Yamaha-CRXE100-cs-sm 维修电路原理图.pdf

RX-E100RX-E100SERVICE MANUALI CONTENTSTO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . .1FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .3INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . . .5TEST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67AMP ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . .7TUNER ADJUSTMENTS . . . . . . . . . . . . . . . . . . . 810IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1113BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . 1415PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . 1624PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . .25SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . 2628REMOTE CONTROL TRANSMITTER . . . . . . . . . . . .29PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3038SYSTEM CONTROL . . . . . . . . . . . . . . . . . . . . . 3948NX-E100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49This 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 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 personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHARetailer 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 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 servicedepartments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable andspecifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact thedistributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your 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.IMPORTANT NOTICE100684SERVICE MANUALRX-E100/NX-E100MINI COMPONENT SYSTEM CRX-E100CRX-E100 is composed of RX-E100 and CDX-E100.This is a service manual for the RX-E100 (including NX-E100).For service manuals of CDX-E100, please refer to the service manuals with the followingpublication numbers :CDX-E100100685RadioFans.CN 收音机爱 好者资料库RX-E100RX-E100I TO SERVICE PERSONNEL1. Critical Components Information.Components having special characteristics are marked Zand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only).When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.AC LEAKAGETESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETWARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/orplastic (where applicable) components may also contain traces of chemicals found by the California Health andWelfare 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 FORANY REASON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumesor expose eyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your handsbefore handling food.1M U, C, R, A modelsM B, G modelsI FRONT PANELSGLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in bothpolarities.RadioFans.CN 收音机爱 好者资料库RX-E100RX-E1002I REAR PANELSM U modelM C modelM R modelM A modelM B modelM G modelRX-E100RX-E100I FM SECTIONTuning RangeU, C models . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9MHzA, B, G models . . . . . . . . . . . . . . . . . . . 87.50 to 108.00MHzR model . . . . . . . . . . . . . . 87.5 to 108.0/87.50 to 108.00MHzUsable Sensitivity (75 )Mono (S/N 30dB) U, C, R models . . . . . . . . . . . . . . . . 1.5VDIN, Mono (S/N 26dB) A, B, G models . . . . . . . . . . . . 1.8VAlternate Channel SelectivityU, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75dBSelectivity (two signals, 40kHz Dev.)A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55dBSignal-to-Noise RatioMono/Stereo (IHF)U, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77/71dBMono/Stereo (DIN-weighted, 40kHz Dev.)A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71/65dBHarmonic DistortionMono/Stereo (1kHz) . . . . . . . . . . . . . . . . . . . . . . . . 0.5/1.0%Frequency Response20Hz to 15kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 1.5dBStereo Separation1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40dBI AUDIO SECTIONMinimum RMS Output Power per Channel20Hz to 20kHz, 0.1% THD, 6U, C, A, B, G models . . . . . . . . . . . . . . . . . . . . 40W + 40W1kHz, 0.07% THD, 6 . . . . . . . . . . . . . . . . . . . . 50W + 50WMaximum Power per Channel (EIAJ)1kHz, 10% THD, 6 (R model only) . . . . . . . . . 60W + 60WDynamic Power per Channel (IHF)8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W + 50W6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65W + 65W4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75W + 75W2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80W + 80WDIN Standard Output Power per Channel1kHz, 0.7% THD, 4 (G model only) . . . . . . . . . 60W + 60WDynamic Headroom (6)U, C, models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0dBIEC Power1kHz, 0.04% THD, 6 (G model only) . . . . . . . . 50W + 50WPower Band Width0.1% THD, 30W/6 . . . . . . . . . . . . . . . . . . . 10Hz to 50kHzDamping Factor20Hz to 20kHz, 6 . . . . . . . . . . . . . . . . . . . . . . . .60 or moreInput Sensitivity/ImpedanceCD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47kMaximum Input Signal Level (1kHz, 0.5% THD)CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0VOutput Level/ImpedanceREC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/1.2kSUB WOOFER (50Hz) . . . . . . . . . . . . . . . . . . . . . . 2V/730Headphone Jack Rated Output/ImpedanceCD, etc 1kHz, 150mV, 6 . . . . . . . . . . . . . . . . . 0.43V/330Frequency Response (20Hz to 20kHz)CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00.5dBTotal Harmonic Distortion (20Hz to 20kHz)CD, etc to MAIN SP OUT (20W/6) . . . . . . . . . . . . . 0.04%Signal-to-Noise Ratio (IHF-A-Network)CD, etc, Input Shorted (150mV) . . . . . . . . . . . . . . . . . . 93dBResidual Noise (IHF-A-Network)SP OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100VChannel Separation (Vol. 30dB)CD, etc, Input 5.1k Shorted, 1kHz/10kHz . . . . .60dB/45dBTone Control CharacteristicsBASS: Boost/cut . . . . . . . . . . . . . . . . . . . . 10dB (50Hz)Turnover Frequency . . . . . . . . . . . . . . . . . 350HzTREBLE : Boost/cut . . . . . . . . . . . . . . . . . . . 10dB (20kHz)Turnover Frequency . . . . . . . . . . . . . . . . . 3.5kHzFilter CharacteristicsSUB WOOFER (L.P.F.) . . . . . . . . . . . . . fc = 100Hz, 6dB/oct.I SPECIFICATIONS3I AM SECTIONTuning RangeU, C models . . . . . . . . . . . . . . . . . . . . . . . .530 to 1710kHzA, B, G models . . . . . . . . . . . . . . . . . . . . . .531 to 1611kHzR model . . . . . . . . . . . . . . . . 530 to 1710/531 to 1611kHzUsable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V/mSignal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . 50dBI TUNER SECTIONTuner Output LevelFM (1kHz)100% mod. U, C, R models . . . . . . . . . . . . . . . . . . . 500mV40kHz Dev. A, B, G models . . . . . . . . . . . . . . . . . . . 270mVAM (30% mod., 1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . 150mVI GENERALPower SupplyU, C models . . . . . . . . . . . . . . . . . . . . . . . . AC 120V, 60HzA model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240V, 50HzB, G models . . . . . . . . . . . . . . . . . . . . . . . . AC 230V, 50HzR model . . . . . . . . . . . . . . AC 110/120/220/240V, 50/60HzPower ConsumptionU, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110WR, A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . 100WAC OutletsSwitched x 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100W maxDimensions (W x H x D) . . . . . . . . . . . . . . 217 x 108 x 312mm(8-9/16 x 4-1/4 x 12-5/16)Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 kg (9 lbs. 14 oz)Accessories . . . . . . . . . . . . . . . . . . . . . . AM loop antenna x 1Indoor FM antenna x 1Remote Control Transmitter x 1Battery (size UM-4E, R03) x 4* Specifications subject to change without notice.U . USA modelC . Canadian modelA . Australian modelB . British modelG . European modelR . General modelRX-E100RX-E1004I INTERNAL VIEWqP. C. B. MAIN (6)wP. C. B. MAIN (1)eP. C. B. TUNERrP. C. B. MAIN (2)tP. C. B. OPERATIONyPOWER TRANSFORMERuP. C. B. MAIN (4)iP. C. B. MAIN (3)qrweiytuG DIMENSIONSUnits : mm (inch)275(10-13/16)22(7/8)15(9/16)8(5/16)312(12-5/16)217(8-9/16)100(3-15/16)108(4-1/4)RX-E100RX-E100Fig. 1qqTop CoverFanwwertFig. 2Amp UnityFig. 3I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.)1. Removal of Top Covera. Remove 4 screws ( q ) and 4 screws ( w ) in Fig.1.5y2. Checking the Amp Unit and replacing partsa. Disconnect the power plug from AC outlet.b. Remove 2 screws ( e ) attaching the rear panel tothe chassis. (Fig. 2)c. Disconnect the connector for the fan.d. Remove 3 screws ( r, t ) attaching the fan tothe chassis and then remove the fan. (Fig. 2)e. Remove 3 screws ( y ) attaching the Main P.C.B.to the Heat Sink. (Fig. 2)f. Loosen the wiring harness.g. Move the Amp Unit toward the rear. (Fig. 2)h. As shown in Fig. 3, set the Amp Unit upright.i. Fit insulating material (thick paper, etc.)to preventthe chassis and the transformer from contacting theMain P.C.B.j. Using a wire, connect the pin jack ground to thechassis.(If they are left unconnected, the grounding remainsopen and the unit fails.)k. Connect the power plug and turn on the powerswitch.l. When replacing parts, remove 5 screws ( u, i )fixing the P.C.B. Tuner and then remove the P.C.B.Tuner. (Fig. 3)ui(Copper)(Copper)(Copper)RX-E100RX-E1006ITEST MODESTANDBY/ON Key is pushed while pushing DISPLAY Key and AUTO/MANL Key.TEST MODE indication.PRESET/TUNING B KeyTest mode numberup.PRESET/TUNING N KeyTest mode numberdown.PRESET/BAND KeyExecutive test mode.STANDBY/ON KeyPOWER OFFThe completionof test mode.POWER Off conditionTEST MODE UPTEST MODE DOWNWhen present mode iscarried out.Test mode isfinished.DISPLAYFUNCTIONPRESET/BAND Key01 DEST-B,G02 FL+CLEARStop/Low/HighDESTINATIONR (AM9k/FM:50k)R (AM10k/FM100k)AB,GU,CJDisplayR9kR10kAB, GU, CJ(*1)03 FL CHECK04 FANStop05 Ver-Z1.0206 SUM5b4d0599.05.28TEST PROGRAM MODE FUNCTION DESCRIPTIONIndication for destinaion. (*1)All FL segments and BACKUPRAM CLEAR.All FL segments and circuit board short circuit inspection.Cooling fan drive OUTVersion information of themicrocomputer software. (*2)The date of the microcomputer software. (*2)The calculation of SUM is done andindicated after that. (*2)1st : all segments light2nd : RAM CLEAR1st : all segments light2nd : Even-numbered segments and even numbered digits are turned on.3rd : Odd -numbered segments and odd- numbered digits are turned on.It is changed to the dateindication.It is changed to versionindication.Re-calculation(*2) Contents of indication change by the microcomputer software. (Note that memories set by the user will be erased.)Also, the preset contents of the tuner are restored to the factory preset ones.PRESETEDITVOLUMERDS PSPTY RT CTPTY HOLDSTEREOAUTOTIMERSLEEPTUNEDMEMORYTIMERSTANDBYEDITVOLUMERDSPTYCTSTEREOAUTOTIMERPRESETPSRTPTY HOLDSLEEPTUNEDMEMORYTIMERSTANDBYPRESETEDITVOLUMERDS PSPTY RT CTPTY HOLDSTEREOAUTOTIMERSLEEPTUNEDMEMORYTIMERSTANDBYFL CHECK1st2nd3rdRX-E100RX-E1007Preset groupABCDEP1P2P3P4P5P6P7P8CAUTION : When executing Test mode No. 2 RAM CLEAR, be sure to write down the preset memory contents of thetuner, using a table like the one shown below. Execution of RAM CLEAR will set the memory contents of thetuner back to the factory preset state which means that all the memories preset by the user will be erased.G FACTORY PRESETNOTE 1) PRESET PAGE. A : FMB : AMC : FMD : AM E : FMBANDFM (MHz)AM (kHz)MARKETSU, C, R(100k/10k)A, B, G, R,(50k/9k)U, C, R(100k/10k)A, B, G, R(50k/9k)8107.9107.90144014407106.1106.1013501350688.188.109009005107.9108.00171016114101.5101.50530531387.587.5014001404295.195.1010801080198.198.10630630PRESET No.I AMP ADJUSTMENTSGConfirmation of Idling Current1) No signal applied.2) Non-loaded condition.3) Aging is not neccessary.NoteIf the measured voltage exceeds 5mV, cut the lead wire of R197(L ch)or R204(R ch) and then check again if each measured value satisfies therating.ItemMAIN LMAIN RTest PoinR214(Between terminal)R220(Between terminal)Rating (DC)0.1mV5mVNote)If R197(L ch) or R204(R ch) have already been cut off andidling current does not flow, reconnect R197(1k) orR204(1k).Q112 and Q115 are transistors for temperature correction.Apply silicone grease to the contact surface with the heatsink.R197 (L ch)R204 (R ch)Cut OFF0.1mV 5mV (DC)R214 (L ch)R220 (R ch)R220R214R204R197Q115Q112* Confirm that the idling current is 0.25mV 15mV after 60 minutes.RX-E100RX-E1008I TUNER ADJUSTMENTSG Measuring InstrumentsFM signal generator (FM SG)Stereo signal generator (SSG)AM signal generator (AM SG)Distortion meter (DIST. M)AC voltmeter (ACVM)DC voltmeter (DCVM)OscilloscopeLow pass filter (YLF-15, fc=15kHz)OscillatorG Dummy antennaAM SG(50)AM dummy