Sony str de 635 rec service manual
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Ñ 2 Ñ Inputs (Digital) DVD/LD (coaxial): Sensitivity: Ð Impedance: 75W S/N: 100dB (A, 20kHz LPF) DVD/LD (Optical): Sensitivity: Ð Impedance: Ð S/N: 100dB (A, 20kHz LPF) Outputs MD/TAPE, (REC OUT); VIDEO1,2 (AUDIO OUT): Voltage: 150mV, Impedance: 10kW SUB WOOFER: Voltage:2V Impedance: 1kW PHONES: Accepts low-and high-impedance headphones BASS BOOST +6dB at 70Hz Sampling Frequency 48kHz EQ BASS: 100Hz Ð 1.0kHz (21steps) MID: 500Hz Ð 5.0kHz (21steps) TABLE: 1.0kHz Ð 10kHz (21steps) Gain levels: ±10dB, 1dB step FM tuner section Tuning range 87.5 Ð 108.0MHz Antenna terminals 75W, unbalanced Sensitivity Mono: 18.3dBf, 2.2µV/75W Stereo: 38.3dBf, 22.5µV/75W Usable sensitivity 11.2dBf, 1µV/75W S/N Mono: 76dB Stereo: 70dB Harmonic destortion at 1kHz Mono: 0.3% Stereo: 0.5% Separetion 45dB at 1kHz Frequency response 30Hz Ð 15kHz + 0.5/Ð2dB Selectivity 60dB at 400kHzAM tuner section Tuning range USA, Canadian models: With 10-kHz tuning scale: 530 Ð 1,710kHz d) With 9-kHz tuning scale: 531 Ð 1,710kHz d) AEP model 531 Ð 1,602kHz Antenna Loop antenna Usable sensitivity 50dB/m (at 1,000kHz or 999kHz) S/N 54dB (at 50mV/m) Harmonic destortion 0.5% (50mV/m, 400kHz) Selectivity At 9kHz: 35dB At 10kHz: 40dB d) You can change the AM tuning scale to 9kHz. After tuning in any AM station, turn off the receiver. Hold down the TUNING+ button and press the 1/u button. All preset stations will be erased when you change the tuning scale. To reset the scale to 10kHz, repeat the procedure. Video section Inputs 1Vp-p 75W Outputs 1Vp-p 75W General System Tuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type equalizer Power amplifier section: Pure-complementary SEPP Power requirements USA, Canadian models: 120V AC, 60Hz AEP model 230V AC, 50/60Hz Power consumption USA: 270W Canada: 285VA AEP: 200W AC outlets USA, Canadian models: 2switched, total 100W AEP model 1switched, max 100W Dimensions 430 ´ 364 ´ 157.5mm (17 ´ 14 5/16 ´ 6 1/4 in.) including projecting parts and controls Mass (Approx.) USA, Canadian models: 9.5kg (20 lbs. 15 oz.) AEP model 10.1kg Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander RM-PP402 (remote) (1) R6 (size-AA) batteries (2) FM antenna adapter (1) Design and specifications are subject to change without notice.
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Ñ 3 Ñ 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. TABLE OF CONTENTS SAFETY CHECK-OUT (US model only) 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 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 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) Earth GroundAC voltmeter (0.75V) 1.5k ½ 0.15 µF Fig. A. Using an AC voltmeter to check AC leakage. To Exposed Metal Parts on Set 1. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááááááá 4 2. SERVICEING NOTE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááá 6 3. TEST MODE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááááááá 6 4. DIAGRAMS 4-1. Block Diagram Main Section ááááááááááááááááááááááááááááááááááááááááááá 7 4-2. Block Diagram Power Section ááááááááááááááááááááááááááááááááááááááááá 9 4-3. Circuit Board Location ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áá 11 4-4. Schematic Diagram Digital Section(1/3) ááááááááááááááááááááááá 13 4-5. Schematic Diagram Digital Section(2/3) ááááááááááááááááááááááá 15 4-6. Schematic Diagram Digital Section(3/3) ááááááááááááááááááááááá 17 4-7. Printed Wiring Board Digital Section(1/2) ááááááááááááááááááááá 19 4-8. Printed Wiring Board Digital Section(2/2) ááááááááááááááááááááá 21 4-9. Printed Wiring Board Display Section ááááááááááááááááááááááááááá 23 4-10. Schematic Diagram Display Section áááááááááááááááááááááááááááááá 25 4-11. Printed Wiring Board Surround Section ááááááááááááááááááááááááá 27 4-12. Schematic Diagram Surround Section ááááááááááááááááááááááááááá 29 4-13. Printed Wiring Board Rear AMP Section ááááááááááááááááááááááá 31 4-14. Schematic Diagram Rear AMP Section ááááááááááááááááááááááááá 33 4-15. Printed Wiring Board Power Section ááááááááááááááááááááááááááááá 35 4-16. Schematic Diagram Power Section áááááááááááááááááááááááááááááááá 37 4-17. Printed Wiring Board Video Section áááááááááááááááááááááááááááááá 39 4-18. Schematic Diagram Video Section ááááááááááááááááááááááááááááááááá 41 4-19. Printed Wiring Board Main Section ááááááááááááááááááááááááááááááá 43 4-20. Schematic Diagram Main Section(1/2) áááááááááááááááááááááááááá 45 4-21. Schematic Diagram Main Section(2/2) áááááááááááááááááááááááááá 47 4-22. IC Pin Function ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááá 49 4-23. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááá 59 5. EXPLODED VIEWS 5-1. Front Panel Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááá 62 5-2. Chassis Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááá 63 6. ELECTRICAL PARTS LIST ááááááááááááááááááááááááááááááááááááááá 64