JVC-UXF3-cs-sm 维修电路原理图.pdf
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1、SERVICE MANUALCOPYRIGHT 2010 Victor Company of Japan, LimitedNo.MB7432010/6MICRO COMPONENT SYSTEMMB74320106 SERVICE MANUALUX-F3BA, UX-F3BB, UX-F3BC, UX-F3BE, UX-F3BEN, UX-F3BEV, UX-F3BJ, UX-F3BUJ, UX-F3HB, UX-F3HE, UX-F3HEN, UX-F3HEVCOPYRIGHT 2010 Victor Company of Japan, LimitedLead free solder use
2、d in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)TABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-74ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . .
4、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-115TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11SP-UXF3BSP-UXF3BCA-UXF3BSP-UXF3HSP-UXF3HCA-UXF3
5、Hexcept UX-F3BJ/CexceptUX-F3BJ/CRadioFans.CN 收音机爱 好者资料库1-2 (No.MB743)SPECIFICATIONDesign and specifications are subject to change without notice.Main unit (CA-UXF3B/CA-UXF3H)For B.E.EN.EVFor J.CGeneralPower sourceAC 230 V , 50 HzAC 120 V , 60 HzPower consumption (at operation)40 WPower consumption (
6、on standby)1.00 W or lessDimensions (approx.) (W x H x D)236 mm 123 mm 285 mm (including projecting parts)236 mm 123 mm 285 mm (9-5/16“4-7/8“11-1/4“)(including projecting parts)Mass (approx.)2.0 kg2.0 kg(4.5 lbs)AmplifierOutput Power60 W (30 W + 30 W) at 6 (10% THD)Audio InputAUDIO IN: Stereo mini (
7、 3.5 mm)Speaker impedance6 - 16 TunerFM frequency87.50 MHz - 108.00 MHzUSB (Only Europe)USB specificationCompatible with USB 2.0 Full SpeedCompatible deviceMass storage classCompatible systemFAT16, FAT32Output powerDC 5 V 500 mAiPodOutput powerDC 5 V 500 mAVideo outCompositeSpeaker(SP-UXF3B/SP-UXF3H
8、)Speaker typeBass-reflex typeTweeter4 cm4 cm(1-5/8“)Woofer12 cm12 cm(4-3/4“)Impedance6 Dimensions (approx.) (W x H x D)141 mm 250 mm 181 mm (including projecting parts)141 mm 250 mm 181 mm (5-9/16“9-7/8“7-3/16“)(including projecting parts)Mass (approx.)1.8 kg each1.7 kg (3.8 lbs) eachRadioFans.CN 收音
9、机爱 好者资料库(No.MB743)1-3Design and specifications are subject to change without notice.UX-F3BA/UX-F3BUJGeneralPower sourceFor Australian modelAC 240 V , 50 HzFor another modelAC 110 V - 127 V / 220 V - 240 V adjustable with voltage selector, 50/60 HzPower consumption (at operation)40 WPower consumption
10、 (on standby)1.00 W or lessDimensions (approx.) (W H D)236 mm 123 mm 285 mm (including projecting parts)Mass (approx.)2.0 kgAmplifierOutput Power60 W (30 W + 30 W) at 6 (10% THD)Audio InputAUDIO IN: Stereo mini ( 3.5 mm)Speaker impedance6 - 16 TunerFM frequency87.50 MHz - 108.00 MHzUSBUSB specificat
11、ionCompatible with USB 2.0 Full SpeedCompatible deviceMass storage classCompatible systemFAT16, FAT32Output powerDC 5 V 500 mAiPodOutput powerDC 5 V 500 mAVideo outCompositeSpeaker(SP-UXF3B)Speaker typeBass-reflex typeTweeter4 cmWoofer12 cmImpedance6 Dimensions (approx.) (W H D)141 mm 250 mm 181 mm
12、(including projecting parts)Mass (approx.)1.8 kg each1-4 (No.MB743)SECTION 1PRECAUTION1.1Safety 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 desi
13、gn 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) Alterations of the design or circuitry of the product shouldnot be made. Any design alterations of the product
14、shouldnot be made. Any 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 character
15、istics. 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 voltage, watt-age, etc. Replacement parts which have these specialsafety characteristics are identified in the
16、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 substitutereplacement which does not have the same safety charac-teristics as the recommended replacement parts shown i
17、nthe 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 separated fromlive parts, high temperature parts, moving parts and/orsharp edges for the prevention of electric shock
18、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) Leakage shock hazard testingAfter reassembling the product, always perform an isola-tion check on the exposed met
19、al 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 shock.Do notuse a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet
20、. 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 known good earth ground. Any leakage cur-rent must not exceed 0.5mA AC (r.m.s.). Alternate check methodPlug the AC l
21、ine 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 capacitor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with
22、 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 resistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Voltage measured any mustnot exceed 0.75
23、 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 responsibility of the repairer to ensure thatthese safety standards are maintained.(3) Repairs must be made in accordance w
24、ith 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.1.3CautionBurrs formed during molding may be left over on some partsof the chassis. Therefore, pay attention to
25、 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 diagrams, the parts that areprinted over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by
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