Yamaha-CRXE320-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL 101049 IMPORTANT NOTICE This 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 already known and understood by the user

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

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

4、capabilities, 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, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications ar

5、e, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body

6、 may have accumulated 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 CONTENTS TO SERVICE PERSONNEL . 23 PREVENTION OF ELEC

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

8、M . 17 PRINTED CIRCUIT BOARDS. 1823 SCHEMATIC DIAGRAMS. 2427 PIN CONNECTION DIAGRAMS. 28 REPLACEMENT PARTS LIST . 2932 REMOTE CONTROL. 3233 P.O.Box 1, Hamamatsu, Japan CRX-E320/ NX-E700 2007 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in pr

9、int or electronically without permission. 07.06 CRX-E320/NX-E700 MICRO COMPONENT SYSTEM MCR-E320 COMPACT DISC RECEIVER/SPEAKER SYSTEM The MCR-E320 consists of the CRX-E320 and the NX-E700. MCR-E320 CRX-E320NX-E700構成。 RadioFans.CN 收音机爱 好者资料库 CRX-E320/NX-E700 2 CRX-E320/ NX-E700 WALL OUTLET EQUIPMENT

10、UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the Calif

11、ornia Health and Welfare Agency (and possibly other entities) to cause 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

12、! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. 1. Critical Components Information Components having special characteristics are mark

13、ed s and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter i

14、mpedance should be equivalent to 1500 ohms shunted by 0.15F. GLeakage current must 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 ins

15、talled in this unit and solder joints are soldered using the lead free solder. Among some types of lead free solder currently available, it is recommended to use one of the following types for the repair work. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bis

16、muth) Caution: As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder. About lead free solder / 無鉛 I TO SERVICE PERSONNEL WARNING: Laser Safety This product contains a lase

17、r beam component. This component may emit invisible, as well as visible radiation, which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit. 1) When testing and/or repairing any component within the product, k

18、eep your eyes and skin more than 30 cm away from the laser pick-up unit at all times. Do not stare at the laser 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

19、 procedures other than those specified herein may result in hazardous radiation exposure. RadioFans.CN 收音机爱 好者资料库 CRX-E320/NX-E700 3 CRX-E320/ NX-E700 Laser Emitting conditions: 1) When the top cover is removed, and the STANDBY/ON SW is turned to the “ON” position, the laser component will emit a be

20、am for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through the lens of 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

21、 exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of

22、this control can increase the laser emission level from the device. Laser Diode Properties Material:GaAlAs Wavelength:780 nm Emission Duration: Continuous Laser Output:Max. 44.6 W * *This output is the value measured at a distance of about 200 mm from the objective lens surface on the optical pick-u

23、p block. VARO!:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLE LASER- STEILYLLE. L KATSO STEESEEN. VARNING!: OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. Optical pick-up RadioFans.CN 收音机爱 好者资料库 CRX-E320/NX-E700 4 CRX-E320/ NX-E700 NX-E700 CR

24、X-E320 NX-E700 I 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 damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of

25、 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 incidence of compo- nent damage caused by electrostatic discharge (ESD). 1. Immediately before handling any semiconductor co

26、mponent or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. Aft

27、er removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static s

28、older 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-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. 6. Do not remove a replace

29、ment ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compa- rable conductive material). 7. Immediately before removing the protective ma

30、terial 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 to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when hand

31、ling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device). Grounding for electrostatic breakdown prevention 1. Huma

32、n 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 optical pick- up is placed and ground the sheet. Caution: The static electricity of your clothes will

33、not be grounded through the wrist strap. So take care not to let your clothes touch the optical pick-up. 1M-ohms Conductive material (sheet) or steel sheet Anti-static wrist strap I PREVENTION OF ELECTROSTATIC DISCHARGE CRX-E320/NX-E700 7 I INTERNAL VIEW 215 (8-7/16) 308.4 (12-1/8) 15(9/16) 270.4 (1

34、0-5/8) 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/RW Audio Performance / 部性能 (1 kHz) Signal-Noise .100 dB or more Dynamic range.100 dB or more Distortion and Noise .0.005 % or less DAC. 192 kHz/24-bit I Amplifier Section / 部 Minimum RMS Output P

35、ower Per Channel / 定格出力 (6-ohm, 1 kHz, 0.5 % THD) .25 W + 25 W Maximum RMS Output Power Per Channel / 実用最大出力 (6-ohm, 1 kHz, 10 % THD) .30 W + 30 W Input Sensitivity/Impedance / 入力感度/ AUX etc. . 300 mV/47 k-ohms Frequency Response / 周波数特性 (1 W, 6-ohm) CD etc. . 20 Hz to 20 kHz 0.5 dB Total Harmonic D

36、istortion / 全高調波歪率 (6-ohm, 1 kHz, 1 W) CD etc. .0.08 % or less Signal to Noise Ratio / S/N比 (IHF-A network) CD etc. .95 dB or more Output level/Impedance / 出力/ PHONES (Volume max.) . 1 V/32 ohms I Tuner Section / 部 FM Section / FM部 Tuning Range / 受信周波数範囲 U, T, K, A, G, L models. 87.50 to 108.00 MHz

37、J model. 76.0 to 108.0 MHz Sensitivity / 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 kHz T, K, A, G, L, J models. 522 to 1629 kHz Sensitivity / 感度 S/N 20 dB . 60 dB (EMF) I General / 総合 Power Supply / 電源電圧 U model.AC 120 V, 60 Hz T, K, A, G, L, J models .

38、 AC 100 to 240 V, 50/60 Hz Power Consumption / 消費電力 . 55 W Standby Power Consumption / 待機時消費電力 . 1.0 W or less Dimensions (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 models Black color . G, L, J models Sil

39、ver color . U, K, G, L models Accessories / 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 product improvements. 参考仕様外観予告変更。 I SPECIFICATIONS / 参考仕様 CRX-E320NX-E700 Type / 型式 . 2-way bass reflex speaker system/ Magnetic

40、shielding type 2式防磁型 Driver / Woofer .11 cm (4-1/2) cone type Tweeter. 2.5 cm (1) dome type Frequency 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 ohms Nominal Input / 許容入力 . 40 W Maximum Input / 最大入力 . 110 W Sensitivity / 出力音圧 .85 dB/2.83 V/m Crossover Frequency / 周波数 .3 kHz Input Terminal / 入力端子 . Screw/Banana type Dimensions (W x H x D)