Sony STR-D511 Service Manual page 3

87.5 — 108 MHz 531 — 1,602 kHz
50 dB quieting] ohms (mono)
Usable 11.2 dBf, 1 pV (IHF) Loop antenna:
sensitivity 75 ohms
Harmonic 0.3% (mono), 0.5% 0.5% (at 50 mV/m,
distortion (stereo) at 1.kHz
System
Preamplifier section: low-noise NF type equalizer amp
220—230V AC, 50/60Hz (for AEP model)
Power consumption
In standby condition: 5 W
Dimensions
including projecting parts and controls
Approx. 6.4 kg (14 lb 2 oz) (STR-D511)
AM loop antenna (1)
Tuner section
Antenna 75 ohms, External antenna
terminals terminal
38.3 dBf, 22.5 pV, 75
500 pV (at 1,000 kHz)
400 Hz)
Frequency 30 Hz — 15 kHz
response *}°dB
Tuner section: PLL quartz-locked digital synthesizer
Power amplifier section: pure complementary SEPP
240V AC, 50/60Hz (for UK model)
160 W (STR-D611)
AC outlet
Approx. 430 x 135 x 295 mm (w/h/d)
Mass
Accessories supplied
Remote Commander RM-U232 (1)
Fane secon
unbalanced
Sensitivity at | 18.3 dBf, 2.25 pV, 75
ohms (stereo)
Signal-to-noise} 70 dB (mono) 54 dB (at 50 mV/m)
ratio 66 dB (stereo)
Selectivity 60 GB at 400 kHz 30 dB at 9 kHz
General
system
Power requirements
240V AC, 50Hz (for Australian model)
135 W (STR-D511)
One switched (100 W Max.)
(17x5%, x 11 %/, inches)
Approx. 6.9 kg (15 Ib 4 0z) (STR-D611)
FM wire antenna (1)
Sony batteries SUM-3(NS) (2)
Design and specifications are subject to change without notice.
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 IN SUPPLEMENTS PUB-
LISHED BY SONY.
SAFETY CHECK-OUT (US Model)
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 0.5mA (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 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
voltmeter
as (0.75 V)
= Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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.