Yamaha-RXA730-avr-sm(1) 维修电路原理图.pdf
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1、Copyright (c) Yamaha Corporation All rights reserved.This manual is copyrighted by Yamaha and may not be copied orredistributed either in print or electronically without permission.P.O.Box 1, Hamamatsu, Japan101 2 6 7SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authoriz
2、ed 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 have therefore not been restated.WARNING: Failure to follow appropriate service and s
3、afety 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 owners that any service required should be performed by an authorized Yamaha Retailer
4、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 capabilities, or establish a principle-agent relationship of any form.The data provided i
5、s 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. Modifi cations are, therefore, inevitable and specifi cations are subject to change without notice or obli
6、gation 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 may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge
7、 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 .2FRONT PANELS .34REAR PANELS .58REMOTE CONTROL PANEL .9SPECIFICATIONS .1014INTERNAL VIEW .1516SERVICE PRECAUTION
8、S .16DISASSEMBLY PROCEDURES .1724UPDATING FIRMWARE .2527SELF-DIAGNOSTIC FUNCTION .2870POWER AMPLIFIER ADJUSTMENT .71DISPLAY DATA .7273IC DATA .7494PIN CONNECTION DIAGRAMS .9597BLOCK DIAGRAMS . 98101WIRING DIAGRAMS . 102103PRINTED CIRCUIT BOARDS .104125SCHEMATIC DIAGRAMS .127142REPLACEMENT PARTS LIST
9、 .143163REMOTE CONTROL .164166ADVANCED SETUP .167168FIRMWARE UPDATING PROCEDURE .169180AV RECEIVERRX-V675/HTR-6066/RX-A730/TSR-675013.05Note:When the DIGITAL P.C.B. or IC82 on DIGITAL (1) P.C.B. is replaced, this unit will display “Internal Error” and will not operate properly. The model name MUST b
10、e written to the backup IC (EEPROM: IC82 on DIGITAL (1) P.C.B.) to have proper operation. (For detailed procedure, refer to related Service News or Service Bulletin. Or contact your local Yamaha representative.)RX-V675/HTR-6066/RX-A730/TSR-6750RadioFans.CN 收音机爱 好者资料库This product contains chemicals k
11、nown 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 inhale solde
12、r 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 marked and must be replaced with parts havin
13、g 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 should be equivalent to 1500 ohms sh
14、unted by 0.15 F. TO SERVICE PERSONNEL Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.WARNING: CHEMICAL CONTENT NOTICE!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 f
15、ree 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 lead free solder is about 30C to 40C (50F to 70F) hi
16、gher than that of the lead solder, be sure to use a soldering iron suitable to each solder.About lead free solderWALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEFor U model“CAUTION”“F3701: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A, 250V FU
17、SE.”“F3702: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE.”For C modelCAUTIONF3701: REPLACE WITH SAME TYPE 2A, 250V FUSE.F3702: REPLACE WITH SAME TYPE 8A, 125V FUSE.ATTENTIONF3701: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 2A, 250V.F3702: UTILISER UN F
18、USIBLE DE RECHANGE DE MME TYPE DE 8A, 125V.2RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750RadioFans.CN 收音机爱 好者资料库 FRONT PANELSRX-V675 (U, C, R, T, A, B, G, F, L, S, H models)HTR-6066 (G, F models)3RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750RX-A730 (U, C, A,
19、 B, G, L models)TSR-6750 (U model)4RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750 REAR PANELSRX-V675 (U, C models)RX-V675 (R, S models)RX-V675 (T model)5RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750H modelRX-V675 (A model)RX-V675 (B, G, F models)RX-V675 (L, H
20、 models)6RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750RX-A730 (U, C models)HTR-6066 (G, F models)RX-A730 (A model)7RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750RX-A730 (L model)RX-A730 (B, G models)TSR-6750 (U model)8RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/
21、HTR-6066/RX-A730/TSR-6750Remote control sheet(T model) REMOTE CONTROL PANELRAV5019RX-V675/HTR-6066/RX-A730/TSR-6750RX-V675/HTR-6066/RX-A730/TSR-6750 Audio SectionRated Output Power (Power Amp. Section)(1 kHz, 0.9 % THD) 1 channel driven U, C, R, T, A, B, G, F, L, S, H models (8 ohms)FRONT L/R .125 W
22、/chCENTER .125 WSURROUND L/R .125 W/chSURROUND BACK L/R .125 W/chB, G, F models (4 ohms)FRONT L/R .150 W/ch 2 channels driven simultaneously U, C, R, T, A, B, G, F, L, S, H models (8 ohms)FRONT L/R .105 W + 105 WCENTER .105 WSURROUND L/R .105 W + 105 WSURROUND BACK L/R .105 W + 105 W(20 Hz to 20 kHz
23、, 0.09 % THD) 2 channels driven simultaneously U, C, R, T, A, B, G, F, L, S, H models (8 ohms)FRONT L/R .90 W + 90 WMaximum Effective Output Power (JEITA) R, T, L, H models(1 channel driven, 1 kHz, 10 % THD, 8 ohms)FRONT L/R .150 W/chCENTER .150 WSURROUND L/R .150 W/chSURROUND BACK L/R .150 W/chDyna
24、mic Power Per Channel (IHF) FRONT L/R (1 channel driven)(8 / 6 / 4 / 2 ohms) .130 / 170 / 200 / 240 WDamping Factor (20 Hz to 20 kHz, 8 ohms)FRONT L/R to SPEAKER-A .100 or moreInput Sensitivity/Input Impedance (1 kHz, 100 W/8 ohms)AV5 etc. . 200 mV / 47 k-ohmsMaximum Input Signal (1 kHz, 0.5 % THD)A
25、V5 etc. (EFFECT ON) .2.3 VOutput Level/Output ImpedanceAV OUT . 200 mV / 1.2 k-ohmsSUBWOOFER (2 ch stereo and FRONT SP: small) . 1 V / 1.2 k-ohmsZONE2 OUT . 200 mV / 1.2 k-ohmsHeadphone Jack Rated Output/Output Impedance(1 kHz, 50 mV, 8 ohms)AV5 etc. input . 100 mV / 560 ohmsFrequency Response (10 H
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