Sony hcd rxd 3 service manual 1
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Ñ 2 Ñ After correcting the original service problem, perform the following 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 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 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 passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 µF 1.5 k ½ AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement ¥ Never reuse a disconnected chip component. ¥ Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ¥ Keep the temperature of soldering iron around 270ûC 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. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT Ë LA SƒCURITƒ! LES COMPOSANTS IDENTIFƒS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU DANS LES SUPPƒMENTS PUBLIƒS PAR SONY. General Power requirements 120V AC, 60Hz Power consumption 105W Dimensions (w/h/d) incl. projecting parts and controls Approx. 280 ´ 320 ´ 400 mm (11 1/8 ´ 12 5/8 ´ 15 3/4 in) Mass Approx. 9kg (19 lb 13 oz.) Supplied accessories: AM loop antenna (1) FM lead antenna (1) Remote (1) Plug adaptor (for Asian model) (1) Design and specifications are subject to change without notice.
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Ñ 3 Ñ TABLE OF CONTENTS 1. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááááá 4 2. DISASSEMBLY 2-1. CD Door ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááááááááááá 5 2-2. Front Panel ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááááááá 6 2-3. Main Board ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááááááá 6 2-4. Amplifier Board ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááá 7 2-5. CD Tray ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááááááááá 7 2-6. Decord Board ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááá 8 2-7. Base Unit ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááááááá 9 2-8. Cassette Lid ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááá 9 3. TEST MODE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááá 10 4. MECHANICAL ADJUSTMENTS ááááááááááááááááááááááááááááá 11 5. ELECTRICAL ADJUSTMENTS ááááááááááááááááááááááááááááááá 11 6. DIAGRAMS 6-1. Circuit Boards Location ááááááááááááááááááááááááááááááááááááááááááááááááááá\ 16 6-2. Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááá 17 Main Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááá 17 Tuner, CD Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááá 19 6-3. Printed Wiring Board Main Section ááááááááááááááááááááááááááááááá 23 6-4. Schematic Diagram Main (1/3) Section ááááááááááááááááááááááááá 25 6-5. Schematic Diagram Main (2/3) Section ááááááááááááááááááááááááá 27 6-6. Schematic Diagram Main (3/3) Section ááááááááááááááááááááááááá 29 6-7. Printed Wiring Board Front Panel Section ááááááááááááááááááááá 31 6-8. Schematic Diagram Front Panel Section áááááááááááááááááááááááá 33 6-9. Printed Wiring Board Amplifier Section áááááááááááááááááááááááá 35 6-10. Schematic Diagram Amplifier Section ááááááááááááááááááááááááááá 37 6-11. Printed Wiring Board CD Section áááááááááááááááááááááááááááááááááá 39 6-12. Schematic Diagram CD Section ááááááááááááááááááááááááááááááááááááá 41 6-13. IC Pin Function ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááá 43 6-14. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááá 45 7. EXPLODED VIEWS 7-1. Cabinet Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááá 49 7-2. Front Panel Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááá 50 7-3. CD Mechanism Deck Section-1 ááááááááááááááááááááááááááááááááááááááá 51 7-4. CD Mechanism Deck Section-2 ááááááááááááááááááááááááááááááááááááááá 52 7-5. Base Unit Section (KSM-213ECM) ááááááááááááááááááááááááááááááááá 53 8. ELECTRICAL PARTS LIST ááááááááááááááááááááááááááááááááááááááá 54