Sony LBT-A199 - Page 5

Compact
tise:
mayer
SAFETY
CHECK-OUT
(US
Model)
Laser Semiconductor laser
Wavelength 780—790nm
Frequency
response
2Hz
to
20kHz+1dB
After
correcting
the
original
service
problem,
Signal-to-noise
ratio
More
than
93dB
perform
the
following
safety
check
before
releasing
Dynamic range More than 90dB the set to the customer:
ee ‘ x
Harmonic
distortion
Less
than
0.01%
(IkHz)
Check
the
antenna
terminals,
metal
trim,
‘“‘metallized”
Channel separation More than 90dB (1kHz)
knobs, screws, and all other exposed metal parts for
General AC leakage. Check leakage as described below.
Power requirements 120V AC, 60Hz
Power consumption 45W LEAKAGE TEST
Mass Approx. 9.9kg (20 Ib 14 oz)
Dimensions
Approx.
355
x
395
x
405mm
The
AC
leakage
from
any
exposed
metal
part
to
(14X155/, X 16 inches)
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers). Leakage
(w/h/d, including projections)
Supplied accessories
Remote commander RM-S221 (1) current can be measured by any one of three
Batteries Sony SUM-3 (NS) (2) methods.
ENE ie anterae () 1. A commercial leakage tester, such as the
AM
loop
antenna
1)
Simpson
229
or
RCA
WT-540A.
Follow
the
manufacturers’ instructions to use these instru-
ments.
Design and specifications are subject to change without notice.
i)
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 volt- |
meter. 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 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
voltmeter
| (0.75 V}
Dolby noise reduction manufactured under license from Dolby Labora-
tories
Licensing
Corporation.
=
Earth
Ground
"DOLBY" and the double-D symbol 9 are trademarks of Dolby Labora-
tories
Licensing
Corporation.
Fig.
A.
Using
an
AC
voltmeter
to
check
AC
leakage.
SAFETY-RELATED COMPONENT WARNING!! ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED LINE WITH
MARK
/\
ON
THE
SCHEMATIC
DIAGRAMS
AND
IN
THE
PARTS
LIST
LES
COMPOSANTS
IDENTIFIES
PAR
UNE
MARQUE
/\
SUR
LES
DIA-
ARE
CRITICAL
TO
SAFE
OPERATION.
REPLACE
THESE
COMPONENTS
GRAMMES
SCHEMATIQUES
ET
LA
LISTE
DES
PIECES
SONT
CRI-
WITH
SONY
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
SHOWN
IN
TIQUES
POUR
LA
SECURITE
DE
FONCTIONNEMENT.
NE
REMPLACER
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUBLISHED
BY
SONY.
CES
COMPOSANTS
QUE
PAR
DES
PIECES
SONY
DONT
LES
NUMEROS
SONT DONNES DANS CE MANUEL OU DANS LES SUPPLEMENTS
PUBLIES PAR SONY.