Yamaha-RS300-rec-sm(1) 维修电路原理图.pdf

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1、R-S3001 0 11 9 5SERVICE 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 cally YAMAHA Products, are already known and understood by t

2、he 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 to perform as specifi ed. For these reasons, we advise all YA

3、MAHA 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 authorization, certifi cation or recognition 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, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modific

5、ations 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 destroy expensive components. Discharge any static electricit

6、y 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 power to the unit. CONTENTSTO SERVICE PERSONNEL .2IMPEDANCE SEL

7、ECTOR .3FRONT PANELS .4REAR PANELS .56REMOTE CONTROL PANEL .7SPECIFICATIONS .89INTERNAL VIEW .10SERVICE PRECAUTIONS .10DISASSEMBLY PROCEDURES . 1113UPDATING FIRMWARE .1417SELF-DIAGNOSTIC FUNCTION .1829AMP ADJUSTMENT .3031DISPLAY DATA .3233IC DATA .3436BLOCK DIAGRAM .37PRINTED CIRCUIT BOARDS .3853PIN

8、 CONNECTION DIAGRAMS .54SCHEMATIC DIAGRAMS .5560REPLACEMENT PARTS LIST .6171REMOTE CONTROL .72ADVANCED SETUP .7374RECEIVER10.10P.O.Box 1, Hamamatsu, JapanCopyright 2010 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically wi

9、thout permission.R-S300RadioFans.CN 收音机爱 好者资料库2R-S300R-S3001. Critical Components InformationComponents having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed.2. Leakage Current Measurement (For 120V Models Only)When servic

10、e 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. TO SERVICE PERSONNEL Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC

11、plug in both polarities.WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEFor U model“CAUTION”“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 5A, 125V FUSE.”For C modelCAUTIONF1: REPLACE WITH SAME TYPE 5A, 125V FUSE.ATTENTIONF1: UTILISER UN FUSI

12、BLE DE RECHANGE DE MME TYPE DE 5A, 125V.All of the P.C.B.s installed in this unit and solder 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 +

13、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 40C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder.About lead free solderThis product contains

14、 chemicals known to 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

15、inhale solder fumes 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.WARNING: CHEMICAL CONTENT NOTICE!RadioFans.CN 收音机爱 好者资料库3R-S300R-S300 IMPEDANCE SELECTORWARNING:Do not change th

16、e setting of the IMPEDANCE SELECTOR switch when the unit power is switched on, as doing so may damage the unit.IMPEDANCE SELECTOR4R-S300R-S300R-S300 (U, C, R, A, L models)R-S300 (G model) FRONT PANELS5R-S300R-S300R-S300 (A model) REAR PANELSR-S300 (R model)R-S300 (U, C models)6R-S300R-S300R-S300 (L

17、model)R-S300 (G model)7R-S300R-S300 REMOTE CONTROL PANELRAX238R-S300R-S300 FM SectionTuning RangeU, C models .87.5 to 107.9 MHzR, A, G, L models .87.50 to 108.00 MHz50 dB Quieting Sensitivity (IHF)(1 kHz, 100 % MOD.)Mono .3.0 V (20.8 dBf)Signal to Noise Ratio (IHF)Mono/Stereo .74 dB/70 dBHarmonic Di

18、stortion (1 kHz) Mono/Stereo .0.3 %Antenna Input . 75 ohms unbalanced AM SectionTuning RangeU, C models .530 to 1,710 kHzR, A, G, L models .531 to 1,611 kHzAntenna .Loop antenna GeneralPower SupplyU, C models .AC 120 V, 60 HzR model .AC 110-120/220-240 V, 50/60 HzA model .AC 240 V, 50 HzG model .AC

19、230 V, 50 HzL model .AC 220-240 V, 50/60 HzPower Consumption .150 WStandby Power Consumption . 0.5 W or lessYID-W10 Standby Power Consumption (YID-W10 connect) . 1.2 W or lessiPod Charge Power Consumption . 30 W or lessMaximum Power Consumption (1 kHz, 8 ohms, 10 % THD)R model .280 WDimensions (W x

20、H x D) .435 x 151 x 387 mm (17-1/8 x 6 x 15-1/4)Weight .8.8 kg (19.4 lbs.)FinishBlack color . U, C, R, A, G, L modelsSilver color . R, A, G, L modelsAccessoriesRemote control .x 1Indoor FM antenna (1.4 m) .x 1AM loop antenna (1.2 m) .x 1Batteries (R6, AA, UM-3) .x 2* Specifications are subject to ch

21、ange without notice.U .U.S.A. model C .Canadian modelR .General model A .Australian modelG .European modelL.Singapore model SPECIFICATIONS Audio SectionMinimum RMS Output Power (Power Amp. Section) (20 Hz to 20 kHz)(8 ohms, 0.04 % THD) .50 W + 50 WDynamic Power Per Channel (IHF)(8/6/4/2 ohms) .70/77

22、/89/100 WMAX Power Per Channel (1 kHz, 0.7 % THD, 4 ohms)G model .55 WIEC Power (1 kHz, 0.04 % THD, 8 ohms)G model .52 WPower Band Width(0.06 % THD, 25 W, 8 ohms) .10 Hz to 50 kHzDamping Factor (SPEAKER-A)(1 kHz, 8 ohms) . 150 or moreMaximum Effective Output Power (1 kHz, 10 % THD, JEITA)R, L models

23、(8 ohms) .85 WInput Sensitivity/Input ImpedancePHONO (MM) .3.5 mV / 47 k-ohmsCD, etc. .200 mV / 47 k-ohmsMaximum Input Signal (1 kHz) PHONO (MM) (0.003 % THD) .60 mV or moreCD, etc. (0.5 % THD) .2.2 V or moreOutput Level/Output ImpedanceCD, etc. (Input, 1 kHz, 200 mV)REC OUT .200 mV / 1.0 k-ohmsCD,

24、etc. (Input, 1 kHz, 200 mV, 8 ohms load)Headphone Jack .340 mV / 470 ohmsFrequency ResponseCD, etc. (20 Hz to 20 kHz) .0 0.5 dBCD, etc. Pure DIRECT ON (10 Hz to 100 kHz) .0 1.0 dBRIAA Equalization DeviationPHONO (MM) .0.5 dBTotal Harmonic Distortion (20 Hz to 20 kHz)PHONO (MM) to REC OUT (3 V) . 0.0

25、25 % or lessCD, etc. to SP OUT (25 W, 8 ohms) .0.015 % or lessSignal to Noise Ratio (IHF-A Network)PHONO (MM) (5 mV Input shorted) . 87 dB or moreCD, etc. (Pure DIRECT ON) (200 mV input shorted) . 100 dB or moreResidual Noise (IHF-A Network) .30 VChannel SeparationCD, etc. (Input 5.1 k-ohms shorted)

26、1 kHz . 65 dB or more10 kHz . 50 dB or moreTone Control CharacteristicsBASSBoost/Cut (50 Hz) . 10 dBTurnover frequency .350 HzTREBLEBoost/Cut (20 kHz) . 10 dBTurnover frequency .3.5 kHzContinuous Loudness ControlAttenuation (1 kHz) .-30 dBGain Tracking Error(0 to -99 dB) .0.5 dB or less9R-S300R-S300

27、 DIMENSIONSUnit: mm (inch)iPhone, iPod, iPod classic, iPod nano and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.Bluetooth is a registered trademark of the Bluetooth SIG and is used by Yamaha in accordance with a license agreement.Front viewTop view435 (17-1/8)

28、335 (13-1/4)50(2)151 (5-7/8)130 (5-1/8)21(7/8)20.5(3/4)25.5(1)387 (15-1/4)341 (13-3/8)55(2-1/8)46(1-3/4)240 (9-1/2) 6010R-S300R-S300OPERATION (12) P.C.B.OPERATION (13) P.C.B.OPERATION (14) P.C.B. (R model) MAIN (3) P.C.B. AM/FM TUNERDOCK P.C.B.FUNCTION (2) P.C.B.FUNCTION (3) P.C.B. FUNCTION (1) P.C.

29、B. MAIN (2) P.C.B.MAIN (1) P.C.B.POWER TRANSFORMEROPERATION (11) P.C.B.OPERATION (6) P.C.B.OPERATION (1) P.C.B.OPERATION (10) P.C.B. OPERATION (2) P.C.B.OPERATION (7) P.C.B.OPERATION (5) P.C.B.OPERATION (4) P.C.B.OPERATION (3) P.C.B.OPERATION (8) P.C.B.Top viewFront view91120211918221210121315161714

30、53487612345678910111213141516171819202122 INTERNAL VIEW SERVICE PRECAUTIONSSafety measures Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves. Note that the capacitors indicated below are da

31、ngerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity. The time required for

32、 discharging is about 30 seconds per each.C135, C136 on MAIN (1) P.C.B.For details, refer to “PRINTED CIRCUIT BOARDS: MAIN (1) P.C.B.”.11R-S300R-S300Top coverFront panel unitKnob VOLKnob INPUTKnob TCCap POWERCap DIRECTSupport top DISASSEMBLY PROCEDURESFig. 1(Remove parts in the order as numbered.)Di

33、sconnect the power cable from the AC outlet.1. Removal of Top Covera. Remove 4 screws (), 4 screws () and screw (). (Fig. 1)b. Remove the top cover. (Fig. 1)2. Removal of Front Panel Unita. Remove screw () and then remove the support top. (Fig. 1)b. Pull out the knobs and caps. (Fig. 1)c. Remove 7 s

34、crews (). (Fig. 1)d. Remove the front panel unit. (Fig. 1)12R-S300R-S300Sub-chassis unitHookHookAM/FM tunerFUNCTION (1) P.C.B.DOCK P.C.B.FUNCTION (2) P.C.B.FUNCTION (3) P.C.B.CB101CB503CB2CB21CB14CB506CB403CB504CB505CB513CB706CB801CB805CB11Rear viewFig. 3Fig. 23. Removal of Sub-chassis Unita. Remove

35、 2 screws () and screw (). (Fig. 2)b. Remove CB11, CB101, CB503505, CB513, CB706, CB801 and CB805. (Fig. 2)c. Release 2 hooks and then remove the sub-chassis unit. (Fig. 2)4. Removal of AM/FM Tunera. Remove 2 screws (). (Fig. 3)b. Remove CB403. (Fig. 2)c. Remove the AM/FM tuner. (Fig. 2)5. Removal o

36、f FUNCTION (1)(3) and DOCK P.C.B.sa. Remove 7 screws (). (Fig. 3)b. Remove screw () and screw (). (Fig. 2)c. Remove CB2, CB14, CB21 and CB506. (Fig. 2)d. Remove the FUNCTION (1)(3) P.C.B.s and DOCK P.C.B. together. (Fig. 2)13R-S300R-S300Sub-chassis unitRubber sheet and clothGround lead Chassis cover

37、Rubber sheet and clothMAIN (1) P.C.B.Fig. 4When checking the P.C.B.s: Put the rubber sheet and cloth over this unit. Then place the sub-chassis unit on the cloth and check it. (Fig. 4) Connect the ground point of the sub-chassis unit to the chassis with a ground lead or the like. (Fig. 4) Reconnect

38、all cables (connectors) that have been disconnected. When connecting the flexible flat cable, be careful with polarity.When checking the MAIN (1) P.C.B.: Spread the rubber sheet and the cloth. Then place this unit on the cloth upside down. (Fig. 5) Remove 6 screws () and then remove the chassis cove

39、r. (Fig. 5)Fig. 514R-S300R-S300When the following parts are replaced, the firmware must be updated to the latest version.FUNCTION P.C.B.Microprocessor (IC502 on FUNCTION P.C.B.) Confirmation of firmware version and checksumBefore and after updating the firmware, check the firmware version and checks

40、um by using the self-diagnostic function menu.Start up the self-diagnostic function and select “1. FIRMWARE VERSION” menu.Using the sub-menu, have the firmware version and checksum displayed, and note them down.(See “SELF-DIAGNOSTIC FUNCTION”)* When the firmware version is different from written one

41、, perform the UPDATING FIRMWARE from the beginning. Initializing the back-up IC (EEPROM: IC503 on FUNCTION P.C.B.)After updating the firmware, the back-up IC MUST be initialized by the following procedure to have proper memorization of the set up information.Start up the self-diagnostic function and

42、 select “3. FACTORY PRESET” menu.(See “SELF-DIAGNOSTIC FUNCTION”)Select “3. PRESET RSRV”, press the “ ” (Power) key to turn off the power once and turn on the power again. Then the back-up IC is initialized. RS-232C conversion adaptor (Part No.: WR492800) UPDATING FIRMWAREPin No.2 RxDPin No.2 RxDPin

43、 No.3 TxDPin No.3 TxDPin No.5 GNDPin No.5 GNDPin No.7 RTSPin No.7 RTSPin No.8 CTSPin No.8 CTS Required Tools Firmware downloader program . FlashSta.exe Firmware . RSx00_xxx.motRSx00_xxx.id RS-232C cross cable “D-sub 9 pin female”(Specifications) Preparation and precautions Download the firmware down

44、loader program and the latest firmware from the specified download source to the same folder of the PC. Prepare the above specified RS-232C cross cable. While writing the firmware, keep the other application software on the PC closed.It is also recommended to keep the software on the task tray close

45、d as well.15R-S300R-S300Serial port (RS-232C)RS-232C cross cablePCThis unitRS-232C conversion adaptorSW7FLASHUCOMOTHERFlexible flat cable (9P)Writing port(CB509 on FUNCTION P.C.B.) Connection* Disconnect the power cable of this unit from the AC outlet. Set the switch (SW7) of RS-232C conversion adap

46、tor to the “FLASH UCOM” position. (Fig. 1) Connect the writing port (CB509 on FUNCTION P.C.B.) located on the rear panel of this unit to the serial port (RS-232C) of the PC with RS-232C cross cable, RS-232C conversion adaptor and flexible flat cable as shown below.(Fig. 1)Fig. 1 Operation procedure1

47、. Connect the power cable of this unit to the AC outlet.The power to this unit is supplied and the microprocessor is in the writing mode.2. Start up FlashSta.exe.The screen appears as shown below. (Fig. 2)3. Select the data to be transmitted and port. (Fig. 2) Select ProgramSelect Internal flash mem

48、ory. RS-232CSelect the port of RS-232C.* For selection of the port, COM1 to 4 can be used.As COM5 or higher port cannot be used, select out of COM 1 to 4 of the setting on the PC side.Fig. 2Select Internal flash memorySelect the port of RS-232C16R-S300R-S300Fig. 3When Refer. is clicked, the “Open” s

49、creen appears.4. Click Refer. and select the firmware name. (Fig. 3)* The ID and MCU Type are loaded automatically when the file is selected. (Fig. 3)Click OK. (Fig. 3)5. Click Setting, and set the baud rate. (Fig. 4)Fig. 41152004017R-S300R-S300Fig. 56. Click E.P.R., then the “Erase” screen appears.

50、 (Fig. 5)7. Click OK to start writing. (Fig. 5)Writing being executed.10. Disconnect the power cable of this unit from the AC outlet.11. Remove the RS-232C conversion adaptor and flexible flat cable from the writing port of this unit.12. Connect the power cable of this unit to the AC outlet, start u