Sony str d 560 z service manual
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Extracted text from sony str d 560 z service manual (Ocr-read)
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Ð 2 Ð TABLE OF CONTENTS Specifications ........................................................................... 1 1.GENERAL Location and Function of Controls .................................... 4 2. DIAGRAMS 2-1. IC Pin Functions ......................................................... 6 2-2. Circuit Boards Locations .......................................... 10 2-3. Printed Wiring Boards Ð AMP Section Ð .................. 11 2-4. Schematic Diagram Ð AMP Section Ð ..................... 15 2-5. Schematic Diagram Ð Surround Section Ð ............... 19 2-6. Printed Wiring Boards Ð Surround Section Ð ........... 23 2-7. Schematic Diagram Ð Display Section (STR-D560Z/DE615) Ð .............. 26 2-8. Printed Wiring Boards Ð Display Section (STR-D560Z/DE615) Ð .............. 29 2-9. Printed Wiring Boards Ð Display Section (STR-D660Z/DE715) Ð .............. 33 2-10. Schematic Diagram Ð Display Section (STR-D660Z/DE715) Ð .............. 37 3. EXPLODED VIEWS 3-1. Front Panel Section ................................................... 44 3-2. Chassis Section ......................................................... 46 3-3. Back Panel Section ................................................... 47 4. ELECTRICAL PARTS LIST........................................ 48
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Ð 3 Ð 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The Ò limitÓ indication is 0.75V, 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.Earth Ground To Exposed Metal Parts on Set 1.5k 0.15µFAC voltmeter (0.75V) SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check 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 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 0.5mA (500 microampers). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCAWT-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. 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 IDENTIFIƒS 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 PIéCES SONY DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU DANS LES SUPPLƒMENTS PUBLIƒS PAR SONY.