Sony HCD-NEZ3 Service Manual page 2

HCD-NEZ3/NEZ5
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CD player section
Laser Diode Properties Emission duration:
continuous
Laser Output: Less than
44.6 µW
(This output is the value
measurement at a distance
of 200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture)
20 Hz − 20 kHz
Frequency response
Tape deck section
Recording system 4-track 2-channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
87.5 − 108.0 MHz
Tuning range
Antenna FM lead antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
530 − 1,710 kHz
Pan-American model:
(with the tuning interval
set at 10 kHz)
531 − 1,710 kHz
(with the tuning interval
set at 9 kHz)
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
TE
L 13942296513
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
The following caution label is located inside the unit.
This appliance is classified
as a CLASS 1 LASER
CLASS 1 LASER PRODUCT
product.
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
This label is located on the
rear exterior.
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.
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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.
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European model:
Other models:
Antenna
Intermediate frequency
General
Power requirements
North American model:
Mexican model:
European model:
Australian model:
Korean model:
Chinese model:
Taiwanese model:
Argentine model
Saudi Arabian model:
Other models:
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531 − 1,602 kHz
Power consumption
(with the tuning interval
CMT-NEZ5
set at 9 kHz)
European model:
530 − 1,710 kHz
(with the tuning interval
set at 10 kHz)
Other models:
531 − 1,602 kHz
(with the tuning interval
CMT-NEZ3
set at 9 kHz)
North American model:
AM loop antenna, external
European model:
antenna terminal
450 kHz
Other models:
AC 120 V, 60 Hz
AC 120 V, 60 Hz Dimensions (w/h/d) (excl. speakers)
AC 230 V, 50/60 Hz
AC 230 − 240 V, 50/60 Hz
AC 220 V, 60 Hz
AC 220 V, 50/60 Hz
Mass (excl. speakers)
AC 120 V, 50/60 Hz
CMT-NEZ5:
AC 220 V, 50/60 Hz
CMT-NEZ3
AC 120 − 127, 220,
North American model:
230 − 240 V, 50/60 Hz
Other models:
AC 120, 220 or
230 − 240 V, 50/60 Hz
Design and specifications are subject to change
Adjustable with voltage
without notice.
selector
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.
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2. A battery-operated AC milliammeter. The Data Precision 245
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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 µ F
Fig. A. Using an AC voltmeter to check AC leakage.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
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LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
.
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
9 4 2 8
60 W
0.3 W (in Power Saving
Mode)
50 W
40 W
45 W
0.3 W (in Power Saving
Mode)
45 W
Approx. 164 × 235 ×
265 mm
Approx. 3.6 kg
Approx. 2.8 kg
Approx. 3.6 kg
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AC
1.5 k Ω
voltmeter
(0.75 V)
Earth Ground
m
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