Denon-SYS57HT-spk-sm 电路图 维修手册.pdf
《Denon-SYS57HT-spk-sm 电路图 维修手册.pdf》由会员分享,可在线阅读,更多相关《Denon-SYS57HT-spk-sm 电路图 维修手册.pdf(20页珍藏版)》请在收音机爱好者资料库上搜索。
1、SERVICE MANUAL MODELSYS-57HT SPEAKER SYSTEM PACK For U.S.A. & Canada model X0284 V.01 DE/CDM 0607 Some illustrations using in this service manual are slightly different from the actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of impr
2、ovement, specifications and design are subject to change without notice. 本文中使用、説明都合上現物 多少異場合。 修理際、必取扱説明書参照上、作業行 。 前、 必読。本機、火災、感電、 対安全性確保、配慮 、法的電気用品安全法 、所定許可得製造。 従際、安全性維 持、記載 注意事項必守。 本機仕様性能改良、予告変更 。 補修用性能部品保有期間、製造打切後8年。 注意 TOKYO, JAPAN Denon Brand Company, D&M Holdings Inc. Ver. 1 RadioFans.CN 收音机爱 好
3、者资料库 2 SYS-57HT Please heed the points listed below during servicing and inspection. Heed the cautions! Spots requiring particular attention when servicing, such as the cabinet, parts, chassis, etc., have cautions indicated on labels or seals. Be sure to heed these cautions and the cau- tions indica
4、ted in the handling instructions. Caution concerning electric shock! (1) An AC voltage is impressed on this set, so touching inter- nal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for ex- ample using an isolating transformer and gloves when
5、 servicing while the set is energized, unplugging the power cord when replacing parts, etc. (2)There are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly! Though great care is taken when manufacturing parts from sheet metal, the
6、re may in some rare cases be burrs on the edges of parts which could cause injury if fingers are moved across them. Use gloves to protect your hands. Only use designated parts! The sets parts have specific safety properties (fire resis- tance, voltage resistance, etc.). For replacement parts, be sur
7、e to use parts which have the same properties. In particu- lar, for the important safety parts that are marked ! on wiring diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally! For safety reasons, some parts use tape, tub
8、es or other insu- lating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wires inside and clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally
9、. Inspect for safety after servicing! Check that all screws, parts and wires removed or discon- nected for servicing have been put back in their original posi- tions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an insulation check on the extern
10、al metal connectors and between the blades of the power plug, and otherwise check that safety is ensured. (Insulation check procedure) Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and turn the power switch on. Using a 500V insulation resistance tester, check that
11、 the insulation re- sistance between the terminals of the power plug and the ex- ternally exposed metal parts (antenna terminal, headphones terminal, microphone terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired. Concerning important safety parts
12、Many of the electric and structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and using replacement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance w
13、ill be pre- served. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be sure to replace them with parts with the designat- ed part number. (1) Schematic diagrams . Indicated by the ! mark. (2) Parts lists . Indicated by the ! ma
14、rk. Using parts other than the designated parts could result in electric shock, fires or other dangerous situations. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the
15、customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. CAUTION CAUTION 、点検時注意願。 注意事項守! 特
16、注意必要個所 、部品、捺印注意事項 表示。 注意書取扱説明書 注意事項必守。 感電注意! (1) 、交流電圧印加通電時 内部金属部触感電。従 通電時、絶縁使用手袋着 用、部品交換、電源抜感電 注意。 (2) 内部高電圧部分、通電時取扱 十分注意。 分解、組立作業時注意! 板金部品端面、部品製造時充分管理 、 板金端面鋭利箇所有 、 部品端面触指動怪我場 合十分注意作業下。 手保護 手袋着用。 指定部品使用! 部品難燃性耐電圧安全上特性持 。従交換部品、使用 同特性部品使用。特配線図、部品 表 ! 印指定安全上重要部品必指定 使用。 部品取付配線引、 元! 安全上、絶縁材料使用、 基板浮取付部品
17、。 内部 配線引発熱部品高圧部 品接近配慮、 必 元。 後安全点検! 取外、部品、配線元 、 個所周辺劣化 点検、外部金属端子部 、電源刃間絶縁、安 全性確保確認。 (絶縁方法) 電源電源抜、 外、電源入。500V 絶縁抵抗計用 、電源端子外部露出金属部 端子、端子端子、入力端子 間、絶縁抵抗値 M 以上、値以下 点検修理必要。 安全上重要部品 本機使用多電気部品、 機構部品安全 上、 特別特性持。 特性場合、 外観判別、部品高定格(定 格電力、耐圧)持使用安全性維持 、限。安全上特性持部品、 配線図、 部品表表示 必指定部品番号使用願 。 (1) 配線図 ! 表示。 (2) 部品表 ! 表示
18、。 指定部品異使用場合 、感電、火災危険生恐 。 注意 注意 RadioFans.CN 收音机爱 好者资料库 3 SYS-57HTDSW-76(Black) Section DSW-76(Black) BLOCK/LEVEL DIAGRAM VOL DIRECT MODE ATT CROSSOVER CONTROL HPF DIRECT MODE SW SW202 LINE INPUT ALC POWER AMPREVERSEPHASE NORMAL SPEAKER U201 U203 U203 20 0 40 -10 (dB) 20 0 40 -10 (dB) +20dB +1.84dB +
19、4.34dB +4.34dB +27.2dB +50.5dB 20V/4ohrm THD 0.7% (ALCON) 20V/4ohrm THD 0.7% (ALCON) at 55Hz at 55Hz -1dB -1dB 830mV 75mV RadioFans.CN 收音机爱 好者资料库 4 SYS-57HTDSW-76(Black) Section DSW-76(Black) SEMICONDUCTORS Only major ICs are shown,generai ICs etc. are omitted to list. 主半導体記載。汎用半導体記載省略。 ICs TL074CN
20、(U201-203) PRE-AMP P.W.B. UNIT NJM4558D (U101) AMP P.W.B. UNIT Inverting Input 2 Non-inverting Input 2 Non-inverting Input 1 CCV - CCV 1 2 3 4 8 5 6 7 9 10 11 12 13 14 + Output 3 Output 4 Non-inverting Input 4 Inverting Input 4 Non-inverting Input 3 Inverting Input 3 - + - + - + - + Output 1 Inverti
21、ng Input 1 Output 2 5 SYS-57HTDSW-76(Black) Section DSW-76(Black) PRINTED WIRING BOARDS (1/2) AMP P.W.B. UNIT 6 SYS-57HTDSW-76(Black) Section DSW-76(Black) PRINTED WIRING BOARDS (2/2) PRE-AMP P.W.B. UNIT POWER P.W.B. UNIT 7 SYS-57HTDSW-76(Black) Section NOTE FOR PARTS LIST Part indicated with the ma
22、rk nsp are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused. When ordering of part, clearly indicate 1 and I (i) to avoid mis- supplying. Ordering part without stating its part number can not be supplied. Part indicated wi
23、th the mark is not illustrated in the exploded view. Not including General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Not including General-purpose Carbon Chip Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for t
24、hose parts.) WARNING: Parts marked with this symbol ! have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. ss ss ss ss ss ss RD :2B : 1/8 WF :1%P: RC :2E : 1/4 WG :2%NL : RS:2H : 1/2 WJ :5%NB : RW :3A : 1WK :10%FR : RN :3D : 2WM :20%F: RK :3F: 3W 3H : 5W RN14K2E
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Denon-SYS57HT-spk-sm 电路图 维修手册 Denon SYS57HT spk sm 维修 手册
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。



Marshall-9100-62-02-Schematic电路原理图.pdf


