Sony-DVPCX985V-cd-sm 维修电路原理图.pdf

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1、SERVICE MANUALCD/DVD PLAYERUS ModelCanadian ModelSPECIFICATIONSDVP-CX985VVer 1.1 2004.099-961-042-02Sony Corporation2004I05-1Audio Group 2004.09Published by Sony Engineering CorporationSystemLaser: Semiconductor laser = 780 nm for CD = 650 nm for SA-CD and DVDEmission duration: continuousSignal form

2、at system: NTSCAudio characteristicsFrequency response: DVD VIDEO (PCM 96 kHz): 2 Hz to 44 kHz (44 kHz: 2 dB 1 dB), Super Audio CD: 2 Hz to 100 kHz (50 kHz: 3 dB 1 dB), CD: 2 Hz to 20 kHz (0.5 dB)Signal-to-noise ratio (S/N ratio): 115 dB (LINE OUT AUDIO L/R 1/2 jacks only)Harmonic distortion: 0.003

3、%Dynamic range: DVD VIDEO/Super Audio CD: 103 dB, CD: 99 dBWow and flutter: Less than detected value (0.001% W PEAK)Outputs(Jack name: Jack type/Output level/Load impedance)LINE OUT AUDIO L/R 1/2: Phono jack/2 Vrms/10 kilohmsDIGITAL OUT (OPTICAL): Optical output jack/18 dBm (wave length: 660 nm)DIGI

4、TAL OUT (COAXIAL): Phono jack/0.5 Vp-p/75 ohms5.1CH OUTPUT: Phono jack/2 Vrms/10 kilohmsCOMPONENT VIDEO OUT(Y, PB/CB, PR/CR): Phono jack/Y: 1.0 Vp-p/PB/CB, PR/CR: 0.7 Vp-p/75 ohmsLINE OUT VIDEO 1/2: Phono jack/1.0 Vp-p/75 ohmsS VIDEO OUPUT 1/2: 4-pin mini DIN/Y: 1.0 Vp-p/C: 0.286 Vp-p /75 ohmsGenera

5、lPower requirements: 120 V AC, 60 HzPower consumption: 20 WDimensions (approx.): 430 189 545 mm (17 7 1/2 211/2 in.) (width/height/depth) incl. projecting partsMass (approx.): 8.6 kg (18 lb 15 oz)Operating temperature: 5C to 35C (41F to 95F)Operating humidity: 25 % to 80 %Supplied accessoriesSpecifi

6、cations and design are subject to change without notice. Audio/video cord (pinplug 3 y pinplug 3) (1) Remote commander (remote) (1) Size AA (R6) batteries (2)Model Name Using Similar MechanismNEWCD/DVD Mechanism TypeCDM62-DVBU26Base Unit NameDVBU26Optical Pick-up NameKHM-290AAAENERGY STARR is a U.S.

7、 registered mark. As an ENERGY STARR Partner, Sony Corporation has determined that this product meets the ENERGY STARR guidelines for energy efficiency.RadioFans.CN 收音机爱 好者资料库2DVP-CX985VNote: Refer to the “5. TEST MODE” (page 23) for another self-diagnosisfunction.Self-diagnosis Function (When lette

8、rs/numbers appear in the display)When the self-diagnosis function is activated to prevent the player from malfunctioning, a five-character service number (e.g., C 13 50) with a combination of a letter and four digits appears on the screen and the front panel display. In this case, check the followin

9、g table.First three characters of the service numberCause and/or corrective actionC 13The disc is dirty.,Clean the disc with a soft clothC 31The disc is not inserted correctly.,Re-insert the disc correctly.C 32The front cover automatically opens and the player enters standby mode.,Check that there i

10、s nothing wrong inside the rotary table, such as a fallen disc. After you have checked the inside of the rotary table and resolved any possible problems, press H.E XX(xx is a number)To prevent a malfunction, the player has performed the self-diagnosis function.,Contact your nearest Sony dealer or lo

11、cal authorized Sony service facility and give the 5-character service number.Example: E 61 10C:13:50SELF DIAGNOSIS FUNCTIONRadioFans.CN 收音机爱 好者资料库3DVP-CX985VCAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure

12、.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-aged by heat.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur-ing repairing. Do not touch the soldering iron on th

13、e same conductor of thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety check before releasing the set to the customer:Check the antenna terminals,

14、metal trim, “metallized” knobs,screws, and all other exposed metal parts for AC leakage.Check leakage as described below.LEAKAGE TESTThe 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

15、(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 suitab

16、le 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-63Trd are examples of a pas-sive VOM that is suitable. Nearly all b

17、attery operated digitalmultimeters that have a 2 V AC range are suitable. (See Fig. A)Fig. A.Using an AC voltmeter to check AC leakage.1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES

18、 DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PICES SONY DONT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLI

19、NE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-

20、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 40 C higher thanordinar

21、y 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 350 C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long,

22、so be careful! Strong viscosityUnleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridges oc-cur 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

23、 solder.4DVP-CX985VThis Player Can Play the Following Discs“DVD VIDEO” and “DVD-RW” are trademarks.Region codeYour player has a region code printed on the back of the unit and will only play DVD VIDEOs (playback only) labeled with identical region codes. This system is used to protect copyrights.DVD

24、 VIDEOs labeled will also play on this player.If you try to play any other DVD VIDEO, the message “Playback prohibited by area limitations.” will appear on the TV screen. Depending on the DVD VIDEO, no region code indication may be labeled even though playing the DVD VIDEO is prohibited by area rest

25、rictions.Format of discsDVD VIDEODVD-RWSuper Audio CD VIDEO CDMusic CDALLXRegion codeExample of discs that the player cannot playThe player cannot play the following discs:All CD-ROMs (including PHOTO CDs)/CD-Rs/CD-RWs other than those recorded in the following formats:music CD formatvideo CD format

26、MP3 format that conforms to ISO9660*Level 1/Level 2, or its extended format, JolietData part of CD-ExtrasDVD-ROMsDVD Audios* A logical format of files and folders on CD-ROMs defined by ISO (International Standards Organization).Also, the player cannot play the following discs:A DVD VIDEO with a diff

27、erent region code.A disc recorded in a color system other than NTSC, such as PAL or SECAM (this player conforms to the NTSC color system).A disc that has a non-standard shape (e.g., card, heart).A disc with paper or stickers on it.A disc that has the adhesive of cellophane tape or a sticker still le

28、ft on it.NotesNote about DVD-RWs/DVD-Rs, DVD+RWs/DVD+Rs, or CD-Rs/CD-RWs.Some DVD-RWs/DVD-Rs, DVD+RWs/DVD+Rs, or CD-Rs/CD-RWs cannot be played on this player due to the recording quality or physical condition of the disc, or the characteristics of the recording device and authoring software. Also, i

29、mages in DVD-RWs with CPRM* protection may not be played if they contain a copy protection signal. “Copyright lock” appears on the screen. For more information, see the operating instructions for the recording device.Note that discs created in the Packet Write format cannot be played.* CPRM (Content

30、 Protection for Recordable Media) is a coding technology that protects copyright for images.Music discs encoded with copyright protection technologiesThis product is designed to playback discs that conform to the Compact Disc (CD) standard. Recently, various music discs encoded with copyright protec

31、tion technologies are marketed by some record companies. Please be aware that among those discs, there are some that do not conform to the CD standard and may not be playable by this product. Note on playback operations of DVDs and VIDEO CDsSome playback operations of DVDs and VIDEO CDs may be inten

32、tionally set by software producers. Since this player plays DVDs and VIDEO CDs according to the disc contents the software producers designed, some playback features may not be available. Also, refer to the instructions supplied with the DVDs or VIDEO CDs.CopyrightsThis product incorporates copyrigh

33、t protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision. Reverse engineerin

34、g or disassembly is prohibited.5DVP-CX985VSELF DIAGNOSIS FUNCTION.21.SERVICING NOTES.62.GENERAL. 103.DISASSEMBLY3-1.Disassembly Flow . 113-2.Case . 123-3.MB Board . 123-4.AV Board. 133-5.Bracket (L)/(R). 133-6.Front Panel Section . 143-7.Cover (PT)/(CDM). 143-8.DVBU26 Assy . 153-9.Power Block . 153-

35、10. Table (400) Assy . 163-11. Door Block, Base (Door) Assy . 163-12. DC Motor (Door) (M603). 173-13. Holder (Table Sensor 400) . 173-14. D. SENS OUT Board, D. SENS IN Board. 183-15. Pop-up (400) Assy. 183-16. Door SW Board. 193-17. Lock SW Board, Loading SW Board . 203-18. CD/DVD Mechanism Deck Blo

36、ck(CDM62-DVBU26) . 213-19. Motor (400) Assy (Loading) (M602)/(Table) (M601),Loading Motor Board . 213-20. Optical Pick-up (KHM-290AAA) . 224.TEST MODE. 235.MECHANICAL ADJUSTMENTS. 456.ELECTRICAL ADJUSTMENTS. 467.DIAGRAMS7-1.Block Diagram RF Section . 507-2.Block Diagram SERVO/CHANGER Section . 517-3

37、.Block Diagram AUDIO Section . 527-4.Block Diagram VIDEO Section . 537-5.Block Diagram PANEL/POWER SUPPLY Section . 547-6.Note for Printed Wiring Boards andSchematic Diagrams . 557-7.Printed Wiring Board MB Board (Component Side) . 567-8.Printed Wiring Board MB Board (Conductor Side) . 577-9.Schemat

38、ic Diagram MB Board (1/14) . 587-10. Schematic Diagram MB Board (2/14) . 597-11. Schematic Diagram MB Board (3/14) . 607-12. Schematic Diagram MB Board (4/14) . 617-13. Schematic Diagram MB Board (5/14) . 627-14. Schematic Diagram MB Board (6/14) . 637-15. Schematic Diagram MB Board (7/14) . 647-16.

39、 Schematic Diagram MB Board (8/14) . 657-17. Schematic Diagram MB Board (9/14) . 667-18. Schematic Diagram MB Board (10/14) . 677-19. Schematic Diagram MB Board (11/14) . 687-20. Schematic Diagram MB Board (12/14) . 697-21. Schematic Diagram MB Board (13/14) . 707-22. Schematic Diagram MB Board (14/

40、14) . 717-23. Printed Wiring Board DRIVER Board . 72TABLE OF CONTENTS7-24. Schematic Diagram DRIVER Board . 737-25. Printed Wiring Boards MOTOR/SWITCH Section . 747-26. Schematic Diagram MOTOR/SWITCH Section . 757-27. Printed Wiring Boards SENSOR Section . 767-28. Schematic Diagram SENSOR Section .

41、777-29. Printed Wiring Board AV Board (Component Side) . 787-30. Printed Wiring Board AV Board (Conductor Side) . 797-31. Printed Wiring Board RS-232C Board . 807-32. Schematic Diagram AV (1/3)/RS-232C Boards . 817-33. Schematic Diagram AV Board (2/3) . 827-34. Schematic Diagram AV Board (3/3) . 837

42、-35. Printed Wiring Board PANEL-L Board (Component Side) . 847-36. Printed Wiring Board PANEL-L Board (Conductor Side) . 857-37. Schematic Diagram PANEL-L Board (1/2) . 867-38. Schematic Diagram PANEL-L Board (2/2) . 877-39. Printed Wiring Boards PANEL Section . 887-40. Schematic Diagram PANEL Secti

43、on . 897-41. Printed Wiring Board POWER Board . 907-42. Schematic Diagram POWER Board . 917-43. IC Pin Function Description .1008.EXPLODED VIEWS8-1.Overall Section.1248-2.Front Panel Section .1258-3.Power Block Section.1268-4.Table Section .1278-5.Chassis Section .1288-6.Base (Door) Section.1298-7.C

44、D/DVD Mechanism Deck Section-1(CDM62-DVBU26) .1308-8.CD/DVD Mechanism Deck Section-2(CDM62-DVBU26) .1318-9.CD/DVD Mechanism Deck Section-3(CDM62-DVBU26) .1328-10. CD/DVD Mechanism Deck Section-4(CDM62-DVBU26) .1338-11. Optical Pick-up Section (DVBU26) .1349.ELECTRICAL PARTS LIST.1356DVP-CX985VSECTIO

45、N 1SERVICING NOTESThe laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in

46、 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 this model is concentrated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-up b

47、lock. Therefore, when checking the laser diode emis-sion, observe from more than 30 cm away from the objective lens.NOTE OF REPLACING THE MB BOARDWhen replacing the MB board, since the adjustment value is notset up correctly, “Drive Auto Adjustment” cant be performed.In this case, initialize Memory

48、in the following procedures.Procedure:1.Set the test mode. (See page 23)2.Press the 2 key of the remote commander, and set the “DRIVEMANUAL OPERATION”. (See page 29)3.Press the 6 key of the remote commander, and set the “2-6,Memory Check”. (See page 32)4.Press the CLEAR key of the remote commander,

49、and initial-ize Memory.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT POWER Board (Conductor Side) CN201131CHECK OF POWER BOARD WITH THE POWER ONIt is possible to analyze the defect with only POWER board powerON.Procedure:1.Set to power OFF state.2.Remove the connector from CN201 on the POW

50、ER board.3.Short between CN201 pin 1 (P-CONT) and CN201 pin qa(EVER+3.3V) on the POWER board.4.Turn the power ON.5.Confirm that the voltage value of CN201 each pin on thePOWER board satisfy following value .CN201 PinVoltage Valuepin 2 (EVER11V)11Vpin 3 (SW11V)11Vpin 6, 7 (SW+11V)+11Vpin 8 (SW+3.3V)+