Yamaha-RX397-rec-sm(1) 维修电路原理图.pdf

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1、SERVICE MANUALThis 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 b

2、een 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 r

3、equired 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 prin

4、ciple-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 andspecifi

5、cations 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 your

6、self 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 NOTICE100978SERVICE MANUALSTEREO RECEIVERAMP ADJUSTMENT . . . . . . . . . . . . . . .

7、. . . . . . . . . . 16IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1718DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 20PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 2127BLOCK DIAGRA

8、M . . . . . . . . . . . . . . . . . . . . . . . . . . . 28SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 2931REMOTE CONTROL RAX16 . . . . . . . . . . . . . . . . . . 33PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3442I CONTENTSTO SERVICE PERSONNEL . . . . . . . . . .

9、 . . . . . . . . . . 2IMPEDANCE SELECTOR . . . . . . . . . . . . . . . . . . . . . . 3FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45REMOTE CONTROL PANEL . . . . . . . . . . . . . . . . . . . 5SPECIFICATI

10、ONS . . . . . . . . . . . . . . . . . . . . . . . . . . 67INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . . . 8SELF DIAGNOSIS FUNCTION . . . . . . . . . . . . . . . 915DPX-1200RX-397RX-397 2005 YAMAHA CORPORATION. All righ

11、ts reseved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission. 05.11RadioFans.CN 收音机爱 好者资料库2RX-397RX-397I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand must

12、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 e

13、quivalent to 1500 ohms shuntedby 0.15F.AC LEAKAGETESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETGLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in bothpolarities.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product co

14、ntains 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, E

15、LECTRICAL/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 enclo

16、sure of this product, wash your handsbefore handling food.About Lead Free SolderThe P.C.B.s installed in this unit are soldered using the following solder.“CAUTION”“F251, F252 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 5A, 125V FUSE.”CAUTIONF251, F252 : REPLACE WITH

17、 SAME TYPE 5A, 125V FUSE.ATTENTIONF251, F252 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 5A, 125V.A VSI DE ASI DE BFUNCTI ON P. C. B.Lead Free SolderOPERATI ON P. C. B.Lead Free SolderMAI N P. C. B.Lead Free SolderSide ASide BSMT REFLOW ProcessMI FLOW ProcessSolder DipAmong some types of lead

18、free solder currently available, itis recommended to use one of the following types for therepair work. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:1. As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F)

19、higher than that of the leadsolder, be sure to use a soldering iron suitable to each solder.2. If lead solder must be used, be sure to remove lead free solder from each terminal section of the parts to be replaced and fromthe area around it completely before soldering, or make sure that the lead fre

20、e solder and lead solder melt together fully.RadioFans.CN 收音机爱 好者资料库3RX-397DPX-1200RX-397I IMPEDANCE SELECTORWARNING:Do not change the setting of the IMPEDANCE SELECTOR switchwhen the unit power is switched on, as doing so may damagethe unit.IMPEDANCE SELECTORI FRONT PANEL4RX-397RX-397I REAR PANELSM

21、 U, C modelsM R modelM A model5RX-397DPX-1200RX-397M G, E modelsM L modelI REMOTE CONTROL PANELM RAX166RX-397RX-397I SPECIFICATIONSAUDIO SECTIONMinimum RMS Output Power (Power Amp. Section)L/R, 20 Hz to 20 kHz, 0.04% THD, 8 ohms . . . . . . .50 W + 50 WDynamic Power Per Channel (IHF)8/6/4/2 ohms . .

22、 . . . . . . . . . . . . . . . . . . . . . . . .70/77/89/100 WMaximum Power Per Channel (G, E models)1 kHz, 0.7 % THD, 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . .55 WIEC Power (G, E models)1 kHz, 0.04% THD, 8 ohms . . . . . . . . . . . . . . . . . . . . . . . .52 WMaximum Power (EIAJ) (

23、R, L moels)1 kHz, 10% THD, 8 ohms . . . . . . . . . . . . . . . . . . . . . . . . . .85 WPower Band WidthL/R, 0.08% THD, 22.5 W, 8 ohms . . . . . . . . . .10 Hz to 50 kHzDamping Factor20 Hz to 20 kHz, SPEAKER-A, 8 ohms . . . . . . . . .150 or moreInput Sensitivity/Input ImpedancePHONO MM . . . . . .

24、 . . . . . . . . . . . . . . . . . . .2.5 mV/47 k-ohmsCD, etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 mV/47 k-ohmsMaximum Input SignalPHONO MM, 1kHz, 0.04 % THD . . . . . . . . . . . . . . . . . .115 mVCD, etc., 1kHz, 0.04 % THD . . . . . . . . . . . . . . . . . . . . . . .2.2 VO

25、utput Level/Output ImpedanceREC OUT . . . . . . . . . . . . . . . . . . . . . . . . . .150 mV/1.2 k-ohmsHeadphone Jack Rated Output/Output ImpedanceCD, etc. 1 kHz, 150 mV, 8 ohms, 0.04% THD . . . . . . . . . .0.47 V/330 ohmsFrequency ResponseCD, etc. 20 Hz to 20 kHz . . . . . . . . . . . . . . . . .

26、 . . . . .0 0.5 dBCD, etc. PURE DIRECT ON, 10 Hz to 100 kHz . . . . . . . . . . . .0 1.0 dBRIAA Equalization DeviationPHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 0.5 dBTotal Harmonic Distortion (20 Hz to 20 kHz)PHONO MM to REC OUT (3 V) . . . . . . . . . . . . . . . . .

27、0.02 % or lessCD, etc. to SP OUT (35 W/8 ohms) . . . . . . . . . .0.02 % or lessSignal to Noise Ratio (IHF-A Network)PHONO MM (Input shorted, 5 mV) . . . . . . . . . .82 dB or moreCD, etc. (Input shorted, 150mV) . . . . . . . . . . .108 dB or moreResidual Noise (IHF-A Network)PURE DIRECT ON . . . .

28、. . . . . . . . . . . . . . . . . . . . . . . .100 VChannel SeparationCD, etc. (Input 5.1 k-ohms shorted)1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 dB or more10 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 dB or moreTone Control CharacteristicsBASSBoost/

29、Cut (50 Hz) . . . . . . . . . . . . .+10 dB/-10 dBTurnover Frequency . . . . . . . . . . . . . . . . .350 HzTREBLEBoost/Cut (20 kHz) . . . . . . . . . . . .+10 dB/-10 dBTurnover Frequency . . . . . . . . . . . . . . . . .3.5 kHzContinuous Loudness ControlAttenuation (1 kHz) . . . . . . . . . . . . .

30、 . . . . . . . . . . . . . . . -30 dBGain Tracking Error0 to -60 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 dB or lessGENERALPower SupplyU, C models . . . . . . . . . . . . . . . . . . . . . . . . . . AC 120 V, 60 HzR model . . . . . . . . . . . . . AC 110/120/220/230-240 V, 5

31、0/60 HzA model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240 V, 50 HzG, E models . . . . . . . . . . . . . . . . . . . . . . . . . . AC 230 V, 50 HzL model . . . . . . . . . . . . . . . . . . . . AC 220/230-240 V, 50/60 HzPower Consumption (reference) . . . . . . . . . . . . . . .

32、 . . . 130 WStandby Power Consumption . . . . . . . . . . . . . . . . . . . . . 0.1 WMaximum Power Consumption (R moel)1 kHz, 8 ohms, 10% THD . . . . . . . . . . . . . . . . . . . . . . . 300 WAC Outlet2 Switched OutletR model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 W Max. totalU,

33、 C, G, E, L models . . . . . . . . . . . . . . . . . . 100 W Max. total1 Switched OutletA models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 W Max.Dimensions (W x H x D) . . . . . . . . . . . . . . 435 x 151 x 308 mm(17-1/8 x 5-15/16 x 12-1/8)Weight . . . . . . . . . . . . . .

34、. . . . . . . . . . . . . . . .7.4 kg (16 lbs 5 oz)Finish . . . . . . . . . . . . . .Black Color (U, C, R, A, G, E, L models)Titanium Color (G, E, L models)Accessories . . . . . . . . . . . . . . . . . . . . . . . .Remote Control x 1Battery (AAA, R03, UM-4) x 2Indoor FM Antenna x 1AM Loop Antenna x

35、1* Specifications subject to change without notice.U . USA modelC . Canadian modelR . General modelA . Australian modelG . European modelE . South European modelL . Singapore modelFM SECTIONTuning RangeU, C models . . . . . . . . . . . . . . . . . . . . . . . . .87.5 to 107.9 MHzR, L models . . . .

36、. . . . . . . .87.5 to 108.0/87.50 to 108.00 MHzA, G, E models . . . . . . . . . . . . . . . . . . . . . 87.50 to 108.00 MHz50 dB Quieting Sensitivity (IHF)1 kHz 100% MOD.Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.0 V (17.3 dBf)Stereo . . . . . . . . . . . . . . . . . . . . .

37、. . . . . . . . .25 V (39.2 dBf)Usable Sensitivity (IHF)Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.0 V (11.2 dBf)Selectivityat 400 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 dBSignal to Noise Ratio (IHF)Mono . . . . . . . . . . . . . . . .

38、. . . . . . . . . . . . . . . . . . . . . . . .76 dBStereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 dBHarmonic Distortion (1 kHz)Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.2 %Stereo . . . . . . . . . . . . . . . . . .

39、. . . . . . . . . . . . . . . . . . . . .0.3 %Stereo Separation (1 kHz) . . . . . . . . . . . . . . . . . . . . . . . .45 dBFrequency Response20 Hz to 15 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . .+0.5/-2.0 dBAntenna Input . . . . . . . . . . . . . . . . . . . . . .75 ohms unbalancedAM

40、 SECTIONTuning RangeU, C models . . . . . . . . . . . . . . . . . . . . . . . . . . .530 to 1710 kHzR, L models . . . . . . . . . . . . . . . . .530 to 1710/531 to 1611 kHzA, G, E models . . . . . . . . . . . . . . . . . . . . . . . . 531 to 1611 kHzUsable Sensitivity . . . . . . . . . . . . . . . .

41、 . . . . . . . . . . . .300 V/mAntenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Loop antenna7RX-397DPX-1200RX-397Unit : mm (inch)DIMENSIONSI INTERNAL VIEW435 (17-1/8)151 (5-15/16)130 (5-1/8)267 (10-1/2)21(13/16)18.5(3/4)22.5(7/8)308 (12-1/8)qwertyuio!0!3!2!1!5!3!4!9!7!1!2!8!6

42、qOPERATION (12) P.C.B. (A, G, E, L models)wMAIN (4) P.C.B. (R, L models)eMAIN (2) P.C.B.rMAIN (3) P.C.B.tMAIN (1) P.C.B.yMAIN (5) P.C.B.uFUNCTION (4) P.C.B.iFUNCTION (1) P.C.B.oFUNCTION (2) P.C.B.!0OPERATION (13) P.C.B.!1OPERATION (10) P.C.B.!2OPERATION (3) P.C.B.!3OPERATION (2) P.C.B.!4OPERATION (1

43、) P.C.B.!5OPERATION (8) P.C.B.!6OPERATION (5) P.C.B.!7OPERATION (7) P.C.B.!8OPERATION (4) P.C.B.!9OPERATION (9) P.C.B.8RX-397RX-397I DISASSEMBLY PROCEDURES Remove parts in disassembly order as numbered. Disconnect the power cable from the AC outlet.Fig. 11. Removal of Top Covera. Remove 4 screws ( q

44、 ), 1 screw ( w ) and 4 screws (e ). (Fig. 1)b. Slide the Top Cover rearward to remove it. (Fig. 1)2. Removal of Front Panel Unita. Remove 5 knobs (INPUT, BASS, TREBLE, BALANCEand LOUDNESS).b. Remove 1 screw ( r ) and then remove the SupportTop. (Fig. 1)c. Remove 7 screws ( t ) and then remove the F

45、rontPanel Unit. (Fig. 1)3. Removal of Plate SideRemove 2 push rivets ( y ) and then remove the PlateSide L/R. (Fig. 1)4. Removal of Sub Chassis Unita. Remove 2 screws ( u ) and then slide the Sub ChassisUnit forward. (Fig. 1)b. Loosen the harness fixture fixing the cable.c. Remove connectors CB103,

46、CB401, CB404, CB606and CB611 and then remove the Sub Chassis Unit.(Fig. 1)qqwerttyyuuKnobKnobTop CoverSub Chassis UnitPlate Side LPlate Side RCB404CB103CB606CB611CB401Support TopFront Panel Unit9RX-397DPX-1200RX-397I SELF DIAGNOSIS FUNCTIONThis product has a built-in self diagnosis function (DIAG) t

47、o facilitate inspection, measurement and determination of a faultyitem, if any. There are 8 DIAG menu items, each having sub-menu items.No. DIAG menuSub-menu1DISPLAY CHECK1. VFD CHECK (Initial display)2. VFD DISP OFF (All segments OFF)3. VFD DISP ALL (All segments ON 100%)4. VFD DIMMER (All segments

48、 ON 50%)5. CHECKED PATTERN (ON in lattice)2FACTORY PRESET1. PRESET INHI (memory initialization inhibited)2. PRESET RSRV (memory initialized)3AD DATA CHECK1. DC/PS (protection)2. THM L, R3. REC-OUT (No applied to this model)4. K0 / K1 (panel key)4XM STATUS1. XMS1 (No applied to this model)2. XMS2 (No

49、 applied to this model)5PROTECTION SETTING1. PS_Lo :2. PS_Hi :3. DC_Lo :4. DC_Hi :5. TEMP :6PROTECTION HISTORY1. history 12. history 23. history 34. history 47SOFT SWITCH1. SW MODE : PCB (/MODEL/FNC)2. MODEL SETTING : RX397 (/RX797/RX497)3. DESTINATION : UC (/RL/A/BG)4. TUNER DESTINATION : (/RL/ABG)

50、5. TUNER TYPE : NRM (/RDS/XM)6. ZONE2 : EXIST (/NOT) (No applied to this model)8MICROPROCESSOR INFORMATION1. VERSION2. CHECK SUM3. OPE / XM4. PORT5. EE SUM10RX-397RX-397G Starting DIAGPress the “STANDBY/ON” key of the main unit while simul-taneously pressing the “FM/AM” key and the “8” key to acti-v