Sony-RCDW50C-rcd-sm 维修电路原理图.pdf

RCD-W50CUS ModelCanadian ModelE ModelSERVICE MANUALCOMPACT DISC RECORDERSony CorporationHome Audio CompanyPublished by Sony Engineering Corporation9-874-151-022003L16-1 2003.12SPECIFICATIONSVer 1.1 2003. 12Model Name Using Similar MechanismNEWCD SectionCD Mechanism TypeCDM53L-30B61BBase Unit TypeBU-30BBD61BOptical Pick-up TypeA-MAX.3Model Name Using Similar MechanismNEWCD-R/CD-RWCD Mechanism TypeCDM65-RBD1SectionBase Unit TypeRBD1Optical Pick-up TypeKRM-220CAADECK A (the CD player section)SystemCompact disc digital audiosystemLaserSemiconductor laser ( =780 nm)Emission duration:continuousFrequency response20 Hz 20,000 Hz (0 5dB)DECK B (the CD-R and CD-RWrecording section)SystemCompact disc digital audiosystemLaserSemiconductor laser ( =780 nm)Emission duration:continuousPlayable discsCD, CD-R, CD-RWRecordable discsCD-R, CD-RW (for musicuse)Frequency response20 Hz - 20,000 Hz (0 5dB)GeneralPower requirementsNorth American model:120 V AC, 60 HzOther models:110-120/220-240V AC,50/60 HzPower consumption25 WDimensions (approx ) (w/h/d) incl projecting partsand control430 108 399 mm( 17 4 3/8 15 3/4 inch)Mass (approx )6 8 kg(15 lbs)Supplied accessoriesDesign and specifications are subject to changewithout notice Audio connecting cordsPhono jack 2 (red/white) Phono jack 2 (red/white) (2) Remote commander (remote) (1) Size AA (R6) batteries (2)InputsANALOG IN(Phono jacks)Impedance: 47 kilohmsRated input: 500 mVrmsMinimum input250 mVrmsDIGITAL OPTICAL IN(Square optical connector jack)Optical wavelength:660 nmOutputsANALOG OUT(Phono jacks)Impedance: 47 kilohmsRated output: 2 VrmsLoad impedance: over10 kilohmsDIGITAL OPTICAL OUT(Square optical connector jack)Wavelength: 660 nmOutput level: 18 dBmPHONES(Phono jack)Load impedance: 32 ohmsOutput level: 12mWRadioFans.CN 收音机爱 好者资料库2This appliance is classified as a CLASS 1 LASER product. TheCLASS 1 LASER PRODUCT MARKING is located on the rearexterior.The following caution label is located inside the apparatus.Laser component in this product is capableof emitting radiation exceeding the limit forClass 1.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous radiationexposure.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may bedamaged 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 thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.RCD-W50CSAFETY-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 NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PISES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPMENTS PUBLIS PAR SONY. After correcting the original service problem, perform thefollowing 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 asdescribed below.LEAKAGE The 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 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. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor 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 are suitable. (SeeFig. A)SAFETY CHECK-OUTTo Exposed Metal Parts on Set0.15 F1.5 kACVoltmeter(0.75 V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.MODEL IDENTIFICATION BACK PANEL Parts No.PARTS No.MODEL4-238-401-04-238-401-14-238-401-3USCanadianERadioFans.CN 收音机爱 好者资料库3RCD-W50CTABLE OF CONTENTS1. SERVICING NOTE42. GENERAL53. DISASSEMBLY 63-1. Case (409538) 73-2. Loading Panel (CDR) 73-3. Front Panel Section 83-4. CD-SW Board, LED Board, DISPLAY Board 83-5. CD Mechanism Deck (CDM65-RBD1) 93-6. Tray 93-7. CDR Board 103-8. Holder (MG) Sub Assembly, Dust Cover 103-9. Optical Pick-Up (KRM-220CAA)113-10. Motor Assembly (Loading) (M201) 113-11. Cam (CH) 123-12. MAIN Board123-13. CD Mechanism Deck (CDM53L-30B61B)133-14. Fitting Base (Magnet) Assembly 133-15. CLAMP MOTOR Board,Motor (Clamp) Assembly (M701) 143-16. Fitting Base (Guide) Assembly, Bracket (Chassis) 143-17. Tray (Sub) 153-18. Chassis (Mold B) 153-19. LOAD MOTOR Board,Motor (Loading) Assembly (M702) 163-20. Stocker Section 163-21. Slider (Selection), Tension Spring (Shutter),Slider (Shutter) 173-22. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)17Precaution During Gear (Gear U/D Slider),Gear (Gear B), Gear (Gear A) Installation183-23. Gear (Chucking) 183-24. BD Board 193-25. Optical Block Section 194. TEST MODE 215. ELECTRICAL ADJUSTMENTS24CD SECTION 24CD-R/RW SECTION256. DIAGRAMS556-1. Block Diagrams CD-R Section 56 CD Section 57 POWER/DISPLAY Section 586-2. Printed Wiring Board BD Section 596-3. Schematic Diagram BD Section 606-4. Printed Wiring Board SENSER/MOTOR/SW Section 616-5. Schematic Diagram SENSER/MOTOR/SW Section 626-6. Printed Wiring Board CD-R Section (Side A) 636-7. Printed Wiring Board CD-R Section (Side B) 646-8. Schematic Diagram CD-R Section (1/4) 656-9. Schematic Diagram CD-R Section (2/4) 666-10. Schematic Diagram CD-R Section (3/4) 676-11. Schematic Diagram CD-R Section (4/4) 686-12. Printed Wiring Board MAIN Section (Side A) 696-13. Printed Wiring Board MAIN Section (Side B) 706-14. Schematic Diagram MAIN Section (1/2) 716-15. Schematic Diagram MAIN Section (2/2) 726-16. Printed Wiring Board LED Section 736-17. Schematic Diagram LED Section 746-18. Printed Wiring Board DISPLAY Section 756-19. Schematic Diagram DISPLAY Section 766-20. IC Block Diagrams 776-21. IC Pin Functions Description807. EXPLODED VIEWS547-1. Case Section907-2. Front Panel Section 917-3. Chassis Section 927-4. Overall Section (CDM53L-30B61B)937-5. Chassis (Mold) Assembly Section (CDM53L-30B61B) 947-6. Chassis Section (CDM53L-30B61B) 957-7. Optical Block Section 967-8. CDM65-RBD1978. ELECTRICAL PARTS LIST98Unleaded solderBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size.) : LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher thanordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful! Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc. Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.4RCD-W50CSECTION 1SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of 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 handled 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 lens.The emission check enables continuous checking of the S curve.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.MessageC12/Cannot CopyC13/Rec ErrorC14/TOC ErrorC41/Cannot CopyC71/Din UnlockExplanationYou are trying to record a disc thatcannot be played back in DECK-Aor with an external device, such asCD-ROM or VIDEO CD. Remove the disc, and then insert amusic CD for playback.Recording has not been completedsuccessfully because of vibration. Relocate the unit in a place free ofvibration and restart the recordingagain.The disc you try to record isexcessively dirty (such as oil-stained or finger marked) orscratched. Or the disc is notnormal. Replace the disc with another oneand restart the recording again.The unit did not read the TOCinformation. Insert other discs.The sound source you are trying torecord is a copy of a commercialmusic software. Or you are tryingto record on a CD-R/CD-RWdigitally. Because of the restriction of theSerial Copy Management System,you cannot record a copy of acommercial music software.Neither can you record a CD-R/CD-RW digitally.If this message is displayedmomentarily, this is not an error. Itis caused by the digital signalduring recording.During recording of a digital soundsource, the connecting cable hasbeen disconnected or the player ofthe sound source has turned off. Connect the cable or turn on thedigital player.Self-diagnosis FunctionWhen the self-diagnosis function is activated toprevent the player from malfunctioning, threecharacter service numbers in a combinationwith a message appears in the display. In thiscase, check the following table.5RCD-W50CSECTION 2GENERAL36411 POWER button2 H button3 DISC 1 to DISC 5 A button and indicators4 CD SYNCHRO NORMAL button5 CD SYNCHRO HIGH button6 OPEN/CLOSE A button7 H button8 INPUT button9 FINALIZE buttonq; ERASE buttonqa SBM button and indicatorqs REC z buttonqd X buttonqf REC LEVEL knobqg x buttonqh PLAY MODE buttonqj TIME buttonqk DISPLAY buttonql YES buttonw; l AMS L knobwa CLEAR buttonws MENU/NO buttonwd l AMS L knobwf CLEAR buttonwg PLAY MODE buttonwh TIME buttonwj x buttonwk PHONES jackwl X buttone; PHONE LEVEL knob 25978q;qaqsqdqfqgqhqjqkqlw;wdwawfwjwke;wlwgwhws6RCD-W50CSECTION 3DISASSEMBLYNote : Disassemble the unit in the order as shown below.MOTOR ASSEMBLY (LOADING) (M201)OPTICAL PICK-UP (KRM-220CAA)CAM (CH)LOADING PANEL (CDR)CD MECHANISM DECK (CDM53L-30B61B)CD MECHANISM DECK (CDM65-RBD1)FITTING BASE (MAGNET) ASSEMBLYFITTING BASE (GUIDE) ASSEMBLY,BRACKET (CHASSIS)BD BOARDLOAD MOTOR BOARD, MOTOR (LOADING) ASSEMBLY STOCKER SECTIONGEAR (GEAR A), GEAR (GEAR B), GEAR(U/D SLIDER)GEAR (CHUCKING)SLIDER (SELECTION), TENSION SPRING (SHUTTER), SLIDER (SHUTTER)TRAY (SUB)CHASSIS (MOLD B)OPTICAL BLOCK SECTIONCLAMP MOTOR BOARD, MOTOR (CLAMP) ASSEMBLYCD-SW board, LED board, DISPLAY boardCDR BOARDHOLDER (MG) SUB ASSEMBLY, DUST COVERTRAYMAIN BOARDCASE (409538)FRONT PANEL SECTIONSET7RCD-W50CNote : Follow the disassembly procedure in the numerical order given.3-1. Case (409538)3-2. Loading Panel (CDR)4case (409538)2two screws (case 3 TP2 3 8)3two screws (case 3 TP2 3 8)1two screws (case 3 TP2 3 8)1 Slide the lever (cam (CH) to the direction of arrow.Front panel sideCD mechanism deck (CDM65-RBD1)32lever (cam (CH)two hooks4 loading panel (CDR)8RCD-W50C3-3. Front Panel Section3-4. CD-SW Board, LED Board, DISPLAY Board7two claws8front panel section1connector (2core)(CN900)2connector (3core)(CN690)4connector (2core)(CN920)5three screws (+BVTP 3 8)6 four screws (+BVTP 3 8)3 flexible flat cable (21core) (CN671)5three screws (+BVTP 2.6 8)7four claws 2two knobs (AMS)1knob (AMS)6twelve screws (+BVTP 2.6 8)3four screws (+BVTP 2.6 8)8Remove the soldering.HARNESS PROCESSING CD-SW board4CD-SW board9 LED boardqaDISPLAY boardq;flexible flat cable (21core) (CN700)9RCD-W50C3-5. CD Mechanism Deck (CDM65-RBD1)3-6. Tray3four screws (+BVTP 3 8)2 flexible flat cable (11core) (CN630)1 connector (CN631)4 CD mechanism deck (CDM65-RBD1)1 Slide the lever (cam (CH) to the direction of arrow.4 tray2 Pull the tray while pressing the claw of the chassis in the direction of the arrow. 3 Pull the tray while pressing the claw of the chassis and the claw of the tray in the direction of the arrow. front panel sidelever (cam (CH)clawclawchassischassis10RCD-W50C3-8. Holder (MG) Sub Assembly, Dust Cover3-7. CDR Board7 claw6 claw8connector (2 core) (CN104)3 flexible flat cable (32core) (CN101)4 flexible flat cable (11core) (CN102)5 flexible flat cable (11core) (CN103)9 CDR board2 bottom plate1four screws (+BVTP 2.6 8)4three screws (+BVTP 2.6 8)3holder (MG) sub assembly1two claws2two claws5dust cover11RCD-W50C3-9. Optical Pick-Up (KRM-220CAA)3-10. Motor Assembly (Loading) (M201)5 flexible flat cable (32core) (from optical device)1two step screws2two screws (2X9) (G with), +p tappin)6optical pick-up (KRM-220CAA)3two insulators (main)4two insulators (main)1 Slide the cam (CH) to the direction of arrow.2 Remove the belt (loading) from the pulley of the motor assembly.3 two claws4 motor assembly (loading) (M201)12RCD-W50C3-11. Cam (CH)3-12. MAIN Board116screw (+PTPWH 2.6 8)5holder (BU) sub assemblycam (CH)claw1243Aqaq; Slide the cam (CH) to the direction of arrow A while pressing the claw. qs cam (CH)7 gear (C)9 gear (B)8 claw9screw (+BVTP 3 8)7 flexible flat cable (23core) (CN660)5 flexible flat cable (17core) (CN640)1 flexible flat cable (21core) (CN671)8 connector (4core) (CN631)6 connector (2core) (CN900)2 connector (3core) (CN690)4 connector (5core) (CN641)3 flexible flat cable (11core) (CN630)qathree screws (+BVTP 3 8)q;bracket (TR)qhMAIN boardqgpower transformerqsfour screws (+BVTT 3 6)qdtwo screws (+BVTT 3 6)qfRemove the soldering.13RCD-W50C3-13. CD Mechanism Deck (CDM53L-30B61B)3-14. Fitting Base (Magnet) Assembly2four screws (+BVTP 3 8)4 flexible flat cable (17core) (CN701)3 flexible flat cable (23core) (CN101)1 connector (CN641)5 CD mechanism deck (CDM53L-30B61B)1connector(CN710)3fitting base (magnet) assembly2 four screws (+BTTP M2.6 )14RCD-W50C3-15. CLAMP MOTOR Board, Motor (Clamp) Assembly (M701)3-16. Fitting Base (Guide) Assembly, Bracket (Chassis)2 two screws (+BTTP M2.6)1 belt (mode)3 Remove the two