Yamaha-AS1000-int-sm 电路图 维修手册.pdf

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1、 CONTENTS TO SERVICE PERSONNEL . 2 FRONT PANEL . 3 REAR PANELS . 36 REMOTE CONTROL PANELS. 6 SPECIFICATIONS / 参考仕様. 7 INTERNAL VIEW . 8 SERVICE PRECAUTIONS / 時注意事項 . 9 DISASSEMBLY PROCEDURES / 分解手順. 918 AMP ADJUSTMENT / 部調整. 19 UPDATING FIRMWARE / 書込. 2025 SELF-DIAGNOSTIC FUNCTION / （自己診断機能）. 2628 I

2、C DATA . 2932 PIN CONNECTION DIAGRAMS. 3334 BLOCK DIAGRAM. 35 PRINTED CIRCUIT BOARDS. 3654 SCHEMATIC DIAGRAMS. 5561 REPLACEMENT PARTS LIST . 6383 REMOTE CONTROL. 8485 101091 SERVICE MANUAL STEREO AMPLIFIER Copyright 2008 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied

3、 or redistributed either in print or electronically without permission. P.O.Box 1, Hamamatsu, Japan 08.05 A-S1000 A-S1000 RadioFans.CN 收音机爱 好者资料库 2 A-S1000 A-S1000 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! This product contain

4、s 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 WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do

5、 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 s and must be rep

6、laced 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 should be eq

7、uivalent to 1500 ohms shunted by 0.15F. Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities. 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3040 程度高、合 使用。 All of the P.C.B.s installed in this unit and

8、 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 + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth) Caution: As the m

9、elting 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 solder / 無鉛 TO SERVICE PERSONNEL For U model “CAUTION” “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, R

10、EPLACE ONLY WITH SAME TYPE 10A, 125V FUSE.” For C model CAUTION F1:REPLACE WITH SAME TYPE 10A, 125V FUSE. ATTENTION F1:UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 10A, 125V. RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 7 A-S1000 A-S1000 435 (17-1/8) 137 (5-3/8) 465 (18-5/16) 418 (16-7/16) 25 (

11、1) 22 (7/8) 16 (5/8) 121 (4-3/4) 371 (14-5/8) 362 (14-1/4) SPECIFICATIONS / 参考仕様 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 L . Singapore model J. Japanese model DIMENSIONS / 寸法図 Audio Section / 部

12、 Minimum RMS Output Power (Power Amp. Section) / 定格出力 （部） (20 Hz to 20 kHz, 0.02 % THD) 8 ohms .90 W + 90 W 6 ohms . 105 W + 105 W 4 ohms . 140 W + 140 W Dynamic Power / (IHF) 8/6/4/2 ohms . 105/135/190/220 W Maximum Output Power B, G models (1 kHz, 0.7 % THD, 4 ohms) . 160 W Maximum Useful Output P

13、ower / 実用最大出力 (JEITA) R, T, K, L, J models (1 kHz, 10 % THD) 8 ohms . 115 W 4 ohms . 190 W Power Band Width / 8 ohms (MAIN L/R drive) .10 Hz to 50 kHz Dynamic Headroom / 8 ohms . 0.67 dB IEC Output Power B, G models (1 kHz, 0.02 % THD) 8 ohms . 90 W 4 ohms . 145 W Damping Factor / (1 kHz, 8 ohms) .

14、160 or more Maximum Input Signal / 最大許容入力 (1 kHz) CD, etc. (0.5 % THD). 2.8 V or less PHONO (0.003 % THD) MM . 120 mV or less MC . 7 mV or less Frequency Response / 周波数特性 CD, etc. Flat position, 5 Hz to 100 kHz . +0 / -3.0 dB Flat position, 20 Hz to 20 kHz . +0 / -0.3 dB RIAA Equalization Deviation

15、/ RIAA偏差 (20 Hz to 20 kHz) PHONO MM . 0.5 dB MC. 0.5 dB Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz) CD, etc. to SP OUT (90 W, 8 ohms) .0.015 % or less PHONO MM (2 V, to REC) .0.005 % or less MC (2 V, to REC) .0.05 % or less Intermodulation Distortion / 混変調歪率 (Rated output, 8 ohms) CD, etc.

16、to SP OUT . 0.02 % Signal to Noise Ratio / 信号対雑音比 (IHF-A Network) (Input shorted) CD, etc. (150 mV) .98 dB or more PHONO MM (5 mV) .93 dB or more MC (500 V).85 dB or more Residual Noise / 残留 (IHF-A Network) FRONT L/R SP OUT . 73 V or less Control Section / 部 Input Sensitivity/Input Impedance / 入力感度入

17、力 CD, etc. . 150 mV/47 k-ohms PHONO MM . 2.5 mV/47 k-ohms MC. 100 V/50 ohms MAIN IN . 1 V/47 k-ohms Output Level/ Output Impedance / 入力電圧 REC OUT . 150 mV/1.5 k-ohms PRE OUT . 1 V/1.5 k-ohms Rated Output Voltage / 出力電圧 PRE OUT . 150 mV/1.5 k-ohms REC OUT . 1 V/1.5 k-ohms Headphone Rated Output / 出力

18、1 kHz, 150 mV, 0.2 % THD, 32 ohms . 23 mW / 100 ohms Channel Separation / (1 kHz/10 kHz) CD, etc. (5.1 k-ohms terminated) .74/54 dB or more PHONO (Input shorted, Vol: -30 dB) MM . 90/77 dB or more MC . 66/65 dB or more Tone Control Characteristics / 特性 BASS Boost/Cut (50 Hz) . 9 dB Turnover frequenc

19、y. 350 Hz TREBLE Boost/Cut (20 Hz) . 9 dB Turnover frequency. 3.5 kHz Audio Muting / . -20 dB (approx.) General / 総合 Power Supply / 電源電圧 U, C models .AC 120 V, 60 Hz R, L models.AC 110/120/220/230-240 V, 50/60 Hz T model .AC 220 V, 50 Hz K model .AC 220 V, 60 Hz A model .AC 240 V, 50 Hz B, G models

20、.AC 230 V, 50 Hz J model . AC 100 V, 50/60 Hz Power Consumption / 消費電力 U, C, R, T, K, A, B, G, L models . 350 W J model . 220 W Maximum Power Consumption / 最大消費電力 1 kHz, 10 % THD, 8 ohms . 700 W Idling Power Consumption / 時消費電力 . 80 W Off-state Power Consumption / OFF時消費電力 . 0 W Dimensions (W x H x

21、D) / 寸法 （幅高奥行） . 435 x 137 x 465 mm (17-1/8” x 5-3/8” x 18-5/16”) Weight / 質量 . 22.0 kg (48 lbs. 8 oz) Finish / 仕上 Black color . U, C, R, T, K, A, B, G, L, J models Silver color . U, C, R, T, K, A, B, G, L, J models Accessories / 付属品 Remote control x 1, Battery (R6, AA, UM-3) x 2, Power cable (2 m)

22、x 1 *Specifications are subject to change without notice due to product improvements. 参考仕様外観予告変更。 Unit: mm (inch) 単位：mm （） 8 A-S1000 A-S1000 INTERNAL VIEW 1 FRONT (14) P.C.B. (R, L models) 2 FUNCTION (3) P.C.B. 3 FRONT (13) P.C.B. 4 MAIN (2) P.C.B. 5 FUNCTION (2) P.C.B. 6 POWER TRANSFORMER 7 MAIN (3

23、) P.C.B. 8 MAIN (1) P.C.B. 9 FRONT (12) P.C.B. 0 FRONT (11) P.C.B. A FRONT (9) P.C.B. B FRONT (2) P.C.B. C FRONT (1) P.C.B. D FRONT (3) P.C.B. E FRONT (6) P.C.B. F FRONT (5) P.C.B. G FRONT (4) P.C.B. H FRONT (7) P.C.B. I FUNCTION (1) P.C.B. J FRONT (10) P.C.B. 2357960148 Top view Front view Rear vie

24、w J GFEA I H BCD A-S1000 9 DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet. 1. Removal of Panel Side L/R a. Remove 2 screws (1), 2 coned disc spring L and 2 washers side. (Fig. 1) b. Lift the panel side L upward and release 3 hooks

25、. Then remove the panel side L. (Fig. 1) c. Remove 2 screws (2), 2 coned disc spring L and 2 washers side. (Fig. 1) d. Lift the panel side R upward and release 3 hooks. Then remove the panel side R. (Fig. 1) 2. Removal of Top Cover a. Remove 7 screws (3), 2 screws (4) and 2 screws (5). (Fig. 1) b. R

26、emove the top cover. (Fig. 1) 3. Removal of Front Panel *Prepare an Allen wrench (2 mm) for removal of knob unit. a. Loosen lock set screw to remove the knob VOL unit. (Fig. 1) b. Loosen lock set screw to remove the knob SEL unit. (Fig. 1) c. Loosen each lock set screw to remove 3 knob TC unit. (Fig

27、. 1) d. Remove 8 screws (6). (Fig. 1) e. Set the “POWER ON/OFF” switch to the ON position. f.Remove the front panel forward gradually using care not to cause damage the switches. (Fig. 1) ? ? 1. L/R外方 ? 1? ? ? ? ? ? ? ? 2? ? ? ? ? ? ? 2. 外方 ? 3?4?5? ? ? ? ? 3. 外方 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 6? ?

28、 ? ? ? ? ? ? Fig. 1 SERVICE PRECAUTIONS / 時注意事項 安全対策 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Safety measures Some internal parts in this product contain high volt- ages and are dangerous. Be sure to take safety mea- sures during servicing, such as wearing insulating gloves.

29、 Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there. Before starting any repair work, perform discharge by connecting a discharge resistor (5k-ohms/10W) be- tween terminals at following p

30、ositions. The time re- quired for discharging is about 30 seconds. 1. C308 on MAIN (3) P.C.B. 2. C309 on MAIN (3) P.C.B. 3. C335 on MAIN (3) P.C.B. 4. C336 on MAIN (3) P.C.B. Refer to “PRINTED CIRCUIT BOARDS: MAIN (3) P.C.B.”. *When installing the knob unit, it is necessary to position them as speci

31、fied. (Refer to “When installing the knob unit”.) ? ? ? ? ? ? ? Panel side L ? Panel side R ? Washer side ? Washer side ? Coned disc spring L ? Coned disc spring L ? Front panel ? Top cover ? 6 6 3 1 3 4 5 2 Hook ? Hook ? POWER ON / OFF switch ? Hook ? Knob VOL unit ? An Allen wrench ? Knob SEL unit

32、 ? Knob TC unit ? 2mm Lock set screw ? A-S1000 10 Knob VOL unit ? Slit ? Cut ? Lock set screw ? Lock set screw ? Lock set screw ? Center position of BALANCE ? VR501 SW501 VR504 VOLUME MIN VOLUME MAX Knob SEL unit ? Knob TC unit ? Front panel ? 0.50.75mm VOL取付場合： ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?