Yamaha-CRXE150-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUALMINI COMPONENT SYSTEM100744IMPORTANT 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 unders

2、tood 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 personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise a

3、ll YAMAHA product owners 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

4、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, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifica

5、tions are, therefore, 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

6、 body may haveaccumulated 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.P.O.Box 1, Hamamatsu, JapanI CONTENTSTO SERVICE PERSO

7、NNEL . 12PREVENTION OF ELECTRO STATIC DISCHARGE.23FRONT PANELS. 3REAR PANELS . 4SPECIFICATIONS. 56INTERNAL VIEW . 6DISASSEMBLY PROCEDURES . 78CD MECHANISM UNIT OPERATION CHECK . 9TEST MODE . 1011CD TEST MODE. 12CD STANDARD OPERATION CHART . 1314CD ERROR MESSAGE . 1516AMP ADJUSTMENTS. 17IC DATA . 182

8、6DISPLAY DATA . 27BLOCK DIAGRAM. 2831PRINTED CIRCUIT BOARD . 3241SCHEMATIC DIAGRAM . 4245REMOTE CONTROL TRANSMITTER . 46PARTS LIST. 4759SYSTEM CONTROL . 6068NX-E150 . 69CRX-E150/NX-E150CRX-E150RadioFans.CN 收音机爱 好者资料库CRX-E150CRX-E1501WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATIN

9、GTABLEI TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are markeds and must be replaced with parts havingspecifications equal to those originally installed.2. Leakage Current Measurement (For 120V ModelsOnly)When service has been completed, it is impe

10、rative toverify that all exposed conductive surfaces are properlyinsulated from supply circuits.Meter impedance should be equivalent to 1500 ohmshunted by 0.15F.Leakage current must not exceed 0.5mA.Be sure to test for leakage with the AC plug in botpolarities.“CAUTION”“F400: FOR CONTINUED PROTECTIO

11、N AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.25A, 125V FUSE.”“F600: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.6A, 125V FUSE.”CAUTIONF400: REPLANCE WITH SAME TYPE 1.25A, 125V FUSE.F600: REPLANCE WITH SAME TYPE 1.6A, 125V FUSE.ATTENTIONF400: UTILISER UN FUSI

12、BLE DE RECHANGE DE MEME TYPE DE 1.25A, 125V.F600: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.6A, 125V.WARNING: 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

13、 contain traces of chemicals found by the California Health and Welfare Agency (andpossibly 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 ANYREASON WHATSOEVER!Avoid prolonged, unprote

14、cted contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.WARNING: Laser SafetyThis product contains a las

15、er beam component. This component may emit invisible, as well as visible radiation, which maycause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used duringservicing of the unit.1) When testing and/or repairing any component within the product, kee

16、p your eyes and skin more than 30 cm away fromthe laser pick-up unit at all times. Do not stare at the laser beam at any time.2) Do not attempt readjustment, disassembly or repair of the laser pick-up, unless noted elsewhere in this manual.3) CAUTION : Use of controls, adjustments or performance of

17、procedures other than those specified herein may result inhazardous radiation exposure.Laser Emitting conditions:1) When the Top Cover is removed, and the STANDBY/ON key is turned to the ON position, the laser component will emita beam for several seconds to detect if a disc is present. During this

18、time (5-10 sec.) the laser may radiate through thelens 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 set, you will not be exposed to any laseremissions.2) The laser power level can be adjusted

19、with the VR on the pick-up PWB, however, this level has 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.RadioFans

20、.CN 收音机爱 好者资料库CRX-E150CRX-E1502VARO!: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.B, G, R, T modelsB, G, R, T modelsThe label is underthe MAIN (1) P.C.

21、B.I PREVENTION OF ELECTRO STATIC DISCHARGESome semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors andsem

22、iconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused byelectro static discharge (ESD).1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body bytouching a kn

23、own earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should beremoved 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 conducti

24、ve surface such as aluminum foil, toprevent 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 removal devices not classified as “anti-static (ESD protected)

25、” can generateelectrical 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 package until immediately before you are ready to install it. (M

26、ostreplacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparableconductive material).7. Immediately before removing the protective material from the leads of a replacement ES divice, touch the protective material to thechassis or circuit

27、 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. (Otherwise harmless motion such as the brushingtogether of your cloth

28、es fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage anES device).Optical Pick-upPROTECTION OF EYES FROM LASER BEAM DURING SERVICINGThis set employs a laser. Therefore, be sure to carefully followthe instructions below when servicing.

29、1. 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 about200 mm from the objective lens surface on the Optical Pick-up Block.2. When checking the laser diode emission, keep your eye

30、smore than 30 cm away from the objective lens.CRX-E150CRX-E150I FRONT PANELSU, C, A, R, T modelsNATURAL SOUND CD RECEIVER CRX-E150STANDBYDISPLAYBASS+LRMINMINMAXHOURTIMERTIME ADJTREBLEBALANCEINPUTMEMORYAUTO/MANLPRESET/BANDPRESET/TURINGPHONESSTANDBY/ONTIMERVOLUME3B, G modelsNATURAL SOUND CD RECEIVER C

31、RX-E150STANDBYDISPLAYBASS+LRMINMINMAXHOURTIMERTIME ADJTREBLEBALANCEINPUTMEMORYAUTO/MANLPRESET/BANDPRESET/TURINGPHONESSTANDBY/ONTIMERVOLUMEGrounding for electrostatic breakdown prevention1. Human body groundingUse the antistatic wrist strap to discharge the static electricityfrom your body.2. Work ta

32、ble groundingPut a conductive material (sheet) or steel sheet on the areawhere the optical pickup is placed and ground the sheet.Caution:The static electricity of your clothes will not be groundedthrough the wrist strap. So take care not to let your clothestouch the optical pickup.1MConductive mater

33、ial(sheet) or steel sheetAnti-static wrist stripCRX-E150CRX-E1504B modelG modelI REAR PANELSU, C modelsA modelR, T modelsCRX-E150CRX-E1505I SPECIFICATIONSI Audio SectionMinimum RMS Output Power per Channel (Power Amp. Section)(1 kHz, 0.1% THD, 6 ohms)SP OUT L/R .25W + 25WMaximum Power per Channel (E

34、IAJ) R model(1 kHz, 10% THD, 6 ohms)SP OUT L/R .30W + 30WDynamic Power Per Channel (IHF)SP OUT L/R6 ohms.35W + 35W4 ohms.40W + 40W2 ohms.45W + 45WDIN Standard Output Power Per ChannelSP OUT L/R (1 kHz, 1% THD, 4 ohms)G model.28W + 28WDynamic Headroom6 ohmsU, C models . 1.46 dBIEC Power Per ChannelSP

35、 OUT L/R (1 kHz, 0.1% THD, 6 ohms)G model.25W + 25WPower Band Width(0.1% THD, 12.5W/6 ohms)SP OUT L/R .10 Hz to 50 kHzDamping FactorSP OUT L/R (20 Hz to 20 kHz, 6 ohms) . 60 or moreInput Sensitivity / Input ImpedanceMD . 170 mV / 47 k-ohmsTAPE . 170 mV / 47 k-ohmsAUX . 170 mV / 47 k-ohmsMaximum Inpu

36、t Signal LevelMD, etc. (1 kHz, 0.5% THD) . 3.0 VOutput Level / Output ImpedanceREC OUT (MD, TAPE) . 170 mV / 1.2 k-ohmsSUBWOOFER (50 Hz). 2.0 V/1.2 k-ohmsHeadphone Jack Rated Output / ImpedanceMD, etc. 1 kHz, 170 mV, 6 ohms. 0.35 V / 270 ohmsFrequency ResponseMD, etc. to SP OUT (20 Hz to 20 kHz) . 0

37、 0.5 dBTotal Harmonic Distortion(20 Hz to 20 kHz, 12.5 W / 6 ohms)MD, etc. to SP OUT .0.04% or lessSignal to Noise Ratio (IHF-A network)MD, etc. (Input shorted) to SP OUT150 mV .93 dB or more250 mV .98 dB or moreResidual Noise (IHF-A netwok)SP OUT L/R . 100 V or lessChannnel Separation(Vol: MAX)MD,

38、etc. (Input 5.1 k-ohms terminated, 1 kHz) .60 dB or moreMD, etc. (Input 5.1 k-ohms terminated, 10 kHz) .45 dB or moreTone Control CharacteristicsBASS:Boost/Cut . 10 dB (50 Hz)Turnover Frequency . 350 HzTREBLE: Boost/Cut . 10 dB (20 kHz)Turnover Frequency . 3.5 kHzFilter CharacteristicsSUBWOOFER (L.P

39、.F.) .fc = 150 Hz, 6 dB/oct.I FM SectionTuning RangeU, C models . 87.5 to 107.9 MHzA, B, G models. 87.50 to 108.00 MHzR, T models. 87.5 to 108.0 / 87.50 to 108.00 MHzUsable Sensitivity (IHF)Mono . 1.0 V (11.2 dBf)Alternate Channel Selectivityat 400 kHz . 70 dBSignal to Noise Ratio (IHF)Mono / Stereo

40、 .76 dB / 70 dBHarmonic Distortion(1 kHz)Mono/Stereo. 0.2 / 0.3 %Stereo Separation1 kHz . 45 dBFrequency Response20 Hz to 15 kHz .+0.5 / -2 dBAntenna Input. 75 ohms unbalancedI AM SectionTuning RangeU, C models . 530 to 1,710 kHzA, B, G models. 531 to 1,611 kHzR, T models. 530 to 1,710 / 531 to 1,61

41、1 kHzUsable Sensitivity. 300 V/mAntenna. Loop AntennaI CD SectionOutput Level1 kHz, 0dB. 2.0 0.5 VrmsSignal to Noise Ratio (EIAJ).100 dB or moreDynamic Range.96 dB or moreHarmonic Distortion + Noise1 kHz .0.006% or lessFrequency Response2 Hz to 20 kHz . 0 0.5 dBI GeneralPower SupplyU, C models .AC 1

42、20 V, 60 HzA model .AC 240 V, 50 HzB, G models .AC 230 V, 50 HzR, T models. AC 110/120/220/240 V, 50/60 HzPower ConsumptionU, C models . 70 WA, B, G, R, T models . 70 WStandby Power ConsumptionU, C models . 1.4 WA, B, G models. 1.5 WMaximum Power Consumption(2ch Drive, 1 kHz, 10% THD, 6 ohms)R, T mo

43、dels. 145 WAC Outlets1 switched outlet U, C, A, B, G models . 100W2 switched outlets R, T models. 100W max., totalDimensions (W x H x D). 217 x 168 x 312 mm (8-9/16 x 6-5/8 x 12-5/16)Weight. 5.0 kg (11 lbs.)Finish. Gold Color U, C, A, B, G, R, T models. Silver Color U, B, G modelsAccessoriesRemote C

44、ontrol Transmitter, Manganese batteries x 4, Indoor FMantenna, AM loop antennaCRX-E150CRX-E150217 (8-9/16)160 (6-5/16)8(5/16)168 (6-5/8)15(9/16)22(7/8)275 (10-13/16)312 (12-5/16)Unit : mm (inch)678901 2 3456I SPEAKER Section (NX-E150)Type.2 Way Bass-reflex Magnetic Shielding TypeDriverWoofer .11cm (

45、4-1/2) Cone TypeTweeter . 2.5cm (1) Dome TypeFrequency Response.60 Hz to 28 kHzImpedance. 6 ohmsNominal Input. 40 WMaximum Input. 110 WSensitivity.85 dB/2.83V/mCrossover Frequency.3 kHzInput Terminal. Screw/Banana TypeDimensions (W x H x D). 165 x 255 x 183 mm (6-1/2 x 10 x 7-3/16)Weight. 3.3 kg (7

46、lbs. 4 oz.)Finish. High Gloss Piano Finish, CherryAccessories.Speaker Cord (4m) x 2* Specifications are subject to change without notice due to productimprovements.U . U.S.A. modelC . Canadian modelA . Australian modelB . British modelG . European modelR . General modelT . China model DIMENSIONSI IN

47、TERNAL VIEW1 MAIN (1) P.C.B.2 MAIN (3) P.C.B.3 MAIN (4) P.C.B.4 MAIN (5) P.C.B. R, T models only5 INPUT (1) P.C.B.6 CD P.C.B.7 OPERATION P.C.B.8 INPUT (2) P.C.B.9 MAIN (2) P.C.B.0 INPUT (3) P.C.B.CRX-E150CRX-E150985760AAATunerMain (1) P.C.B.CB601Frame/P.C.B.CD MechanismUnitBDCD2211334Top CoverFront

48、Panel7I DISASSEMBLY PROCEDURES(Remove parts in the order as numbered.)Disconnect the power plug from the AC outlet.1. Removal of Top Covera. Remove 4 screws (1) and 5 screws (2) in Fig. 1.b. Lift the Top Cover at the rear and move it rear-wardslantingly.2. Removal of Front Panel Unita. Disconnect ca

49、bles from Connectors (CB752, CB415,CB407, CB305, CB302) in Fig. 2.b. Remove 3 screws (3) and 3 screws (4) in Fig. 1.c. Remove the Front Panel Unit forward in Fig. 1.3. Removal of Tunera. Disconnect a cable from Connector (CB303) in Fig. 2.b. Remove 3 screws (5) and then remove the Tuner inFig. 3.4.

50、Removal of MAIN (1) P.C.B.a. Disconnect cables from Connectors (CB413, CB403,CB401) in Fig. 2.b. Remove the cap (6) from the Digital Output Terminal inFig. 3.c. Remove 3 screws (7), 1 screw (8) and 2 screws (9)in Fig. 3.d. Remove 1 screw (0) and 5 screws (A) and thenremove the MAIN (1) P.C.B. in Fig