Yamaha-R840-rec-sm 维修电路原理图.pdf

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1、R-840/NS-BP300Copyright 2009 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission.1 0 11 5 3SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their

2、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 the users, and have therefore not been restated.WARNING: Failure to follow appropriate service and safety procedures when servicin

3、g 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 YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service repre

4、sentative.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 technical capabilities, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and

5、applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA 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

6、 discrepancy appear to exist, please contact the distributors Service Division.WARNING: Static discharges can destroy 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 bu

7、ss).IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. CONTENTSTO SERVICE PERSONNEL .2SYSTEM COMPOSITION .3FRONT PANELS .46REAR PANELS .711REMOTE CONTROL PANELS .12SPECIFICATIONS .1315INTERNAL VIEW .16DISASSEMBLY PROCEDURES .171

8、9UPDATING FIRMWARE .2024SELF-DIAGNOSTIC FUNCTION .2537CONFIRMATION OF IDLING CURRENT OF AMP UNIT .3839DISPLAY DATA .40IC DATA .4144PIN CONNECTION DIAGRAMS .4547BLOCK DIAGRAM .49PRINTED CIRCUIT BOARDS .5062SCHEMATIC DIAGRAMS .6370REPLACEMENT PARTS LIST .7179REMOTE CONTROL .80SYSTEM CONNECTOR .818209.

9、11P.O.Box 1, Hamamatsu, JapanRECEIVER/SPEAKER PACKAGER-840/NS-BP300 When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD-640 as a set for the repair work. The MCR-940 consists of the R-840, BD-940 and NS-BP300.The MCR-840 consists of the R-840, DV

10、D-840 and NS-BP300.The MCR-640 consists of the R-840, CD-640 and NS-BP300.This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers:BD-940: 101154/DVD-840: 101155/CD-640: 101156MICRO COMPONENT SYSTEMMCR-940/MCR-8

11、40/MCR-640RadioFans.CN 收音机爱 好者资料库2R-840/NS-BP300R-840/NS-BP300For U model“CAUTION”“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 3.5A, 125V FUSE.”For C modelCAUTIONF1: REPLACE WITH SAME TYPE 3.5A, 125V FUSE.ATTENTIONF1: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE

12、3.5A, 125V.This product contains 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 yo

13、ur skin! When soldering, do not 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.1. Critical Components InformationComponents having special characteristics are

14、marked and must be replaced with parts having specifications equal to those originally installed.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 im

15、pedance should be equivalent to 1500 ohms shunted by 0.15 F.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 +

16、 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 40C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder. TO SERVICE PERSONNEL L

17、eakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!About lead free solderRadioFans.CN 收音机爱 好者资料库3R-840/NS-BP300R-840/NS-BP300 SYSTEM COMPOSITIO

18、NWhen accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD-640 as a set for the repair work.The MCR-940 consists of the R-840, BD-940 and NS-BP300.The MCR-840 consists of the R-840, DVD-840 and NS-BP300.The MCR-640 consists of the R-840, CD-640 and NS-

19、BP300.This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers:BD-940: 101154/DVD-840: 101155/CD-640: 101156 NS-BP300 NS-BP300 BD-940 R-840 NS-BP300 NS-BP300 DVD-840 NS-BP300 NS-BP300 CD-640MCR-940MCR-840MCR-640

20、 R-840 R-8404R-840/NS-BP300R-840/NS-BP300 FRONT PANELSTop viewFront viewC, T, K, A, B, G, L, V modelsC, T, K, A, L, V modelsA, B modelsR-8405R-840/NS-BP300R-840/NS-BP300B, G models6R-840/NS-BP300R-840/NS-BP300NS-BP300C, T, K, A, B, G, L, V models7R-840/NS-BP300R-840/NS-BP300 REAR PANELSC modelT mode

21、lR-8408R-840/NS-BP300R-840/NS-BP300K modelA model9R-840/NS-BP300R-840/NS-BP300G modelB model10R-840/NS-BP300R-840/NS-BP300L modelV model11R-840/NS-BP300R-840/NS-BP300NS-BP300C, T, K, A, B, G, L, V modelsC, K, A, B, G, L, V modelsT model12R-840/NS-BP300R-840/NS-BP300 REMOTE CONTROL PANELSMCR-940MCR-8

22、40MCR-640B, G, F modelsC, T, K, A, L, V modelsG, F modelsC, L, V modelsB, G modelsKey colorsA. RedB. GreenC. YellowD. Blue13R-840/NS-BP300R-840/NS-BP300 SPECIFICATIONS Audio SectionMinimum RMS Output Power (Power Amp. Section) (L/R drive, 1 kHz, 10 % THD, 6 ohms)C, T, K, A, B, G, V models .65 W + 65

23、 WL model .60 W + 60 WDynamic Power Per Channel (IHF) (6 / 4 / 2 ohms)C, T, K, A, B, G, V models .60 / 75 / 100 WL model .55 / 70 / 92 WMAX. Power Per Channel (1 kHz, 0.7 % THD, 4 ohms) B, G models .64 W + 64 WIEC Power (1 kHz, 0.1 % THD, 6 ohms) B, G models .52 W + 52 WMaximum Power (JEITA) (1 kHz,

24、 10 % THD, 6 ohms) L, V modelsV model .65 WL model .60 WPower Band Width (MAIN L/R drive, 0.1 % THD, 30 W, 6 ohms) .10 Hz to 50 kHzDamping Factor (20 Hz to 20 kHz, 6 ohms) .60 or moreInput Sensitivity/Input Impedance Player etc. . 200 mV / 47 k-ohmsMaximum Input Voltage (1 kHz, 0.5 % THD)DVD etc. .2

25、.8 VRated Output Voltage/Output Impedance SUBWOOFER .1.2 VHeadphone Jack Rated Output/Output Impedance (1 kHz, 200 mV, 8 ohms)Player etc. . 130 mV / 8 ohmsFrequency Response (20 Hz to 20 kHz)Player etc. . 0 0.5 dBTotal Harmonic Distortion (20 Hz to 20 kHz, 30 W, 6 ohms)Player etc. to SP OUT .0.04 %

26、or lessSignal to Noise Ratio (IHF-A network)Player (Input shorted 200 mV) . 100 dB or moreResidual Noise (IHF-A network)PURE DIRECT ON .110 VChannel Separation (DVD etc., Input 5.1 k-ohms shorted)1 kHz / 10 kHz . 60 dB or more / 45 dB or moreTone Control Characteristics BassBoost/Cut .10 dB, step 50

27、 HzTurnover frequency .350 HzTrebleBoost/Cut .10 dB, step 20 kHzTurnover frequency .3.5 kHz FM SectionTuning Range C model .87.5 to 107.9 MHzT, K, A, B, G, L, V models .87.50 to 108.00 MHz50 dB Quieting Sensitivity (IHF) (1 kHz, 100 % MOD.)Mono .2.8 V (20.2 dBf)Signal to Noise Ratio (IHF) Mono .73 d

28、BStereo .70 dBHarmonic Distortion (1 kHz) Mono .0.5 %Stereo .0.5 %Antenna Input . 75 ohms unbalanced DAB Section A, B modelsTuning Range .174.0 to 240 MHz (BAND III) GeneralPower Supply C model .AC 120 V, 60 HzT model .AC 220 V, 50 HzK model .AC 220 V, 60 HzA model .AC 240 V, 50 HzB, G models .AC 23

29、0 V, 50 HzL model . AC 220240 V, 50/60 HzV model . AC 110120 V, 60 HzPower Consumption C, T, K, L, V models .110 WA, B, G models .115 WStandby Power Consumption (reference data) .0.3 W or lessMaximum Power Consumption (1 kHz, 10 % THD, 6 ohms) V model .400 WDimensions (W x H x D) .215 x 110 x 348 mm

30、 (8-1/2 x 4-3/8 x 13-3/4)Weight .5.7 kg (12.6 lbs.)Finish Black color .C, T, K, A, B, G, L, V modelsSilver color .C, T, K, A, B, G, L, V modelsAccessoriesfor R-840Indoor FM antenna .x 1DAB wire antenna (B model) .x 1DOCK cover .x 1for MCR-940/MCR-840/MCR-640 Remote control .x 1Battery (R03, AAA, UM-

31、4) .x 2Audio pin cable (1.0 m) .x 1Video pin cable (1.5 m) .x 1System control cable (0.6 m) .x 1USB cap .x 1* Specifications are subject to change without notice due to product improvements.R-84014R-840/NS-BP300R-840/NS-BP300NS-BP300 Speaker SectionType .2-way bass reflex speaker systemDriver Woofer

32、 .13 cm (5-1/8) cone typeTweeter .2.5 cm (1) soft dome typeFrequency Response .55 Hz to 28 kHz (-10dB)55 Hz to 80 kHz (-30dB)Impedance .6 ohmsNominal Input .60 WMaximum Input .110 WSensitivity . 85 dB/2.83 V/mCrossover Frequency .3 kHzInput Terminal . Screw/Banana typeDimensions (W x H x D) . 176 x

33、318 x 305 mm (6-7/8 x 12-1/2 x 12)Weight .4.3 kg (9.5 lbs.)Finish Black piano color (PN) .C, T, K, A, B, G, L, V modelsWhite piano color (WH) .C, T, K, A, B, G, L, V modelsAccessoriesSpeaker cable (2.0 m) .x 2* Specifications are subject to change without notice due to product improvements.C .Canadi

34、an modelT .Chinese modelK .Korean modelA .Australian modelB .British modelG .European modelL .Singapore modelV . Taiwan model“iPod” is a trademark of Apple Inc., registered in the U.S. and other countries.“Made for iPod” means that an electronic accessory has been designed to connect specifically to

35、 iPod and has been certified by the developer to meet Apple performance standards.Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards.Audio-visual material may consist of copyrighted works which must not be recorded without the authority o

36、f the owner of the copyright. Refer to relevant laws in your country.This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights.Use of this copyright protection technology must be authorized by Macrovision, and is intended for h

37、ome and other limited viewing uses only unless otherwise authorized by Macrovision.Reverse engineering or disassembly is prohibited.“BD-LIVE” logo is a trademark of Blu-ray Disc Association.“BONUSVIEW” is a trademark of Blu-ray Disc Association. is a trademark of DVD Format/Logo Licensing Corporatio

38、n.Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories. is a trademark.DTS is a registered trademark and the DTS logos, Symbol, DTS-HD and DTS-HD Master Audio | Essential are trademarks of DTS, Inc. 1996-2008 DTS, Inc. All Rights Re

39、served.This product is licensed under the AVC patent portfolio license and VC-1 patent portfolio license for the personal and noncommercial use of a consumer to (i) encode video in compliance with the AVC Standard and VC-1 Standard (“AVC/VC-1 Video”) and/or (ii) decode AVC/VC-1 Video that was encode

40、d by a consumer engaged in a personal and non-commercial activity and/or was obtained from a video provider licensed to provide AVC/VC-1 Video. No license is granted or shall be implied for any other use. Additional information may be obtained from MPEG LA, LLC.“AVCHD” and the “AVCHD” logo are trade

41、marks of Panasonic Corporation and Sony Corporation.“x.v.Color” and “x.v.Color” logo are trademarks.Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and/or other countries.MPEG Layer-3 audio decoding technology licens

42、ed from Fraunhofer IIS and Thomson Multimedia.DivX, DivX Ultra Certified, and associated logos are trademarks of DivX, Inc. and are used under license.DTS and DTS 2.0 + Digital Out are registered trademarks and the DTS logos and Symbol are trademarks of DTS, Inc. 1996-2007 DTS, Inc. All Rights Reser

43、ved.“HDMI”, the “HDMI” logo, and “High-Definition Multimedia Interface” are trademarks or registered trademarks of HDMI Licensing LLC.MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson multimedia.Windows Media is either a registered trademark or trademark of Microsoft Co

44、rporation in the United States and/or other countries.15R-840/NS-BP300R-840/NS-BP300Top viewFront view215 (8-1/2)177 (7)110 (4-3/8)102 (4)348 (13-3/4)309 (12-3/16)277 (10-7/8)16(5/8)8(3/8)23(15/16)Side viewFront view8(5/16)20(3/4)20(3/4)25(1)25(1)4(1/8)21(7/8)318 (12-1/2)310 (12-3/16)176(6-7/8)280 (

45、11)305 (12)Unit: mm (inch)NS-BP300Unit: mm (inch) DIMENSIONSR-84016R-840/NS-BP300R-840/NS-BP300Top viewTop viewFront viewMAIN (8) P.C.B.MAIN (2) P.C.B.DAB P.C.B. (A, B models)DAB MODULE (A, B models)FM TUNERFUNCTION (1) P.C.B.MAIN (5) P.C.B.MAIN (1) P.C.B.POWER TRANSFORMERMAIN (7) P.C.B.MAIN (4) P.C

46、.B.FUNCTION (2) P.C.B.MAIN (3) P.C.B.MAIN (6) P.C.B.12345678910111213143451213981011121467 INTERNAL VIEWR-84017R-840/NS-BP300R-840/NS-BP300 DISASSEMBLY PROCEDURES(Remove parts in disassembly order as numbered.)Disconnect the power cable from the AC outlet.1. Removal of Top Cover Unita. Remove 4 scre

47、ws () and 4 screws (). (Fig. 1)b. Lift the top cover unit. (Fig. 1)c. Remove CB108 and CB301. (Fig. 1)d. Remove the top cover unit. (Fig. 1)2. Removal of Front Panel Unita. Remove 2 screws () and 2 screws (). (Fig. 1)b. Remove 2 screws () and remove W804-805. (Fig. 1)c. Remove CB53, CB101 and CB109.

48、 (Fig. 1)d. Release 2 hooks and remove the front panel unit.(Fig. 1)Fig. 1CB109CB101CB108CB301CB53FUNCTION (1) P.C.B.MAIN (5) P.C.B.Top cover unitFront panel unitW804W805HookHook122213355418R-840/NS-BP300R-840/NS-BP300Fig. 23. Removal of Amp Unita. Remove 2 screws (), 2 screws (), 3 screws (), 3 scr

49、ews () and screw (). (Fig. 2)b. Remove CB103, CB403 and CB505. (Fig. 2)c. Remove the amp unit together with the MAIN (1) P.C.B., the FUNCTION (1) P.C.B. and the rear panel. (Fig. 2)MAIN (1) P.C.B.FUNCTION (1) P.C.B.MAIN (2) P.C.B.Rear panelAmp unitCB505CB4036988710CB10319R-840/NS-BP300R-840/NS-BP300

50、Front panel unitChassisRubber sheet and the clothRubber sheet and the clothGround leadRear panelAmp unitTop cover unitWhen checking the P.C.B.s: Spread the rubber sheet and the cloth. Then place the amp unit on the cloth and check it. (Fig. 3) Connect the ground point of the rear panel to the chassi