Sony STR-DH720, Руководство по обслуживанию

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STR-DH720/DH720HP
2
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉ-
MENTS PUBLIÉS PAR SONY.
FM tuner section
Tuning range 87.5 MHz – 108.0 MHz
Antenna (aerial) FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
Area Tuning scale
10 kHz step 9 kHz step
US, CND 530 kHz – 531 kHz –
1,710 kHz 1,710 kHz
ECE – 531 kHz –
1,602 kHz
Antenna (aerial) Loop antenna (aerial)
Intermediate frequency
450 kHz
Video section
Inputs/Outputs
Video: 1 Vp-p/75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
P
B
: 0.7 Vp-p, 75 ohms
P
R
: 0.7 Vp-p, 75 ohms
80 MHz HD Pass Through
iPhone/iPod section
DC 5V 1.0 A MAX
USB section
Supported bit rate* MP3 (MPEG 1 Audio Layer-3):
32 kbps - 320 kbps,VBR
WMA: 48 kbps - 192 kbps
AAC: 48 kbps - 320 kbps
*Compatibility with all encoding/writing software,
recording devices and recording media cannot be
guarantee.
Transfer speed Full-speed
Supported USB device
Mass Storage Class
Maximum current 500 mA
General
Power requirements
Area code Power requirements
US, CND 120 V AC, 60 Hz
ECE 230 V AC, 50/60 Hz
Power consumption 240 W
Power consumption (during standby mode)
0.3 W (When “Ctrl for HDMI” is set to “OFF”)
Dimensions (width/height/depth) (Approx.)
430 mm × 157.5 mm × 322 mm (17 in × 6 1/4 in ×
12 3/4 in) including projecting parts and controls
Mass (Approx.) 8.0 kg (17 lb 11 oz)
Design and speci fi cations are subject to change without notice.
Halogenated fl ame retardants are not used in the certain printed wiring
boards.
Supplied accessories
• Operating Instructions
• Quick Setup Guide
• GUI Menu List
• FM wire antenna (aerial) (1)
• AM loop antenna (aerial) (1)
• Remote commander (1)
– RM-AAU106 (US and CND models only)
– RM-AAU107 (Other models)
• R6 (size AA) batteries (2)
• Optimizer microphone (ECM-AC2) (1)
• Abbreviation
CND : Canadian model
ECE : Continental European, East European and Russian models
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 chas-
sis, 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 Simp-
son 250 and Sanwa SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital multimeters that have a
2 V AC range are suitable. (See Fig. A)
1.5 k
Ω
0.15
μ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.