Sony cdc r 304 service manual

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2 CDC-R304/X104EE/X204/X304/X444 If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-fixed resistor located at the side of optical pick-up block. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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. A TTENTION AU COMPOSANT AYANT RAPPORT À 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. SERVICE NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT T he laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens. 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. optical pick-up semi-fixed resistor - US, Canadian model - AEP, UK model CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation e xposure. This compact disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the e xterior. This label is located on the bottom of the chassis. CD player sectionSignal-to-noise ratio US, Canadian Model: 110 dB AEP, UK Model/CDC-X444: 120 dB Fr equency response 10 – 20,000 Hz Wo w and flutter Below measurable limit Power amplifier sectionOutputs Speaker outputs (sure seal connectors) Speaker impedance 4 – 8 ohms Maximum power output CDC-R304/X304/X444: 52 W × 4 (at 4 ohms) CDC-X104EE/X204: 45 W × 4 (at 4 ohms) GeneralOutputs Audio outputs terminal (rear/sub switchable) Power antenna relay control terminal Po wer amplifier control terminal Inputs Telephone ATT control terminal (AEP, UK Model/ CDC-X444) Antenna input terminal T one controls Low: ±10 dB at 60 Hz (HIP-HOP) Mid: ±10 dB at 1 kHz (HIP-HOP) High: ±10 dB at 10 kHz (HIP-HOP) Po wer requirements 12 V DC car battery (negative ground) Dimensions Approx. 178 × 50 × 176 mm (7 1/8 × 2 × 7 in.) (w/h/d) Mounting dimensions Approx. 182 × 53 × 161 mm (7 1/4 × 2 1/8 × 6 3/8 in.) (w/h/d) Mass Approx. 1.2 kg (2 lb. 10 oz.) Supplied accessories Parts for installation and connections (1 set) Front panel case (1) Card remote control RM-Z304 (CDC-X444) Design and specifications are subject to change without notice. TEST DISCS This set can playback CD-R and CD-ROM discs. The following test discs should be used to check the capability: CD-R test disc TCD-R082LMT (Part No. J-2502-063-1) CD-RW test disc TCD-W082L (Part No. J-2502-063-2)