HAP-Z1ES
2
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.
Trademarks
ATRAC, ATRAC3, ATRAC3plus, ATRAC Advanced Lossless and their logos are trademarks of
Sony Corporation.
12 TONE ANALYSIS and its logo are trademarks of Sony Corporation.
“DSEE” is a registered trademark of Sony Corporation.
SensMe™ and the SensMe™ logo are trademarks or registered trademarks of Sony Mobile
Communications AB.
Microsoft, Windows, Windows Vista and Windows Media are either trademarks or registered
trademarks 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.
MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and
Thomson.
Mac, Mac OS and iTunes are trademarks of Apple Inc., registered in the U.S. and other
countries.
iPhone, iPod touch and iPad are trademarks of Apple Inc., registered in the U.S. and other
countries.
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is
used under license.
Google Play, Android, YouTube and their respective logos are trademarks of Google Inc.
Wi-Fi®, Wi-Fi Protected Access® and Wi-Fi Alliance® are registered marks of the Wi-Fi
Alliance.
Wi-Fi CERTIFIED™, WPA™, WPA2™ and Wi-Fi Protected Setup™ are marks of the Wi-Fi
Alliance.
Gracenote®, Gracenote logo and logotype, and the “Powered by Gracenote” logo are either a
registered trademark or a trademark of Gracenote, Inc. in the United States and/or other
countries.
T-1380009
All other trademarks and registered trademarks are trademarks or registered trademarks of
their respective holders. In this Help, TM and ® marks are not specified.
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.
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