Jvc-UXN-1-Service-Manual电路原理图.pdf
《Jvc-UXN-1-Service-Manual电路原理图.pdf》由会员分享,可在线阅读,更多相关《Jvc-UXN-1-Service-Manual电路原理图.pdf(31页珍藏版)》请在收音机爱好者资料库上搜索。
1、SERVICE MANUALCOPYRIGHT 2006 Victor Company of Japan, LimitedNo.MB5392006/6MICRO COMPONENT SYSTEMMB53920066UX-N1SA,UX-N1SUS,UX-N1SUB,UX-N1SUF,UX-N1SUP,UX-N1SUT,UX-N1SUW,UX-N1SUY,UX-N1SUJ,UX-N1WA,UX-N1WUS,UX-N1WUB,UX-N1WUF,UX-N1WUP,UX-N1WUT,UX-N1WUW,UX-N1WUJLead free solder used in the board (materia
2、l : Sn-Ag-Cu, melting point : 219 Centigrade)TABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5CA-UXN1Sfor DIGIATL AUDIO PLAYERIN LINE OUTSP-UXN1SSP-UXN1SCA-
5、UXN1W SP-UXN1WSP-UXN1W1-2 (No.MB539)SPECIFICATIONDesign and specifications are subject to change without notice.Amplifier section OUTPUT POWER 10 W (5 W + 5 W) at 4 (10% THD)Speakers/Impedance 4 - 16 Audio Input : LINE IN 500 mV/47 k (at “LINE IN LVL1“)250 mV/47 k (at “LINE IN LVL2“)125 mV/47 k (at
6、“LINE IN LVL3“)Audio output : LINE OUT 1.0 Vrms (47 k) (at “LINE OUT LVL1“)2.0 Vrms (47 k) (at “LINE OUT LVL2“)Tuner section FM Tuning range 87.50 MHz - 108.00 MHzAM Tuning range 530 kHz - 1 710 kHz (in 10 kHz spacing)531 kHz - 1 710 kHz (in 9 kHz spacing)CD player section Dynamic range 88 dBSignal-
7、to-noise ratio 93 dBWow and flutter ImmeasurableSpeakers Speaker units 8 cm cone 1Impedance 4 Dimensions (approx.) (W/H/D) 130 mm 171 mm 136 mmMass (approx.) 0.75 kg eachGeneral Power requirements AC 110/220 - 240 V (adjustable with the voltage selector except for Hong Kong and Australia), 50/60 HzA
8、C 240 V , 50 Hz (only Australia)AC 220 V , 50 Hz (only Hong Kong)Power consumption 21.0 W (Power on)5.0 W (Standby mode)4.5 W or less (Save mode)Dimensions (W/H/D) 270 mm 68.5 mm 203 mmMass 1.8 kg(No.MB539)1-3SECTION 1PRECAUTION1.1 Safety Precautions(1) This design of this product contains special h
9、ardware andmany circuits and components 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
10、by qualified personnel only.(2) 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 pers
11、onal injury or propertydamage resulting 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 replacem
12、ent components rated for higher 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 Servi
13、ce Manual. The use of a substitutereplacement 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, bar
14、riers and the like to be separated 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 no
15、rmal, after reassem-bling.(5) Leakage 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
16、 without danger of electrical shock.Do notuse 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 currentfrom each exposed metal parts of the cabinet, particular-ly any exposed metal part having a ret
17、urn 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 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 resistorpar
18、alleled 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 the ACvoltmeter. Move the resistor connection to each exposed metalpart, particularly any exposed metal part having a returnpath to the chassis, and measu
19、re the AC voltage acrossthe resistor. 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.). 1.2 Warning(1) This equipment has been designed and manufactured tomeet international safety standar
20、ds.(2) It is the legal responsibility 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 provid
21、ed, check setting for localvoltage.1.3 CautionBurrs 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.1.4 Critical parts for safetyIn regard with component parts appearing on the silk-screenprin
22、ted side (parts side) of the PWB diagrams, 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.
23、(This regulation dose not Except the J and 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.MB539)1.5 Important for laser products1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or
24、 invisible class II laser radiationwhen open. Do not stare into beam.(Others) Visible and/or invisible class 1M laser radiationwhen open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible laser radiation whenopen and inter lock failed or defeated. Avoid directexposu
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- JvcUXN1ServiceManual 电路 原理图