Denon-PMA500AE-int-sm维修电路原理图.pdf
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1、SERVICE MANUAL MODELPMA-500AE INTEGRATED STEREO AMPLIFIER For Europe & Taiwan R.O.C. model X0304 V.01 DE/CDM 0608 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
2、purposes of improvement, 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 Rad
3、ioFans.CN 收音机爱 好者资料库 2 PMA-500AE 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
4、cau- tions indicated 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 transforme
5、r and gloves when 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
6、 sheet metal, there 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 replacem
7、ent parts, be sure 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 pa
8、rts use tape, tubes 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
9、it was originally. 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 ch
10、eck on the external 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 t
11、ester, check that 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 import
12、ant safety parts 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 saf
13、ety performance will 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 . Indi
14、cated by the ! mark. 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
15、 the unit to the 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
16、、点検時注意願。 注意事項守! 特注意必要個所 、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
17、上、絶縁材料使用、 基板浮取付部品。 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 !
18、 表示。 (2) 部品表 ! 表示。 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 PMA-500AE BLOCK AND LEVEL DIAGRAM 4 PMA-500AE ADJUSTMENT Idling Current Required measurement equipment: DC Voltmeter 1. Setup (1) Place the unit at an ordinary position avoiding direct air flow from an air-conditioner or fan.
19、Do the adjustment at a temperature between 15 C (59 F) and 30 C (86 F). (2) Set control as follows. POWER switch OFF ( ). VOLUME control fully counterclockwise ( min.) SPEAKER terminals open: do not connect the speakers, dummy load etc. 2. Adjustment (1) Remove top cover. And then connect DC Voltmet
20、er to the test points CN31 and CN32 of CUP11904 Main P.W.B. (2) Connect power cord to AC wall outlet, and turn POWER switch ON ( ). (3) Right after power on, adjust VR31 and VR32 so that the DC voltmeter reads 10 1mV. (4) Then after 2 minutes warm up adjust VR31 and VR32 so that the DC voltmeter rea
21、ds 10 1mV. (5) And after 10 minutes warm up adjust VR31 and VR32 so that the DC voltmeter reads 10 0.5mV. VR31 CN31 CN32 VR32 Volume DC Voltmeter Power Trans 調整 電流 調整必要測定器 :DC Voltmeter 1. 準備 (1) 、扇風機風通良場所 避、通常使用状態置。周囲温 度、15 30 調整。 (2) 類、次。 OFF ( )。 調整 最小反時計方向 ( ) 。 端子 無負荷 ( 接続 。) 2. 調整 (1) 上、CUP119
22、04 基板 (CN31, CN32) DC Voltmeter 接続。 (2) 電源 AC100V(95 105V 範囲可)接 続、電源 ON ( ) 。 (3) 通電後電圧(10 1mV ) 、VR31VR32 調整。 (4) 2 分後電圧(10 1mV ) 、VR31VR32 調整。 (5) 10 分後電圧(10 0.5mV ) 、VR31VR32 調整。 5 PMA-500AE SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. 主半導体記
23、載。汎用半導体記載省略。 1. ICs TMP86FH47AUG (IC51) TMP86FH47AUG Terminal Function Pin No.Port NameI/OFunction 1VSSVSS 2XINX IN 3XOUTX OUT 4TESTTEST 5VDDVDD 6P21XTINOMUTE/STANDBY LED 7P22XTOUTO 8RESETIRESET 9P20INT5STOPISTOP ACT. 10P00INT0IPROTECTOR 11P01PDO4/PWM4/PPG4TC4OP. DIRECT RELAY 12P02RXDIRXD 13P03TXDOT
24、XD 14P04SOODATA 15P05SIOSTROBE 16P06SCKOCLK 17P07INT4OS. DIRECT RELAY 18P17IP. DIRECT SW 19P16IS. DIRECT SW 20P15INT3AC RELAY 1 21P14PPGOVOLUME UP 22P13DVOOVOLUME DOWN 23P12INT2TC1IREMOTE IN 6 PMA-500AE LB1930 (IC52) 24P11INT1IPOWER OFF 25P10PDO3/PWM3TC3AC RELAY 2 26P30AIN0AIMODEL 27P31AIN1AISP A/B
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