MOD-EFL

SERVICE MANUAL us Model

Canadian Model
AEP Model

UK Model

E Model
Australian Model
Chinese Model
PX Model

SPECIFICATIONS
Inputs
AC-3 RF IN : 759
Outputs
COAXIAL DIGITAL OUT : 0.5 Vp-p, 7552
OPTICAL DIGITAL OUT : -
General
Power requimmems : US, Canadian, PX models: 120V, 60Hz
Other models: 220 - 230V, SOISOHZ
Power consumption : 6W
Dimensions (w/h/d) : Approx. 85 X 70 X 185 mm
(33/: X 27/3 X 73/3 inches)
Mass : Appurox. 780g
(1 lb, 11 oz.)
Supplied accessories : Digilal optical cable ( 1)

RF DEMODULATOR
S ONY;

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SAFETY CHECK-OUT

After correcting the original service problem, perform the following
safety checks 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

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 microamperes).
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
instruments.

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 voltmeter. 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)

7bEmasedMelal
PartsonSet

AC
\bllmeter

0-15uF= (075

gm

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SAFETY-RELATED COMPONENT WARNING"

COMPONENTS IDENTIFIED BY MARKAOR DO'ITED LINEWIT H
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
PUBLISHED BY SONY.

ATrEN'rION Au composmr AYANT RAPPORT
A LA sEeu RITEl

LEs COMPOSANTS IDENTIFES PAR UNE MAROUE A sun LEs
DIAGRAMMES SCHEMATIOUES Er LA LISTE DES PIECES SONT
camouss POUR LA sEcunrrE DE FONCTIONNEMENT. NE
REMPLACER CBS COMPOSANTS QUE PAR DES PIESEs SONY
DONT LEs NUMEROS s0N1' DONNEs DANs CE MANUEL ou
DANs LEs suPPEMENTs PuaLIEs PAR SONY.

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