Yamaha-CRX-140-Service-Manual电路原理图.pdf

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1、CRX-040/CRX-140/ NS-BP80 1 0 11 5 7 SERVICE MANUAL 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 specifi cally YAMAHA Products, are already kn

2、own and understood by the users, 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 specifi ed. For these r

3、easons, we advise all YAMAHA product 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 fi rm does not constitute authorization, certifi cation or recog

4、nition of any applicable technical 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 improv

5、e YAMAHA products. Modifications are, therefore, inevitable and specifi cations are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING: Static discharges can destroy expensive components. Disc

6、harge any static electricity your body 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. CONTENTS TO SERV

7、ICE PERSONNEL .2 PREVENTION OF ELECTROSTATIC DISCHARGE .5 SYSTEM COMPOSITION / 構成 .6 FRONT PANELS .79 REAR PANELS .1013 REMOTE CONTROL PANELS .14 SPECIFICATIONS / 参考仕様 .1517 INTERNAL VIEW .18 DISASSEMBLY PROCEDURES / 分解手順 .1922 UPDATING FIRMWARE / .2333 SELF-DIAGNOSTIC FUNCTION / （自己診断機能） .3448 DISP

8、LAY DATA .49 IC DATA .5054 BLOCK DIAGRAM .55 PRINTED CIRCUIT BOARDS .5665 PIN CONNECTION DIAGRAMS .66 SCHEMATIC DIAGRAMS .6774 REPLACEMENT PARTS LIST .7590 REMOTE CONTROL .9192 USING USEFUL FUNCTIONS / 便利機能 .9398 09.12 P.O.Box 1, Hamamatsu, Japan The MCR-040 consists of the CRX-040 and NS-BP80. The

9、MCR-140 consists of the CRX-140 and NS-BP80. MCR-040 、CRX-040 NS-BP80 構成。 MCR-140 、CRX-140 NS-BP80 構成。 Copyright 2009 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. CD RECEIVER/SPEAKER CRX-040/CRX

10、-140/NS-BP80 MICRO COMPONENT SYSTEMMCR-040/MCR-140 2 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOU

11、R MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! 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

12、handling food. 1. Critical Components Information Components having special characteristics are marked 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

13、 verify that all exposed conductive surfaces are properly insulated from supply circuits. Meter impedance should be equivalent to 1500 ohms shunted by 0.15 F. 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 30 40程度高、 合 使用。 All of the P.C.B.s in

14、stalled 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 + bi

15、smuth) 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. TO SERVICE PERSONNEL Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC

16、plug in both polarities. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! About lead free solder / 無鉛 For U model “CAUTION” “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.25A, 125V FUSE.” For C mode

17、l CAUTION F1: REPLACE WITH SAME TYPE 1.25A, 125V FUSE. ATTENTION F1: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 1.25A, 125V. 3 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. WARNING:

18、Lithium batteries 注意 正電池交換爆発起 。 同一型名同等品以外電池絶対交換 。 WARNING: Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following precautions when handling or replacing lithium batteries. Leave lithium battery replacement to qualified service personnel. Always repla

19、ce with batteries of the same type. When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells. Never solder directly to the cells. Perform the soldering as quickly as possible. Never reverse the battery polarities when installing. Do not short

20、the batteries. Do not attempt to recharge these batteries. Do not disassemble the batteries. Never heat batteries or throw them into fire. ADVARSEL! Lithiumbatteri Eksplosionsfare ved fejlagtig hndtering. Udskiftning m kun ske med batteri af samme fabrikat og type. Levr det brugte batteri tilbage ti

21、l leverandren. VARNING Explosionsfara vid felaktigt batteribyte. Anvnd samma batterityp eller an ekvivalent typ som rekommenderas av apparattillverkaren. Kassera anvnt batteri enligt fabrikantens instruktion. VAROITUS Paristo voi rjht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan la

22、itevalmistajan suosittelemaan tyyppiin. Hvit kytetty peristo valmistajan ohjeiden mukaisesti. WARNING: Laser Safety This product contains a laser 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 radi

23、ation, the following precautions must be used 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/1 feet away from the laser pick-up unit at all times. Do not stare at the laser beam at any time. 2) Do not attempt t

24、o 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 in hazardous radiation exposure. Laser Emitting conditions: 1) When the Top Cover is removed,

25、 and the STANDBY/ON SW is turned to the “ON” position, the laser component will emit a beam 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 i

26、s detected, the laser will stop emitting the beam. When a disc is loaded, you will not be 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 la

27、ser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. 4 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 Laser Diode Properties Type: Semiconductor laser GaAs/GaAlAs Wavelength: 780 nm Output power

28、: 10 mW The primary side of the power supply carries live mains voltage when the player is connected to the mains even when the player is switched off ! This primary area is not shielded so it is possible to accidentally touch copper tracks and/or components when servicing the player. Service person

29、nel have to take precautions to prevent touching this area or components in this area. Note: The screws on the loader mechanism may never be touched, removed or re-adjusted. Handle the loader mechanism with care when the unit has to be exchanged! The loader mechanism is very sensitive for dropping o

30、r giving shocks. Warning for power supply 5 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrat

31、ed circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped as

32、sembly, 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. After removing an electrical assembly e

33、quipped 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 solder removal device. Some solder re

34、moval 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 replacement ES device from its protective p

35、ackage 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 comparable conductive material). 7. Immediately before removing the protective material from the leads of a replacement

36、 ES device, touch the protective material 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 handling unpackaged replacement ES devices.

37、(Otherwise harmless motion such as brushing together of your fabric clothes or 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. Human body grounding. Use the antistatic wrist strap

38、 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 pickup is placed and ground the sheet. Caution: The static electricity of your clothes will not be grounded through the wrist strap. So take ca

39、re not to let your clothes touch the optical pickup. PREVENTION OF ELECTROSTATIC DISCHARGE 1M-ohms Conductive material (sheet) or steel sheet Anti-static wrist strap 6 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 SYSTEM COMPOSITION / 構成 The MCR-040 consists of the CRX-040 and NS-BP80. The MCR-14

40、0 consists of the CRX-140 and NS-BP80. MCR-040 、CRX-040 NS-BP80 構成。 MCR-140 、CRX-140 NS-BP80 構成。 NS-BP80 NS-BP80 NS-BP80 NS-BP80 MCR-040 MCR-140 CRX-140 CRX-040 7 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 U, T, K, A, B, G, L, V, J modelsU, T, A, B, G, L, V, J models FRONT PANELS CRX-140CRX-04

41、0 8 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 U, T, K, A, B, G, L, V, J models NS-BP80 9 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 Color Variations / OR : Orange color / WH : White color / LG : Light Gray color / DG : Dark Gray color / LB : Light Blue color / DB : Dark Blue color / RE

42、: Red color / PI : Pink color / DN : Dark Green color / BR : Brown color / 10 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 REAR PANELS U model K model B model T model A model G model CRX-040 11 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 L model J model V model CRX-040 12 CRX-040/CRX-140/NS

43、-BP80 CRX-040/CRX-140/ NS-BP80 U model A model G model T model B model L model CRX-140 13 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 U, T, K, A, B, G, L, V, J models V modelJ model CRX-140 NS-BP80 14 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 REMOTE CONTROL PANELS U, T, K, A, B, G, L, V

44、modelsJ model CRX-040CRX-140 15 CRX-040/CRX-140/NS-BP80 CRX-040/CRX-140/ NS-BP80 SPECIFICATIONS / 参考仕様 Amplifier Section / 部 Maximum Power / 実用最大出力 (JEITA, 1 kHz, 10 % THD, 6 ohms) SP OUT .15 W + 15 W Minimum RMS Output Power / 定格出力 (1 kHz, 0.9 % THD, 6 ohms) SP OUT .13 W + 13 W Input Sensitivity/In

45、put Impedance / 入力感度入力 (1 kHz, 20 W) PORTABLE . 450 mV / 22 k-ohms Maximum Input Signal Level / 最大許容入力 (1 kHz, 0.5 % THD) PORTABLE .2.5 V or more Output Level/Output Impedance / 出力電圧出力 (1 kHz, 450 mV, 32 ohms) Headphone . 270 mV / 100 ohms Signal to Noise Ratio / 信号対雑音比 (Portable, IHF-A network, Input shorted 450 mV) SP OUT . 85 dB or more Total Harmonic Distortion / 全高調波歪率 (Portable, 20 kHz LPF, CD etc., 1 kHz, 1 W) SP OUT .0.05 % or less Tone Control / 特性 (SP OUT) BASS (100 Hz) .