Sony SA-CT290 Руководство по эксплуатации - Страница 2
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HT-CT290/CT291
Copyrights and Trademarks
• This system incorporates Dolby* Digital.
* Manufactured under license from Dolby Laboratories.
Dolby, Dolby Audio, and the double-D symbol are trademarks of
Dolby Laboratories.
®
• The BLUETOOTH
word mark and logos are registered trademarks
owned by Bluetooth SIG, Inc. and any use of such marks by Sony
Corporation is under license. Other trademarks and trade names are
those of their respective owners.
• This system incorporates High-Defi nition Multimedia Interface
(HDMI™) technology. The terms HDMI and HDMI High-Defi nition
Multimedia Interface, and the HDMI Logo are trademarks or
registered trademarks of HDMI Licensing, LLC in the United States
and other countries.
• "BRAVIA" is a trademark of Sony Corporation.
• "PlayStation" is a registered trademark of Sony Computer
Entertainment Inc.
• MPEG Layer-3 audio coding technology and patents licensed
from Fraunhofer IIS and Thomson.
• Windows Media is either a registered trademark or trademark
of Microsoft Corporation in the United States and/or other
countries.
• This product is protected by certain intellectual property rights
of Microsoft Corporation. Use or distribution of such technology
outside of this product is prohibited without a license from
Microsoft or an authorized Microsoft subsidiary.
• "ClearAudio+" is a trademark of Sony Corporation.
• Other system and product names are generally trademarks or
registered trademarks of the manufacturers. ™ and ® marks are
not indicated in this document.
• Abbreviation
AUS
: Australian model
CND : Canadian model
E3
: 240 V AC area in E model
E12
: 220-240 V AC area in E model
EA
: Saudi Arabia model
LA9
: Latin-American model
RU
: Russian Model
SP
: Singapore model
TH
: Thai model
2
NOTES ON CHIP COMPONENT REPLACEMENT
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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 0.5 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 2 V AC range are suitable. (See
Fig. A)
To Exposed Metal
Parts on Set
0.15 μF
Fig. A. Using an AC voltmeter to check AC leakage.
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
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 FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
AC
1.5 kΩ
voltmeter
(0.75 V)
Earth Ground
WITH
SONY
PARTS