Yamaha-MCR730-cs-sm 维修电路原理图.pdf

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1、DRX-730/NX-E700The MCR-730 consists of the DRX-730 and the NX-E700.1 0 111 9SERVICE MANUALIMPORTANT 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 specifi

2、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 product t

3、o 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 constitute aut

4、horization, 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 of YAMAHA

5、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 discharges can d

6、estroy 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 you apply pow

7、er to the unit. CONTENTSTO SERVICE PERSONNEL .24PREVENTION OF ELECTROSTATIC DISCHARGE .5REGION MANAGEMENT INFORMATION .6SYSTEM COMPOSITION .6FRONT PANELS .7REAR PANELS .89REMOTE CONTROL PANELS .9SPECIFICATIONS . 1011INTERNAL VIEW .12SERVICE PRECAUTIONS .1314DISASSEMBLY PROCEDURES .1516UPDATING FIRMW

8、ARE .1723SELF-DIAGNOSTIC FUNCTION .2436DISPLAY DATA .37IC DATA .3843BLOCK DIAGRAMS .4445PRINTED CIRCUIT BOARDS .4651PIN CONNECTION DIAGRAMS .52SCHEMATIC DIAGRAMS .5355REPLACEMENT PARTS LIST .5769REMOTE CONTROL .7071MICRO COMPONENT SYSTEManimate 08.11P.O.Box 1, Hamamatsu, JapanCopyright 2008 All righ

9、ts reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission.DRX-730/NX-E700MCR-730RadioFans.CN 收音机爱 好者资料库2DRX-730/NX-E700DRX-730/NX-E700This product contains chemicals known to the State of California to cause cancer, or

10、 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 fumes or expose eyes to solder/flux vapor!If you

11、come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.1. Critical Components InformationComponents having special characteristics are marked and must be replaced with parts having specifications equal to those originally installe

12、d.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 shunted by 0.15 F.“CAUTION”“F501: FOR CONTINUED PROTE

13、CTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.”CAUTIONF501: REPLACE WITH SAME TYPE 4A, 125V FUSE.ATTENTIONF501: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 4A, 125V.All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.Among so

14、me 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 melting point temperature of the lead free solder is about 30C to 4

15、0C (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.WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULAT

16、INGTABLEWARNING: CHEMICAL CONTENT NOTICE!About lead free solderRadioFans.CN 收音机爱 好者资料库3DRX-730/NX-E700DRX-730/NX-E700WARNING: Laser SafetyThis 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 an

17、d 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 from the laser pick-up unit at all times. Do not stare at the laser beam at any time

18、.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 in hazardous radiation exposure.Laser Emitting conditions:1) When the Top

19、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 through the lens of the laser pick-up unit. Do not attempt any servicing during this per

20、iod!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, however, this level has been set by the factory prior to shipping from the factory. Do not

21、 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 AlGaInPWave length: 655 nm (DVD)790 nm (VCD/CD)Output Power: 5 mW (DVD)7 mW (VCD/CD)Beam divergence: 20

22、 degreeLaser Diode Properties4DRX-730/NX-E700DRX-730/NX-E700The 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 c

23、omponents 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, removed or re-adjusted.Handle the DVD mechanism with care when the unit has to be exchanged!The DVD mecha

24、nism is very sensitive for dropping or giving shocks.Warning for power supplyU, C modelsT, K, A, G, F, L, V models5DRX-730/NX-E700DRX-730/NX-E700Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES)

25、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 the incidence of component damage caused by electro static discharge (ESD).1. Immediately before handling any

26、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 discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit un

27、der 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 exposure of the assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an

28、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 use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.6. Do not remo

29、ve 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 together by conductive foam, aluminum foil or comparable conductive material).7. Immediately before removing the prot

30、ective 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 no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when

31、 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 static electricity (ESD) sufficient to damage an ES device).Grounding for electrostatic breakdown prevention1. Human bod

32、y 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 area where the optical pickup is placed and ground the sheet.Caution:The static electricity of your clothes will not be ground

33、ed through the wrist strap. So take care not to let your clothes touch the optical pickup. PREVENTION OF ELECTROSTATIC DISCHARGE1M-ohmsConductive material(sheet) or steel sheetAnti-static wrist strap6DRX-730/NX-E700DRX-730/NX-E700This product incorporates copyright protection technology that is prot

34、ected 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 protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unle

35、ss otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.Region Management Information: This DVD player is designed and manufactured to respond to the Region Management Information that is recorded on a DVD disc. If the Region number described on the DVD d

36、isc does not correspond to the Region number of this DVD player, this DVD player cannot play this disc. REGION MANAGEMENT INFORMATION14222255436 NX-E700 NX-E700 DRX-730 The MCR-730 consists of the DRX-730 and the NX-E700. SYSTEM COMPOSITIONDRX-730NX-E700Gold colorBlack colorBlack colorSilver colorWh

37、ite colorWhite colorColor variations:7DRX-730/NX-E700DRX-730/NX-E700Top view FRONT PANELSDRX-730 (U, C, T, K, A, G, F, L, V models)NX-E700 (U, C, T, K, A, G, F, L, V models)8DRX-730/NX-E700DRX-730/NX-E700DRX-730 (U, C models) REAR PANELSDRX-730 (G model)DRX-730 (T model)DRX-730 (F model)DRX-730 (K m

38、odel)DRX-730 (L model)DRX-730 (A model)DRX-730 (V model)9DRX-730/NX-E700DRX-730/NX-E700NX-E700T modelU, C, K, A, G, F, L, V modelsT model REMOTE CONTROL PANELSU, C, K, A, L, V modelsG, F models10DRX-730/NX-E700DRX-730/NX-E700 SPECIFICATIONS Amplifier SectionMaximum Power (JEITA, 6 ohms, 1 kHz, 10 %

39、THD) SP OUT . 30 W + 30 WMinimum RMS Output Power (6 ohms, 1 kHz, 0.9 % THD) SP OUT . 20 W + 20 WInput Sensitivity/Input Impedance (1 kHz, 20 W) AUX, PORTABLE . 400 mV/47 k-ohmsMaximum Input Signal Level (1 kHz, 0.5 % THD) AUX, PORTABLE .2.2 V or moreOutput Level/Output Impedance (400 mV) REC OUT (1

40、 kHz) . 400 mV/1.2 k-ohmsWOOFER PRE OUT (50 Hz) .2.0 V/1 k-ohmsHEADPHONE (1 kHz, 32 ohms) . 660 mV/100 ohmsFrequency Response (AUX, PORTABLE, 10 to 22 kHz) SP OUT . 0/-3 dBSignal to Noise Ratio (AUX, PORTABLE, IHF-A) SP OUT (Input shorted 400 mV) .95 dB or moreTotal Harmonic Distortion (AUX, PORTABL

41、E, 20 kHz-LPF, 1 kHz, 1 W) SP OUT .0.05 % or lessTone Control Characteristics BASS SP OUT (100 Hz) . 10 dBTREBLE SP OUT (10 kHz) . 10 dB Tuner SectionTuning Range FM U, C models . 87.5 to 107.9 MHzT, K, A, G, F models . 87.50 to 108.00 MHzL, V models .87.5 to 108.0 / 87.50 to 108.00 MHzAM U, C model

42、s . 530 to 1,710 kHzT, K, A, G, F models . 531 to 1,611 kHzL, V models .530 to 1,710 / 531 to 1,611 kHz DVD SectionOutput Level (DVD/VIDEO, CD/CD-DA) REC OUT (1 kHz, 0 dB) . 2 0.3 VSignal to Noise Ratio (DVD/VIDEO, CD/CD-DA) REC OUT (Weighted) .100 dB or moreDynamic Range REC OUT DVD, 48 kHz, 24 bit

43、 .95 dB or moreCD-DA/VIDEO, CD .95 dB or moreHarmonic Distortion + Noise (DVD/VIDEO, CD/CD-DA) REC OUT .0.005 % or lessFrequency Response PRE OUTCD-DA/VIDEO, CD .10 Hz to 20 kHzDVD, 48 kHz, sampling .10 Hz to 22 kHzDVD, 96 kHz, sampling .10 Hz to 44 kHzVideo Output Composite .1 Vp-p (75 ohms)Y Outpu

44、t/Component Video Output .1 Vp-p (75 ohms)Pb Output/Component Video Output .0.7 Vp-p (75 ohms)Pr Output/Component Video Output .0.7 Vp-p (75 ohms)RGB AV MONITOR OUT (SCART) Output G, F models .0.7 Vp-p (75 ohms) Input/Output SectionInput Terminal Analog audio .AUX L/R (pin jack rear)PORTABLE (mini j

45、ack front)Other .USB (USB 1.1, full speed) DOCKOutput Terminal Analog audio .SPEAKERS L/RPHONESAUX L/R (REC)SUBWOOFERDigital audio .OPTICALVideo .VIDEO (composite)COMPONENT (Y, PB, PR)HDMI AV MONITOR OUT (SCART) (G, F models) GeneralPower Supply U, C models . AC 120 V, 60 HzT model . AC 220 V, 50 Hz

46、K model . AC 220 V, 60 HzA model . AC 240 V, 50 HzG, F models . AC 230 V, 50 HzL model .AC 220-240 V, 50/60 HzV model . AC 110 V, 60 HzPower Consumption .30 WStandby Power Consumption (reference data) .Less than 1 WDimensions (W x H x D) .215 x 113 x 300 mm (8-7/16 x 4-7/16 x 11-13/16)Weight .2.9 kg

47、 (6 lbs. 6 oz.)Finish Gold color .T, A modelsBlack color .U, A, G, F, L, V modelsSilver color .C, K, A, G, F, L, V modelsWhite color .C, K, A, G, F modelsAccessories Remote control . x 1Battery (R6, AA, UM-3) . x 2Indoor FM antenna (1.4 m) . x 1AM loop antenna (1.2 m) . x 1Video pin cable (1.5 m) .

48、x 1* Specifications are subject to change without notice due to product improvements.DRX-73011DRX-730/NX-E700DRX-730/NX-E700U .U.S.A. model C .Canadian modelT .Chinese modelK .Korean model A .Australian modelG .European modelF . Russian model L .Singapore modelV . Taiwan model DIMENSIONSUnit: mm (in

49、ch) Speaker SectionType . 2-way bass reflex speaker systemMagnetic shielding typeDriver Woofer .11 cm (4-1/2) cone typeTweeter .2.5 cm (1) dome typeFrequency Response .60 Hz to 28 kHz (-10dB)Impedance .6 ohmsNominal Input .40 WMaximum Input .110 WSensitivity . 85 dB/2.83 V/mCrossover Frequency .3 kH

50、zInput Terminal . Screw/Banana typeDimensions (W x H x D) .165 mm x 255 mm x 183 mm(6-1/2 x 10-1/16 x 7-3/16)Weight .3.4 kg (7 lbs. 8 oz.)Finish Black color .U, C, T, K, A, G, F, L, V modelsWhite color .C, K, A, G, F modelsAccessory . Speaker cable (4 m) x 1* Specifications subject to change without