JVC-XVN30BK-cd-sm 电路图 维修手册.pdf

《JVC-XVN30BK-cd-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《JVC-XVN30BK-cd-sm 电路图 维修手册.pdf（80页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED. No.XA002 2003/5 DVD VIDEO PLAYER XA00220035 XV-N30BKMK2, XV-N33SLMK2 TABLE OF CONTENTS 1Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2、-4 2Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . 1-16 4Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 213 5 8 4 7 6 9 010+10 DISPLAY 3D PHONIC ANGLE TOP MENUMENU CHOICE PREVIOUSSELECT CLEAR NEXT VFPON SCREEN ENTER SUB TITLE

4、AUDIOZOOM TITLE/ GROUPRETURNCANCEL STANDBY/ON SLOW Area Suffix J - U.S.A. C - Canada B - U.K. E - Continental Europe EN - Northern Europe EV - Eastern Europe EE - Russian Federation This illustration is XV-N30BK for U.S.A. For only Europe This service manual is a service manual of the model which ch

5、anges a part of specification of the above-mentioned model which has already been put on the market. Please refer to the following page for details. RadioFans.CN 收音机爱 好者资料库 1-2 (No.XA002) For this service manual This service manual is a service manual of the model which changes a part of specificati

6、on of the above-mentioned model which has already been put on the market. The specification is different from what the label of the same model does not paste because of the specification improvement, and refer to this service manual, please. Please already refer to the issued service manual when the

7、 label is not pasted. * Please refer to this service manual for the model to which this label is pasted. * Please refer to the service manual which has already been issued for the model to which this label is not pasted. (one that there is no description named MK2 in cover of service manual. ) 0478

8、inside Used only service dealer Please refer to service manual of an applicable model MK2 GN30080-001A The surface of a rear panel or RadioFans.CN 收音机爱 好者资料库 (No.XA002)1-3 SPECIFICATION (For U.S.A.) General Other Video outputs Audio outputs Audio characteristics Specifications and appearance are sub

9、ject to change without prior notice. Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are trademarkes of Dolby Laboratories. Manufactured under license from Digital Theater Systems, Inc. DTS and DTS Digital Surround are registered trademarks of Dig- ital Theater Syst

10、ems, Inc. Readable discsDVD VIDEO, DVD-R (Video format), DVD-RW (Video format), +RW (Video format), SVCD, Video CD, Audio CD (CD-DA), MP3 format, CD-R/RW (CD-DA, SVCD, Video CD, MP3 format) Video formatNTSC Power requirementsAC 120 V, 60 Hz Power consumption10 W (POWER ON) 0.7 W (STANDBY mode) Mass2

11、.1 kg (4.7 lbs) Dimensions (W x H x D)435mm x 53mm x 248.4mm (17-3/16 inch x 2-1/8 inc x 9-13/16 inch) COMPONENT (pin jacks)Y Output: 1.0 Vp-p (75 ohm) Pb/Pr Output: 0.7Vp-p (75 ohm) VIDEO OUT (pin jack)1.0 Vp-p (75 ohm) S-VIDEO OUT (S jack)Y Output: 1.0 Vp-p (75 ohm) C Output: 286 mVp-p (75 ohm) Ho

12、rizontal resolution500 lines or more 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) Frequency responseCD (sampling frequency 44.1 kHz):2 Hz to 20 kHz DVD (sampling frequency 48 kHz):2 Hz to 22 kHz (4 Hz to 20

13、kHz for DTS and Dolby Digital bitstream signals) DVD (sampling frequency 96 kHz):2 Hz to 44 kHz Dynamic range16 bit: More than 98 dB 20 bit: More than 100 dB 24 bit: More than 100 dB Wow and flutterUnmeasurable (less than + 0.002%) Total harmonic distortionless than 0.006% RadioFans.CN 收音机爱 好者资料库 1-

14、4 (No.XA002) SECTION 1 Important Safety Precautions 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless authorized in writin

15、g by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any d

16、esign alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These chara

17、cteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of

18、Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts shown in the Par

19、ts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and

20、 fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that 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 expose

21、d metal parts of the product (an- tenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. Plug the AC line cord directly into the

22、AC outlet. Using a Leakage Current Tester, measure the leakage current from each exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). Alternate check metho

23、d Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensi- tivity in the following manner. Connect a 1,500 ohm 10W resistor paralleled by a 0.15 F AC-type capacitor be- tween an exposed metal part and a known good earth ground. Measure the AC

24、voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Vol

25、tage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintain

26、ed. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on so

27、me parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such a

28、s the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (Except the JC version) (No.XA002)1-5 1.5Preventing static electricity Electrostatic dischar

29、ge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work

30、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 workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before

31、 placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built 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 r

32、eplacement optical pickup 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 pickup. The testers internal power source can easily destroy the laser diode. 1.6Handling

33、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. after replacing the optical pickup. For specific details, refer to the replacement pro

34、cedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (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 resisto

35、r that adjusts the laser power. Do not turn it. 1.7Precautions of the safe use of battery (Only XV-N30BK for U.S.A.) Store the battery in a place where children cannot reach.If a child accidentally swallows the battery, consult a doctorimmediately. Do not recharge, short, disassemble or heat the bat

36、tery 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 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

37、it in tape and insulate; otherwise, the battery may start to give off heat, crack, or start a fire. Do not poke the battery with tweezers or similar tools.Doing 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

38、, and local regulations. 1-6 (No.XA002) 1.8Importance admistering point on the safety C701 C706 C902 C904 C905 C907 C908 C913 C914 C918 C950 C951 C953 C955 C957 B34 C959 B139 C965 C966 C967 B15 C973 C974 C975 B276 C977 B772 C988 B4 D901 CP951 D701 D953 CN901 D904 B873 B166 EP951 FC901 FC902 IC901 IC

39、952 J702 L709 L710 L901 L951 L952 L954 B116 L955 B532 C976 P704 P901 PC901 Q953 B45 R901 R903 R906 R910 R912 R913 R953 R954 S901 T901 X701 S902 C952 B234 C970 B236 D956 B137 L956 L957 L959 B333 B533 B771 B32 B852 B874 B872 B871 B140 B272 B332 B601 B141 B16 B331 B136 B403 B271 B38 B39 B36 B142 B143 B

40、40 B133 B134 B132 B202 B231 B233 B105 B41 B201 B103 B101 B171 B44 D955 B303 B135 CN902 B273 B631 B37 L953 R966 R951 R915 B2 B237 Q951 B203 B102 C958 D957 D954 D952 D951 D903 D902 B347 EP952 C963 C964 EP953 B17 R969 C906 , B138 C808 C802 CN904 B170 D702 Full Fuse Replacement Marking Graphic symbol ma

41、rk (This symbol means fast blow type fuse.) should be read as follows ; FUSE CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSES ; F901 : 1.6 A / 125 VF901 : 1.6 A / 125 V Marquage Pour Le Remplacement Complet De Fusible PRECAUTIONS SUR LES FUSIBLES

42、 POUR 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 ; (No.XA002)1-7 1.9Important for laser products (1) CLASS 1 LASER PRODUCT (2) DANG

43、ER : Invisible laser radiation when open and inter lock failed 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 the complete Laser Unit if it malfunctions. (4) CAUTION : The compact disc player

44、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 de feated. It is dangerous to defeat the safety switches. (5) CAUTION : If safety switches malfunction, the laser is able to fu

45、nction. (6) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION Please use enough caution not to see the beam directly or touch it in case of anadjustment or operation check. VARNING Osynlig laserst

46、rlning r denna del r ppnad och sprren r urkopplad. Betrakta ej strlen. VARO Avattaessa ja suojalukitus ohitettaessa olet alttiina nkymt- tmlle lasersteilylle. l katso steeseen. ADVARSEL Usynlig laserstrling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsasttelse for strling. ADVARSEL

47、Usynlig laserstrling ved pning, nr sikkerhetsbryteren er avs- lott. unng utsettelse for strling. REPRODUCTION AND POSITION OF LABEL and PRINT WARNING LABEL and PRINT RIGHTLEFT COAXIAL VIDEO S-VIDEO PCM/STREAM VIDEO OUTAV OUTAUDIO OUTDIGITAL OUT AV COMPU LINK COMP. /RGB Y/C VIDEO SIGNAL SELECTOR The

48、inside of a rear panel 1-8 (No.XA002) 1.10 Precautions for Service 1.10.1 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.

49、(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) When replacing the pickup, after mounting a new pickup, remove the solder on the short