Yamaha-SR300-sub-sm(1) 维修电路原理图.pdf

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1、SR-300/NS-BR300/NS-P705/NS-B380SR-3001 0 11 6 1SERVICE 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 al

2、ready known 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 personal injury, destruction of expensive components, and failure of the product to perform as specifi ed. For

3、these reasons, we advise all YAMAHA 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

4、 recognition 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 service departments of YAMAHA are continually striving to i

5、mprove YAMAHA products. Modifications 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.

6、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 buss).IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. CONTENTSTO SE

7、RVICE PERSONNEL .2SYSTEM COMPOSITION / 構成 .3FRONT PANELS .45REAR PANELS .68REMOTE CONTROL PANELS .9SPECIFICATIONS / 参考仕様 .1013INTERNAL VIEW .14SERVICE PRECAUTIONS / 時注意事項 .14DISASSEMBLY PROCEDURES / 分解手順 .1519UPDATING FIRMWARE / .2026WRITING SYSTEM MODEL NAME AND DESTINATION / 名仕向先書込 .2730SELF-DIAGN

8、OSTIC FUNCTION / （自己診断機能） .3151DISPLAY DATA .52IC DATA .5365PIN CONNECTION DIAGRAMS .6667BLOCK DIAGRAM .6869PRINTED CIRCUIT BOARDS .7078SCHEMATIC DIAGRAMS .7985REPLACEMENT PARTS LIST .87100REMOTE CONTROL . 10110209.11P.O.Box 1, Hamamatsu, JapanSPEAKERS NS-BR300/NS-P705/NS-B380The YHT-S300 consists o

9、f the SR-300 and NS-B380.The YHT-S350 consists of the SR-300 and NS-P705.The YHT-S400 consists of the SR-300 and NS-BR300.The YHT-S1400 consists of the SR-300, BD-S1065 and NS-B380.This service manual is for the SR-300/NS-BR300/NS-P705/NS-B380.For service manual of the BD-S1065, please refer to the

10、following publication number:BD-S1900/BD-S1065: 101151Copyright 2009 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission.SUBWOOFER INTEGRATED RECEIVERHOME THEATER PACKAGEYHT-S300/YHT-S350/YHT-S400/YHT-S14

11、002SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380This 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!Avoi

12、d prolonged, unprotected contact between solder and your 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 Inf

13、ormationComponents 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 service has been completed, it is imperative to verify that all exposed conductive surfaces

14、 are properly insulated from supply circuits. Meter impedance should be equivalent to 1500 ohms shunted by 0.15 F.本機搭載基板付接合部無鉛付。無鉛種類、修理時下記無鉛使用推奨。 Sn+Ag+Cu（錫 + 銀 + 銅） Sn+Cu（錫 + 銅） Sn+Zn+Bi（錫 + 亜鉛 + ）注意：無鉛融点温度通常鉛入比 30 40程度高、 合使用。All of the P.C.B.s installed in this unit and solder joints are soldered

15、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 + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:As the melting point temperature of the

16、 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 Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.WALLOUTLETEQUIPMENTUNDER TESTAC

17、 LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!About lead free solder / 無鉛For U model“CAUTION”“F701: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A, 125V FUSE.”For C modelCAUTIONF701: REPLACE WITH SAME TYPE 6A, 125V FUSE.ATTENTIONF701: UTILI

18、SER UN FUSIBLE DE RECHANGE DE MME TYPE DE 6A, 125V.3SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 SYSTEM COMPOSITION / 構成The YHT-S300 consists of the SR-300 and NS-B380.The YHT-S350 consists of the SR-300 and NS-P705.The YHT-S400 consists of the SR-300 and NS-BR300.The YHT-S1400 con

19、sists of the SR-300, BD-S1065 and NS-B380.This service manual is for the SR-300/NS-BR300/NS-P705/NS-B380.For service manual of the BD-S1065, please refer to the following publication number:BD-S1900/BD-S1065: 101151YHT-S300YHT-S350YHT-S400YHT-S1400 SR-300 BD-S1065 NS-BR300 SR-300 SR-300 NS-P705 (L)

20、NS-B380 NS-B380 NS-P705 (R) NS-BR300 SR-3004SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380SR-300NS-BR300U, C, T, A, G, F, L modelsU, C, T, A, G, F, L, J modelsJ model FRONT PANELS5SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380NS-P705NS-B380J modelG, F, L modelsLeftRig

21、ht6SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 REAR PANELSSR-300U, C modelsT, A, G, F, L modelsT modelA modelG, F modelsL model7SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380J modelNS-BR300U, C, T, A, G, F, L, J models8SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300

22、/NS-P705/NS-B380NS-P705J modelLeftRightNS-B380G, F, L models9SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 REMOTE CONTROL PANELSFSR30(U, C, T, A, G, F, L models)FSR31(J model)10SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 SPECIFICATIONS / 参考仕様 Audio Section / 部Mini

23、mum RMS Output Power / 定格出力 (1 % THD)FRONT L/R (1 kHz, 6 ohms) .45 W + 45 WFRONT CENTER (1 kHz, 6 ohms) .45 WSUBWOOFER (100 Hz, 3 ohms) .90 WMaximum Power / 実用最大出力 (10 % THD) FRONT L/R (1 kHz, 6 ohms) .50 W + 50 WFRONT CENTER (1 kHz, 6 ohms) .50 WSUBWOOFER (100 Hz, 3 ohms) .100 WInput Sensitivity/In

24、put Impedance / 入力感度入力Analog . 450 mV / 17 k-ohmsMaximum Input Signal Level / 最大許容入力 (1 kHz, DSP=THRU) Analog .2.2 V or lessFrequency Response / 周波数特性 (20 Hz to 20 kHz)FRONT L/R (Analog/Digital input) .-0.5 1.0 dBTotal Harmonic Distortion / 全高調波歪率 (1 kHz, 20 kHz LPF, MAIN SP OUT, 3.8 V/6 ohms)Analog

25、 input .0.06 % or lessDigital input .0.05 % or lessSignal to Noise Ratio / 信号対雑音比 (IHF-A network, MAIN SP OUT, 16.6 V/6 ohms)Analog input . 82 dB or moreDigital input . 98 dB or moreResidual Noise / 残留 (IHF-A network) MAIN SP OUT L/R .138 V or less FM Section / FM 部Tuning Range / 受信周波数範囲 U, C models

26、 .87.5 to 107.9 MHzT, A, G, F, L models .87.50 to 108.00 MHzJ model .76.0 to 90.0 MHzFrequency Step / 周波数 U, C models .200 kHzT, A, G, F, L models .50 kHzJ model .100 kHzAntenna Input / 入力 . 75 ohms unbalanced Speaker Section / 部Type / 型式 . Bass reflex speaker systemNon-magnetic shielding typeDriver

27、 / Woofer .13 cm (5-1/8) cone typeFrequency Response / 再生周波数帯域 .35 Hz to 150 HzImpedance / .3 ohms General / 総合Power Supply / 電源電圧 U, C models .AC 120 V, 60 HzT, A, G, F, L models . AC 220240 V, 50/60 HzJ model .AC 100 V, 50/60 HzPower Consumption / 消費電力 .35 WStandby Power Consumption / 待機時消費電力 HDMI

28、 control: OFFU, C models .Less than 0.4 WT, A, G, F, L models .Less than 0.5 WJ model .Less than 0.3 WHDMI control: ONU, C, J models .Less than 3 WT, A, G, F, L models .Less than 3.5 WDimensions (W x H x D) / 寸法（幅 高 奥行） .435 x 151 x 361 mm (17-1/8 x 5-7/8 x 14-1/4)Weight / 質量 .8.6 kg (19 lbs.)Finish

29、 / 仕上 Black color .U, C, T, A, G, F, L, J modelsAccessories / 付属品Remote control .x 1Batteries (R03, AAA, UM-4) .x 2Indoor FM antenna (1.4 m) .x 1Optical cable (2 m) .x 1HDMI cable (1 m) (for YHT-S1400) .x 1Video pin cable (1.5 m) (for YHT-S1400) .x 1Audio pin cable (1.5 m) (for YHT-S1400) .x 1 NS-BR

30、300 (YHT-S400, YHT-S1400)Type / 型式 .Acoustic suspension speaker systemNon-magnetic shielding typeDriver / Full-range .4 x 10 cm (1-5/8 x 3-7/8) cone type x 3Frequency Response / 再生周波数帯域 .150 Hz to 20 kHzImpedance / .6 ohmsDimensions (W x H x D) / 寸法（幅 高 奥行）This unit / 本体 .800 x 50 x 70 mm (17-1/8 x

31、5-7/8 x 14-1/4)Stand / .45 x 70 x 88 mm (17-1/8 x 5-7/8 x 14-1/4)Weight / 質量 .1.5 kg (3.3 lbs.)Finish / 仕上 Black color .U, C, T, A, G, F, L, J modelsAccessories / 付属品Speaker stand .x 2Nonskid pad (10 x 10 x 1.5) .x 4Screw (for speaker stand) .x 2Speaker cable (3 m) .x 111SR-300/NS-BR300/NS-P705/NS-B

32、380SR-300/NS-BR300/NS-P705/NS-B380U .U.S.A. modelC .Canadian modelT.Chinese modelA .Australian modelG .European modelF .Russian modelL.Singapore modelJ .Japanese model NS-P705 (YHT-S350)Type / 型式 .2-way acoustic suspension speaker systemNon-magnetic shielding typeDriver / Woofer .5.5 cm (2-1/8) cone

33、 type x 2Tweeter .2.5 cm (1) balanced dome type x 1Frequency Response / 再生周波数帯域 .150 Hz to 20 kHzImpedance / .6 ohmsDimensions (W x H x D) / 寸法（幅 高 奥行）This unit / 本体 .95 x 190 x 95 mm (3-3/4 x 7-1/2 x 3-3/4)Stand / . 78 x 51 x 97 mm (3-1/8 x 2 x 3-7/8)Weight / 質量 .0.96 kg (2.12 lbs.)Finish / 仕上 Blac

34、k color .J modelAccessories / 付属品Speaker stand .x 2Screw (for speaker stand) .x 2Speaker cable (3 m) .x 2 NS-B380 (YHT-S300)Type .2-way acoustic suspension speaker systemNon-magnetic shielding typeDriver Woofer .6.5 cm (2-1/2) cone type x 2Tweeter .2.5 cm (1) balanced dome type x 1Frequency Response

35、 .150 Hz to 20 kHzImpedance .6 ohmsDimensions (W x H x D) This unit .90 x 220 x 109 mm (3-1/2 x 8-5/8 x 4-1/4)Stand .87 x 63 x 120 mm (3-3/8 x 2-1/2 x 4-3/4)Weight .0.92 kg (2.03 lbs.)Finish Black color .G, F, L modelsAccessories Speaker stand .x 2Screw (for speaker stand) .x 2Speaker cable (3 m) .x

36、 2* Specifications are subject to change without notice due to product improvements. 参考仕様外観予告変更。This system employs new technologies and algorithms that make it possible to achieve 7-channel surround sound with only two front speakers, and without using wall reflections.本機新技術搭載。壁反射利用、 7ch 効果生出可能。“DT

37、S” and “DTS Digital Surround” are registered trademarks of DTS, Inc.DTS DTS Digital Surround 登録商標。“iPod” is a trademark of Apple Inc., registered in the U.S. and other countries.iPod 、米国他国登録 Apple Inc. 商標登録商標。Bluetooth is a registered trademark of Bluetooth SIG and is used by Yamaha in accordance wi

38、th a license agreement.Bluetooth 、Bluetooth SIG 登録商標基使用。“HDMI,” the “HDMI” logo and “High-Definition Multimedia Interface” are trademarks, or registered trademarks of HDMI Licensing LLC.HDMI、HDMI 、 High-Definition Multimedia Interface 、HDMI Licensing, LLC 商標登録商標。“x.v.Color” is a trademark of Sony Co

39、rporation.x.v.Color、株式会社商標。“UniVolume” is a trademark of Yamaha Corporation.、株式会社商標。AAC 商標。Manufactured under license from Dolby Laboratories.“Dolby” , “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.実施権製造。 、PRO LOGIC D 記号、 商標。12SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300

40、/NS-P705/NS-B38032 (1-1/4)2.6 (1/8)15.5(3/4)Top viewTop viewSide viewStandRear viewStandStandRear viewSide viewTop viewFront viewRear viewNS-B380NS-BR300NS-P705SR-300435 (17-1/8)800 (31-1/2)457 (18)171.5 (6-3/4)395 (15-1/2)15(5/8)11(3/8)151 (5-7/8)220 (8-5/8)190 (7-1/2)124 (4-7/8)152 (6)50(2)70(2-3/

41、4)88(3-1/2)90(3-1/2)95(3-3/4)98(3-7/8)78(3-1/8)97(3-7/8)95(3-3/4)3(1/8)87(3-3/8)120(4-3/4)34.9(1-3/8)11(3/8)109(4-1/4)2(1/8)70(2-3/4)63(2-1/2)51(2)361 (14-1/4)350 (13-3/4)310 (12-1/4)136 (5-3/8)45 (1-3/4)10 (3/8)5 (1/4)5 (1/4)15 (5/8)8 (3/8)164 (6-1/2)56 (2-1/4)50 (2)15.5(5/8)A screw with a diameter

42、 of 5 mm can be used.Hole depth: 12 mm (1/2) 3.5 mm (1/8), Hole depth: 13 mm (1/2) 3.5 mm (1/8), Hole depth: 13 mm (1/2) DIMENSIONS / 寸法図Unit: mm (inch)単位 ： mm（）13SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 SET MENU TABLEMENUPARAMETERVALUE INITIAL VALUEAdjusting the volume balance

43、 during playback1: SW LEVEL2: CENTER LEVEL3: SUR. LEVEL6 to +6, 0Adjusting high/low frequency sound (tone control)4: TONE BASS5: TONE TREBLEAdjusting the audio delay6: AUDIO DELAYAUTO / 0 to 240 ms (step 10 ms)Setting the audio output7: HDMI AUDIOAMP / TVSwitching on/off the HDMI control function8:

44、HDMI CONTROLON / OFFChanging the brightness of the front panel display9: DISPLAY MODEDIMMER 0 / DIMMER -1 / DIMMER -2 / DIMMER -3 / DIMMER -4 / DISPLAY OFFChanging the setting of the speaker type10: SP TYPEBAR / 2CH / 3CHSetting the distance between the speakers11: SP DISTANCEWIDE / NORMAL / NARROW1

45、4SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380 SERVICE PRECAUTIONS / 時注意事項Top viewRear viewFront viewPOWER (1) P.C.B.FM TUNERINPUT P.C.B.HDMI P.C.B.MAIN P.C.B.POWER (3) P.C.B.WOOFER SWPOWER (2) P.C.B.1234567815876234 INTERNAL VIEWPrecaution for handling measuring instrumentAs the sp

46、eaker output of SR-300 is B.T.L. connected, it is necessary to make the ground side of the measuring instrument to be connected to the speaker terminal loose.計測器取扱上注意SR-300 出力 B.T.L 接続端子接続計測器側、必要。15SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380CB309CB307MAIN P.C.B.Bottom coverAmp uni

47、t ConnectorRuber sheet and the cloth布Driver woofer 1122344 DISASSEMBLY PROCEDURES / 分解手順Disconnect the power cable from the AC outlet. Required toolsUsed when removing the front panel unit. Flatblade screwdriver Metalblade or the like (with wider blade end)1. Removal of Drivera. Spread a rubber shee

48、t and cloth and place this unit on cloth with its bottom up. (Fig. 1)b. Remove 4 screws (), and remove the bottom cover. (Fig. 1)c. Remove 4 screws (), and pull out the driver. (Fig. 1)d. Disconnect the connector connected to the terminal of the Driver. (Fig. 1)e. Remove the driver. (Fig. 1)2. Remov

49、al of Amp Unita. Remove 2 screws () and 10 screws (). (Fig. 1)b. Pull out the amp unit. (Fig. 1)c. Remove CB307 and CB309. (Fig. 1)d. Remove the amp unit. (Fig. 1)AC 電源、電源抜。 必要取外時使用。 等（先端幅広）1. 外方a. 布敷、本機底面上置。 （Fig. 1）b. 4 本外、取外。（Fig. 1）c. 4 本外、引出。 （Fig. 1）d. 端子接続外。 （Fig. 1）e. 取外。 （Fig. 1）2. 外方a. 2 本

50、、 10 本外。 （Fig. 1）b. 引出。 （Fig. 1）c. CB307、CB309 外。 （Fig. 1）d. 取外。 （Fig. 1）Fig. 116SR-300/NS-BR300/NS-P705/NS-B380SR-300/NS-BR300/NS-P705/NS-B380555555555567765Flexible flat cable電線CB311LockedUnlockedCB707CB705CB704CB311CB305CB310CB701POWER P.C.B.MAIN P.C.B.Amp unit Shield frameShield frameFig. 23. （上