Sony HT-NT5, Service Manual

Page: 2 / 74

HT-NT5
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.
FLEXIBLE CIRCUIT BOARD REPAIRING
• Keep the temperature of soldering iron around 270 °C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
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)
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.
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 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.
This system incorporates Dolby* Digital
and the DTS** Digital Surround System.
*Manufactured under license from Dolby
Laboratories.
Dolby and the double-D symbol are
trademarks of Dolby Laboratories.
**For DTS patents, see http://
patents.dts.com. Manufactured under
license from DTS Licensing Limited. DTS,
DTS-HD, the Symbol, & DTS and the
Symbol together are registered
trademarks of DTS, Inc. © DTS, Inc. All
Rights Reserved.
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-Definition
Multimedia Interface (HDMI™) technology.
The terms HDMI and HDMI High-Definition
Multimedia Interface, and the HDMI Logo
are trademarks or registered trademarks of
HDMI Licensing LLC in the United States
and other countries.
The N Mark is a trademark or registered
trademark of NFC Forum, Inc. in the United
States and in other countries.
Android and Google Play are trademarks of
Google Inc.
Google Cast and the Google Cast badge
are trademarks of Google Inc.
“Xperia” is a trademark of Sony Mobile
Communications AB.
Apple, the Apple logo, iPhone, iPod, iPod
touch, and Retina are trademarks of Apple
Inc., registered in the U.S. and other
countries. App Store is a service mark of
Apple Inc.
“Made for iPod,” and “Made for iPhone”
mean that an electronic accessory has
been designed to connect specifically to
iPod or iPhone, respectively, and has been
certified by the developer to meet Apple
performance standards. Apple is not
responsible for the operation of this device
or its compliance with safety and
regulatory standards. Please note that the
use of this accessory with iPod or iPhone
may affect wireless performance.
“BRAVIA” logo is a trademark of Sony
Corporation.
“Cle” 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.
Opera® Devices SDK from Opera Software
ASA. Copyright 1995-2015 Opera Software
ASA. All rights reserved.
Wi-Fi®, Wi-Fi Protected Access®, Wi-Fi
Alliance® and Wi-Fi CERTIFIED Miracast®
are registered trademarks of Wi-Fi Alliance.
Wi-Fi CERTIFIED™, WPA™, WPA2™, Wi-Fi
Protected Setup™ and Miracast™ are
trademarks of Wi-Fi Alliance.
Copyrights and Trademarks
LDAC™ and LDAC logo are trademarks of
Sony Corporation.
LDAC is an audio coding technology
developed by Sony that enables the
transmission of High-Resolution (Hi-Res)
Audio content, even over a Bluetooth
connection. Unlike other Bluetooth
compatible coding technologies such as
SBC, it operates without any down-
conversion of the Hi-Res Audio content*,
and allows approximately three times
more data** than those other technologies
to be transmitted over a Bluetooth wireless
network with unprecedented sound
quality, by means of efficient coding and
optimized packetization.
*excluding DSD format contents
**in comparison with SBC (Subband
Coding) when the bitrate of 990 kbps
(96/48 kHz) or 909 kbps (88.2/44.1 kHz) is
selected
This product contains software that is
subject to the GNU General Public License
(“GPL”) or GNU Lesser General Public
License (“LGPL”). These establish that
customers have the right to acquire,
modify, and redistribute the source code of
said software in accordance with the terms
of the GPL or the LGPL.
For details of the GPL, LGPL and other
software licenses, please refer to [Software
License Information] in [System Settings] of
the [Setup] menu on the product.
The source code for the software used in
this product is subject to the GPL and LGPL,
and is available on the Web. To download,
please access the following:
URL:
http://oss.sony.net/Products/Linux
Please note that Sony cannot answer or
respond to any inquiries regarding the
content of this source code.
“DSEE HX” is a trademark of Sony
Corporation.
DLNA™, the DLNA Logo and DLNA
CERTIFIED™ are trademarks, service marks,
or certification marks of the Digital Living
Network Alliance.
“TRILUMINOS” and “TRILUMINOS” logo are
a registered trademark of Sony
Corporation.
This product incorporates Spotify software
which is subject to 3rd party licenses found
here*:
https://developer.spotify.com/esdk-
third-party-licenses/
Spotify and Spotify logos are trademarks of
the Spotify Group.*
*Depending on the country and region,
this function may not be available.
All other trademarks are trademarks of
their respective owners.
Ver. 1.2