JVC-XVN312S-cd-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LIMITEDNo.XA0162004/3DVD VIDEO PLAYERXA01620043XV-N210B, XV-N212S, XV-N310B, XV-N312STABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . . . . 1-32SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . 1-84ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-155TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . . . 1-18Area SuffixJ - U.S.A.C - CanadaThis illustration is XV-N210B for U.S.A.213546879010+10DISPLAY/DIMMERSOUNDEFFECTANGLETOP MENUSLIDE EFFECTTHUMBNAIL/LISTMENUSET UPPREVIOUSSELECTCLEARNEXTI/PON SCREENENTERSUB TITLEAUDIOZOOMTITLE/GROUPRETURNCANCELSTANDBY/ONSLOWV I D E OExcept J/C o

5、f XV-N210B,XV-N212SRadioFans.CN 收音机爱 好者资料库1-2 (No.XA016)SPECIFICATION(For version J of XV-N310B.) Specifications and appearance are subject to change without prior notice. Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are trademarkes of Dolby Laboratories. DTS and

6、 DTS 2.0+Digital Out are trademarks of Digital Theater Systems, Inc. USE OF THIS PRODUCT IN ANY MANNER THAT COMPLIES WITH THE MPEG-4 VISUAL STANDARD IS PROHIBITED, EX-CEPT FOR USE BY A CONSUMER ENGAGING IN PERSONAL AND NON-COMMERCIAL ACTIVITIES. This product incorporates copyright protection technol

7、ogy that is protected by method claims of certain U.S. patents and other in-tellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technologymust be authorized by Macrovision Corporation, and is intended for home and other limited viewin

8、g uses only unless otherwise au-thorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.GeneralReadable discsDVD VIDEO, DVD-R (Video format), DVD-RW (Video format),SVCD, Video CD, Audio CD (CD-DA),JPEG, CD-R/RW(CD-DA, SVCD, Video CD, MP3 format, JPEG,MPEG-4)Video format

9、NTSC, 480i (Interlaced scan)/480p (Progressive scan) selectableOtherPower requirementsAC 120 V, 60 HzPower consumption10.0 W (POWER ON), 2.0 W (STANDBY mode)Mass1.6 k g (3.6 lbs)Dimensions (W H D)435mm 44mm 201mm (17-3/16 inch 1-3/4 inc 7-15/16 inch)Video outputsCOMPONENT (pin jacks)Y Output: 1.0 Vp

10、-p (75 )Pb/Pr Output: 0.7Vp-p (75 )VIDEO OUT (pin jack)1.0 Vp-p (75 )S-VIDEO OUT (S jack)Y Output: 1.0 Vp-p (75 )C Output: 286 mVp-p (75 )Horizontal resolution500 lines or moreAudio outputsANALOG OUT (pin jack)2.0 Vrms (10 k)DIGITAL OUT (COAXIAL)0.5 Vp-p (75 termination)Audio characteristicsFrequenc

11、y responseCD (sampling frequency 44.1 kHz):2 Hz to 20 kHzDVD (sampling frequency 48 kHz):2 Hz to 22 kHz(4 Hz to 20 kHz for DTS and Dolby Digital bitstream signals)DVD (sampling frequency 96 kHz):2 Hz to 44 kHzDynamic range16 bit: More than 98 dB20 bit/24 bit: More than 100 dBWow and flutterUnmeasura

12、ble (less than +- 0.002%)Total harmonic distortionless than 0.009% *Notes for PX model (Check the specification indication on the rear panel.)Power requirements AC 110 V to 240 V, 50 Hz/60 HzPower consumption 11.0 W (POWER ON), 2.0 W (STANDBY mode)RadioFans.CN 收音机爱 好者资料库(No.XA016)1-3SECTION 1PRECAUT

13、ION1.1Safety Precautions(1) This design of this product contains special hardware andmany circuits and components specially for safety purpos-es. For continued protection, no changes should be madeto the original design unless authorized in writing by themanufacturer. Replacement parts must be ident

14、ical tothose used in the original circuits. Services should be per-formed by qualified personnel only.(2) Alterations of the design or circuitry of the product shouldnot be made. Any design alterations of the product shouldnot be made. Any design alterations or additions will voidthe manufacturers w

15、arranty and will further relieve themanufacture of responsibility for personal injury or propertydamage resulting therefrom.(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. These characteris-tics are often not evident from visual inspection nor can

16、 theprotection afforded by them necessarily be obtained by us-ing replacement components rated for higher voltage, watt-age, etc. Replacement parts which have these specialsafety characteristics are identified in the Parts List of Ser-vice Manual. Electrical components having such featuresare identi

17、fied by shading on the schematics and by ( ) onthe Parts List in the Service Manual. The use of a substitutereplacement which does not have the same safety charac-teristics as the recommended replacement parts shown inthe Parts List of Service Manual may create shock, fire, orother hazards.(4) The l

18、eads in the products are routed and dressed with ties,clamps, tubings, barriers and the like to be separated fromlive parts, high temperature parts, moving parts and/orsharp edges for the prevention of electric shock and firehazard. When service is required, the original lead routingand dress should

19、 be observed, and it should be confirmedthat they have been returned to normal, after reassem-bling.(5) Leakage shock hazard testing)After reassembling the product, always perform an isola-tion check on the exposed metal parts of the product (an-tenna terminals, knobs, metal cabinet, screw heads,hea

20、dphone jack, control shafts, etc.) to be sure the productis safe to operate without danger of electrical shock.Do notuse a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using aLeakage Current Tester, measure the leakage currentfrom each exposed meta

21、l parts of the cabinet, particular-ly any exposed metal part having a return path to thechassis, to a known good earth ground. Any leakage cur-rent must not exceed 0.5mA AC (r.m.s.). Alternate check methodPlug the AC line cord directly into the AC outlet. Use anAC voltmeter having, 1,000 ohms per vo

22、lt or more sensi-tivity in the following manner. Connect a 1,500 ohm 10Wresistor paralleled by a 0.15 F AC-type capacitor be-tween an exposed metal part and a known good earthground.Measure the AC voltage across the resistor with the ACvoltmeter. Move the resistor connection to each exposed metalpar

23、t, particularly any exposed metal part having a returnpath to the chassis, and measure the AC voltage acrossthe resistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Voltage measured any mustnot exceed 0.75 V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). 1.2Warning(1) Th

24、is equipment has been designed and manufactured tomeet international safety standards.(2) It is the legal responsibility of the repairer to ensure thatthese safety standards are maintained.(3) Repairs must be made in accordance with the relevantsafety standards.(4) It is essential that safety critic

25、al components are replacedby approved parts.(5) If mains voltage selector is provided, check setting for localvoltage.1.3CautionBurrs formed during molding may be left over on some partsof the chassis. Therefore, pay attention to such burrs in the case of pre-forming repair of this system.1.4Critica

26、l parts for safetyIn regard with component parts appearing on the silk-screenprinted side (parts side) of the PWB diagrams, the parts that areprinted over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by the mark nearby are critical forsafety. When replacing them, be sure t

27、o use the parts of thesame type and rating as specified by the manufacturer. (Exceptthe JC version)1-4 (No.XA016)1.5Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laserdiode in the trave

28、rse unit (optical pickup). Take care to prevent this when performing repairs.1.5.1 Grounding to prevent damage by static electricityStatic electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players. Be careful to use proper grounding in the area where re

29、pairs are being performed. (1) Ground the workbenchGround the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing thetraverse unit (optical pickup) on it.(2) Ground yourselfUse an anti-static wrist strap to release any static electricity built

30、 up in your body. (3) Handling the optical pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement opticalpickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not us

31、e a tester to check the condition of the laser diode in the optical pickup. The testers internal power source can easilydestroy the laser diode. 1.6Handling the traverse unit (optical pickup)(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (

32、2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to thereplacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too longa time when attaching it to the c

33、onnector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.1.7Precautions of the safe use of battery (Only ver. J, C) Store the battery in a place where child

34、ren cannot reach.If a child accidentally swallows the battery, consult a doctorimmediately. Do not recharge, short, disassemble or heat the battery or dispose of it in a fire.Doing any of these things may cause the battery to give off heat, crack, or start a fire. Do not leave the battery with other

35、 metallic materials.Doing this may cause the battery to give off heat, crack, or start a fire. When throwing away or saving the battery, wrap it in tape and insulate; otherwise, the battery may start to give off heat, crack, orstart a fire. Do not poke the battery with tweezers or similar tools.Doin

36、g this may cause the battery to give off heat, crack, or start a fire. Dispose of batteries in the proper manner, according to federal, state, and local regulations.(No.XA016)1-51.8Important for laser products (1) CLASS 1 LASER PRODUCT(2) DANGER : Invisible laser radiation when open and interlock fa

37、iled or defeated. Avoid direct exposure to beam.(3) CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace thecomplete Laser Unit if it malfunctions.(4) CAUTION : The compact disc player uses invisible laserradiation and is equipped with safety swi

38、tches which prevent emission of radiation when the drawer is open andthe safety interlocks have failed or are de feated. It is dangerous to defeat the safety switches.(5) CAUTION : If safety switches malfunction, the laser is ableto function.(6) CAUTION : Use of controls, adjustments or performance

39、ofprocedures other than those specified herein may result inhazardous radiation exposure.CAUTIONPlease use enough caution not to see the beam directlyor touch it in case of anadjustment or operation check.VARNINGOsynlig laserstrlning r denna del r ppnad och sprren rurkopplad. Betrakta ej strlen.VARO

40、Avattaessa ja suojalukitus ohitettaessa olet alttiina nkymt-tmlle lasersteilylle. l katso steeseen.ADVARSELUsynlig laserstrling ved bning, nr sikkerhedsafbrydere erude af funktion. Undg udsasttelse for strling.ADVARSELUsynlig laserstrling ved pning, nr sikkerhetsbryteren er avs-lott. unng utsettelse

41、 for strling.REPRODUCTION AND POSITION OF LABEL and PRINTWARNING LABEL and PRINTThe inside of a chassis1-6 (No.XA016)1.9Precautions for Service1.9.1Handling of Traverse Unit and Laser Pickup(1) Do not touch any peripheral element of the pickup or the actuator.(2) The traverse unit and the pickup are

42、 precision devices and therefore must not be subjected to strong shock.(3) Do not use a tester to examine the laser diode. (The diode can easily be destroyed by the internal power supply of the tester.)(4) To replace the traverse unit, pull out the metal short pin for protection from charging.(5) Wh

43、en replacing the pickup, after mounting a new pickup, remove the solder on the short land which is provided at the center ofthe flexible wire to open the circuit.(6) Half-fixed resistors for laser power adjustment are adjusted in pairs at shipment to match the characteristics of the optical block.Do

44、 not change the setting of these half-fixed resistors for laser power adjustment. 1.9.2Destruction of Traverse Unit and Laser Pickup by Static ElectricityLaser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements ofthe traverse

45、unit or pickup, be sure to take the following electrostatic protection:(1) Wear an antistatic wrist wrap.(2) With a conductive sheet or a steel plate on the workbench on which the traverse unit or the pick up is to be repaired, ground thesheet or the plate.(3) It solders to two short circuit section

46、s on the substrate of a pick-up.(4) After removing the flexible wire from the connector (CN101), short-circuit the flexible wire by the metal clip.(5) Short-circuit the laser diode by soldering the land which is provided at the center of the flexible wire for the pickup. After completing the repair,

47、 remove the solder to open the circuit.Short circuitPick-upGear1*Please refer to the disassembly method for details.Main boardCN101(No.XA016)1-7SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.1-8 (No.XA016)SECTION 3DISASSEMBLYThere is a part

48、different from the photograph according to the model and the destination though explains this disassembly methodby using XV-N310B for U.S.A.3.1Main body section3.1.1Removing the top cover (See Figure 1)(1) Remove the two screws A attaching the top cover on bothsides of the main body.(2) Remove the t

49、hree screws B attaching the top cover on theback of the main body.(3) Raise the both sides and lower part of the rear of the topcover, with opening them slightly in an outward direction.And the top cover will be removed.Fig.13.1.2Removing the front panel assembly (See Figure 2, Figure 3, Figure 4) P

50、rior to performing the following procedure, remove the topcover. There is no need to remove the mechanism assembly.(1) Insert a kind of screwdriver in a hole located in the rightside of mechanism assembly, and push a lever until it can-not be inserted any further.(2) And then, a tray will come out.