Sony ta e 9000es av service manual

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Ð 3 Ð SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, ÒmetallizedÓ knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth Ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers). Leak- age current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturersÕ instructions to use these instruments. 2. 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 voltmeter. The ÒlimitÓ 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 pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 0.15 µF To Exposed Metal Parts on Set 1.5k W AC voltmeter (0.75V) Earth Ground PARTS No.- 4-211-440-1¹ 4-211-440-2¹ MODEL US, CND model AEP, UK, E, AUS, CH model MODEL IDENTIFICATION Ñ BACK PANEL Ñ ¥ Abbreviation CND : Canadian model AUS : Australian model CH : Chinese model Parts No. CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the equipment manufacturer. Discard used batteries according to manufactureÕs instructions. ADVARSEL! Lithiumbatteri - Eksplosionsfare ved fejlagtig hŒndtering. Udskiftning mŒ kun ske med batteri af samme fabrikat og type. LevŽr det brugte batteri tilbage til leverand¿ren. ADVARSEL Eksplosjonsfare ved feilakting skifte av batteri. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier katterier kasseres i henhold til fabrikantens VARNIG Explosionsfara vid felaktigt batteribyte. AnvŠnd samma batterityp eller en likvŠrdig typ som rekommenderas av apparattillverkaren. Kassera anvŠnt batteri enligt gŠllande fšreakrifter. VAROITUS Parist voi rŠjŠhtŠŠ, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. HŠvitŠ kŠytetty paristo valmistajan ohjeiden mukaisesti.