JVC-XVN312S-cd-sm 电路图 维修手册.pdf

《JVC-XVN312S-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-XVN312S-cd-sm 电路图 维修手册.pdf（70页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LIMITED No.XA016 2004/3 DVD VIDEO PLAYER XA01620043 XV-N210B, XV-N212S, XV-N310B, XV-N312S TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . 1-8 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . . . . . . . . . 1-18 Area Suffix J - U.S.A. C - Canada This illustration is XV-N210B for U.S.A. 213 546 879 010+10 DISPLAY /DIMMER SOUND EFFECT ANGLE TOP MENU SLIDE EFFECT THUMBNAIL /LIST MENU SET UP PREVIOUSSELECT CLEAR NEXT I/PON SCREEN ENTER SUB TITLEAUDIOZOOM TITLE /GROUPRETURNCA

5、NCEL STANDBY/ON SLOW V I D E O Except J/C of XV-N210B,XV-N212S RadioFans.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

6、 are trademarkes of Dolby Laboratories. DTS and 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 p

7、roduct incorporates copyright protection technology 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 technology must be authorized by Macrovision Corporation,

8、 and is intended for home and other limited viewing uses only unless otherwise au- thorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. General Readable discsDVD VIDEO, DVD-R (Video format), DVD-RW (Video format),SVCD, Video CD, Audio CD (CD-DA), JPEG, CD-R/RW(CD-DA

9、, SVCD, Video CD, MP3 format, JPEG,MPEG-4) Video formatNTSC, 480i (Interlaced scan)/480p (Progressive scan) selectable Other Power requirementsAC 120 V, 60 Hz Power 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 7-1

10、5/16 inch) Video outputs COMPONENT (pin jacks)Y Output: 1.0 Vp-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 more Audio outputs ANALOG OUT (pin jack)2.0 Vrms (10 k) DIGIT

11、AL OUT (COAXIAL)0.5 Vp-p (75 termination) Audio characteristics 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 kHz for DTS and Dolby Digital bitstream signals) DVD (sampling frequency 96 kHz):2 Hz to 44 kHz Dynamic range16

12、 bit: More than 98 dB 20 bit/24 bit: More than 100 dB Wow and flutterUnmeasurable (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 Hz Power consumption 11.0 W (PO

13、WER ON), 2.0 W (STANDBY mode) RadioFans.CN 收音机爱 好者资料库 (No.XA016)1-3 SECTION 1 PRECAUTION 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 origin

14、al design unless authorized in writing 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

15、the product should not be made. Any design 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

16、-related characteristics. These characteris- 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

17、 are identified in the Parts List of 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 recommend

18、ed replacement parts shown in the Parts 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

19、 the prevention of electric shock and 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 perfo

20、rm an isola- tion check on the exposed 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. Plu

21、g the AC line cord directly into the 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 0.5

22、mA AC (r.m.s.). Alternate check method 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 kno

23、wn good earth ground. Measure the AC 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 ou

24、tlet and repeat each measurement. Voltage 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 tha

25、t these safety standards are maintained. (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

26、during molding may be left over on some 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 th

27、at are printed over with black such as 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) RadioFans.CN 收音机爱 好者资料库 1-4 (No

28、.XA016) 1.5Preventing static electricity Electrostatic discharge (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 preven

29、t damage by static electricity Static 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 workbench Ground the workbench by laying conductive materia

30、l (such as a conductive sheet) or an iron plate over it before 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 a

31、nd before installation, both sides of the laser diode on the replacement 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

32、 power source can easily destroy 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. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the opti

33、cal pickup. For specific details, refer to the replacement procedure 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 f

34、orce. (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 children cannot reach.If a child accidentally swallows the battery, consult a doctorimmediately.

35、 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 metallic materials.Doing this may cause the battery to give off heat, crack, or start a f

36、ire. When throwing away or saving the battery, wrap 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 batteri

37、es in the proper manner, according to federal, state, and local regulations. (No.XA016)1-5 1.8Important for laser products (1) CLASS 1 LASER PRODUCT (2) DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. (3) CAUTION : There are no serviceab

38、le 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 uses invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety

39、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 function. (6) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radia

40、tion exposure. CAUTION Please use enough caution not to see the beam directly or touch it in case of anadjustment or operation check. VARNING Osynlig laserstrlning r denna del r ppnad och sprren r urkopplad. Betrakta ej strlen. VARO Avattaessa ja suojalukitus ohitettaessa olet alttiina nkymt- tmlle

41、lasersteilylle. l katso steeseen. ADVARSEL Usynlig laserstrling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsasttelse for strling. ADVARSEL Usynlig laserstrling ved pning, nr sikkerhetsbryteren er avs- lott. unng utsettelse for strling. REPRODUCTION AND POSITION OF LABEL and PRINT W

42、ARNING LABEL and PRINT The inside of a chassis 1-6 (No.XA016) 1.9Precautions for Service 1.9.1Handling 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 precision devices and therefore must not be subject

43、ed 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) When replacing the pickup, after mounting a new pic

44、kup, remove the solder on the short land which is provided at the center of the 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 re

45、sistors for laser power adjustment. 1.9.2Destruction of Traverse Unit and Laser Pickup by Static Electricity Laser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements of the traverse unit or pickup, be sure to take the followin

46、g 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 the sheet or the plate. (3) It solders to two short circuit sections on the substrate of a pick-up. (4) Aft

47、er 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, remove the solder to open the circuit

48、. Short circuit Pick-upGear1 *Please refer to the disassembly method for details. Main board CN101 (No.XA016)1-7 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-8 (No.XA016) SECTION 3 DISASSEMBLY There is a part different from the photog

49、raph according to the model and the destination though explains this disassembly method by using XV-N310B for U.S.A. 3.1Main body section 3.1.1Removing the top cover (See Figure 1) (1) Remove the two screws A attaching the top cover on both sides of the main body. (2) Remove the three screws B attaching the top cover on the back of the main body. (3) Raise the both sides and lower part of the rear of the top cover, with opening them slightly in an outward direction. And the top cover will be removed. Fig.1