HCD-DX10/RG4SR/RG20/RG30T
Tuner section
SAFETY CHECK-OUT
FM stereo, FM/AM superheterodyne tuner
After correcting the original service problem, perform the
FM tuner section
following safety checks before releasing the set to the customer:
Tuning range87.5 � 108.0 MHz
AntennaFM lead antennaCheck the antenna terminals,Ometallized metal trim,� knobs, screws,
Antenna terminals75 ohm unbalancedand all other exposed metal parts for AC leakage. Check leakage as
Intermediate frequency10.7 MHz
described below.
AM tuner section
Tuning rangeLEAKAGE
Pan-American models: � 1,710 kHz (with the530
interval set at 10 kHz)
531 � 1,710 kHz (with the The AC leakage from any exposed metal part to earth ground and
interval set at 9 kHz)
European and Middle Eastern models:from all exposed metal parts to any exposed metal part having a
531 � 1,602 kHz (with thereturn to chassis, must not exceed 0.5 mA (500 microamperes).
interval set at 9 kHz)
Leakage current can be measured by any one of three methods.Other models:�531 1,602 kHz (with the
interval set at 9 kHz)
530 � 1,710 kHz (with the
1. A commercial leakage tester, such as the Simpson 229 or RCAinterval set at 10 kHz)
AntennaAM loop antennaWT-540A. Follow the manufOacturers instructions to use these
Antenna terminalsExternal antenna terminal
instruments.
Intermediate frequency450 kHz
2. A battery-operated AC milliammeter. The Data Precision 245
General
digital multimeter is suitable for this job.
Power requirements
North American models: 120 V AC, 60 Hz
European models:230 V AC, 50/60 Hz
3. Measuring the voltage drop across a resistor by means of a
Australian models:� 240 V AC,230
50/60 HzVOM or battery-operated AC voltmeterOlimit� indica. The tion
Mexican models:120 V AC, 50/60 Hz
is 0.75 V, so analog meters must have an accurate low-voltage
Other models:120 V, 220 V or
230 � 240 V AC,scale. The Simpson 250 and Sanwa SH-63Trd are examples of
50/60 Hz
a passive VOM that is suitable. Nearly all battery operated
Adjustable with voltage
selectordigital multimeters that have a 2V AC range are suitable. (See
Fig. A)
Power consumption
USA models:
HCD-RG4SR:160 watts
HCD-RG30T:115 watts
HCD-RG20:95 wattsTo Exposed Metal
Canadian models:Parts on Set
HCD-RG30T:115 watts
HCD-RG20:95 watts
European model:
HCD-RG20:85 watts
1.0 watts (at the Power
Saving Mode)
Other model:AC
HCD-DX10:85 wattsVoltmeter
0.15 ?F1.5 k&
(0.75 V)
Dimensions (w/h/d)Approx. 280 � 325 � 421 mm
Mass
North American models:
HCD-RG4SR:Approx. 8.7 kg
HCD-RG30T:Approx. 8.2 kg
HCD-RG20:Approx. 7.8 kgEarth Ground
European model:
HCD-RG20:Approx. 8.1 kg
Fig. A. Using an AC voltmeter to check AC leakage.
Other model:
HCD-DX10:Approx. 8.2 kg
Design and specifications are subject to change
without notice.
SAFETY-RELATED COMPONENT WARNING!!ATTENTION AU COMPOSANT AYANT RAPPORT
� LA S?CURIT?!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHLES COMPOSANTS IDENTIF?S PAR UNE MARQUE 0 SUR LES
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSDIAGRAMMES SCH?MATIQUES ET LA LISTE DES PIéCES SONT
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECRITIQUES POUR LA S?CURIT? DE FONCTIONNEMENT. NE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERSREMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSDONT LES NUM?ROS SONT DONN?S DANS CE MANUEL OU
PUBLISHED BY SONY.DANS LES SUPP?MENTS PUBLI?S PAR SONY.
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