SONY STR-DE915 free download

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File name SONY STR-DE915, TA-V909, VE910 SERVICE MANUAL VER 1.2 2003.07 (9-920-940-13).pdf

STR-DE915/TA-V909/VE910 SERVICE MANUAL Ver 1.2 2003. 07 US Model Canadian Model STR-DE915 AEP Model UK Model E Model TA-VE910 Australian Model STR-DE915 Chinese Model TA-V909 Photo : STR-DE915 PX Model STR-DE915 Dolby Laboratories Licensing Corporation. "DOLBY" the double-D symbol a "AC-3" and "PRO LOGIC" are trademarks of Dolby Laboratories Licensing Corporation. SPECIFICATIONS -- Continued on next page -- STR-DE915 FM STEREO/FM-AM RECEIVER TA-V909/VE910 INTEGRATED AV AMPLIFIER 9-920-940-13 2003G16-1 © 2003.07 Sony Corporation Home Audio Company Published by Sony Engineering Corporation --2-- SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks 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. TABLE OF CONTENTS 1. 2. 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7. 2-8. 2-9. 2-10. 2-11. 2-12. 2-13. 2-14. 2-15. 2-16. GENERAL ······································································ 4 DIAGRAMS Circuit Boards Location ····················································· 6 Block Diagram -- Main Section -- ··································· 7 Block Diagram -- Video In/Out Section -- ····················· 11 Block Diagram --Power Section -- ································ 13 Schematic Diagram -- Video Section -- ························· 16 Printed Wiring Board -- Video Section -- ······················ 19 Printed Wiring Board -- Surround Section -- ················· 22 Schematic Diagram -- Surround Section -- ··················· 25 Printed Wiring Board -- Digital Section -- ···················· 30 Schematic Diagram -- Digital Section -- ······················· 33 Schematic Diagram -- AMP, Power Supply Section -- ·· 38 Printed Wiring Board -- AMP, Power Supply Section -- ··································· 43 Schematic Diagram -- Display Section -- ······················ 48 Printed Wiring Board -- Display Section -- ··················· 53 IC BLOCK DIAGRAMS ················································· 57 IC PIN FUNCTION ························································· 61 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). 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. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 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 VOM that is suitable. Nearl