Jvc-UXV-10-GN-Service-Manual电路原理图.pdf

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1、1-1UX-V10GNSERVICE MANUALMICRO COMPONENT SYSTEMNo.20886Dec. 2000COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.UX-V10GNUX-V10GNContentsSafety precautionsImportant for laser productsDisassembly methodMain adjustmentFlow of functional operation until TOC readMaintenance of laser pickupReplacement of lase

2、r pickup Description of major ICs1-21-41-51-151-191-201-201-21This service manual is printed on 100% recycled paper.AUTO REVERSEAUTO TAPE SELECTORDOWN UPMULTI CONTROLTAPE FM/AM CDSTANDBYPHONESAUXRECREV.MODEAHBPROTIMERCLOCKVERTICAL DISCLOADING MECHANISMCOMPACTDIGITAL AUDIOVOLUMECDOPEN/CLOSEREMOTE CON

3、TROL RM-SUXV10ECANCELTREBLEFM/AMFM MODEDISPLAYSLEEPAUX TAPE CDCDBASSAHB PRODOWNRANDOMUPAUTOPRESETREPEATSETPROGRAMVOLUMETAPEMICRO COMPONENT SYSTEM UX-V10Area SuffixUFUNChinaIndonesia1-2UX-V10GNSafety Precautions1. This design of this product contains special hardware and many circuits and components

4、specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.2. Alterati

5、ons of the design or circuitry of the product should not be made. Any design alterations of 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 resul

6、ting therefrom.3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher volt

7、age, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service 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

8、replacement which does not have the same safety characteristics as the recommended 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 separate

9、d from live parts, high temperature parts, moving parts and/or sharp edges for 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 re-assembling.5.

10、 Leakage currnet check (Electrical shock hazard testing)After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate

11、without danger of electrical shock.Do not use a line isolation transformer during this check.Plug 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 , particularly any exposed metal part having a re

12、turn path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.)Alternate check methodPlug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resis

13、tor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground.Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to eachexposed metal part, particularly any exposed metal part having a return path to the chassis,

14、and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet 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.). Warning1. This equipment has been designed and manufactured to meet international safet

15、y standards.2. It is the legal responsibility of the repairer to ensure that 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 i

16、s provided, check setting for local voltage.Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE!CAUTIONBurrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such bu

17、rrs in the case of preforming repair of this system.1-3UX-V10GNWarning1. Service should be performed by qualified personnel only.2. This equipment has been designed and manufactured to meet international safety standards.3. It is the legal responsibility of the repairer to ensure that these safety s

18、tandards are maintained.4. Repairs must be made in accordance with the relevant safety standards.5. It is essential that safety critical components are replaced by approved parts.6. If mains voltage selector is provided, check setting for local voltage.Safety precautions1. This design of this produc

19、t contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. 2. Any

20、unauthorised design alterations or additions will void the manufacturers guarantee ; furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom.3. Essential safety critical components are identified by ( ) on the Parts List and by shading on

21、the schematics, and must never be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts other than sp

22、ecified by the manufacturer may not have the same safety characteristics as the recommended replacement parts shown in the Parts List of the Service Manual and may create shock, fire, or other hazards.4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the li

23、ke to be separated from live parts, high temperature parts, moving parts and/or sharp edges for 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

24、 re-assembling.!CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.(U.K only)1-4UX-V10GNImportant for laser products1.CLASS 1 LASER PRODUCT2.DANGER : Invisible laser radiation when

25、open and inter lock failed or defeated. Avoid direct exposure to beam.3.CAUTION : There are no serviceable parts inside theLaser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.4.CAUTION : The compact disc player uses invisible laserradiation and is equipp

26、ed with safety switches whichprevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. 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 o

27、r performance of procedures other than those specified herein may result in hazardous radiation exposure.VARNING : Osynlig laserstrlning r denna del r ppnad och sprren r urkopplad. Betrakta ej strlen.VARO : Avattaessa ja suojalukitus ohitettaessa olet alttiina nkymttmlle lasersteilylle.l katso stees

28、een.ADVARSEL : Usynlig laserstrling ved bning , nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling.ADVARSEL : Usynlig laserstrling ved pning,nr sikkerhetsbryteren er avslott. unng utsettelse for strling.REPRODUCTION AND POSITION OF LABELSWARNING LABEL!CAUTIONPlease use enough caut

29、ion not to see the beam directly or touch it in case of an adjustment or operationcheck.1-5UX-V10GNRemove the eight screws A attaching the rear cover on the back of the body.Remove the two screws B attaching the rear cover on the bottom of the body.Unlock the speaker terminal and the antenna termina

30、l, then remove the rear cover backward with releasing the hooks.1.2.3.Disassembly methodRemoving the rear cover (See Fig.1 and 2)Prior to performing the following procedure, remove the rear cover.Move the side panels in the direction of the arrow and remove them backward.1.Removing the side panels (

31、See Fig.3 and 4)Fig.1Fig.2Fig.3Fig.4Rear coverAAAAARear coverBBSide panel (L)Side panel (R)1-6UX-V10GNPrior to performing the following procedure, remove the rear cover and the side panels.Disconnect the card wires from connector CN304 and CN305 on the main board on the left side of the body.Disconn

32、ect the harness from connector CN309 on the Opt, Dig.out board on the right side of the body. Cut off the band fixing the harness.Remove the two screws C attaching the cassette mechanism assembly on both sides of the body and release the two joints a.Remove the cassette mechanism assembly in the dir

33、ection of the arrow.1.2.3.4.Removing the cassette mechanism assembly (See Fig.5 and 6)Prior to performing the following procedure, remove the rear cover, the side panels and the cassette mechanism assembly.Disconnect the card wire from connector CN303 and the harness from CN306 and CN307 on the main

34、 board respectively.Disconnect the harness from connector CN902 on the power transformer.Remove the screw E attaching the main board on the right side of the body.Remove the screw F and the two screws G attaching the heat sink on the back of the body.1.2.3.4.Disconnect connector CN301 and CN302 on t

35、he main board from the main body. Remove the main board upward by releasing the two joints b in the lower part of the main board.5.Removing the main board / the heat sink(See Fig.7 to 9)The heat sink can be removed even if the main board is attached to the body.ATTENTION: Fig.5Fig.6Fig.7Fig.8CCCN304

36、CN305Joint aMain boardCassette mechanism assemblyCassette mechanism assemblyCN309Opt, Dig.out boardBandJoint aCN303CN307CN306Transformer boardCN902Main boardHeat sinkJoint bMain boardCN302 CN301Joint bE1-7UX-V10GNPrior to performing the following procedure, remove the rear cover, the side panels, th

37、e cassette mechanism assembly and the main board.Disconnect the card wire from connector CN732 on the LCD board.Remove the two screws D attaching the front panel assembly on the bottom of the body.Release the two joints c on the lower right and left sides of the body. Pull out the front panel assemb

38、ly toward the front.1.2.3.Removing the front panel assembly (See Fig.10 to 12)Prior to performing the following procedure, remove the rear cover, the side panels, the cassette mechanism assembly, the main board and the front panel assembly.Remove the plastic rivet attaching the head phone board and

39、release the joint d.1.Removing the head phone board (See Fig.13)Fig.9Fig.10Fig.11Fig.12Fig.13Main boardHeat sinkGGFFront panel assemblyJoint cLCD boardCN732Front panel assemblyDDJoint cFront panel assemblyJoint dPlastic rivetTuner & function board1-8UX-V10GNPrior to performing the following procedur

40、e, remove the rear cover, the side panels and the cassette mechanism assembly.Disconnect the card wire from connector CN1 on the tuner & function board.Remove the screw H attaching the tuner & function board.Release the two joints e and the joint f of the tuner & function board.1.2.3.Removing the tu

41、ner & function board (See Fig.14)Prior to performing the following procedure, remove the rear cover, the side panels and the cassette mechanism assembly.Disconnect the harness from connector CN902 on the power transformer.Disconnect the harness from connector CN901 on the AC supply board.Remove the

42、four screws I attaching the power transformer.1.2.3.Removing the power transformer (See Fig.15)*Prior to performing the following procedure, remove the rear cover, the side panels and the cassette mechanism assembly.Disconnect the harness from connector CN901 on the AC supply board.Remove the screw

43、F attaching the heat sink on the back of the body (Refer to Fig.9).Remove the two screws J attaching the AC supply board.1.2.3.Removing the AC supply board(See Fig.15)To remove the AC supply board efficiently, remove the main board in advance.ATTENTION: Fig.14Fig.15Joint eJoint fTuner & function boa

44、rdCN1HPower transformer boardMain boardHeat sinkAC supply boardCN902CN901I IJJ1-9UX-V10GNRemove the two screws K attaching the Opt.Dig.out board on the side of the cassette mechanism assembly.1.Removing the Opt.Dig.out board (See Fig.16)Prior to performing the following procedure, remove the Opt.Dig

45、.out board.Press the eject button on the front side of the cassette mechanism assembly to open the cassette door.Remove the four screws L attaching the cassette mechanism assembly on the back of the assembly. 1.2.Removing the cassette mechanism assembly (See Fig.16 and 17)Prior to performing the fol

46、lowing procedure, remove the rear cover, the side panels and the cassette mechanism assembly.Fig.16Fig.17Opt, Dig.out boardCassette doorKEject buttonCassette mechanismLLLL1-10UX-V10GNDisconnect the harness from connector CN721 and CN722, and the card wire from CN766 on the LCD board on the back of t

47、he front panel assembly.Remove the five screws M attaching the CD mechanism cover to the front panel. Remove the CD mechanism cover together with the CD mechanism assembly.Release the harness from each hook on the CD mechanism cover.Remove the five screws N attaching the CD mechanism cover and the CD mechanism case. Release the three joints g of the CD mechanism cover and