Sharp CD-E600 Instrukcja serwisowa - Strona 2

Przeglądaj online lub pobierz pdf Instrukcja serwisowa dla System stereo Sharp CD-E600. Sharp CD-E600 44 stron.

CD-E600/CD-E66

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 1.5 kohm, 10 watt resistor

paralleled by a 0.15 µF 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.

TO EXPOSED

METAL PARTS

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 –

VTVM

AC SCALE

1.5 kohms

10 W

0.15 µF

TEST PROBE

CONNECT TO

KNOWN EARTH

GROUND