Aiwa-CXLDB50-cs-sm维修电路原理图.pdf

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1、SERVICE MANUALSony CorporationPersonal Audio GroupPublished by Sony Engineering CorporationAEP ModelCX-LDB30/LDB50UK ModelCX-LDB30E ModelCX-LDB30/LDB50MICRO HI-FI COMPONENT SYSTEM9-879-476-022005D16-1 2005.04Ver. 1.1 2005.04SPECIFICATIONSCX-LDB30/LDB50CX-LDB30/LDB50 are the Amplifier, CD player,Tape

2、 Deck and Tuner section in XR-DB30/DB50. Continued on next page Model Name Using Similar MechanismNEWCDCD Mechanism TypeCDM80BV-F4BD81SectionBase Unit NameBU-F4BD81BOptical Pick-up NameKSM-215CFP/C2NPTAPEModel Name Using Similar MechanismCX-LEM330SectionTape Transport Mechanism TypeCMAL5Z220ACX-LDB5

3、0European model:DIN power output (rated): 60 + 60 W (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):80 + 80 W (6 ohms at 1 kHz, 10% THD)Music power output (reference):200 + 200 W(6 ohms at 1 kHz, 10% THD)Other models:The following measured at AC 220 240 V, 50/60 HzDIN power output (rat

4、ed): 60 + 60 W (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):80 + 80 W (6 ohms at 1 kHz, 10% THD)CX-LDB30European model:DIN power output (rated): 45 + 45 W (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):60 + 60 W(6 ohms at 1 kHz, 10% THD)Music power output (reference):

5、140 + 140 W(6 ohms at 1 kHz, 10% THD)Other models:The following measured at AC 220 240 V, 50/60 HzDIN power output (rated): 45 + 45 W(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):60 + 60 W (6 ohms at 1 kHz, 10% THD)InputsAUDIO IN (RCA pin jacks):Sensitivity 700 mV, impedance 47 kiloh

6、msOutputsPHONES (stereo mini jack):accepts headphones with an impedance of 32 ohms or moreSPEAKER:accepts impedance of 6 ohmsCD player sectionSystemCompact disc and digital audio systemLaser Diode PropertiesEmission duration: continuousLaser Output*: Less than 44.6 W* This output is the value measur

7、ement at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm apertureRadioFans.CN 收音机爱 好者资料库2CX-LDB30/LDB50SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO

8、 SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.Frequency response20 Hz 20 kHzSignal-to-noise ratioMore than 90 dBDynamic rangeMore than 90 dBTape deck sectionRecording system4-track 2-channel stereoFrequenc

9、y response100 10,000 Hz, using Sony TYPE I cassettesTuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning range87.5 108.0 MHz (50-kHz step)AntennaFM lead antennaAntenna terminals75 ohms unbalancedIntermediate frequency10.7 MHzAM tuner sectionTuning rangeEuropean model:531 1,602 k

10、Hz (with the tuning interval set at 9 kHz) Other models:530 1,710 kHz (with the tuning interval set at 10 kHz)531 1,602 kHz (with the tuning interval set at 9 kHz)AntennaAM loop antenna, external antenna terminalIntermediate frequency450 kHz GeneralPower requirementsEuropean model:AC 230 V, 50/60 Hz

11、Other models:AC 120, 220 or 230 240 V, 50/60 HzAdjustable with voltage selectorPower consumptionXR-DB50European model:85 W 0.3 W (in Power Saving mode)Other models:85 WXR-DB30European model:70 W0.3 W (in Power Saving mode)Other models:70 WDimensions (w/h/d) excl. speakers:Approx. 190 x 277 x269 mmMa

12、ss excl. speakersCX-LDB50:5.4 kgCX-LDB30:5.1 kgDesign and specifications are subject to change without notice. Standby power consumption: 0.3 W Halogenated flame retardants are not used in the certain printed wiring boards. Lead-free solder is used for soldering certain parts. Halogenated flame reta

13、rdants are not used in cabinets.RadioFans.CN 收音机爱 好者资料库3CX-LDB30/LDB50TABLE OF CONTENTS1.SERVICING NOTES.42.GENERAL.53.DISASSEMBLY3-1.Disassembly Flow .73-2.Side Panel (L)(R), Top Panel, Back Panel.83-3.CD Mechanism Section.83-4.Front Panel Section .93-5.Power Transformer .93-6.MAIN Board. 103-7.PAN

14、EL Board, CD EJECT Board, JACK Board . 103-8.Cassette Deck Mechanism. 113-9.Cassette Panel. 113-10. CD Mechanism Deck (CDM80BV-F4BD81) . 123-11. Chassis (Top) . 123-12. Lever (Loading R/L). 133-13. Disc Stop Lever, Disc Sensor Lever . 143-14. DRIVER Board . 143-15. BD Board. 153-16. Optical Pick-up

15、(KSM-215CFP/C2NP) . 153-17. Base Unit (BU-F4BD81B) . 163-18. Lever (BU Lock) . 163-19. Close Lever. 173-20. DIR Lever, Gear (IDL-B) . 173-21. Gear (IDL-C) . 184.TEST MODE. 195.MECHANICAL ADJUSTMENTS. 206.ELECTRICAL ADJUSTMENTS. 207.DIAGRAMS7-1.Block Diagram BD Section . 257-2.Block Diagram MAIN Sect

16、ion . 267-3.Printed Wiring Board BD Board . 277-4.Schematic Diagram BD Board . 287-5.Printed Wiring Board DRIVER Board, JACK Board . 297-6.Schematic Diagram DRIVER Board, JACK Board . 307-7.Printed Wiring Board MAIN Section (1/2) . 317-8.Printed Wiring Board MAIN Section (2/2) . 327-9.Schematic Diag

17、ram MAIN Section (1/5) . 337-10. Schematic Diagram MAIN Section (2/5) . 347-11. Schematic Diagram MAIN Section (3/5) . 357-12. Schematic Diagram MAIN Section (4/5) . 367-13. Schematic Diagram MAIN Section (5/5) . 377-14. Printed Wiring Board PANEL Board . 387-15. Schematic Diagram PANEL Board . 397-

18、16. Printed Wiring Board PT Board . 407-17. Schematic Diagram PT Board . 418.EXPLODED VIEWS8-1.Panel Section . 478-2.Front Panel Section . 488-3.Chassis Section. 498-4.CD Mechanism Deck Section 1 (CDM80BV-F4BD81) . 508-5.CD Mechanism Deck Section 2 (CDM80BV-F4BD81) . 518-6.CD Mechanism Deck Section

19、3 (CDM80BV-F4BD81) . 528-7.Base Unit Section . 539.ELECTRICAL PARTS LIST. 54RadioFans.CN 收音机爱 好者资料库4CX-LDB30/LDB50SECTION 1SERVICING NOTESThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, et

20、c. 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 therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on thi

21、s 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.LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve

22、check” in “CD section adjustment” and checkthat the S curve waveforms is output three times.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITNotes on chip component replacementNever reuse a disconnected chip component.Notice that the minus side of a tantalum capacitor may bedamaged by heat.Fle

23、xible Circuit Board RepairingKeep the temperature of the soldering iron around 270 Cduring 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.CAUTIONUse of controls or adjust

24、ments or performance of proceduresother than those specified herein may result in hazardous radiationexposure.UNLEADED 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 prin

25、ted withthe lead free mark due to their particular size): LEAD FREE MARKUnleaded solder has the following characteristics.Unleaded solder melts at a temperature about 40 C higherthan ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slig

26、htly longer time.Soldering irons using a temperature regulator should be set toabout 350 C.Caution: The printed pattern (copper foil) may peel away ifthe heated tip is applied for too long, so be careful!Strong viscosityUnleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solde

27、r so use caution not to let solder bridgesoccur such as on IC pins, etc.Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.This appli

28、ance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located on theexterior.RadioFans.CN 收音机爱 好者资料库5CX-LDB30/LDB50SECTION 2GENERALThis section is extractedfrom instruction manual.Main unitAUDIO IN w; (17, 23, 27)AUDIO IN jack qs (19, 23)BASS control 7 (17)CD SYNC qk (16

29、)Disc slot 9DISPLAY 3 (15, 21, 22)Display window 4FOLDER +/ qg (10, 11, 16)i-Bass 5 (17)PHONES jack qdPLAY MODE ql (10, 11, 16, 26)Remote sensor 2TREBLE control 6 (17)TUNER/BAND w; (12, 14, 17)TUNING +/ qf (12, 14)TUNING MODE ql (12, 14)VOLUME control q; (18, 25)?/1 (power) 1 (7, 14, 27)Z CD (eject)

30、 8 (8, 9)Z PUSH qa (16)./ (go back/go forward) qf (10)m/M (rewind/fast forward) qf (8, 10, 14, 16)x (stop) qh (10, 13, 16)z REC PAUSE/START qj (16)TAPE/N (play) w; (16)CD/NX (play pause) w; (10) List of button locations and reference pagesHow to use this pageUse this page to find the location of but

31、tons and other parts of the system that are mentioned in the text.Illustration numberrDISPLAY ws (15, 21)RRName of button/partReference pageALPHABETICAL ORDERA OP ZBUTTON DESCRIPTIONSHHSsjJ1w;ql2345 67 89q;qaqsqkqjqhqg qfqdRadioFans.CN 收音机爱 好者资料库6CX-LDB30/LDB50Remote controlCD qh (9, 11, 13, 16, 17)

32、CLEAR qd (12)CLOCK/TIMER SELECT 2 (19, 20, 25)CLOCK/TIMER SET 3 (8, 18, 19)DISPLAY ql (15, 21, 22) ENTER 9 (8, 11, 13, 18, 19)EQ qs (17)FM MODE 4 (15, 27)FOLDER +/ qa (10, 11, 16)FUNCTION 6 (8, 9, 11, 12, 14, 16, 17, 23, 27)PLAY MODE qk (10, 11, 16, 26, 28)REPEAT 4 (11)SLEEP w; (18)TAPE qg (16, 17)T

33、UNER/BAND 5 (12, 14, 17)TUNER MEMORY qj (13)TUNING MODE qk (12, 14)VOLUME +/ q; (18, 25)?/1 (power) 1 (7, 14, 19)m/M (rewind/fast forward) 7 (10, 14, 16)X (pause) 8 (10, 16)x (stop) 8 (10, 16)N (play) 8 (10, 16)/+(tuning) qf (12, 17)./ (go back/go forward) qf (8, 10, 18)ALPHABETICAL ORDERA OP ZBUTTO

34、N DESCRIPTIONS4567890321qaqdqsqlqkqjqhqgqfw;Use buttons on the remote for the operation.1Press ?/1 to turn on the system.2Press CLOCK/TIMER SET.3Press . or repeatedly to set the hour.4Press ENTER.5Press . or repeatedly to set the minute.6Press ENTER.The clock starts working.To adjust the clock1Press

35、 CLOCK/TIMER SET.2Press . or until CLOCK SET?appears, then press ENTER.3Do the same procedures as step 3 to 6 above.Notes The clock settings are canceled when you disconnect the power cord or if a power failure occurs. You cannot set the clock in Power Saving Mode (page 21).Setting the clockRadioFan

36、s.CN 收音机爱 好者资料库7CX-LDB30/LDB50SECTION 3DISASSEMBLY3-1.DISASSEMBLY FLOW3-3.CD MECHANISM SECTION(Page 8)3-10.CD MECHANISM DECK(CDM80BV-F4BD81)(Page 12)3-7.PANEL BOARD, CD EJECT BOARD,JACK BOARD(Page 10)3-4.FRONT PANEL SECTION(Page 9)3-8.CASSETTE DECK MECHANISM(Page 11)3-6.MAIN BOARD(Page 10)3-5.POWER

37、TRANSFORMER(Page 9)3-9.CASSETTE PANEL(Page 11)3-2.SIDE PANEL (L) (R), TOP PANEL, BACK PANEL(Page 8)SET3-11.CHASSIS (TOP)(Page 12)3-14.DRIVER BOARD(Page 14)3-17.BASE UNIT(BU-F4BD81B)(Page 16)3-13.DISC STOP LEVER,DISC SENSOR LEVER(Page 14)3-15.BD BOARD(Page 15)3-16.OPTICAL PICK-UP(KSM-215CFP/C2NP)(Pag

38、e 15)3-18.LEVER (BU LOCK)(Page 16)3-19.CLOSE LEVER(Page 17)3-20. DIR LEVER,GEAR (IDL-B)(Page 17)3-21. GEAR (IDL-C)(Page 18)3-12.LEVER (LOADING R/L)(Page 13)This set can be disassembled in the order shown below.RadioFans.CN 收音机爱 好者资料库8CX-LDB30/LDB50Note: Follow the disassembly procedure in the numeri

39、cal order given.qgconnector2p(CN292)1four screws(+BVTP3 10)4six screws(+BVTP3 10)qstwo screws(+BVTP3 10)qdtwo screws(+BVTP3 10)qfsix screws(+BVTP3 10)q;screw (+BVTP3 10)3side panel (L)qatop panelqhback panel7screw(QT2+3 10)8screw(QT2+3 10)9screw(QT2+3 10)5three claws2three claws6side panel (R)7CD me

40、chanism section2wire (flat type) 15core (CN602)1wire (flat type) 27core (CN902)3screw(QT2+3 10)4two screws(QT2+3 10)5claw6connector7p(CN701)3-2.SIDE PANEL (L)(R), TOP PANEL, BACK PANEL3-3.CD MECHANISM SECTIONRadioFans.CN 收音机爱 好者资料库9CX-LDB30/LDB503wire (flat type) 7core (CN905)2wire (flat type) 8core

41、 (CN901)4connector 7p (CNA302)1wire (flat type) 19core (CN904)7screw(QT2+3 10)8screw(QT2+3 10)5screw (+B3)9two claws0front panel section6two tapping screws (B3)1tapping screw (B3)6tapping screw (B3)3tuner (FM/AM)9four screwsqapower transformer04connector 8p (CN002)5connector 2p (CN001)2wire (flat ty

42、pe) 15coreqsplate (PT shield)8holder (pwb PT)7two claws3-4.FRONT PANEL SECTION3-5.POWER TRANSFORMERRadioFans.CN 收音机爱 好者资料库10CX-LDB30/LDB505tapping screw (B3)6two tapping screws (B3)7two tapping screws (B3)8two tapping screws (B3)3screw (+BV3)2two screws (+BV3)9heat sink (main)0MAIN boardclamp1connec

43、tor 8p (CN002)4wire (flat type) 15core (CN602)7tapping screw (B2.6)9eleven tapping screws (B2.6)1two tapping screws (B3)4JACK board0CD EJECT boardqsPANEL board2holder board3wire (flat type) 9core (CN203)qawire (flat type) 19core (CN502)6knob (VOL)5two knobs B/T8claw3-6.MAIN BOARD3-7.PANEL BOARD, CD

44、EJECT BOARD, JACK BOARDRadioFans.CN 收音机爱 好者资料库11CX-LDB30/LDB505cassette deck mechanism1two screws(B3)2clamp3two screws(B3)4wire (flat type) 7core4cassette panel3four claws2Open the cassette panel.1Push the cassette panel.3-8.CASSETTE DECK MECHANISM3-9.CASSETTE PANELRadioFans.CN 收音机爱 好者资料库12CX-LDB30/

45、LDB504CD mechanism deck (CDM80BV-F4BD81)3CD HOLDER2two claws1four tapping screws (B3)1 screw(+BVTP 2.6 8)2 lever (CL UP2)4 three screws (+BVTP 2.6 8)3 two screws (+P 2 10)5 chassis (top)3-10. CD MECHANISM DECK (CDM80BV-F4BD81)3-11. CHASSIS (TOP)RadioFans.CN 收音机爱 好者资料库13CX-LDB30/LDB50lever (loading-R

46、)Align the horizontal position.lever (loading-L)Install the both levers so that they move symmetrically.torsion spring (loading LV)torsion spring (loading RV)11PRECAUTION DURING LEVER (LOADING R / L) INSTALLATION3 lever (loading-L)2 two hooks4 two hooks5 lever (loading-R)3-12. LEVER (LOADING R/L)Rad

47、ioFans.CN 收音机爱 好者资料库14CX-LDB30/LDB50chassis (top)holeInstall the disc stop lever so that the both holes are aligned.holedisc stop lever PRECAUTION DURING DISC STOP LEVER INSTALLATION1 gear (cap)2 gear (IDL-L)3 two claws5 two hooks4 disc sensor lever 6 disc stop lever 2 two screws(+BVTP 2.6 8)3 Remov

48、e soldering from the two points.4 motor (pulley) assy5 DRIVER board 1 belt (MOT)3-13. DISC STOP LEVER, DISC SENSOR LEVER3-14. DRIVER BOARDRadioFans.CN 收音机爱 好者资料库15CX-LDB30/LDB501 CN1012 Remove the two solderings.4 BD board3 Remove the two solderings.5 two insulators7 optical pick-up (KSM-215CFP/C2NP

49、)6 two insulators1 tension spring (F-1)2 tension spring (F-2)3two floating screws(+PTPWHM 2.6)4two floating screws(+PTPWHM 2.6)3-15. BD BOARD3-16. OPTICAL PICK-UP (KSM-215CFP/C2NP)RadioFans.CN 收音机爱 好者资料库16CX-LDB30/LDB501 screw(+BVTP 2.6 8)2 lever (CL UP2)3 holder down b spring4 floating screw(+PTPWH

50、M 2.6)5 floating screw(+PTPWHM 2.6)6 base unit (BU-F4BD81B)31 gear (cap)2 gear (BU lock)4 three hooks5 lever (BU lock)3-17. BASE UNIT (BU-F4BD81B)3-18. LEVER (BU LOCK)RadioFans.CN 收音机爱 好者资料库17CX-LDB30/LDB501 washer (3-1-0.4)2 close lever spring3 claw4 shaft disc stop5 close lever 1 tension coil spri