Yamaha-DRX-730-Service-Manual电路原理图.pdf

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1、DRX-730/NX-E700 The MCR-730 consists of the DRX-730 and the NX-E700. 1 0 111 9 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 sp

2、ecifi cally YAMAHA Products, are already known 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 pr

3、oduct to perform as specifi ed. For these reasons, 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 consti

4、tute authorization, certifi cation or recognition 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 o

5、f YAMAHA are continually striving to improve 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 discha

6、rges can destroy expensive components. Discharge 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 yo

7、u apply power to the unit. CONTENTS TO SERVICE PERSONNEL .24 PREVENTION OF ELECTROSTATIC DISCHARGE .5 REGION MANAGEMENT INFORMATION .6 SYSTEM COMPOSITION .6 FRONT PANELS .7 REAR PANELS .89 REMOTE CONTROL PANELS .9 SPECIFICATIONS . 1011 INTERNAL VIEW .12 SERVICE PRECAUTIONS .1314 DISASSEMBLY PROCEDUR

8、ES .1516 UPDATING FIRMWARE .1723 SELF-DIAGNOSTIC FUNCTION .2436 DISPLAY DATA .37 IC DATA .3843 BLOCK DIAGRAMS .4445 PRINTED CIRCUIT BOARDS .4651 PIN CONNECTION DIAGRAMS .52 SCHEMATIC DIAGRAMS .5355 REPLACEMENT PARTS LIST .5769 REMOTE CONTROL .7071 MICRO COMPONENT SYSTEM animate 08.11 P.O.Box 1, Hama

9、matsu, Japan Copyright 2008 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. DRX-730/NX-E700 MCR-730 RadioFans.CN 收音机爱 好者资料库 2 DRX-730/NX-E700 DRX-730/NX-E700 This product contains chemicals known t

10、o the State of California to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fu

11、mes 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 marked and must be replaced with parts having

12、 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. Meter impedance should be equivalent to 1500 ohms s

13、hunted by 0.15 F. “CAUTION” “F501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.” CAUTION F501: REPLACE WITH SAME TYPE 4A, 125V FUSE. ATTENTION F501: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 4A, 125V. All of the P.C.B.s installed in this unit and sol

14、der 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 + bismuth) Caution: As the melti

15、ng 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 plug in both polari- ties. W

16、ALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! About lead free solder RadioFans.CN 收音机爱 好者资料库 3 DRX-730/NX-E700 DRX-730/NX-E700 WARNING: Laser Safety This product contains a laser beam component. This component may emit invisible, a

17、s 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, keep your eyes and skin more than 30 cm/1 feet away fro

18、m 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 procedures other than those specified herein ma

19、y result in hazardous radiation exposure. 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 beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate thr

20、ough 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 exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on the pick-up PWB, how

21、ever, 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 this control can increase the laser emission level from the device. Type: Semiconductor laser AlGaInP Wave le

22、ngth: 655 nm (DVD) 790 nm (VCD/CD) Output Power: 5 mW (DVD) 7 mW (VCD/CD) Beam divergence: 20 degree Laser Diode Properties 4 DRX-730/NX-E700 DRX-730/NX-E700 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

23、 ! This primary area is not shielded so it is possible to accidentally touch copper tracks and/or components when servicing the player. Service personnel have to take precautions to prevent touching this area or components in this area. Note: The screws on the DVD mechanism may never be touched, rem

24、oved or re-adjusted. Handle the DVD mechanism with care when the unit has to be exchanged! The DVD mechanism is very sensitive for dropping or giving shocks. Warning for power supply U, C modelsT, K, A, G, F, L, V models 5 DRX-730/NX-E700 DRX-730/NX-E700 Some semiconductor (solid state) devices can

25、be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce

26、the incidence of component damage caused by electro static discharge (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharg

27、ing 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 equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exp

28、osure 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 removal devices not classified as “anti-static (ESD protect- ed)” can generate electrical charge sufficient to damage ES devices. 5. Do not

29、 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 package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted

30、together by conductive foam, aluminum foil or comparable conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES divice, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure

31、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. (Otherwise harmless motion such as brushing together of your fabric clothes or lifting of your foot from a carpeted floor can generate

32、static electricity (ESD) sufficient to damage an ES device). Grounding for electrostatic breakdown prevention 1. Human body grounding. Use the antistatic wrist strap to discharge the static electricity from your body. 2. Work table grounding. Put a conductive material (sheet) or steel sheet on the a

33、rea 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 care not to let your clothes touch the optical pickup. PREVENTION OF ELECTROSTATIC DISCHARGE 1M-ohms Conductive material (sheet) or steel

34、 sheet Anti-static wrist strap 6 DRX-730/NX-E700 DRX-730/NX-E700 This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright

35、 protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. Region Management Information: This DVD player is designed and

36、manufactured to respond to the Region Management Information that is recorded on a DVD disc. If the Region number described on the DVD disc does not correspond to the Region number of this DVD player, this DVD player cannot play this disc. REGION MANAGEMENT INFORMATION 1 4 2 2 2 2 5 5 4 3 6 NX-E700

37、NX-E700 DRX-730 The MCR-730 consists of the DRX-730 and the NX-E700. SYSTEM COMPOSITION DRX-730NX-E700 Gold color Black colorBlack color Silver color White colorWhite color Color variations: 7 DRX-730/NX-E700 DRX-730/NX-E700 Top view FRONT PANELS DRX-730 (U, C, T, K, A, G, F, L, V models) NX-E700 (U

38、, C, T, K, A, G, F, L, V models) 8 DRX-730/NX-E700 DRX-730/NX-E700 DRX-730 (U, C models) REAR PANELS DRX-730 (G model) DRX-730 (T model)DRX-730 (F model) DRX-730 (K model)DRX-730 (L model) DRX-730 (A model)DRX-730 (V model) 9 DRX-730/NX-E700 DRX-730/NX-E700 NX-E700 T model U, C, K, A, G, F, L, V mod

39、els T model REMOTE CONTROL PANELS U, C, K, A, L, V modelsG, F models 10 DRX-730/NX-E700 DRX-730/NX-E700 SPECIFICATIONS Amplifier Section Maximum Power (JEITA, 6 ohms, 1 kHz, 10 % THD) SP OUT . 30 W + 30 W Minimum RMS Output Power (6 ohms, 1 kHz, 0.9 % THD) SP OUT . 20 W + 20 W Input Sensitivity/Inpu

40、t Impedance (1 kHz, 20 W) AUX, PORTABLE . 400 mV/47 k-ohms Maximum Input Signal Level (1 kHz, 0.5 % THD) AUX, PORTABLE .2.2 V or more Output Level/Output Impedance (400 mV) REC OUT (1 kHz) . 400 mV/1.2 k-ohms WOOFER PRE OUT (50 Hz) .2.0 V/1 k-ohms HEADPHONE (1 kHz, 32 ohms) . 660 mV/100 ohms Frequen

41、cy Response (AUX, PORTABLE, 10 to 22 kHz) SP OUT . 0/-3 dB Signal to Noise Ratio (AUX, PORTABLE, IHF-A) SP OUT (Input shorted 400 mV) .95 dB or more Total Harmonic Distortion (AUX, PORTABLE, 20 kHz-LPF, 1 kHz, 1 W) SP OUT .0.05 % or less Tone Control Characteristics BASS SP OUT (100 Hz) . 10 dB TREB

42、LE SP OUT (10 kHz) . 10 dB Tuner Section Tuning Range FM U, C models . 87.5 to 107.9 MHz T, K, A, G, F models . 87.50 to 108.00 MHz L, V models .87.5 to 108.0 / 87.50 to 108.00 MHz AM U, C models . 530 to 1,710 kHz T, K, A, G, F models . 531 to 1,611 kHz L, V models .530 to 1,710 / 531 to 1,611 kHz

43、DVD Section Output Level (DVD/VIDEO, CD/CD-DA) REC OUT (1 kHz, 0 dB) . 2 0.3 V Signal to Noise Ratio (DVD/VIDEO, CD/CD-DA) REC OUT (Weighted) .100 dB or more Dynamic Range REC OUT DVD, 48 kHz, 24 bit .95 dB or more CD-DA/VIDEO, CD .95 dB or more Harmonic Distortion + Noise (DVD/VIDEO, CD/CD-DA) REC OUT .0.005 % or less Frequency Response PRE OUT CD-DA/VIDEO, CD .10 Hz to 20 kHz DVD, 48 kHz, sampling .10 Hz to 22 kHz DVD, 96 kHz, sampling .10 Hz to 44 kHz Video Output Composite .1 Vp-p (75 ohms