JVC-UXG45-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2006 Victor Company of Japan, LimitedNo.MB5332006/6MICRO COMPONENT SYSTEMMB53320066UX-G45B,UX-G45E,UX-G45EN,UX-G45EVLead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)TABLE OF CONTENTS1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . .

2、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . .

3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-74ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-145TROUBLESHOOTING . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15CA-UXG45SP-UXG45SP-UXG45RadioFans.CN 收音机爱 好者资料库1-2 (No.MB533)SPECIFICATIONDesign and specifications are subject to change without notice.Amplifier sectionOutput Power80 W per channel, min.

5、RMS, driven into 6 at 1 kHz with no more than 10% total harmonic distortion. (IEC268-3)Speakers/Impedance6 - 16 Audio InputAUX(Input sensitivity/Impedance)LEVEL1 : 150 mV/47 kLEVEL2 : 500 mV/47 kUSBVer.1.1Tuner sectionFM tuning range87.50 MHz - 108.00 MHzAM (MW) tuning range522 kHz - 1 629 kHzCD pla

6、yer section Dynamic range85 dBSignal-to-noise ratio85 dBWow and flutterImmeasurableGeneralPower requirementAC 230 V , 50 HzPower consumption145 W (at operation)20 W (on standby)0.9 W (standby and on Display off)Dimensions (approx.)175 mm 246 mm 415 mm (W/H/D)Mass (approx.)6.2 kgSpeakersType2-way Bas

7、s reflexSpeaker units Woofer12 cm cone 1Tweeter4 cm cone 1Impedance6 Dimensions (approx.)145 mm 246 mm 212 mm (W/H/D)Mass (approx.)2.2 kg eachRadioFans.CN 收音机爱 好者资料库(No.MB533)1-3SECTION 1PRECAUTIONS1.1Safety Precautions(1) This design of this product contains special hardware andmany circuits and co

8、mponents 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 identical tothose used in the original circuits. Services should be per-formed by qualified personnel only.(2)

9、 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 warranty and will further relieve themanufacture of responsibility for personal injury or propertydamage r

10、esulting 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 theprotection afforded by them necessarily be obtained by us-ing replacement components rated for higher

11、 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 identified by shading on the schematics and by ( ) onthe Parts List in the Service Manual. The use of a substit

12、utereplacement 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 leads in the products are routed and dressed with ties,clamps, tubings, barriers and the like to be separa

13、ted 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 be observed, and it should be confirmedthat they have been returned to normal, after reassem-bling.(5) L

14、eakage shock hazard testingAfter 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,headphone jack, control shafts, etc.) to be sure the productis safe to operate without danger of electrical s

15、hock.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 metal parts of the cabinet, particular-ly any exposed metal part having a return path to thechassis, to a know

16、n 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 per volt or more sensitivityin the following manner. Connect a 1,500 10W resistorparalleled by a 0.15F AC-type capaci

17、tor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with the ACvoltmeter. 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 resis

18、tor. 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) This equipment has been designed and manufactured tomeet international safety standards.(2) It is the legal responsibil

19、ity 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 critical components are replacedby approved parts.(5) If mains voltage selector is provided, check setting for localvoltage

20、.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.1.4Critical parts for safetyIn regard with component parts appearing on the silk-screenprinted side (parts side) of the PWB dia

21、grams, the parts that areprinted over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by the mark nearby 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 a

22、nd C version)Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE1-4 (No.MB533)1.5 Safety Precautions (U.K only)(1) This design of this product contains special hardware and many circuits and components specially f

23、or safety purposes. For con-tinued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replace-ment parts must be identical to those used in the original circuits.(2) Any unauthorised design alterations or additions will void the manufacture

24、rs guarantee; furthermore the manufacturer cannotaccept 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 the schematics, and must neverbe replaced by parts other than those lis

25、ted in the manual. Please note however that many electrical and mechanical parts inthe product have special safety related characteristics. These characteristics are often not evident from visual inspection. Partsother than specified by the manufacturer may not have the same safety characteristics a

26、s the recommended replacement partsshown 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 like to be separated from live parts,high temperature parts, moving parts an

27、d/or sharp edges for the prevention of electric shock and fire hazard. When service isrequired, the original lead routing and dress should be observed, and it should be confirmed that they have been returned tonormal, after re-assembling.1.5.1Warning(1) Service should be performed by qualified perso

28、nnel 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 standards are maintained.(4) Repairs must be made in accordance with the relevant safety standards.(5) It is essential

29、 that safety critical components are replaced by approved parts.(6) If mains voltage selector is provided, check setting for local voltage.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

30、.(No.MB533)1-51.6Important for laser products1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments. 3.CA

31、UTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open an

32、d 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 or performance of procedures other than those specified here in may result in hazardo

33、us radiation exposure. REPRODUCTION AND POSITION OF LABELS and PRINT!Please use enough caution not to see the beam directly or touch it in case of an adjustment or operationcheck. WARNING LABEL and PRINT1-6 (No.MB533)SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFI

34、C SERVICE INSTRUCTIONS.(No.MB533)1-7SECTION 3DISASSEMBLY3.1Main Body3.1.1Removing the side panel (See Fig.1, 2)(1) Remove the four screws A attaching the rear cover. (SeeFig.1)(2) Remove the six screws B attaching the side panel . (SeeFig.1)(3) Remove the four screws C attaching the side panel. (See

35、Fig.2)Fig.1Fig.2ABBAAECC1-8 (No.MB533)3.1.2Removing the top cover (See Fig.1, 3)(1) Remove the four screws D attaching the top cover and theside panel. (See Fig.3)(2) Remove the one screw E attaching the top cover. (SeeFig.1)Caution:When take out the top cover, raise slowly, take care not tobreak th

36、e two claws of the front panel.Fig.33.1.3Removing the power trans board (See Fig.4)(1) Remove the two screws F attaching the power trans board.(2) Disconnect the connector wire from the connector CN103of the main board.(3) Disconnect the connector wires from the connectorsCN901, CN902 of the trans b

37、oard.Fig.4DDbbFCN901CN902CN103Connector wire a(No.MB533)1-93.1.4Removing the tuner pack (See Fig.5, 6)(1) Remove the two screws G attaching the tuner pack. (SeeFig.5)(2) Disconnect the card wire from the connector CN351 of themain board. (See Fig.6)3.1.5Removing the fan (See Fig.5, 6)(1) Remove the

38、four screws H attaching the fan. (See Fig.5)(2) Disconnect the connector wire from the connector CN141of the main board. (See Fig.6)3.1.6Removing the main board (See Fig.5, 7)(1) Remove the two screws J attaching the main board. (SeeFig.5)(2) Remove the tow screws K attaching the main board andthe f

39、ront board. (See Fig.7)(3) Disconnect the card wires from the connectors CN401,CN402 of the main board. (See Fig.7)(4) Disconnect the card wire from the connector CN403 of themain board. (See Fig.7)(5) Disconnect the parallel wire from the connector CN502 ofthe main board. (See Fig.7)(6) Disconnect

40、the connector wires from the connectorsCN101, CN102, CN204, CN361 of the main board. (SeeFig.7)(7) Remove the five screws L attaching the main board. (SeeFig.7)(8) (8) Remove the two screws M attaching the main boardand CD mechanism cover. (See Fig.7)Fig.5Fig.6Fig.7GHHHJJSCN351CN141CN402CN401CN403KC

41、N502CN102CN101CN204MLLLCN3611-10 (No.MB533)3.1.7Removing the front panel assembly (See Fig.3, 4, 8, 9)(1) Pull out the tow connector wires a on the bottom chassis.(See Fig.4)(2) Remove the two screws N attaching the front panel. (SeeFig.8)(3) Disconnect the connector wire from the connector CN860of

42、the CD board. (See Fig.9)(4) Disengage the four hooks b are remove the front panel as-sembly. (See Fig.3)Fig.8Fig.9NCN860RBN702BN703RRCN701(No.MB533)1-113.1.8Removing the CD mechanism assembly (See Fig.10 to 12)(1) Remove the four screws P attaching the CD mechanismcover and then remove it. (See Fig

43、.10)(2) Turn the gear c and then undraw the CD tray. (See Fig.11)(3) Remove the four screws Q attaching the CD mechanismassembly. (See Fig.12)Fig.10Fig.11Fig.12PcQQ1-12 (No.MB533)3.1.9Removing the CD board (See Fig.9)(1) Remove the three screws R attaching the CD Board.(2) Disconnect the connector w

44、ires connected to the CDmechanism assembly from the connectors BN702, B703 ofthe CD board.(3) Disconnect the card wire from the connector CN701 of theCD board.3.1.10 Removing the rear panel (See Fig.5, 13)(1) Remove the one screw S attaching the rear panel. (SeeFig.5)(2) Disengage the two hooks d an

45、d remove the rear panel.(See Fig.13)Fig.133.1.11 Removing the power transformer (See Fig.14)(1) Remove the four screws T attaching the power transform-er.Fig.14dTT(No.MB533)1-133.1.12 Removing the VFD board (See Fig.15, 16)(1) Take out the volume knob. (See Fig.15)(2) Remove the four screws U attach

46、ing the VFD board. (SeeFig.16)3.1.13 Removing the key board (See Fig.16)(1) Remove the fourteen screws V attaching the key board.3.1.14 Removing the jack board (See Fig.16)(1) Remove the four screws W attaching the jack board.Fig.15Fig.16Volume knobUUVVVVVW1-14 (No.MB533)SECTION 4ADJUSTMENTThis serv

47、ice manual does not describe ADJUSTMENT.(No.MB533)1-15SECTION 5TROUBLESHOOTINGThis service manual does not describe TROUBLESHOOTING.(No.MB533)Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,JapanVictor Company of Japan, LimitedVPTPrinted in Japan3-1PARTS LIST* All prin

48、ted circuit boards and its assemblies are not available as service parts.- Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.0104) Packing materials and accessories parts list (Block No.M3)UX-G45B,UX-G45E,UX-G45EN,UX-G45EV3-23-53-12MB5333-2Expl

49、oded view of general assembly and parts listBlock No.MMM1Main boarVFD boardPower Trans boardKey boardJack boarda18401511401718423232344040445678121141641142727544536209101435351340313848533-3MMain boardCD boardThe parts without symbol number are not service.a18181830343223451461824254918233245262239

50、38352737553552281847315221433331501852483-4General AssemblyBlock No. M1MMSymbol No.Part No.Part NameDescriptionLocal 1BIKT000606SCREW(x2) 2BI3021970101V1RUBBER FOOT(x4) 3BIKT000626SCREW3xL8(x2) 4BI1084880101X1FRONT PANEL 5BI2031140101X1CD DOOR SPRING 6BI372080501BTPSCREW2.0 x5.0(x4) 7BI1084220101X1C