Sony avd s 50 service manual

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2 Super Audio CD/DVD system Laser Semiconductor laser(Super Audio CD/DVD: λ = 650 nm) (CD: λ = 780 nm) Emission duration: continuous Signal format system AVD-S50: PAL AVD-S50ES: NTSC Fr equency response (at 2 CH STEREO mode) DVD (PCM): 2 Hz to 22 kHz (±1.0 dB) CD: 2 Hz to 20 kHz (±1.0 dB) Signal-to-noise ratio More than 80 dB (VIDEO 1 (AUDIO) connectors only) Harmonic distortion Less than 0.03 % FM tuner section System PLL quartz-locked digital synthesizer system T uning range 87.5 -“ 108.0 MHz (100 kHz step) Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz AM tuner section System PLL quartz-locked digital synthesizer system T uning range AVD-S50ES: 530 -“ 1,710 kHz (with the interval set at 10 kHz) 531 -“ 1,710 kHz (with the interval set at 9 kHz) AVD-S50: 531 -“ 1,710 kHz (with the interval set at 9 kHz) Antenna Loop antenna Intermediate frequency 450 kHz V ideo section (AVD-S50ES) Inputs S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms Outputs S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms V ideo section (EURO AV) (AVD-S50) Input Video: 1 Vp-p 75 ohms Output Video: 1 Vp-p 75 ohms General Po wer requirements AVD-S50ES: 120 V AC, 60 Hz AVD-S50: 230 V AC, 50/60 Hz Po wer consumption 180 W 1.5 W (at the Power Saving Mode) Dimensions (approx.) 430 × 98 × 453 mm (17 × 3 7/8 × 17 7/8 inches) (w/h/d) incl. projecting parts Mass (approx.) 7.5 kg (16 lb. 9 oz.) Operating temperature 5 °C to 35 °C (41 °F to 95 °F) Operating humidity 5 % to 90 % Design and specifications are subject to change without notice. A VD-S50/S50ES SELF DIAGNOSIS FUNCTION

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3 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Fig. A. Using an AC voltmeter to check AC leakage. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST 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 microamperes). Leakage 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 manufacturers 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 limit 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 passive V OM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) A TTENTION AU COMPOSANT AYANT RAPPORT Ã- LA SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. A VD-S50/S50ES Notes on Chip Component Replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be dam- aged by heat. Flexible Circuit Board Repairing - Ke ep the temperature of the soldering iron around 270ËšC during repairing. - Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). - Be careful not to apply force on the conductor when soldering or unsoldering. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. 1.5 k -„¦ 0.15 µF AC voltmeter(0.75 V) To Exposed Metal Parts on Set Earth Ground US, Canadian model AEP, UK model