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SA-HT740GCP Schematic ( PDF Datasheet ) - Panasonic

Teilenummer SA-HT740GCP
Beschreibung DVD Home Theater Sound System Service Manual
Hersteller Panasonic
Logo Panasonic Logo 




Gesamt 30 Seiten
SA-HT740GCP Datasheet, Funktion
ORDER NO.MD0605182C3
DVD Home Theater Sound System
SA-HT740GCP
Colour
(S).......................Silver Type
Specifications
lGeneral
Power Source:
Power consumption:
AC 110V-127V/ 220V-240V,
50/ 60Hz
155 W
Dimensions (W×H×D):
430×70×439.2 mm
Mass:
5 kg
lAmplifier section
RMS Output Power: Dolby Digital Mode
lTotal RMS Dolby Digital
mode Power:
1000 W
At 1kHz and total harmonic of 10%
lFront:
90 W/ Channel (4)
lCenter:
320 W/ Channel (4)
lSurround:
90 W/ Channel (4)
At 100Hz and total harmonic of 10%
lSubwoofer:
PMPO Output Power:
320 W/ Channel (4)
7500W
DIN Output Power: Dolby Digital Mode
lTotal DIN Dolby Digital
mode Power
740 W
At 1kHz and total harmonic of 1%
lFront:
65 W/ Channel (4)
lCenter:
240 W/ Channel (4)
lSurround:
65 W/ Channel (4)
At 100Hz and total harmonic of 1%
lSubwoofer:
240 W/ Channel (4)
DIN Output Power Stereo Mode
lTotal DIN Stereo mode
Power
360 W
At 1kHz and total harmonic of 1%
lFront:
60 W/ Channel (4)
At 100Hz and total harmonic of 1%
lSubwoofer:
240 W/ Channel (4)
lPreset Memory
FM 15 stations
AM/ MW 15 stations
lFM tuner section (FM)
Frequency Range:
87.5-108.0MHz
(50kHz step)
Sensitivity:
2.5µV (IHF)
S/N 26dB
2.2µV
Antenna Terminals:
75(unbalanced)
lAM tuner section (AM/MW)
Frequency Range:
522-1629kHz (9kHz step)
520-1630kHz (10kHz step)
AM Sensitivity S/N 20dB at
999kHz:
560µV/m
© 2006 Panasonic AVC Networks Singapore Pte.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.






SA-HT740GCP Datasheet, Funktion
SA-HT740GCP
1.2.1. Caution for fuse replacement
1.3. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
· No sound is heard when the power is turned on.
· Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)
sufficient to damage an ES device).
6

6 Page









SA-HT740GCP pdf, datenblatt
SA-HT740GCP
6 Accessories
Remote control
AM loop antenna
FM indoor antenna
Video Cable
Screws
AC cord
Speaker cable
Speaker label
Power plug
adaptor
12

12 Page





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