Sony-AVDS50-rec-sm 维修电路原理图.pdf
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1、1Model Name Using Similar MechanismNEWMechanism TypeCDM66D-DVBU15Base Unit NameDVBU15Optical Pick-up NameTDP022WSERVICE MANUALUS ModelCanadian ModelAVD-S50ESAEP ModelUK ModelAVD-S50AVD-S50/S50ESSUPER AUDIO CD/DVD RECEIVERSPECIFICATIONSAUDIO POWER SPECIFICATIONS (AVD-S50ES)POWER OUTPUT AND TOTAL HARM
2、ONIC DISTORTION:With 6 ohm loads, both channels driven, from 20 20,000 Hz; rated100 watts per channel minimum RMS power, with no more than 0.7 %total harmonic distortion from 250 milliwatts to rated output.Amplifier sectionStereo mode100 W + 100 W (6 ohms, 20 20,000 Hz, THD 0.7 %)Surround modeFront:
3、 100 W + 100 WCenter*: 100 WRear*: 100 W + 100 W (6 ohms, 20 20,000 Hz, THD 0.7 %)* Depending on the sound field settings and the source, there may be no sound output.Inputs (Analog)ANALOG IN:Sensitivity: 150 mVImpedance: 50 kilohmsInputs (Digital)DIGITAL IN OPTICAL:Sensitibity: DIGITAL IN COAXIAL:S
4、ensitibity: 0.5 VImpedance: 75 ohmsOutputs (Analog)ANALOG OUT:Voltage: 2 VImpedance: 1 kilohmsSUBWOOFER ANALOG OUT:Voltage: 3 VImpedance: 47 kilohmsPHONES:Accepts low- and high-impedance headphonesOutputs (Digital)DIGITAL OUT OPTICALSensitibity: Continued on next page Ver 1.1 2002. 09Sony Corporatio
5、nHome Audio CompanyPublished by Sony Engineering Corporation9-874-154-022002I0400-1 2002. 09RadioFans.CN 收音机爱 好者资料库2Super Audio CD/DVD systemLaserSemiconductor laser(Super Audio CD/DVD: = 650 nm)(CD: = 780 nm)Emission duration: continuousSignal format systemAVD-S50: PALAVD-S50ES: NTSCFrequency respo
6、nse (at 2 CH STEREO mode)DVD (PCM): 2 Hz to 22 kHz (1.0 dB)CD: 2 Hz to 20 kHz (1.0 dB)Signal-to-noise ratioMore than 80 dB (VIDEO 1 (AUDIO) connectors only)Harmonic distortionLess than 0.03 %FM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning range87.5 108.0 MHz (100 kHz step)An
7、tennaFM wire antennaAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzAM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeAVD-S50ES:530 1,710 kHz (with the interval set at 10 kHz)531 1,710 kHz (with the interval set at 9 kHz)AVD-S50:531 1,710 kHz (with the i
8、nterval set at 9 kHz)AntennaLoop antennaIntermediate frequency450 kHzVideo section (AVD-S50ES)InputsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsOutputsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsVideo section (EURO AV) (AVD-S50)InputVideo: 1 Vp-p 75 ohmsOutputVideo: 1 Vp-p 75 ohmsGeneralPower re
9、quirementsAVD-S50ES: 120 V AC, 60 HzAVD-S50: 230 V AC, 50/60 HzPower consumption180 W1.5 W(at the Power Saving Mode)Dimensions (approx.)430 98 453 mm (17 3 7/8 17 7/8 inches) (w/h/d)incl. projecting partsMass (approx.)7.5 kg (16 lb. 9 oz.)Operating temperature5 C to 35 C (41 F to 95 F)Operating humi
10、dity5 % to 90 %Design and specifications are subject to change without notice.AVD-S50/S50ESSELF DIAGNOSIS FUNCTIONRadioFans.CN 收音机爱 好者资料库3SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPE
11、RATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.Fig. A. Using an AC voltmeter to check AC leakage.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety check before releasing the
12、set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC leakage. Check leakage asdescribed below.LEAKAGE TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part h
13、aving areturn 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 RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2. A battery-operated AC milliammeter.
14、The Data Precision 245digital multimeter is suitable for this job.3. Measuring the voltage drop across a resistor by means of a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale. TheSimpson 250 and Sanwa SH-63Trd are exampl
15、es of a passiveVOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. A)ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICESSONT CRITIQUES POUR LA SCU
16、RIT DE FONCTIONNEMENT.NE REMPLACER CES COMPOSANTS QUE PAR DES PICESSONY DONT LES NUMROS SONT DONNS DANS CE MANUELOU DANS LES SUPPLMENTS PUBLIS PAR SONY.AVD-S50/S50ESNotes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may b
17、e dam-aged by heat.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C duringrepairing. Do not touch the soldering iron on the same conductor of thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.CAUTIONU
18、se of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundUS, Canadian modelAEP, UK model4TABLE OF CONTENTSSELF DIAGNOSIS FUNCTION.21. SERVICING NOTES.
19、52. GENERALLocation of Controls. 63. DISASSEMBLY. 103-1. Case . 103-2. Loading Panel Assy. 113-3. Front Panel Assy . 113-4. Back Panel Assy, Power Sw Board . 123-5. Digital Amp Board, Power Board, DVD Board . 123-6. Mechanism Deck. 133-7. Pick-up Unit . 133-8. Belt (LD), Loading Board, Motor (L) Ass
20、y . 144. TEST MODE. 155. DIAGRAMS5-1. IC Pin Function Description . 225-2. Circuit Boards Location . 405-3. Note for Printed Wiring Boards and Schematic Diagrams. 405-4. Printed Wiring Board RF Section . 425-5. Schematic Diagram RF Section . 435-6. Printed Wiring Board DVD Section . 445-7. Schematic
21、 Diagram DVD Section (1/10). 465-8. Schematic Diagram DVD Section (2/10). 475-9. Schematic Diagram DVD Section (3/10). 485-10. Schematic Diagram DVD Section (4/10). 495-11. Schematic Diagram DVD Section (5/10). 505-12. Schematic Diagram DVD Section (6/10). 515-13. Schematic Diagram DVD Section (7/10
22、). 525-14. Schematic Diagram DVD Section (8/10). 535-15. Schematic Diagram DVD Section (9/10). 545-16. Schematic Diagram DVD Section (10/10). 555-17. Printed Wiring Board Digital Amp Section . 565-18. Schematic Diagram Digital Amp Section (1/2) . 585-19. Schematic Diagram Digital Amp Section (2/2) .
23、 595-20. Printed Wiring Board Video Section. 605-21. Schematic Diagram Video Section. 615-22. Printed Wiring Board RGB Section . 625-23. Schematic Diagram RGB Section. 635-24. Printed Wiring Boards In/Out Section . 645-25. Schematic Diagram In/Out Section. 655-26. Printed Wiring Boards Display Secti
24、on . 665-27. Schematic Diagram Display Section. 675-28. Printed Wiring Board Speaker Section . 685-29. Schematic Diagram Speaker Section . 695-30. Printed Wiring Boards Power Section. 705-31. Schematic Diagram Power Section . 715-32. IC Block Diagrams. 726. EXPLODED VIEWS6-1. Case Section . 816-2. F
25、ront Panel Section . 826-3. Chassis Section . 836-4. Back Panel Section. 846-5. CD Mechanism Deck Section . 856-6. Base Unit Section. 867. ELECTRICAL PARTS LIST.87AVD-S50/S50ES5AVD-S50/S50ESSECTION 1SERVICING NOTESNOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical
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