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1、SERVICE MANUAL 100941 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 specifically YAMAHA Products, are already known and understood by the user
2、s, 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 specified. For these reasons, we advise all YAMAHA pro
3、duct 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 firm does not constitute authorization, certification or recognition of any applicable technical
4、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 YAMAHA products. Modifications ar
5、e, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. 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
6、 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. I CONTENTS TO SERVICE PERSONNEL . 2 FRONT PANELS. 36 RE
7、AR PANELS . 615 SPECIFICATIONS / 参考仕様 . 1618 INTERNAL VIEW . 1819 REMOTE CONTROL PANELS. 19 DISASSEMBLY PROCEDURES / 分解手順 . 2023 SELF DIAGNOSIS FUNCTION (DIAG) / 自己診断機能（）. 2444 AMP ADJUSTMENT / 部調整 . 45 IC DATA . 4651 BLOCK DIAGRAM. 5255 DISPLAY DATA . 56 PRINTED CIRCUIT BOARD . 5779 PIN CONNECTION
8、DIAGRAM . 80 SCHEMATIC DIAGRAM . 8193 PARTS LIST. 95129 REMOTE CONTROL. 130131 AV RECEIVER/AV AMPLIFIER RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 P.O.Box 1, Hamamatsu, Japan 05.02 Copyright 2005 YAMAHA CORPORATION This manual is copyr
9、ighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 2 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABL
10、E WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entiti
11、es) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA- SON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eye
12、s 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. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with part
13、s 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. GMeter impedance should be equivalent to 15
14、00 ohms shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. “CAUTION” “F1, 2: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE.” CAUTION F1, 2: REPLACE WITH SAME TYPE 8A, 125V FUSE. ATTENT
15、ION F1, 2: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 8A, 125V. 本機搭載基板付使用 下記通。 The P.C.B.s installed in this unit are soldered using the following solder. About Lead Free Solder / 無鉛 Component Side / 部品面Foil Side / 面 DSP P.C.B.Lead Solder / 鉛入Lead Free Solder / 無鉛 FUNCTION P.C.B.Lead Free Solde
16、r / 無鉛 OPERATION P.C.B.Lead Free Solder / 無鉛 MAIN P.C.B.Lead Free Solder / 無鉛 POWER P.C.B.Lead Free Solder / 無鉛 SUBTRANS P.C.B.Lead Free Solder / 無鉛 CONVERSION P.C.B.Lead Solder / 鉛入Lead Free Solder / 無鉛 VIDEO P.C.B.Lead Free Solder / 無鉛 XM P.C.B.Lead Solder / 鉛入Lead Free Solder / 無鉛 Side A Side B S
17、MT REFLOW Process MI FLOW Process Solder Dip RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 3 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 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3040 程度高、合 使用。 鉛入使得場合、交換 部品端子部周辺部無鉛取除、 無鉛鉛入十分溶状態 付。 Among some ty
18、pes 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: 1. As the melting point temperature of the lead free solder is about 30C to 4
19、0C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder. 2. If lead solder must be used, be sure to remove lead free solder from each terminal section of the parts to be replaced and from the area around it completely before soldering, or make sur
20、e that the lead free solder and lead solder melt together fully. I FRONT PANELS RX-V557 (U, C models) RX-V557 (R, T, K, A, B, G, E, L models) A, B, G, E models RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 4 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 HTR-5850 (T, K, A models) DSP-
21、AX557 (J model) HTR-5850 (U, C models) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 5 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V457 (U, C models) HTR-5840 (U, C models) RX-V457 (R, T, K, A, B, G, E, L models) B, G, E models RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX4
22、57 6 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 HTR-5840 (T, K, A, B, G, E models) DSP-AX457 (J model) RX-V557 (U, C models) I REAR PANELS B, G, E models RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 7 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V557 (R model) RX-V557
23、 (T model) RX-V557 (K model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 8 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V557 (A model) RX-V557 (B model) RX-V557 (G, E models) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 9 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP
24、-AX457 RX-V557 (L model) HTR-5850 (U, C models) HTR-5850 (T model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 10 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 HTR-5850 (K model) HTR-5850 (A model) DSP-AX557 (J model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 11 RX-V557
25、/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V457 (U, C models) RX-V457 (R model) RX-V457 (T model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 12 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V457 (K model) RX-V457 (A model) RX-V457 (B model) RX-V557/HTR-5850/DSP-AX557 RX-
26、V457/HTR-5840/DSP-AX457 13 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 RX-V457 (G, E models) RX-V457 (L model) HTR-5840 (U, C models) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 14 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 HTR-5840 (T model) HTR-5840 (K model) HTR-584
27、0 (A model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 15 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 HTR-5840 (B model) HTR-5840 (G, E models) DSP-AX457 (J model) RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 16 RX-V557/HTR-5850/DSP-AX557 RX-V457/HTR-5840/DSP-AX457 I SP
28、ECIFICATIONS / 参考仕様 I Audio Section / 部 Minimum RMS Output Power (Power Amp. Section) / 定格出力 ( 部) RX-V557 (20 Hz to 20 kHz, 0.09% THD, 8 ohms) FRONT L/R.90 W + 90 W CENTER . 90 W SURROUND L/R .90 W + 90 W SURROUND BACK . 90 W HTR-5850 (1 kHz, 0.7% THD, 8 ohms) FRONT L/R. 105 W + 105 W CENTER . 105 W
29、 SURROUND L/R . 105 W + 105 W SURROUND BACK . 105 W DSP-AX557 (J model) (20 Hz to 20 kHz, 0.09% THD, 6 ohms) FRONT L/R.90 W + 90 W CENTER . 90 W SURROUND L/R .90 W + 90 W SURROUND BACK . 90 W RX-V457 (20 Hz to 20 kHz, 0.09% THD, 8 ohms) FRONT L/R.85 W + 85 W CENTER . 85 W SURROUND L/R .85 W + 85 W S
30、URROUND BACK . 85 W HTR-5840 (1 kHz, 0.7% THD, 8 ohms) FRONT L/R. 100 W + 100 W CENTER . 100 W SURROUND L/R . 100 W + 100 W SURROUND BACK . 100 W DSP-AX457 (J model) (20 Hz to 20 kHz, 0.09% THD, 6 ohms) FRONT L/R.85 W + 85 W CENTER, REAR CENTER. 85 W SURROUND L/R .85 W + 85 W SURROUND BACK . 85 W Ma
31、ximum Power / 実用最大出力 (EIAJ) (1 kHz, 10% THD) RX-V557/HTR-5850 (R, T, K, L models) FRONT L/R (8 ohms) . 130 W + 130 W CENTER, REAR CENTER (8 ohms) . 130 W SURROUND L/R (8 ohms).130 W + 130 W SURROUND BACK (8 ohms) . 130 W DSP-AX557 (J model) FRONT L/R (6 ohms) . 130 W + 130 W CENTER, REAR CENTER (6 o
32、hms) . 130 W SURROUND L/R (6 ohms).130 W + 130 W SURROUND BACK (6 ohms) . 130 W RX-V457/HTR-5840 (R, T, K, L models) FRONT L/R (8 ohms) . 125 W + 125 W CENTER, REAR CENTER (8 ohms) . 125 W SURROUND L/R (8 ohms).125 W + 125 W SURROUND BACK (8 ohms) . 125 W DSP-AX457 (J model) FRONT L/R (6 ohms) . 125
33、 W + 125 W CENTER, REAR CENTER (6 ohms) . 125 W SURROUND L/R (6 ohms).125 W + 125 W SURROUND BACK (6 ohms) . 125 W DIN Standard Output Power Per Channel / DIN (1 kHz, 0.7% THD, 4 ohms) RX-V557/HTR-5850 (B, G, E models) FRONT L/R. 135 W + 135 W CENTER . 135 W SURROUND L/R . 135 W + 135 W SURROUND BAC
34、K . 135 W RX-V457/HTR-5840 (B, G, E models) FRONT L/R. 130 W + 130 W CENTER . 130 W SURROUND L/R . 130 W + 130 W SURROUND BACK . 130 W IEC Power / IEC (1 kHz, 0.06% THD, 8 ohms) RX-V557/HTR-5850 (B, G, E, L models) FRONT L/R. 100 W + 100 W RX-V457/HTR-5840 (B, G, E, L models) FRONT L/R.95 W + 95 W D
35、ynamic Power Per Channel / (IHF) (8/6/4/2 ohms) RX-V557/HTR-5850 FRONT L/R. 120/155/190/235 W DSP-AX557 (J model) FRONT L/R. /130/160/205 W RX-V457/HTR-5840 FRONT L/R. 115/150/185/230 W DSP-AX457 (J model) FRONT L/R. /125/155/200 W Dynamic Headroom / (8 ohms) RX-V557/HTR-5850 (U, C models). 1.25 dB
36、RX-V457/HTR-5840 (U, C models). 1.31 dB Damping Factor / 20 Hz to 20 kHz, SPEAKER-A . 120 or more Input Sensitivity / Input Impedance (入力感度/入力) CD, etc. 200 mV / 47 k-ohms MULTI CH IN FRONT L/R, CENTER, SURROUND L/R, SUB WOOFER . 200 mV / 47 k-ohms Maximum Input Signal Level / 最大許容入力 (1 kHz, 0.5% THD) CD, etc. (Effect On) .2.2 V or more Output Level / Output Impedance (出力電圧/出力) REC OUT. 200 mV / 1.2 k-ohms 20 Hz SUB WOOFER .
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