Sony-SCDC555ES-sacd-sm 维修电路原理图.pdf
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1、SCD-C555ESUS ModelCanadian ModelSERVICE MANUALSUPER AUDIO CD PLAYERSony CorporationAudio Entertainment GroupGeneral Engineering Dept.9-873-872-112001C1600-1 2001.3Ver 1.0 2001. 03SPECIFICATIONSModel Name Using Similar MechanismNEWCD Mechanism TypeCDM59AOptical Pick-up TypeKHM-230AAA/J1NPWhen a super
2、 audio CD is playedPlaying frequency range2 Hz to 100 kHzFrequency response2 Hz to 50 kHz (3 dB)Dynamic range105 dB or moreTotal harmonic distortion rate0.0015 % or lessWow and flutterValue of measurable limit (0.001 %W. PEAK) or lessWhen a CD is playedFrequency response2 Hz to 20 kHzDynamic range99
3、 dB or moreTotal harmonic distortion rate0.002 % or lessWow and flutterValue of measurable limit (0.001 %W. PEAK) or lessOutput connectorGeneralLaserSemiconductor laser ( = 780 nm)Emission duration: continuousLaser radiant power: 5.47 uW at 650 nm*These output is the value measured at a distance of
4、about 200mm from the objective lens surface on the optical pick-up.Power requirements120 V AC, 60 HzPower consumption38 WDimensions (w/h/d)430 138 409 mm(17 5 1/2 16 1/8 in.)incl. projecting partsMass (approx.)11.0 kg (24 lbs 5 oz.)Supplied accessoriesDesign and specifications are subject to change
5、without notice.Load impedanceANALOG OUTDIGITAL (CD)OUT OPTICAL*DIGITAL (CD)OUT COAXIAL*PhonojacksJack type2 Vrms(at 50 kilohms)Squareopticaloutputconnector18 dBm0.5 Vp-pOver 10 kilohmsLight emittingwave length:660 nmOutput level75 ohmsCoaxialoutputconnector( )*Output only the audio signals of the CD
6、10 mWPHONESStereophone jack32 ohms Audio connecting cordphono jack 2 (Red and White) y phono jack 2 (Redand White) (2)phono jack 1 (Black) y phono jack 1 (Black) (2) Monaural (2P) mini-plug cord (1) (Connecting cord forCONTROL A1 ) (supplied for Canadian models only) Remote commander (remote) RM-SC5
7、00 (1) R06 (size-AA) batteries (2)RadioFans.CN 收音机爱 好者资料库2SCD-C555ESSAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPP
8、EAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PICES SON
9、YDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety checks before releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all othe
10、r exposed metal parts for AC leakage. Check leakage asdescribed below.LEAKAGEThe AC leakage from any exposed metal part to earth Ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microampers).Leakage current can be measured by any
11、 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. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resi
12、stor by means of aVOM or battery-operated AC voltmeter. The “limit” indicationis 0.75 V, so analog meters must have an accurate low-voltagescale. The Simpson 250 and Sanwa SH-63Trd are examples ofa passive VOM that is suitable. Nearly all battery operateddigital multimeters that have a 2V AC range a
13、re suitable. (SeeFig. A)Fig. A. Using an AC voltmeter to check AC leakage.0.15FTo Exposed MetalParts on Set1.5kACvoltmeter(0.75V)Earth GroundTABLE OF CONTENTS1. SERVICING NOTES (1) .32. GENERAL. 43. DISASSEMBLY3-1. Case 63-2. Front Panel Section 63-3. Main Board73-4. Audio Board 73-5. D-Power, I/O B
14、oard83-6. CD Mechanism Deck (CDM59-DVBU5) 83-7. Optical Pick-Up Block (KHM-230AAA/J1NP)93-8. Table Assy 93-9. Tray, Sensor Board 103-10.Loading Motor Board 103-11.Adjusting Phase of Swing Gear and Gear (U/D) 114. DIAGRAMS4-1. Block Diagrams 13 RF/Servo Section 13 Main Section-1 14 Main Section-2 15
15、Audio Section 16 Display/Power Section 174-2. Schematic Diagram RF Section 184-3. Printed Wiring Board RF Section 194-4. Printed Wiring Board Main Section (Side A) 204-5. Printed Wiring Board Main Section (Side B) 214-6. Schematic Diagram Main Section (1/5) 224-7. Schematic Diagram Main Section (2/5
16、) 234-8. Schematic Diagram Main Section (3/5) 244-9. Schematic Diagram Main Section (4/5) 254-10. Schematic Diagram Main Section (5/5) 264-11. Schematic Diagram Audio Section (1/2) 274-12. Schematic Diagram Audio Section (2/2) 284-13. Schematic Diagram D-Power Section 294-14. Printed Wiring Board Au
17、dio Section 304-15. Printed Wiring Board In Out/D-Power Section 314-16. Schematic Diagram In Out Section 314-17. Schematic Diagram Display Section 324-18. Printed Wiring Board Display Section 334-19. Schematic Diagram HP Section 344-20. Printed Wiring Board HP Section 354-21. Schematic Diagram Senso
18、r Section 364-22. Printed Wiring Board Sensor Section 374-23. Schematic Diagram Power Section 384-24. Printed Wiring Board Power Section 394-25. IC Block Diagrams 404-26. IC Pin Function Description 445. SERVICING NOTES (2). 576. TEST MODE. 587. EXPLODED VIEWS7-1.Case Section 747-2.Front Panel Secti
19、on 757-3.Main Chassis Section 767-4.CD Mechanism (CDM59-DVBU5) -1 Section 777-5.CD Mechanism (CDM59-DVBU5) -2 Section 788. ELECTRICAL PARTS LIST. 79RadioFans.CN 收音机爱 好者资料库3SCD-C555ESCAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in haza
20、rdousradiation exposure.LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” and checkthat the S curve waveform is output three times.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum
21、 capacitor may be damaged by heat.Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270Cduring 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 unsolde
22、ring.This appliance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located on therear exterior.SECTION 1SERVICING NOTES (1)NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of
23、the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepain parts.The flexible board is easily damaged and should be ha
24、ndled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission,observe from more than 30 cm away from the objective
25、lens.The emission check enables continuous checking of the S curve.When the bottom plate is removed, the RF board can be checked.eleven screws(BVTP3 8)RF boardbottom plate4SCD-C555ESSECTION 2GENERALThis section is extractedfrom instruction manual.9 EX-CHANGE button (18)Press to replace discs while p
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