Yamaha-HTR-6270-Service-Manual电路原理图.pdf

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1、AV RECEIVER/AV AMPLIFIER 1 0 11 4 1 animate 09.05 P.O.Box 1, Hamamatsu, Japan Copyright 2009 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. SERVICE MANUAL RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-627

2、0/ AX-V765 IMPORTANT NOTICE This 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 the users, and hav

3、e 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 YAMAHA product own

4、ers 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 technical capab

5、ilities, 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. Modifications are, th

6、erefore, 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 electricity your body m

7、ay 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. CONTENTS TO SERVICE PERSONNEL .2 FRONT PANELS .34 REAR P

8、ANELS .58 REMOTE CONTROL PANEL .9 SPECIFICATIONS / 参考仕様 .1016 INTERNAL VIEW .17 SERVICE PRECAUTIONS / 時注意事項 .17 DISASSEMBLY PROCEDURES / 分解手順 .1820 UPDATING FIRMWARE / 書込 .2131 SELF-DIAGNOSTIC FUNCTION / （自己診断機能） .3264 CONFIRMATION OF IDLING CURRENT OF AMP UNIT / 電流確認 .65 DISPLAY DATA .6667 IC DATA

9、.6886 PIN CONNECTION DIAGRAMS .8789 BLOCK DIAGRAMS .9093 PRINTED CIRCUIT BOARDS .94111 SCHEMATIC DIAGRAMS . 113124 REPLACEMENT PARTS LIST .125147 REMOTE CONTROL .148150 ADVANCED SETUP .151152 本機基本設定 / 初期化行 .153154 RadioFans.CN 收音机爱 好者资料库 2 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 This prod

10、uct 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 your skin! When sold

11、ering, 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 Information Components having special characteristics are marked and must

12、 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 impedance shoul

13、d be equivalent to 1500 ohms shunted by 0.15 F. For U model “CAUTION” “F3701: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A, 125V FUSE.” For C model CAUTION F3701: REPLACE WITH SAME TYPE 10A, 125V FUSE. ATTENTION F3701: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE

14、10A, 125V. 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 using the lead free solder. Among some types of lead free solder currently available, it is reco

15、mmended 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 lead free solder is about 30C to 40C (50F to 70F) higher than that of the lead solder, be su

16、re 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. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! About l

17、ead free solder / 無鉛 RadioFans.CN 收音机爱 好者资料库 3 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 U model C, R, T, K, A, B, G, E, F, L models J model Top view Front view FRONT PANELS RX-V765 (U model) RX-V765 (C, R, K, A, B, G, E, F, L models) 4 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 AX-

18、V765 (J model) HTR-6270 (C, F models) RX-V765 (T model) 5 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 RX-V765 (U model) RX-V765 (C model) RX-V765 (R model) REAR PANELS 6 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 RX-V765 (T model) RX-V765 (K model) RX-V765 (A model) 7 RX-V765/HTR-6270

19、/ AX-V765 RX-V765/HTR-6270/AX-V765 RX-V765 (B, G, E, F models) RX-V765 (L model) HTR-6270 (C model) 8 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 HTR-6270 (F model) AX-V765 (J model) 9 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 REMOTE CONTROL PANELS RAV290 (U model) RAV291 (C model) R

20、AV292 (R, A, L models) RAV295 (T, K, B, G, E, F models) RAV289 (J model) 10 RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 Audio Section / 部 Minimum RMS Output Power (Power Amp. Section) / 定格出力（部） RX-V765 (20 Hz to 20 kHz, 0.08 % THD, 8 ohms) FRONT L/R .95 W + 95 W CENTER .95 W SURROUND L/R .95

21、W + 95 W SURROUND BACK L/R .95 W + 95 W HTR-6270 (1 kHz, 0.7 % THD, 8 ohms) FRONT L/R .110 W + 110 W CENTER .110 W SURROUND L/R .110 W + 110 W SURROUND BACK L/R .110 W + 110 W AX-V765 (20 Hz to 20 kHz, 0.09 % THD, 6 ohms) FRONT L/R .95 W + 95 W CENTER .95 W SURROUND L/R .95 W + 95 W SURROUND BACK L/

22、R .95 W + 95 W Maximum Power / 実用最大出力 (JEITA) (1 kHz, 10 % THD) R, T, K, L, J models FRONT L/R R, T, K, L models (8 ohms) .135 W + 135 W J model (6 ohms) .135 W + 135 W CENTER R, T, K, L models (8 ohms) .135 W J model (6 ohms) .135 W SURROUND L/R R, T, K, L models (8 ohms) .135 W + 135 W J model (6

23、ohms) .135 W + 135 W SURROUND BACK L/R R, T, K, L models (8 ohms) .135 W + 135 W J model (6 ohms) .135 W + 135 W MAX. Power Per Channel (1 kHz, 0.7 % THD, 4 ohms) B, G, E, F, L models FRONT L/R .145 W + 145 W CENTER .145 W SURROUND L/R .145 W + 145 W SURROUND BACK L/R .145 W + 145 W IEC Power (1 kHz

24、, 0.08 % THD, 8 ohms) B, G, E, F, L models FRONT L/R .105 W + 105 W Dynamic Power Per Channel / (IHF) FRONT L/R drive U, C, R, T, K, A, B, G, E, F, L models (8 / 6 / 4 / 2 ohms) .130 / 165 / 195 / 240 W J model (6 / 4 / 2 ohms) .135 / 165 / 210 W Dynamic Headroom U, C models 8 ohms .1.4 dB Damping F

25、actor / (20 Hz to 20 kHz, 8 ohms, SPEAKER-A) FRONT L/R .100 or more Input Sensitivity/Input Impedance / 入力感度入力 (1 kHz, 100 W/8 ohms) PHONO (MM) . 3.5 mV / 47 k-ohms AV5 etc. . 200 mV / 47 k-ohms MULTI CH INPUT FRONT L/R, CENTER, SURROUND L/R, SURROUND BACK L/R, SUBWOOFER . 200 mV / 47 k-ohms Maximum

26、 Input Signal / 最大許容入力 (1 kHz) PHONO (MM) (0.1 % THD) .60 mV or more AV5 etc. (Effect ON) (0.5 % THD) .2.3 V or more SPECIFICATIONS / 参考仕様 Output Level/Output Impedance / 出力電圧出力 REC OUT . 200 mV/1.2 k-ohms PRE OUT . 1 V/1.2 k-ohms SUBWOOFER (2 ch stereo and FRONT SP: small) . 1 V/1.2 k-ohms ZONE2 OU

27、T U, C, R, T, K, A, B, G, E, F, L models . 200 mV/1.2 k-ohms Headphone Jack Rated Output/Output Impedance / 出力出力 AV5 etc. input (1 kHz, 50 mV, 8 ohms) . 100 mV/470 ohms Frequency Response / 再生周波数帯域 AV5 etc., FRONT (10 Hz to 100 kHz) .+0/-3 dB RIAA Equalization Deviation / RIAA 偏差 PHONO (MM) . 0 0.5

28、dB Total Harmonic Distortion / 全高調波歪率 PHONO (MM) to REC OUT (20 Hz to 20 kHz, 1 V) .0.02 % or less AV5 etc. (PURE DIRECT) to FRONT SP OUT (20 Hz to 20 kHz, 50 W) U, C models (8 ohms) .0.08 % or less R, A, B, G, E, F, L models (6 ohms) .0.08 % or less Signal to Noise Ratio / 信号対雑音比 (IHF-A network) PH

29、ONO (MM) to REC OUT (Input shorted 5 mV) U, C, R, T models . 86 dB or more K, A, B, G, E, F, L models . 81 dB or more PHONO (MM) to REC OUT (Input shorted 2.5 mV) J model . 80 dB or more AV5, etc. (PURE DIRECT) to SP OUT (Input shorted 250 mV) . 100 dB or more Residual Noise / 残留 (IHF-A Network) FRO

30、NT L/R to SP OUT .150 V or less Channel Separation / (1 kHz / 10 kHz) PHONO (Input shorted) . 60 dB or more / 55 dB or more AV5, etc. (Input 5.1 k-ohms shorted) . 60 dB or more / 45 dB or more Volume Control / 可変範囲 .MUTE / -80 dB to +16.5 dB / 0.5 dB step Tone Control Characteristics / 特性 FRONT L/R

31、Bass Boost/Cut . 10 dB/2 dB, step 50 Hz Turnover frequency .350 Hz Treble Boost/Cut .10 dB/2 dB, step 20 kHz Turnover frequency .3.5 kHz Filter Characteristics / 特性 FRONT, CENTER, SURROUND, SURROUND BACK small (H.P.F.) .fc=40/60/80/90/100/110/120/160/200 Hz, 12 dB/oct. SUBWOOFER small (L.P.F.) .fc=4

32、0/60/80/90/100/110/120/160/200 Hz, 24 dB/oct. Video Section / 部 Video Signal Type (Gray back) / 信号方式（） U, C, R, K, J models .NTSC T, A, B, G, E, F, L models .PAL Composite Video Signal Level / 信号 .1 Vp-p / 75 ohms S-Video Signal Level B, G, E, F models Y .1 Vp-p / 75 ohms C .0.286 Vp-p / 75 ohms 11

33、RX-V765/HTR-6270/ AX-V765 RX-V765/HTR-6270/AX-V765 Neural Surround name and related logos are trademarks owned by Neural Audio Corporation. U .U.S.A. model C .Canadian model R .General model T .Chinese model K .Korean model A .Australian model B .British model G .European model E .South European mod

34、el F . Russian model L .Singapore model J .Japanese model Component Video Signal Level / 信号 Y .1 Vp-p / 75 ohms Cb/Cr .0.7 Vp-p / 75 ohms D4 Video Signal / D4 信号 J model Y .1 Vp-p / 75 ohms Cb/Cr .0.7 Vp-p / 75 ohms Video Maximum Input Level / 最大許容入力 VIDEO CONVERSION OFF .1.5 Vp-p or more Video Signal to Noise Ratio / 信号対雑音比 .