![background image](http://html.mh-extra.com/html/sony/hcd-rxd7av/hcd-rxd7av_service-manual_420876002.webp)
2
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
60 - 13,000 Hz (±3 dB),
(DOLBY NR OFF)
using Sony TYPE I cassette
Wow and flutter
±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
75
Ω
unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
530 - 1,710 kHz
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency 450 kHz
General
Power requirements
120 V AC, 60 Hz
Power consumption
190 W
Dimensions (w/h/d)
Approx. 280
×
340
×
390 mm
(11
1
/
8
×
13
1
/
2
×
15
3
/
8
in.)
Mass:
Approx. 9.6 kg
(21 lb 2 oz.)
Supplied accessories:
AM loop antenna (1)
Remote (1)
FM lead antenna (1)
Speaker cords (2)
Center speaker pads (4)
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE WITH
MARK
!
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.
SAFETY CHECK-OUT
(US model only)
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 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
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)
Earth Ground
AC
voltmeter
(0.75V)
1.5k
Ω
0.15
µ
F
Fig. A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE
!
SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.