Sharp XL-S10, Руководство по обслуживанию

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XL-S10
1 – 1
Audio XL-S10 Service Manual XLS10 Market E CHAPTER 1.
GENERAL DESCRIPTION
[1] IMPORTANT SERVICE NOTES (FOR
U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched or
that hardware is not lodged between the chassis and other metal
parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current in
the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as conduit or electrical
ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity
to measure the AC voltage drop across the resistor (See diagram).
* Connect the resistor connection to all exposed metal parts having a
return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.) or
more is excessive and indicates a potential shock hazard which must
be corrected before returning the audio product to the owner.
[2] SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µ F
1.5k ohms
10W
VTVM
AC SCALE
Specifications for this model are subject to change without prior notice.
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General
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Amplifier
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Tuner
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CD player
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Cassette deck
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Speaker
Power source AC 120 V, 60 Hz
Power
consumption 28 W
Dimensions Width: 6-5/16" (160 mm)
Height: 9-1/2" (242 mm)
Depth: 9-7/8" (250 mm)
Weight 5.1 lbs. (2.3 kg)
Output power 5 watts minimum RMS per channel into 4
ohms from 100 Hz to 15 kHz, 10% total har-
monic distortion
Output terminals Speakers: 4 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Subwoofer pre-out (audio signal):
500 mV/47 k ohms
Input terminals Video/Auxiliary (audio signal):
500 mV/47 k ohms
Frequency range FM: 87.5 - 108.0 MHz
AM: 530 - 1,720 kHz
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency
response 125 - 8,000 Hz (normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 4" (10 cm) full-range speaker (magnetically
shielded)
Maximum input
power 10 W
Rated input power 5 W
Impedance 4 ohms
Dimensions Width: 5-1/8" (130 mm)
Height: 9-7/16" (240 mm)
Depth: 6-5/16" (161 mm)
Weight 3.3 lbs. (1.5 kg)/each