Sony-CDPCX300-cd-sm 维修电路原理图.pdf

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1、 MICROFILMCDP-CX300/CX350/CX691US ModelCDP-CX300/CX350/CX691Canadian ModelCDP-CX300/CX350AEP ModelUK ModelAustralian ModelCDP-CX350SPECIFICATIONSSERVICE MANUALCOMPACT DISC PLAYERModel Name Using Similar MechanismNEWCD Mechanism TypeCDM54-KIBD35EBase Unit TypeKSM-213BFN/M-NPOptical Pick-up TypeKSS-21

2、3BFNPhoto; CDP-CX350RadioFans.CN 收音机爱 好者资料库 2 CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a

3、 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 o

4、r 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 LASER PROD-UCT MARKING is located onthe rear exterior.The followingcaution label islocated inside ofthe unit.PARTS No.MODEL

5、MODEL IDENTIFICATION BACK PANEL 4-215-964-04-215-964-14-215-964-24-215-964-34-215-964-44-215-964-54-215-964-7CX300 : USCX300 : CNDCX350 : USCX350 : CNDCX350 : AEP, UKCX350 : AUSCX691 : USSAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAG

6、RAMS 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 !SUR LES DIAGRAMMES SCHMATIQUES

7、 ET LA LISTEDES PICES 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 follow-ing safety checks b

8、efore 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 expos

9、ed metal part having areturn to chassis, must not exceed 0.5 mA (500 microampers). Leak-age 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 A

10、C milliammeter. 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.The Simpson 250 and Sanwa SH-

11、63Trd are examples of a pas-sive VOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. 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 : Cana

12、dian modelAUS : Australian modelRadioFans.CN 收音机爱 好者资料库 3 TABLE OF CONTENTS1. SERVICING NOTE. 32. GENERAL. 63. DISASSEMBLY3-1. Front Panel Assembly . 73-2. Table (300) Assembly . 73-3. Base (Door, Gear) Assembly . 83-4. Pop-up Assembly . 83-5. Mechanism Deck . 93-6. Base Unit . 94. SERVICE MODE. 105

13、. TEST MODE. 145-1. ADJ Mode . 145-2. Key and Display Check Mode . 146. ADJUSTMENTS6-1. Mechanical Adjustments. 156-2. Electrical Adjustment. 177. DIAGRAMS7-1. Circuit Boards Location. 207-2. Block Diagrams BD Section. 21 Main Section. 237-3. Schematic Diagram BD Section .277-4. Printed Wiring Board

14、 BD Section . 297-5. Printed Wiring Board Main Section . 317-6. Schematic Diagram Main (1/2) Section . 337-7. Schematic Diagram Main (2/2) Section . 357-8. Printed Wiring Board T. Sens Section . 377-9. Printed Wiring Board T. Sens (In) Section .377-10. Printed Wiring Board D. Sens (Out) Section . 38

15、7-11. Schematic Diagram Sensor Section . 387-12. Schematic Diagram Display Section .397-13. Printed Wiring Board Display Section . 417-14. Schematic Diagram Jog Section . 437-15. Printed Wiring Board Jog Section .447-16. Schematic Diagram Power Section . 477-17. Printed Wiring Board Power Section .

16、487-18. Schematic Diagram Jack Section . 497-19. Printed Wiring Board Jack Section . 507-20. Schematic Diagram Sensor/Motor Section . 537-21. Printed Wiring Board Sensor/Motor Section . 547-22. IC Block Diagrams. 557-23. IC Pin Functions. 588. EXPLODED VIEWS8-1. Case Section. 608-2. Chassis Section

17、.618-3. Front Panel Section . 628-4. Mechanism Section 1 (CDM54-K1BD35E).638-5. Mechanism Section 2 (CDM54-K1BD35E).648-6. Mechanism Section 3 (CDM54-K1BD35E).658-7. Opeical Pick-up Section (KSM-213BFN/M-NP) .669. ELECTRICAL PARTS LIST. 67SECTION 1SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UP

18、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 t

19、he 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 bl

20、ock. Therefore, when checking the laser diode emission, ob-serve 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 cur

21、ve waveform is output three times. 4 CD-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.Checki

22、ng 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 TIME/TEXT button is pressed.)Displ

23、ay : 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 TIME/TEXT button.)Display : 1kHz/0 dB/ L&R5. Rotate and knob to switch the track. The text data of each track will

24、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

25、 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 Contents2223242526272829303132333

26、435363738394041TRACKNo.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&R1kH

27、z/-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 Squer Wave/L&R1k

28、Hz Squer 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. 5 TRACKNo.Recorded contentsDisplayN All the sameN All the sameN All the sameN All the

29、 sameN All the sameN All the sameN All the sameX Y Z _ (58N All the sameN All the sameN All the samex y z I (78 i (A0 is not displayed(A8 C PRare not displayed (B023 are not displayed (B81 are not displayedN All the sameN All the sameN All the same Y (D8N All the sameN All the sameo (F0N All the sam

30、eN 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

31、)a b c d e f g(60h to 57h)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 FFh) (F0h to F7h) y(F8h to FFh)No.66No.67 toNo.991412341412

32、34Table 2: CD-TEXT TEST DISC Recorded Contents and Display(In this unit, some special characters cannot be displayed. This is no a fault.) 6 LOCATION OF PARTS AND CONTROLS11/u (power) button2STANDBY indicator3Display window4CONTINUE button5SHUFFLE button6PROGRAM button7REPEAT button8TIME/TEXT button

33、9Front cover10 AMS /PUSH ENTER knob and button11 MENU/NO button12 +100 button13 YES button14 DISC/CHARACTER/PUSH ENTER knob and button15 EASY PLAY button and indicator16 MEMO/SEARCH button17 CHECK button18 CLEAR button19 MEGA CONTROL button and indicator20 X-FADE buttonSECTION 2GENERALFront Panel21

34、NO DELAY button22 FADER button23 p (stop)/DISC EJECT button24 P (pause) button and indicator25 (play) button and indicator26 OPEN/CLOSE button27 HIT LIST button and indicator28 GROUP 4 button and indicator29 GROUP 3 button and indicator30 GROUP 2 button and indicator31 GROUP 1 button and indicator32

35、 GROUP FILE button33 GROUP 8 button and indicator34 GROUP 7 button and indicator35 GROUP 6 button and indicator36 GROUP 5 button and indicator37 IR Repeater window (CDP-CX350)38 KEYBOARD jack39 TIMER OFF/PLAY switch* AMS is abbreviation for Automatic Music Sensor.34 5 6 7 891011121215 16 17 18131423

36、24252638393719 20 21 2231 30 29 28 2736 35 34 33 32Photo: CDP-CX350 7 SECTION 3DISASSEMBLYNote : Follow the disassembly procedure in the numerical order given.3-1. FRONT PANEL ASSEMBLY3-2. TABLE (300) ASSEMBLY1 Two screws (BVTP 3x8)3 Two screw (BVTP 3x8)6 Flat tayp wire(CN701)2 Three screws (BVTP 3x

37、8)7 Front panel assembly5 Remove the claw4 Remove the clawLED board 0 Guide (door.T)1 CD door assembly3 Two screws (BVTP 3x8)4 Screw (BVTP 3x8)5 Bracket (F.W.)7 Screw (BVTP 3x8)9 Screw (BVTP 3x16)6 LED board8 Window! Table (300)assembly2 Connector (CN)504)! Two washer 8 3-3. BASE (DOOR, GEAR) ASSEMB

38、LY3-4. POP-UP ASSEMBLY1 Two screws (BVTP 3x8)2 Cover(front)4 Guide (Door.B)6 Bracket (Guide.B)3 Three screws (BVTP 3x8)0 Two screws (BVTP 3x8) ! Three screws (BVTP 3x8)! Base (door.gear) assembly5 Four screws (BVTP 3x8)8 Cover(P.T.)9 Connector (CN508)7 Two screws (BVTP 3x8)1 Step screw3 Pop-up assem

39、bly2 Screw (PTPWH3x6) 9 3-5. BACK PANEL ASSEMBLY3-6. CDM ASSEMBLY0 Back panel4 Connector (CN84)1 Connector (CN991)9 Guide (main)! Main board2 Connector (CN903)3 Connector (CN901)7 Two screws (BVTP 3x8)! Two screws (BVTP 3x8)! Two screws (BVTP 3x8)8 Two screws (BVTP 3x8)6 Two screws (BVTP 3x8)5 Three

40、 screws (BVTP 3x8)5 Screw (BVTP 3x8)8 Power board4 Screw 6 Two screws (BVTP 3x8)2 Two screws (BVTP 3x8)9 Three screws (BVTP 3x8)1 Three screws (BVTP 3x8)3 Three screws (BVTP 3x8)7 Four screws (BVTP 3x8)0 Bracket(top)! CDM assembly 10 ALL ERASEThis mode is used for clearing information such as the ti

41、tle memo.Do not execute if information such as the title memo is not to beerased.Procedure:While pressing the CLEAR button with the power OFF, press the1/u button and turn on the power.The fluorescent display tube displays “ALL ERASE” and all memo-ries will be cleared.AGING MODE Mode which repeatedl

42、y changes and plays back discs automati-cally in the unit. It will repeat aging as long as no errors occur. If an error occurs during aging, it will stop all servos, motors, etc.instantaneously, display the error number, and stop operations.However, the stopping conditions differ according to whethe

43、r theunit is equipped with the “self-protection function during errors”described later.The function serves to maintain the state of the unit when errorsoccur.SECTION 4SERVICE MODEMode nameALL ERASEAGING MODELOARDING AGING MODETABLE AGING MODEDOOR POP UP AGING MODETABLE LOTATION MODETITLE MEMO SHIFT

44、MODEMODEL NAME DISPLAYMICROPROCESSOR VERSION DISPLAYALL LIT MODEMECHANISM ADJUSTMENT MODESHIPMENT MODETITLE MEMO RECORDING CHECK MODEPower supply stateOFFONONONONONONONONONONONONButton operation CLEAR + 1 GROUP 1 + OPEN/CLOSE + +100 GROUP 2 + OPEN/CLOSE + +100 GROUP 3 + OPEN/CLOSE + +100 GROUP 4 + O

45、PEN/CLOSE + +100 GROUP 5 + OPEN/CLOSE + +100 GROUP 7 + OPEN/CLOSE + +100 GROUP 1 + + +100 GROUP 2 + + +100 GROUP 3 + + +100 GROUP 4 + + +100 GROUP 5 + + +100 GROUP 6 + + +100RemarksNote 1Used in adjustmentNote 1Note 1Note 1Do not execute unless with a proper reason, otherwise the memory of the title

46、 memo recorded by the customer will be erased.The title memo recording check mode is not required for servicing. Do not execute.SPECIAL FUNCTIONThis unit is provided with several service modes.Details are shown in the following table.1. Disc change2. Load in3. TOC read4. Access of last track5. 3 sec

47、ond playback6. Access of first track7. 3 second playback8. Load out9. FRONT COVER open10. FRONT COVER close1. No. 602. No. 2403. No. 1804. No. 3005. No. 120Sequence of Aging Mode$Order of Disc Change (1 cycle takes 3 minutes)$ 11 Aging Procedure1. Turn ON the power of the unit. Press the OPEN/CLOSE

48、andopen the front cover.2. Change the COMMAND MODE switch (S901) on set to CD1 .3. Press the AGING START button of the remote commander foraging mode (J-2501-123-A).4. When the disc set mode is set, the and P LEDs blink.5. Rotate the DISC/CHARACTER dial. The slits (No. 60, 120,180, 240, 300) for set

49、ting the discs will come forward. Insert thediscs into these slits. Do not set the discs in other slits.6. Set whether the self-protection function during errors is equippedwith the unit. Press the REPEAT button. If “REPEAT” is dis-played on the Fluorescent indicator tube, it means the functionis pr

50、ovided. If “REPEAT” is not displayed, it means the functionis not provided.Error Display7. Press the button.8. The LED blinks, the aging mode is set, and aging is started.9. The aging cycle lasts 3 minutes. If errors occur during aging, theerror number will be displayed on the Fluorescent indicator