Jvc-XVNP-1-SL-Service-Manual电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITEDNo.XA0042003/9DVD PLAYER / MEMORY CARD READERXA00420038XV-NP1SLTABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2、-32 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-83 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、 1-94 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-165 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . 1-23213546879010 +10TITLE/GROUPTV/VIDEOCANCELRETURNTHUMBNAIL/LISTVOL VOL+CH+CHVFPZOOMAMPVOLAUDIOSOUNDEFFECTSUB TITLESLIDEEFFECTANGLEDIMMERREPEATOPEN/CLOSEDVD/CARDTV1 TV2 TV3TV4 TV5 TV6TV7 TV8 TV9TV-/- TV0 MUTINGTV DVDNEXTPREVIOUSSELECTCLEARSLOW- SLOW+TOPMENU MENUONSCREENCHOICEENTERSTANDBY

5、/ONTV DVDPROGRESSIVE SCANArea SuffixJ - U.S.A.C - CanadaUJ - U.S.A MilitalyB - U.K.E - Continental EuropeEN - Northern EuropeEV - Eastern EuropeEE - Russian Federation1-2 (No.XA004)SPECIFICATION Specifications and appearance are subject to change without prior notice. Manufactured under license from

6、 Dolby Laboratories. “Dolby” and the double-D symbol are trademark of Dolby Laboratories. “DTS” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.General Readable discs DVD VIDEO, DVD-R (Video format), DVD-RW (Video format), SVCD, Video CD, Audio CD (CD-DA), CD-R/RW (CD-DA, SVCD,

7、Video CD, MP3/WMA format, JPEG, MPEG-4)Readable cards SD card, Multi Media Card, Smart Media, Compact Flash, Memory Stick (MP3/WMA format, JPEG, MPEG-4)Video format NTSC, 480i (Interlaced scan) / 480p (Progressive scan) selectableOther Power requirements AC 120 V, 60 HzPower consumption 12 W (POWER

8、ON), 2.7 W (STANDBYmode)Mass 2.1 kg (4.7 lbs)Dimensions (W xH x D) 435 mm x 48 mm x 270.5 mm (17-3/16 inch x 1-15/16 inch x 10-11/16 inch)Video outputs COMPONENT (pin jacks) Y Output: 1.0 Vp-p (75 ohm)PB/PR Output: 0.7 Vp-p (75 ohm)VIDEO OUT (pin jack) 1.0 Vp-p (75 ohm)S-VIDEO OUT (S jack) Y Output:

9、 1.0 Vp-p (75 ohm)C Output: 286 mVp-p (75 ohm)Horizontal resolution 500 lines or moreAudio outputs ANALOG OUT (pin jack) 2.0 Vrms (10 kohm)DIGITAL OUT (COAXIAL) 0.5 Vp-p (75 ohm termination)DIGITAL OUT (OPTICAL) -21 dBm to -15 dBm (peak)Audio characteristics Frequency response CD (sampling frequency

10、 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 range 16 bit: More than 98 dB20/24 bit: More than 100 dBWow and flutter Unmeasurable (less than + 0.002%)Total har

11、monic distortion less than 0.006%(No.XA004)1-3SECTION 1PRECAUTION1.1 Safety 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

12、 in writing by themanufacturer. Replacement parts must be identical 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. A

13、ny design alterations or additions will voidthe manufacturers warranty 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 charac

14、teris-tics are often not evident from visual inspection nor can 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-vi

15、ce Manual. Electrical components having such featuresare identified 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 S

16、ervice Manual may create shock, fire, orother hazards.(4) The leads 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

17、 service is required, the original lead routingand dress should be observed, and it should be confirmedthat they have been returned to normal, after reassem-bling.(5) Leakage shock hazard testingAfter reassembling the product, always perform an isola-tion check on the exposed metal parts of the prod

18、uct (an-tenna terminals, knobs, metal cabinet, screw heads,headphone 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 a“Leakage Cu

19、rrent Tester“, measure the leakage currentfrom each exposed metal 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

20、into the AC outlet. Use anAC voltmeter having, 1,000 per volt or more sensitivityin the following manner. Connect a 1,500 10W resistorparalleled by a 0.15F AC-type capacitor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with the ACvoltmeter.

21、Move the resistor connection to each exposed metalpart, 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.). Th

22、is corresponds to 0.5mA AC (r.m.s.). 1.2 Warning(1) This 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 relevants

23、afety standards.(4) It is essential that safety critical components are replacedby approved parts.(5) If mains voltage selector is provided, check setting for localvoltage.1.3 CautionBurrs formed during molding may be left over on some partsof the chassis. Therefore, pay attention to such burrs in t

24、he case of pre-forming repair of this system.1.4 Critical 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 n

25、earby are criticalfor safety. When replacing them, be sure to use the parts of thesame type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensit

26、ivity)1500 10W0.15 F AC TYPE1-4 (No.XA004)1.5 Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laserdiode in the traverse unit (optical pickup). Take care to prevent this when performing r

27、epairs.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 repairs are being performed. (1) Ground the workbenchGround the workbenc

28、h 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 up in your body. (3) Handling the optical pickup In order to maintain

29、 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 use a tester to check the condition of the laser diode in the optical pi

30、ckup. The testers internal power source can easilydestroy the laser diode. 1.6 Handling the traverse unit (optical pickup)(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc.

31、 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 connector. (3) Handle the flexible cable carefully as it may break whe

32、n subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.1MConductive material(conductive sheet) or iron palate(caption)Anti-static wrist strap(No.XA004)1-51.7 Importance administering point on the safetyFull Fuse Replacement

33、MarkingGraphic symbol mark (This symbol means fast blow type fuse.)should be read as follows ;FUSE CAUTIONFOR CONTINUED PROTECTION AGAINST RISKOF FIRE, REPLACE ONLY WITH SAME TYPEAND RATING OF FUSES ;F901 : 1.6 A / 125 V F901 : 1.6 A / 125 VMarquage Pour Le Remplacement Complet De FusiblePRECAUTIONS

34、 SUR LES FUSIBLESPOUR UNE PROTECTION CONTINUE CONTRE DES RISQUES DINCENDIE, REMPLACER SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;Le symbole graphique (Ce symbole signifie fusible de type a fusion rapide.)doit etre interprete comme suit ;B204 J681 B926 B925 C761 C762 C902 C904 C905 C907 C908 C913 C914 C9

35、18 C950 C951 C952 C953 C955 C957 C958 C959 CN901 C963 C964 C965 C966 C967 C970 C973 C988 CP951 B201 D901 D902 D903 D904 D951 D952 D953 D954 D955 D956 D957 D960 EP951 FC901 FC902 B927 IC901 IC952 J603 J702 L709 L710 L901 L951 L952 L953 L954 L955 B903 P901 PC901 B904 Q753 Q754 Q951 Q953 B905 B906 B907

36、 B908 B909 B56 B923 B910 R901 R903 R906 R910 R912 R913 R915 R951 R954 R966 S901 T901 CN651 EP910 CN902 CN903 C906 B301 B107 C808 B802 C802 B1 B4 B921 B19 B104 EP952 B202 B931 B111 B110 B901 B902 B203 B804 B205 B101 B801 B922 B2 B6 B207 B402 B404 B403 B934 WC802 B108 B929 B911 B924 B912 B55 EP953 B3

37、B913 B914 B915 B916 B917 B918 B919 S902 CN904 B935 1-6 (No.XA004)1.8 Important for laser products1.CLASS 1 LASER PRODUCT2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.3.CAUTION : There are no serviceable parts inside theLaser Unit. Do

38、not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.4.CAUTION : The compact disc player uses invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated

39、. It is dangerous to defeat the safety switches.5.CAUTION : If safety switches malfunction, the laser is able to function.6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.!Please use enough caution not

40、to see the beam directly or touch it in case of an adjustment or operationcheck.REPRODUCTION AND POSITION OF LABELWARNING LABELCAUTION: Invisiblelaserradiation when open andinterlock failedor defeated.AVOIDDIRECT EXPOSURE TO BEAM. (e)ADVARSEL: Usynlig laser-strlingved bning, nr sikkerhedsafbrydere e

41、r udeaf funktion. Undg udst-telse for strling (d)VARNING: Osynlig laser- strlning nr denna del r ppnadoch sprrenr urkopplad. Betrakta ej strlen.(s)VARO:Avattaessa jasuo-jalukitus ohitettaessa oletalttiinankymttmllelasersteilylle. l katso steeseen. (f)The inside of a chassis base(No.XA004)1-71.9 Prec

42、autions for Service1.9.1 Handling 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 precision devices and therefore must not be subjected to strong shock.(3) Do not use a tester to examine the laser diode.

43、(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) When replacing the pickup, after mounting a new pickup, remove the solder on the short land which is provided at the center o

44、fthe 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 not change the setting of these half-fixed resistors for laser power adjustment. 1.9.2 Destruction of Traverse Unit and La

45、ser Pickup by Static ElectricityLaser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements ofthe traverse unit or pickup, be sure to take the following electrostatic protection:(1) Wear an antistatic wrist wrap.(2) With a conduc

46、tive 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) Please be sure to make the switch of a relay board into the “SHORT“ side before drawing out a wire from the connector CN101on a servo control board,when taking o

47、ut a mechanism assembly from a main body.And please be sure to make a switch intothe “OPEN“ side after connecting a wire to CN101, when it mounts a mechanism assembly in a main body.(4) After removing the flexible wire from the connector (CN1), short-circuit the flexible wire by the metal clip.(5) S

48、hort-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, remove the solder to open the circuit.The procedure for protecting a pickupIn case you assemble, please do all work conversely.The switch on a relay bo

49、ard is changed from “OPEN“ to “SHORT.“A wire is extracted from the connector CN101 on a servo control board.It solders to the short circuit part on a flexible wire, and it is made to short-circuit.A flexible wire is extracted from the connector CN1 on a relay board.Short circuitCN1Relay boardShort circuitSwitch1-8 (No.XA004)SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not