Yamaha-MCRE320-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUAL101049IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, an

2、d have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product own

3、ers that any service required should be performed by an authorizedYAMAHA Retailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilitie

4、s, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore,

5、 inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, pleasecontact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumul

6、ated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.I CONTENTSTO SERVICE PERSONNEL . 23PREVENTION OF ELECTROSTATIC DISCHARGE .

7、 4SYSTEM COMPOSITION / 構成 . 4FRONT PANEL . 5REMOTE CONTROL PANELS. 5REAR PANELS . 6SPECIFICATIONS / 参考仕様 . 7INTERNAL VIEW . 7DISASSEMBLY PROCEDURES / 分解手順. 810TEST MODE / . 1112SERVICE MODE / . 1314FACTORY MODE / . 1314DISPLAY DATA . 15BLOCK DIAGRAM. 16WIRING DIAGRAM . 17PRINTED CIRCUIT BOARDS. 1823

8、SCHEMATIC DIAGRAMS. 2427PIN CONNECTION DIAGRAMS. 28REPLACEMENT PARTS LIST . 2932REMOTE CONTROL. 3233P.O.Box 1, Hamamatsu, JapanCRX-E320/NX-E700 2007 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission. 07

9、.06CRX-E320/NX-E700MICRO COMPONENT SYSTEM MCR-E320COMPACT DISC RECEIVER/SPEAKER SYSTEMThe MCR-E320 consists of the CRX-E320 and the NX-E700.MCR-E320 CRX-E320 NX-E700構成。RadioFans.CN 收音机爱 好者资料库CRX-E320/NX-E7002CRX-E320/NX-E700WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWAR

10、NING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (andpossibly other entities) to c

11、ause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/

12、flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those or

13、iginally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohms shuntedby 0.15F.GLeakage current must

14、not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.本機搭載基板付接合部無鉛付。無鉛種類、修理時下記無鉛使用推奨。Sn+Ag+Cu （錫+銀+銅）Sn+Cu （錫+銅）Sn+Zn+Bi （錫+亜鉛+）注意：無鉛融点温度通常鉛入比3040程度高、合使用。All of the P.C.B.s installed in this unit and solder joints aresoldered using the lead free solder.Among some types of

15、 lead free solder currently available,it is recommended to use one of the following types for therepair work. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:As the melting point temperature of the lead free solder isabout 30C to 40C (50F to 70F

16、) higher than that of the leadsolder, be sure to use a soldering iron suitable to each solder.About lead free solder / 無鉛I TO SERVICE PERSONNELWARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation,which may cause eye damage

17、. To protect your eyes and skin from laser radiation, the following precautions must beused during servicing of the unit.1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away fromthe laser pick-up unit at all times. Do not stare at the laser

18、beam at any time.2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result inhazardous radiation exposure.RadioFans.CN 收音机爱 好者资料库CRX

19、-E320/NX-E7003CRX-E320/NX-E700Laser Emitting conditions:1) When the top cover is removed, and the STANDBY/ON SW is turned to the “ON” position, the laser component will emita beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through thelens o

20、f the laser pick-up unit. Do not attempt any servicing during this period!If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laseremissions.2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level h

21、as been set by the factoryprior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in thismanual. Adjustment of this control can increase the laser emission level from the device.Laser Diode PropertiesMaterial:GaAlAsWavelength:780 nmEmission

22、 Duration: ContinuousLaser Output:Max. 44.6 W *This output is the value measured at a distance ofabout 200 mm from the objective lens surface on theoptical pick-up block.VARO!:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLE LASER-STEILYLLE. L KATSO STEESEEN.VARNING!: OSYNLIG LASERST

23、RLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.Optical pick-upCRX-E320/NX-E7004CRX-E320/NX-E700NX-E700CRX-E320NX-E700I SYSTEM COMPOSITION / 構成The MCR-E320 consists of the CRX-E320 and the NX-E700.MCR-E320 CRX-E320NX-E700 構成。Some semiconductor (solid state) devices can be damag

24、ed easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transis-tors and semiconductor “chip” components. The following techniques should be used to help reduce the inci

25、dence of compo-nent damage caused by electrostatic discharge (ESD).1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD onyour body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wr

26、iststrap, which should be removed for potential shock reasons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such asaluminum foil, to prevent electrostatic charge buildup or exposure of the

27、assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)”can generate electrical charge sufficient to damage ES devices.5. Do not use freon-propelle

28、d chemicals. These can generate electrical charges sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Mostreplacement ES devices are packaged with leads electrically shorted together by conductiv

29、e foam, aluminum foil or compa-rable conductive material).7. Immediately before removing the protective material from the leads of a replacement ES divice, touch the protective mate-rial to the chassis or circuit assembly into which the device will be installed.CAUTION: Be sure no power is applied t

30、o the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as thebrushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electric

31、ity (ESD)sufficient to damage an ES device).Grounding for electrostatic breakdown prevention1. Human body grounding.Use the anti-static wrist strap to discharge the static electricity from your body.2. Work table grounding.Put a conductive material (sheet) or steel sheet on the area where the optica

32、l pick-up is placed and ground the sheet.Caution:The static electricity of your clothes will not be grounded through the wrist strap. Sotake care not to let your clothes touch the optical pick-up.1M-ohmsConductive material(sheet) or steel sheetAnti-static wrist strapI PREVENTION OF ELECTROSTATIC DIS

33、CHARGECRX-E320/NX-E7007I INTERNAL VIEW215 (8-7/16)308.4 (12-1/8)15(9/16)270.4 (10-5/8)23 (15/16)113 (4-7/16)105 (4-1/8)8(5/16)I Player Section / 部Playback System / 再生. CD, CD-R/RWAudio Performance / 部性能 (1 kHz)Signal-Noise .100 dB or moreDynamic range.100 dB or moreDistortion and Noise .0.005 % or l

34、essDAC. 192 kHz/24-bitI Amplifier Section / 部Minimum RMS Output Power Per Channel / 定格出力(6-ohm, 1 kHz, 0.5 % THD).25 W + 25 WMaximum RMS Output Power Per Channel / 実用最大出力(6-ohm, 1 kHz, 10 % THD).30 W + 30 WInput Sensitivity/Impedance / 入力感度/AUX etc. . 300 mV/47 k-ohmsFrequency Response / 周波数特性 (1 W,

35、 6-ohm)CD etc. . 20 Hz to 20 kHz 0.5 dBTotal Harmonic Distortion / 全高調波歪率 (6-ohm, 1 kHz, 1 W)CD etc. .0.08 % or lessSignal to Noise Ratio / S/N比 (IHF-A network)CD etc. .95 dB or moreOutput level/Impedance / 出力/PHONES (Volume max.) . 1 V/32 ohmsI Tuner Section / 部FM Section / FM部Tuning Range / 受信周波数範

36、囲U, T, K, A, G, L models. 87.50 to 108.00 MHz J model. 76.0 to 108.0 MHzSensitivity / 感度S/N 30 dB .7 dBVm (EMF)AM Section / AM部Tuning Range / 受信周波数範囲U model . 530 to 1700 kHzT, K, A, G, L, J models. 522 to 1629 kHzSensitivity / 感度S/N 20 dB . 60 dB (EMF)I General / 総合Power Supply / 電源電圧U model.AC 120

37、 V, 60 HzT, K, A, G, L, J models . AC 100 to 240 V, 50/60 HzPower Consumption / 消費電力. 55 WStandby Power Consumption / 待機時消費電力. 1.0 W or lessDimensions (W x H x D) / 寸法 （幅高奥行）. 215 x 113 x 308.4 mm (8-7/16 x 4-7/16 x 12-1/8)Weight / 質量. 3.1 kg (6 lbs. 13 oz)Finish / 仕上Gold color. T, A modelsBlack col

38、or . G, L, J modelsSilver color . U, K, G, L modelsAccessories / 付属品Remote control x 1, Indoor FM antenna x 1, AM loop antenna x 1*Specifications are subject to change without notice due to productimprovements. 参考仕様外観予告変更。I SPECIFICATIONS / 参考仕様CRX-E320NX-E700Type / 型式 . 2-way bass reflex speaker sy

39、stem/Magnetic shielding type2式防磁型Driver / Woofer .11 cm (4-1/2) cone typeTweeter. 2.5 cm (1) dome typeFrequency Response / 再生周波数帯域U, T, K, A, G and L models . 60 Hz to 28 kHz (-10dB)J model . 60 Hz to 80 kHz (-30dB)Impedance / . 6 ohmsNominal Input / 許容入力 . 40 WMaximum Input / 最大入力 . 110 WSensitivit

40、y / 出力音圧 .85 dB/2.83 V/mCrossover Frequency / 周波数 .3 kHzInput Terminal / 入力端子 . Screw/Banana typeDimensions (W x H x D) / 寸法 （幅高奥行）. 165 mm x 255 mm x 183 mm(6-1/2 x 10-1/16 x 7-3/16)Weight / 質量 .3.4 kg (7 lbs 8 oz)Finish / 仕上 . Black colorAccessories / 付属品 . Speaker cable (4 m) x 2*Specifications a

41、re subject to change without notice due to productimprovements. 参考仕様外観予告変更。DIMENSIONS / 寸法図Unit: mm (inch)単位：mm （）165(6-1/2)183(7-3/16)255(10-1/16)MAIN (1) P.C.B. TUNER MODULEFRONT / SMPS (3) P.C.B.CONNECTOR P.C.B.MAIN (2) P.C.B.FRONT / SMPS (2) P.C.BCD MECHANISM UNITFRONT / SMPS (1) P.C.B7812341234

42、567856U . U.S.A. and Canadian modelsT . Chinese modelK . Korean modelA . Australian modelG. European modelL. Singapore modelJ . Japanese modelCRX-E320NX-E700CRX-E320CRX-E320/NX-E7008Fig. 1 番号順部品取外。 AC電源、電源抜。1. 外方a. 12本、24本外。 （Fig. 1）b. 後方取外。（Fig. 1）2. 外方a. 開。 （ “手動開方法” 参照）b. 外、閉。 （Fig. 1）c. 32本、42本外

43、。 （Fig. 1）d. CN81外。 （Fig. 1）e. 2箇所外、前方引出。 （Fig. 1）f.CN82外。 （Fig. 1）Remove parts in disassembly order as numbered.Disconnect the power cable from the AC outlet.1. Removal of Top Covera. Remove 2 screws (1) and 4 screws (2). (Fig. 1)b. Slide the top cover rearward to remove it. (Fig. 1)2. Removal of F

44、ront Panel Unita. Eject the tray. (See “How to manually eject the tray”.)b. Remove the tray lid and close the tray. (Fig. 1)c. Remove 2 screws (3) and 2 screws (4). (Fig. 1)d. Remove CN81. (Fig. 1)e. Remove 2 hooks and then slide the front panel unit for-ward. (Fig. 1)f.Remove CN82. (Fig. 1)I DISASS

45、EMBLY PROCEDURES / 分解手順a. Turn the unit bottom up.b. Using a flatblade screwdriver, turn the loading cam 90degrees in the direction indicated by an arrow in thefigure. (Fig. 2)c. Gently pull the tray out.a. 本機上下反転。b. 図示矢印方向90度回転。 （Fig. 2）c. 引出。 How to manually eject the tray / 手動開方法Fig. 23. FRONT/SM

46、PS （3） P.C.B.外方a. 52本外。 （Fig. 3）b. 62本外。 （Fig. 4）c. CN91、CN92、CN93外。 （Fig. 3）d. 電源取外。 （Fig. 3）e. 72本外。 （Fig. 3）f.81本外。 （Fig. 4）g. FRONT/SMPS （3） P.C.B.一緒取外。 （Fig. 3）4. CD外方a. 94本外。 （Fig. 3）b. CN31、CN32外。 （Fig. 3）c. CD取外。 （Fig. 3）5. 外方a. 02本外。 （Fig. 4）b. CN45外。 （Fig. 3）c. 取外。 （Fig. 3）6. MAIN （1） P.C.

47、B.外方a. A2本、B1本、C5本外。 （Fig. 3）b. D4本外。 （Fig. 4）c. MAIN （1） P.C.B.一緒取外。 （Fig. 3）3. Removal of FRONT/SMPS (3) P.C.B.a. Remove 2 screws (5). (Fig. 3)b. Remove 2 screws (6). (Fig. 4)c. Remove CN91, CN92 and CN93. (Fig. 3)d. Remove power cable. (Fig. 3)e. Remove 2 screws (7). (Fig. 3)f.Remove screw (8). (

48、Fig. 4)g. Remove FRONT/SMPS (3) P.C.B. together with theshield case. (Fig. 3)4. Removal of CD Mechanism Unita. Remove 4 screws (9). (Fig. 3)b. Remove CN31 and CN32. (Fig. 3)c. Remove CD mechanism unit. (Fig. 3)5. Removal of Tuner Modulea. Remove 2 screws (0). (Fig. 4)b. Remove CN45. (Fig. 3)c. Remov

49、e tuner module. (Fig. 3)6. Removal of MAIN (1) P.C.B.a. Remove 2 screws (A), screw (B) and 5 screws (C).(Fig. 3)b. Remove 4 screws (D). (Fig. 4)c. Remove MAIN (1) P.C.B. together with the heat sink.(Fig. 3)1133224Top coverFront panel unit Tray lid Hook Hook CN81CN82TrayLoading camTrayFlatblade screw

50、driverBottom side底面CRX-E320CRX-E320/NX-E7009CRX-E320/NX-E700Fig. 3Fig. 46680D57997ABCCPower cable電源Tuner moduleHeat sinkShield caseCD mechanism unitCDCN91CN93CN45CN31CN32CN92MAIN (1) P.C.B.MAIN (2) P.C.B.FRONT/SMPS (3) P.C.B.CONNECTOR P.C.B.CRX-E320/NX-E70010CRX-E320/NX-E7007. 外方a. E4本外、取外。 （Fig. 5）