Yamaha-IPA-8200-Service-Manual电路原理图.pdf

《Yamaha-IPA-8200-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Yamaha-IPA-8200-Service-Manual电路原理图.pdf（96页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL POWER AMPLIFIER PA 011943 CONTENTS （目次） SPECIFICATIONS .3 仕様 .4 DIMENSIONS （寸法図） .5 PANEL LAYOUT （） .6 CIRCUIT BOARD LAYOUT （） .7 SERVICE PRECAUTIONS （時注意） .8 DISASSEMBLY PROCEDURES （分解手順） .11 IC BLOCK DIAGRAM （IC 図） .22 CIRCUIT BOARDS （基板図） .23 INSPECTIONS .43 検査 .45 ADJUSTMENT OF AM

2、P circuit board （AMP 調整） .46 PARTS LIST IC & DIODE FIGURES WIRING DIAGRAM BLOCK DIAGRAM CIRCUIT DIAGRAM 200910-265650 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. YMW 09.11 RadioFans.CN 收音机爱 好者资料库 WARNING （注意） Components having special characteristics are marked and must b

3、e replaced with parts having specification equal to those originally installed. 印商品、安全維持重要部品。交換場合、安全必指定部品使用。 IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance with the follow

4、ing code: GREEN-AND-YELLOW: EARTH BLUE: NEUTRAL BROWN: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured GREEN and YELLOW must be connected to the t

5、erminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or colored GREEN and YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to

6、 the terminal which is marked with the letter L or coloured RED. WARNING: This product 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 WHAT

7、SO EVER! 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 solder or components located inside the enclosure of this product, wash your hands before handling food. IMPORTANT N

8、OTICE 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 users, and have there- fore not been

9、restated. WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruc- tion of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service

10、required should be performed by an authorized Yamaha Retailer or the appointed service repre- sentative. IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of any applicable technical capabilities, or establish

11、a principal-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 depart- ments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable a

12、nd changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor s Service Divi- sion. WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have ac

13、cumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus). IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. IPA8200 2 RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS IPA8200 3 仕様 IPA82

14、00 4 DIMENSIONS （寸法図） 480 (18-7/8) 377.7 (14-7/8) 406.5 (16) Unit: mm (inch) 単位: mm 88 (3-7/16) IPA8200 5 Security cover （） Front Panel （） Rear Panel （） PANEL LAYOUT （） POWER switch and indicator PROTECT indicator CLIP indicator SIGNAL indicator Attenuator MUTE indicator INPUT connectors SPEAKERS co

15、nnectors MODE switches (STEREO mode, BRIDGE mode, PARALLEL mode) GAIN switch (+4 dBu, 26 dB, 32 dB) HPF switch Ground screw AC inlet POWER、 PROTECT CLIP SIGNAL MUTE INPUT 端子 SPEAKERS 端子 MODE （STEREO 、BRIDGE 、PARALLEL ） GAIN （+4 dBu、26 dB、32 dB） HPF 用 AC MUTE switch PARALLEL indicator BRIDGE indicato

16、r 10 Screw holes for security cover 11 Air intakes MUTE PARALLEL BRIDGE 10用穴 11 吸気口 IPA8200 6 CIRCUIT BOARD LAYOUT （） Rear Panel （） (CH D) Top （上側） Front Rear Bottom （下側） Front Panel （） MOTHER ADMOTHER EH INPUT POWER REAR REAR CONNECTOR CONNECTOR FRONTLED FRONTLED AMP (CH C) AMP (CH B) AMP (CH A) AM

17、P (CH H) AMP (CH G) AMP (CH F) AMP (CH E) AMP (CH GH) POWER (CH CD) POWER (CH AB) POWER (CH EF) POWER Top （上側） Bottom （下側） IPA8200 7 D972 C980 1 220 ohms/10W REAR FRONT SERVICE PRECAUTIONS （時注意） Safety measures Some component parts on the INPUT POWER circuit board and POWER circuit boards maintain a

18、 high voltage even when the power is switched off. For this reason to avoid an electrical shock, do not touch the upper metallic part of the following capacitors until the remaining voltage has discharged. Discharging Method Before starting the service work, connect discharging resistors (220 ohms 1

19、0W) to the terminals indicated in the figure below to discharge electricity. (13 points) The required discharging time is about 10 seconds per each. Check that the DC voltage between the terminals measures close to 0 (zero) volts using a multi-meter to make sure that the discharge is completed. 安全対策

20、 INPUT POWER 、POWER 部品一部 電源 OFF 状態高電圧残。 感電防止、残電圧放電下記 上部金属部分触。 放電方法 修理作業始前、放電抵抗（220 、10 W） 下図示放電用端子間接続。 （13 箇所） 放電必要時間各約 10 秒。放電完了確認 、端子間電圧（） 。 INPUT POWER cricuit board INPUT POWER circuit board Capacitors / Discharging point / 放電箇所 C980D972: + pin D972: - pin POWER circuit board x 4 Capacitors / Di

21、scharging point / 放電箇所 C912, C913D904: cathode D901: - pin C914Between both terminals of R922 C915Between both terminals of R923 IPA8200 8 D972 C980 1 220 ohms/10W POWER circuit board x 4 INPUT POWER circuit diagram D901 R922 D904 C912 C913 C914 220 ohms/10W 3 R923 4 2 220 ohms/10W 220 ohms/10W C915

22、 IPA8200 9 POWER circuit diagram x 4 C912, C913 220 ohms/10W C915 C914 220 ohms/10W 220 ohms/10W R922 D901 D904 3 R923 4 2 IPA8200 10 DISASSEMBLY PROCEDURES （分解手順） 92: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 94: BIND HEAD TAPPING SCREW-B 4x8 NI-BL (WP183100) B BIND Fig. 1 （図 1） 1. To

23、p Cover and L Angles (Time required: about 3 minutes) 1-1. Remove the thirteen (13) screws marked 92. The top cover can then be removed. (Fig. 1) 1-2. Remove the six (6) screws marked 94. The two (2) L angles can then be removed. (Fig. 1) 1. 、L （所要時間：約 3 分） 1-1. 92 13 本外、外。 （図 1） 1-2. 94 6 本外、 L 2 個

24、外。 （図 1） Top cover L angle L L angle L 92 92 92 92 94 94 94 94 IPA8200 11 2. AMP Circuit Boards (Time required: about 7 minutes) 2-1. Remove the top cover. (See procedure 1.) 2-2. Remove the two (2) screws marked 62I, the bracket clip and the shield cover. (Fig. 2) 2-3. Remove the screw marked 62A.

25、The AMP circuit board (channel A) can then be removed. (Fig. 2) 2-4. In the same manner, the AMP circuit boards (channel B, C, D, E, F, G, H) can then be removed. (Fig. 2) 2. AMP （所要時間：約 7 分） 2-1. 外。 （1 項参照） 2-2. 62I 2 本、 外。 （図 2） 2-3. 62A外、AMP （ A） 外。 （図 2） 2-4. 同様方法、 AMP （ B、 C、 D、 E、 F、G、H）外。 （図

26、2） 62A: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62B: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62C: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62D: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62E: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000)

27、 B BIND 62F: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62G: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62H: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 62I: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND Fig. 2 （図 2） Shield cover Bracket clip 62I 62A (

28、CH A) 62C 62B 62D 62F 62E 62G 62H 62I AMP (CH C)AMP (CH D)AMP (CH B)AMP (CH F)AMP (CH E)AMP (CH H)AMP (CH G)AMP IPA8200 12 Bracket clip 76A 76B 76B 76A 76C 76C 76D 76D (CH AB)POWER (CH CD)POWER (CH GH)POWER (CH EF)POWER Spacers Spacers 3. POWER （所要時間：約 6 分） 3-1. 外。 （1 項参照） 3-2. 76A 4 本、外。 解除、POWER （

29、 A-B）外。 （図 3） 3-3. 76B 4 本外。解除、 POWER （ C-D） 外。 （図 3） 3-4. 同様方法、POWER （ E-F、 G-H）外。 （図 3） 3. POWER Circuit Boards (Time required: about 6 minutes) 3-1. Remove the top cover. (See procedure 1.) 3-2. Remove the four (4) screws marked 76A and the bracket clip. Release the spacer. The POWER circuit boar

30、d (channel A-B) can then be removed. (Fig. 3) 3-3. Remove the four (4) screws marked 76B. Release the spacer. The POWER circuit board (channel C-D) can then be removed. (Fig. 3) 3-4. In the same manner, the POWER circuit boards (channel E-F, G-H) can then be removed. (Fig. 3) 76A: BIND HEAD TAPPING

31、SCREW-B 3.0 x16 NI-BL (WT892700) B BIND 76B: BIND HEAD TAPPING SCREW-B 3.0 x16 NI-BL (WT892700) B BIND 76C: BIND HEAD TAPPING SCREW-B 3.0 x16 NI-BL (WT892700) B BIND 76D: BIND HEAD TAPPING SCREW-B 3.0 x16 NI-BL (WT892700) B BIND Fig. 3 （図 3） IPA8200 13 Bracket clip PWB spacers 基板 Insulation sheet F

32、絶縁 F 72A 62B MOTHER AD Connector assembly 束線 Connector assembly 束線 Connector assembly 束線 4. MOTHER A-D （所要時間：約 8 分） 4-1. 外。 （1 項参照） 4-2. AMP （ A、B、C、D）外。 （2 項参照） 4-3. POWER （ A-B、 C-D）外。 （3 項参照） 4-4. 72A、絶縁 F 外。 （図 4） 4-5. 62B 、 外 、 MOTHER A-D 外。 （図 4） 注意： 基板 4 個、MOTHER A-D 構成 部品。MOTHER A-D 交換 際、基板

33、4 個古外 。新取付。 4. MOTHER A-D circuit board (Time required: about 8 minutes) 4-1. Remove the top cover. (See procedure 1.) 4-2. Remove the AMP circuit boards (channel A, B, C, D). (See procedure 2.) 4-3. Remove the POWER circuit boards (channel A-B, C-D). (See procedure 3.) 4-4. Remove the screw marked

34、72A and the insulation sheet F. (Fig. 4) 4-5. Remove the screw marked 62B and the bracket clip. The MOTHER A-D circuit board can then be removed. (Fig. 4) Note: The four (4) PWB spacers are not component parts of the MOTHER A-D circuit board. When replacing the MOTHER A-D circuit board, remove them

35、from old circuit board and install them to new circuit board. 62B: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 72A: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND Fig. 4 （図 4） IPA8200 14 Bracket clip PWB spacers 基板 Insulation sheet E 絶縁 E 62C 72B MOTHER EH Connector assembly 束線

36、Connector assembly 束線 5. MOTHER E-H （所要時間：約 8 分） 5-1. 外。 （1 項参照） 5-2. AMP （ E、F、G、H）外。 （2 項参照） 5-3. POWER （ E-F、 G-H）外。 （3 項参照） 5-4. 72B、絶縁 E 外。 （図 5） 5-5. 62C 2 本、 2 個外、 MOTHER E-H 外。 （図 5） 注意： 基板 4 個、MOTHER E-H 構成 部品。MOTHER E-H 交換 際、基板 4 個古外 。新取付。 5. MOTHER E-H circuit board (Time required: about

37、8 minutes) 5-1. Remove the top cover. (See procedure 1.) 5-2. Remove the AMP circuit boards (channel E, F, G, H). (See procedure 2.) 5-3. Remove the POWER circuit boards (channel E-F, G-H). (See procedure 3.) 5-4. Remove the screw marked 72B and the insulation sheet E. (Fig. 5) 5-5. Remove the two (

38、2) screws marked 62C and the two (2) bracket clips. The MOTHER E-H circuit board can then be removed. (Fig. 5) Note: The four (4) PWB spacers are not component parts of the MOTHER E-H circuit board. When replacing the MOTHER E-H circuit board, remove them from old circuit board and install them to n

39、ew circuit board. Fig. 5 （図 5） 62C: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 72B: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND IPA8200 15 PWB spacers 基板 Insulation sheet F 絶縁F Insulation sheet E 絶縁 E 72B 43 72A INPUT POWER Connector assembly 束線 Connector assembly 束線 Connect

40、or assembly 束線 6. INPUT POWER Circuit Board (Time required: about 9 minutes) 6-1. Remove the top cover. (See procedure 1.) 6-2. Remove all the POWER circuit boards. (See procedure 3.) 6-3. Remove the screw marked 72A and the insulation sheet F. (Fig. 6) 6-4. Remove the screw marked 72B and the insul

41、ation sheet E. (Fig. 6) 6-5. Remove the two (2) screws marked 43. (Fig. 6) 6-6. Disconnect all the connector assemblies from the INPUT POWER circuit board. The INPUT POWER circuit board can then be removed. (Fig. 6) Note: The eight (8) PWB spacers are not component parts of the INPUT POWER circuit b

42、oard. When replacing the INPUT POWER circuit board, remove them from old circuit board and install them to new circuit board. 6. INPUT POWER （所要時間：約 9 分） 6-1. 外。 （1 項参照） 6-2. POWER 外。 （3 項参照） 6-3. 72A、絶縁 F 外。 （図 6） 6-4. 72B、絶縁 E 外。 （図 6） 6-5. 43 2 本外。 （図 6） 6-6. INPUT POWER 束線外、 INPUT POWER 外。 （図 6）

43、 注意： 8 個基板、INPUT POWER 構成部品。INPUT POWER 交換際、古基板 取外新取付。 43: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 72A: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND 72B: BIND HEAD TAPPING SCREW-B 3x8 MFZN2BL (WS522000) B BIND Fig. 6 （図 6） IPA8200 16 7. REAR （所要時間：約 5 分） 7-1. 外。 （1 項参照） 7-

44、2. 25 8 本、24 4 本外。 （図 7） 7-3. REAR 束線外、REAR 六角 4 本、 4 本共外。 （図 7） 注意： 六角 4 本、 4 本、REAR 構成部品。REAR 交換 際、古六角 4 本、 4 本外、新取付。 7. REAR Circuit Board (Time required: about 5 minutes) 7-1. Remove the top cover. (See procedure 1.) 7-2. Remove the eight (8) screws marked 25 and the four (4) screws marked 24. (

45、Fig. 7) 7-3. Disconnect all the connector assemblies from the REAR circuit board. The REAR circuit board can then be removed together with the four (4) hexagonal spacers and four (4) screws. (Fig. 7) Note: The four (4) hexagonal spacers and four (4) screws are not component parts of the REAR circuit

46、 board. When replacing the REAR circuit board, remove them from old circuit board and install them to new circuit board. 24: BIND HEAD SCREW 3x6 MFZN2B3 (WS522500) 小 BIND 25: PAN HEAD SCREW M2.6x6 NI-BL (WS522400) 小 PAN Fig. 7 （図 7） Hexagonal spacers 六角 Screws Screws 25 25 24 24 REAR Connector assemblies 束線 IPA8200 17 AC inlet assembly AC Assy Lug terminal 端子 Bracket terminal Screws 13 15 Toothed lock washer 歯付 CONNECTOR Hook Connector assembly 束線 8. CONNECTOR Circuit Board (Time required: about 13 minutes) 8-1. Remove the top cove