HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
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)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY-RELATED COMPONET 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 COM- POSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
CAUTION
Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.
European, CIS and Middle Eastern models:
531kHz - 1,602 kHz (with the interval
set at 9 kHz)
Australian and New Zealand models:
531kHz - 1,710 kHz (with the interval
set at 9 kHz)
530kHz - 1,710 kHz (with the interval
set at 10 kHz)
Other models: 531kHz - 1,602 kHz (with the interval
set at 9 kHz)
530kHz - 1,610 kHz (with the interval
set at 10 kHz)
Antenna (aerial) AM loop antenna (aerial)
Intermediate frequency 450 kHz
Video Section
Outputs VIDEO: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75ohms
P
B/CB, PR/CR: 0.7Vp-p
75 ohms
HDMI OUT: Type A (19 pin)
General
Power requirements
North American models: 120 V AC, 60 Hz
Other models: 220 V - 240 V AC, 50/60 Hz
Power consumption
HCD-HDX275/HDX277WC/HDX475/HDX675
On: 165 W
Standby: 0.3 W (at the
Power Saving mode)
HCD-HDX279W/HDX576WF
On: 125 W
Standby: 0.3 W (at the
Power Saving mode)
Output voltage (DIGITAL MEDIA PORT)
DC 5 V
Output current (DIGITAL MEDIA PORT)
700 mA
Dimensions (approx.) 430 mm × 85 mm × 420
mm (17 in × 3
3
/8 in ×
16
5
/8 in) (w/h/d) incl.
projecting parts
Mass (approx.) 5.2 kg (11 lb 8 oz)
Design and specifi cations are subject to change without notice.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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