Sony-CDPCX455-cd-sm 维修电路原理图.pdf

CDP-CX455US ModelCanadian ModelAEP ModelUK ModelSERVICE MANUALCOMPACT DISC PLAYERSPECIFICATIONSModel Name Using Similar MechanismNEWCD Mechanism TypeCDM62-K1BD46ABase Unit TypeBU-K1BD46AOptical Pick-up TypeKSM-213BFNSony CorporationHome Audio CompanyPublished by Sony Engineering Corporation9-873-947-012002D1600-1 2002.04Ver 1.0 2002. 04 Audio cord (1) Monaural (2P) mini-plug cord (1) (Connecting cordfor CONTROL A1II) (supplied for Canadian modelsonly) Remote commander (remote) (1) Size AA (LR6) batteries (2)Compact disc playerLaserSemiconductor laser ( = 780 nm)Emission duration: continuousLaser outputMax 44.6 W* This output is the value measured ata distance of 200 mm from theobjective lens surface on the OpticalPick-up block with 7 mm aperture.Frequency response20 Hz to 20 kHz 0.5 dBSignal-to-noise ratioMore than 108 dBDynamic rangeMore than 87 dBHarmonic distortionLess than 0.009%OutputLINE OUTDIGITAL OUT(OPTICAL)JacktypePhonojacksOpticaloutputconnectorMaximumoutputlevel2 V(at 50 kilohms)18 dBmLoadimpedanceOver 10 kilohmsWave length: 660 nmGeneralPower requirementsPower consumption16 W1 W (at the Power Saving Mode)Dimensions (approx.)430 189 537 mm(w/h/d)(17 7 1/2 21 1/4 in.) incl. projectingpartsMass (approx.)8.8 kg (19 lbs 7 oz.)Supplied accessoriesDesign and specifications are subject to change without notice.Where purchasedUS, CanadaEuropePower requirements120 V AC, 60 Hz230 V AC, 50/60 HzRadioFans.CN 收音机爱 好者资料库2CDP-CX455CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum 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 unsoldering.Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.This appliance is classified asa CLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.The followingcaution label islocated inside ofthe unit.PARTS No.MODELMODEL IDENTIFICATION BACK PANEL 4-238-082-0s4-238-082-1s4-238-082-2sUSCNDAEP, UKSAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTSWHOSE PART NUMBERS APPEAR AS SHOWN IN THISMANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SURLES DIAGRAMMES SCHMATIQUES ET LA LISTE DESPICES SONT CRITIQUES POUR LA SCURIT DEFONCTIONNEMENT. NE REMPLACER CES COMPOSANTSQUE PAR DES PICES SONY DONT LES NUMROSSONT DONNS DANS CE MANUEL OU DANS LESSUPPLMENTS 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 other 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 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)Fig. A. Using an AC voltmeter to check AC leakage.PART NO.0.15FTo Exposed MetalParts on Set1.5kACvoltmeter(0.75V)Earth Ground AbbreviationCND : Canadian modelRadioFans.CN 收音机爱 好者资料库3CDP-CX455SECTION 1SERVICE 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.TABLE OF CONTENTS1. SERVICE NOTE 32. GENERAL 63. DISASSEMBLY 73-1. Case 83-2. MAIN Board 83-3. TRANS Board 93-4. Front Panel Assembly 93-5. JOG Board, DISP Board, KEYBOARD Board103-6. Cover (PT), Table (400) Assembly 113-7. LED Board, Guide (Door)113-8. DOOR SW Board 123-9. Base (Door Driving) Assembly 133-10.Pop-up Assembly 133-11.D.MOTOR Board, Motor Assembly (Door) (M603) 143-12.T.SENS Board, Holder (Table Sensor 400) 143-13.D.SENS (OUT) Board, D.SENS (IN) Board 153-14.Back Panel Section 153-15.CD Mechanism, Magnet Assembly 163-16.LOADING SW Board, LOCK SW Board 173-17.CDM Assembly 183-18.Motor Assembly (Table) (M601),Motor Assembly (Loading) (M602) 183-19.BU Holder 193-20.BD Board, Optical Pick-up (KSM-213BFN) 194. TEST MODE 205. ADJUSTMENTS 256. DIAGRAMS 296-1. Circuit Boards Location 296-2. Block Diagrams 306-3. Printed Wiring Board BD Board 326-4. Schematic Diagram BD Board 336-5. Printed Wiring Board MAIN Board 346-6. Schematic Diagram MAIN Board (1/2) 356-7. Schematic Diagram MAIN Board (2/2) 366-8. Printed Wiring Board Sensor Section 376-9. Schematic Diagram Sensor Section 376-10.Printed Wiring Board Display Section 386-11.Schematic Diagram Display Section 396-12.Printed Wiring Board JOG Board 406-13.Schematic Diagram JOG Board 416-14.Printed Wiring Board Power Section 426-15.Schematic Diagram Power Section 436-16.IC Block Diagrams 446-17.IC Pin Function Descriptions 467. EXPLODED VIEWS 507-1. Case Section 507-2. Chassis Section 1 517-3. Chassis Section 2 527-4. Front Panel Section 537-5. Mechanism Section 1 (CDM62-K1BD46A) 547-6. Mechanism Section 2 (CDM62-K1BD46A) 557-7. Mechanism Section 3 (CDM62-K1BD46A) 567-8. Mechanism Section 4 (CDM62-K1BD46A) 577-9. Optical Pick-up Section (BU-K1BD46A) 588. ELECTRICAL PARTS LIST594CDP-CX455CD-TEXT TEST DISCThis unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.The CD-TEXT TEST DISC (TGCS-313:J-2501-126-A) is used for checking the display.To check, perform the following procedure.Checking Method:1.Turn ON the power, set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck thedisc.2.The following will be displayed on the fluorescent indicator tube. (The display switches each time the DISPLAY button is pressed.)Display : CD TEXT Test Disc (Album Title)3.Press the button and play back the disc.4.The following will be displayed on the fluorescent indicator tube. (If nothing is displayed, press the DISPLAY button.)Display : 1kHz/0 dB/ L&R5.Rotate l AMS L knob to switch the track. The text data of each track will be displayed.For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC Text Data Contents” and “Table 2 : CD-TEXT TEST DISC Recorded Contents and Display”.Restrictions in CD-TEXT DisplayIn this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For details,refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.Table 1 : CD-TEXT TEST DISC Text Data Contents (TRACKS No. 1 to 41:Normal Characters)123456789101112131415161718192021TRACKNo.Displayed Contents2223242526272829303132333435363738394041TRACKNo.Displayed Contents1kHz/0dB/L&R20Hz/0dB/L&R40Hz/0dB/L&R100Hz/0dB/L&R200Hz/0dB/L&R500Hz/0dB/L&R1kHz/0dB/L&R5kHz/0dB/L&R7kHz/0dB/L&R10kHz/0dB/L&R16kHz/0dB/L&R18kHz/0dB/L&R20kHz/0dB/L&R1kHz/0dB/L&R1kHz/-1dB/L&R1kHz/-3dB/L&R1kHz/-6dB/L&R1kHz/-10dB/L&R1kHz/-20dB/L&R1kHz/-60dB/L&R1kHz/-80dB/L&R1kHz/-90dB/L&RInfinity Zero w/o emphasis/L&RInfinity Zero with emphasis/L&R400Hz+7kHz(4:1)/0dB/L&R400Hz+7kHz(4:1)/-10dB/L&R19kHz+20kHz(1:1)/0dB/L&R19kHz+20kHz(1:1)/-10dB/L&R100Hz/0dB/L*1kHz/0dB/L*10kHz/0dB/L*20kHz/0dB/L*100Hz/0dB/R*1kHz/0dB/R*10kHz/0dB/R*20kHz/0dB/R*100Hz Squere Wave/L&R1kHz Squere Wave/L&R1kHz w/emphasis/-0.37dB/L&R5kHz w/emphasis/-4.53dB/L&R16kHz w/emphasis/-9.04dB/L&RNOTE : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.5CDP-CX455TRACKNo.Recorded contentsDisplayN All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the sameX Y Z _ (58N All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the same are displayed without “/”N All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the sameN All the sametoN All the same*4243444546474849505152535455565758596061626364656667to99! ” # $ %& (21h to 27h)1kHz 0dB L&R( )+ , . /(28h to 2Fh)0 1 2 3 4 5 6 7(30h to 37h)8 9 : ; ?(38h to 3Fh)A B C D E F G(40h to 47h)H I J K L MNO(48h to 4Fh)P QR S T U VW(50h to 57h)X Y Z _(58h to 5Fh)a b c d e f g(60h to 67h)h i j k l m n o(68h to 6Fh)p q r s t u v w(70h to 77h)x y z I (78h to 7Fh)i (A0h to A7h) 8859-1C PR(A8h to AFh)23 (B0h to B7h)1(B8h to BFh) (C0h to C7h) (C8h to CFh)D (D0h to D7h) Y(D8h to DFh) (E0h to E7h) (E8h to EFh) (F0h to F7h) y(F8h to FFh)No.66No.67 toNo.99141234141234Table 2: CD-TEXT TEST DISC Recorded Contents and Display(In this unit, some special characters cannot be displayed. This is no a fault.)6CDP-CX455LOCATION OF PARTS AND CONTROLSSECTION 2GENERALFront Panel1 1/u (power) button2 STANDBY indicator3 Display window4 CONTINUE button5 SHUFFLE button6 PROGRAM button7 REPEAT button8 DISPLAY button9 Front coverq; OPEN/CLOSE buttonqa DISC EJECT buttonqs HISTORY button and indicatorqd MENU/NO buttonqf +100 buttonqg YES buttonqh DISC/ALBUM/CHARACTER/PUSH ENTER knob and buttonqj CHECK buttonqk CLEAR buttonql NAME SEARCH buttonw; ALBUM SELECT button and indicatorwa FADER buttonws X-FADE buttonwd NO DELAY buttonwf MEGA CONTROL button and indicatorwg l AMS L /PUSH ENTER knob and buttonwh p (stop) buttonwj (play) button and indicatorwk P (pause) button and indicatorwl ARTIST MODE button and indicatore; TOP ARTIST 4 button and indicatorea TOP ARTIST 3 button and indicatores TOP ARTIST 2 button and indicatored TOP ARTIST 1 button and indicatoref TIME buttoneg TOP ARTIST 8 button and indicatoreh TOP ARTIST 7 button and indicatorej TOP ARTIST 6 button and indicatorek TOP ARTIST 5 button and indicatorel KEYBOARD jackr; TIMER OFF/PLAY switch4edwles765eae;ekelefejeheg9q;qaqsqdqfqg8qhqjw;qk qlwawgwfws wdwkwjwh231r;7CDP-CX455SECTION 3DISASSEMBLYMAIN BOARDSETJOG BOARD,DISP BOARD,KEYBOARD BOARDFRONT PANEL ASSEMBLYCASELED BOARD,GUIDE (DOOR)COVER (PT), TABLE (400) ASSEMBLYBASE (DOOR DRIVING) ASSEMBLYD. MOTOR BOARD,MOTOR ASSEMBLY (DOOR) (M603)BACK PANEL SECTIONTRANS BOARDCD MECHANISM,MAGNET ASSEMBLYDOOR SW BOARDPOP-UP ASSEMBLYD. SENS (OUT) BOARD, D. SENS (IN) BOARDT. SENS BOARD, HOLDER (TABLE SENSOR 400)CDM ASSEMBLYBU HOLDERLOADING SW BOARD, LOCK SW BOARDBD BOARD,OPTICAL PICK-UP (KSM-213BFN)MOTOR ASSEMBLY (TABLE) (M601), MOTOR ASSEMBLY (LOADING) (M602)8CDP-CX455Note : Follow the disassembly procedure in the numerical order given.3-1. Case2 two screws(case 3 screw) 3 two screws(case 3 screw) 1 three screws (case 3 screw)4 two screws(case 3 screw) 5 caseqs two screws (BVTP 3 8)qg bracket (R)2 connector (CN901)1 three connectors (CN503, CN801, CN903)3 connector (CNP902)6 connector (CNP504)5 flat type wire (CN502)(17 core)4 two connectors (CN505, CN506)7 three screws (BVTP 3 8)8 four screws (BVTP 3 8)0 MAIN board 9 flat type wire (CN501)(31 core)qa two screws (BVTP 3 8)qf bracket (L)qd3-2. MAIN Board9CDP-CX4555 screw (BVTP 3 8)6 bracket (PT)4 connector (CN601)1 connector (CN991)3 connector (CN603)2 connector (CN602)AA7 two screws (PTTWH 3 6)8 TRANS board23 connector (CNP503)5 two screws (BVTP 3 8)4 screw (BVTP 3 8)6 three screws (BVTP 3 8)7 remove the claw8 remove the claw9 front panel assembly13-3. TRANS Board3-4. Front Panel Assembly10CDP-CX4553-5. JOG Board, DISP Board, KEYBOARD Boardqs remove two solderings.1 knob (AMS)2 knob (disc)3 four screws (BVTP 2.6 x 8)4 bracket (case) assembly5 eleven screws (BVTP 2.6 x 8)7 eight screws (BVTP 2.6 x 8)qa two screws (BVTP 2.6 x 8)8 DISP board9 flat type wire (17 core)0 knob (timer)6 JOG boardqf KEYBOARD boardqd bracket (keyboard)11CDP-CX4553 screw (BVTP 3 16)4 guide (door)5 table (400) assembly6 washerNote during re-assemblingWhen re-assembling, align the positions as shown.1 two screws (BVTP 3 8)2 cover (PT)1 screw (BVTP 3 x 8)6 window (internal illumination)2 LED board3547 guide (door)3-6. Cover (PT), Table (400) Assembly3-7. LED Board, Guide (Door)12CDP-CX4555 two screws (BVTP 2.6 8)3 screw (PTPWH 2.6 8)1 screw (PTPWH 2.6 8)1 Move the slider (pop-up) and the lever (pu joint) fully in the direction of the arrow A.2 Install the gear (cam) in the direction shown in the illustration and rotate it fully in the direction of the arrow B.3 When the gear (cam) happens to go too deep, return it to the original position in the direction of the arrow C.4 gear (B)2 gear (cam)6 DOOR SW board CBAlever (pu joint)two rotary switchesslider (pop-up)gear (cam)DOOR SW boardThe levers of the two rotary switches on the D. SW boardare shown in the illustration below.Precaution during the gear (cam) installation3-8. DOOR SW Board13CDP-CX4553-9. Base (Door Driving) Assembly1 connector (CN602)2 three screws (BVTP 3 8)3 cover (table)4 door assembly5 two screws (BVTP 3 8)6 eight screws (BVTP 3 8)7 base (door driving) assembly1 screw (PTPWH 3 6)2 step screw3 pop-up assembly3-10. Pop-up Assembly14CDP-CX4551 belt3 D.MOTOR board5 door motor assembly4 remove two solderings.2 two screws (BVTP 3 8)(M603)1 four screws (PTPWH 3 6) 4 T.SENS board5 screw(PTTWH 3 6) 2 connector (CN83)3 two connectors (CN81,CN82)6 three claws7 holder (table sensor 400)3-11. D.MOTOR Board, Motor Assembly (Door) (M603)3-12. T.SENS Board, Holder (Table Sensor 400)