Yamaha-RXV673-avr-sm 维修电路原理图.pdf
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1、P.O.Box 1, Hamamatsu, Japan101 2 3 7SERVICE 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
2、 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 these reaso
3、ns, 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 recognitio
4、n 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 improve YAMA
5、HA 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. Discharge a
6、ny 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 SERVICE PERSO
7、NNEL .2FRONT PANELS .34REAR PANELS .58REMOTE CONTROL PANEL .9SPECIFICATIONS .1015INTERNAL VIEW .1617SERVICE PRECAUTIONS .17DISASSEMBLY PROCEDURES .1823UPDATING FIRMWARE .2425SELF-DIAGNOSTIC FUNCTION .2664POWER AMPLIFIER ADJUSTMENT .65DISPLAY DATA .6669IC DATA .7089PIN CONNECTION DIAGRAMS .9091BLOCK
8、DIAGRAMS .9295PRINTED CIRCUIT BOARDS .96128SCHEMATIC DIAGRAMS .129148REPLACEMENT PARTS LIST .149171REMOTE CONTROL . 172174ADVANCED SETUP . 175176FIRMWARE UPDATING PROCEDURE .177188AV RECEIVERRX-V673/HTR-6065/RX-A720Copyright 2012 All rights reserved.This manual is copyrighted by YAMAHA and may not b
9、e copied orredistributed either in print or electronically without permission.12.05RX-V673/HTR-6065/RX-A720Note: When the DIGITAL P.C.B. or IC82 on DIGITAL P.C.B. is replaced, this unit will display “Internal Error” and will not operate at all without additional setting.In such a case, report the se
10、rial number of this unit to the following e-mail address.Yamaha Corporation will reply providing the setting procedure to make this unit operate properly.E-mail: ycav-RadioFans.CN 收音机爱 好者资料库This product contains chemicals known to the State of California to cause cancer, or birth defects or other re
11、productive 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 solder fumes or expose eyes to solder/flux vapor!If you come in contact with solde
12、r 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 having specifications equal to those originally installed.2. Leakage Current Measu
13、rement (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 shunted by 0.15 F. TO SERVICE PERSONNEL Leakage current must not exceed 0.5mA.
14、Be sure to test for leakage with the AC plug in both polarities.WARNING: CHEMICAL CONTENT NOTICE!For U model“CAUTION”“F3702: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE.”For C modelCAUTIONF3702: REPLACE WITH SAME TYPE 8A, 125V FUSE.ATTENTIONF3702: UTILISE
15、R UN FUSIBLE DE RECHANGE DE MME TYPE DE 8A, 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 +
16、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.About lead free solderWALLOUTLETEQ
17、UIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLE2RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720RadioFans.CN 收音机爱 好者资料库 FRONT PANELSRX-V673 (U, C, R, T, K, A, B, G, F, L, S, H models)HTR-6065 (A, F models)3RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720RX-A720 (U, C, A models)4RX-V673
18、/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720 REAR PANELSRX-V673 (U, C models)RX-V673 (R, S models)RX-V673 (T model)5RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720RX-V673 (K model)RX-V673 (A model)RX-V673 (B, G, F models)6RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720HTR-6065 (A model)RX-V673 (L, H
19、models)HTR-6065 (F model)H model7RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720RX-A720 (A model)RX-A720 (U, C models)8RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720 REMOTE CONTROL PANELRAV472Remote control sheet(T model)9RX-V673/HTR-6065/RX-A720RX-V673/HTR-6065/RX-A720 Audio SectionRated Output
20、Power (Power Amp. Section)(1 kHz, 0.9 % THD) 1 channel driven U, C, R, T, K, A, B, G, F, L, S, H models (8 ohms)FRONT L/R .125 W/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, K, A, B, G, F, L, S
21、, 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, 0.09 % THD) 2 channels driven simultaneously U, C, R, T, K, A, B, G, F, L, S, H models (8 ohms)FRONT L/R .90 W + 90 WMaximum Effective Output Power (JEITA) R, T, K, L,
22、 S, 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/chDynamic 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 SPEAKE
23、R-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)AV5 etc. (EFFECT ON) .2.3 VOutput Level/Output ImpedanceAUDIO OUT . 200 mV / 1.2 k-ohmsSUBWOOFER (2 ch stereo and FRONT SP: small) . 1 V / 1.2 k-ohmsZONE2 OUT .
24、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 Hz to 100 kHz)AV5 etc., FRONT .0 / -3 dBTotal Harmonic Distortion (20 Hz to 20 kHz, 50 W/8 ohms)AV5 etc. (PURE DIRECT) to FRONT SP OUT .0.06 % or lessSignal t
25、o Noise Ratio (IHF-A Network) (Input shorted 250 mV)AV5 etc. (PURE DIRECT) to SP OUT . 100 dB or moreResidual Noise (IHF-A Network)FRONT L/R to SP OUT .150 V or lessChannel Separation (1 kHz / 10 kHz)AV5 etc. (Input 5.1 k-ohms shorted) . 60 dB or more / 45 dB or moreVolume Control/Step .MUTE / -80 d
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