Sony GTK-XB72 - Advanced Features and Apps

GTK-XB72
3
Sony CONFIDENTIAL
For Authorized Servicer
On Copyrights
t Android, Google Play and other related marks and logos are trademarks of Google LLC.
t The Android robot is reproduced or modied from work created and shared by Google and used
according to terms described in the Creative Commons 3.0 Attribution License.
t MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
t Windows Media is either a registered trademark or trademark of Microsoft Corporation in the United
States and/or other countries.
t 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.
t The BLUETOOTH® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc.
and any use of such marks by Sony Corporation is under license.
t The N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other
countries.
t Apple, the Apple logo, iPhone, iPod and iPod touch are trademarks of Apple Inc., registered in the U.S.
and other countries.
App Store is a service mark of Apple Inc., registered in the U.S. and other countries.
t Use of the Made for Apple badge means that an accessory has been designed to connect specically
to the Apple product(s) identied in the badge, and has been certied 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.
t LDAC™ and LDAC logo are trademarks of Sony Corporation.
t ™ and ® marks are omitted in the documents.
t Other trademarks and trade names are those of their respective owners.
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 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 re-
turn to chassis, must not exceed 0.5 mA (500 microamperes.). Leak-
age 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 kΩ0.15 μF
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.
SYSSET
2019/01/1806:06:34(GMT+09:00)
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