Sharp MD-X8 Service Manual download pdf (Page 2)

MD-X8

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SPECIFICATIONS

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER

TO THE OPERATION MANUAL.

Specifications for this model are subject to change without

prior notice.

IMPORTANT SERVICE NOTES

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 paralleled

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.

TO EXPOSED

METAL PARTS

CONNECT TO

KNOWN EARTH

GROUND

TEST PROBE

0.15 µ F

1.5k ohms

10W

VTVM

AC SCALE

(General)

Power source: AC 120 V, 60 Hz

Power consumption: 135 W

Output power: 40 watts minimum RMS per

channel into 6 ohms from 60 Hz to

20 kHz,10 % total harmonic distortion

Input terminals: AUX 1 (Analog); 500 mV/47 kohms

AUX 2 (Analog); 500 mV/47 kohms

AUX DIGITAL 1 (Optical)

AUX DIGITAL 2 (Coaxial)

PHONO; 3 mV/47 kohms

Output terminals: Headphones; 16- 50 ohms

(recommended; 32 ohms)

Speakers; 6 ohms

AUX (Analog); 2.0 V (1 kohm)

Dimensions: Width; 9-1/2" (240 mm)

Height; 11-7/16"(290 mm)

Depth; 12-1/2" (317 mm)

Weight: 18.1lbs. (8.2 kg)

Speaker section

Type: 2-way 6" (150 mm) woofer and 1" (25

mm) dome tweeter type

Maximum input power: 100 W

Rated input power: 50 W

Impedance: 6 ohms

Dimensions: Width; 7-13/16" (197 mm)

Height; 11-3/4"(297 mm)

Depth; 11-1/16"(281 mm)

Weight: 9.7lbs. (4.4 kg)/each

Main unit section

(MiniDisc recorder section)

Type: MiniDisc recorder

Signal readout: Non-contact, 3-beam semi-conductor

laser pick-up

Audio channels: Stereo 2 channels/monaural (long-play

mode) 1 channel

Frequency response: 20 - 20,000 Hz (+1/-3 dB)

Rotational speed: 400 - 900 rpm CLV, Approx.

Quantization: 16-bit linear

Filter: 8-times oversampling digital filter

Error correction: ACIRC (Advanced Cross Interleave

Reed-Solomon Code)

Coding: ATRAC (Adaptive TRansform Acoustic

Coding)

Recording method: Magnetic modulation overwrite method

D/A converter: 1-bit

Sampling frequency: 44.1 kHz

Wow and flutter: Unmeasurable

(less than 0.001% W. peak)

Signal/noise ratio: 95 dB (1 kHz)

Dynamic range: 90 dB (1 kHz)

(Compact disc player)

Type: 3 disc multi-play compact disc player

Signal readout: Non-contact, 3-beam semi-conductor

laser pickup

Rotational speed: 200 - 500 rpm CLV, Approx.

Error correction: CIRC (Cross Interleave Reed-Solomon

Code)

Quantization: 16-bit linear

D/A converter: 1-bit

Filter: 4-times oversampling digital filter

Frequency response: 20 - 20,000 Hz (+1/-3 dB)

Signal/noise ratio: 95 dB (1 kHz)

Dynamic range: 90 dB (1 kHz)

Wow and flutter: Unmeasurable

(less than 0.001% W. peak)

(Tuner section)

Frequency range: FM; 87.5 - 108 MHz

AM; 530 - 1,720 kHz

Sensitivity: FM; 2.5 µV (75 ohms, unbalanced)

AM; 650 µV/m

1 2 3 4 5 6 7 ... 107 108

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Sharp MD-X8 Service Manual Page 2

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