Denon-DRA697CI-rec-sm维修电路原理图.pdf
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1、SERVICE MANUALAM-FM STEREO RECEIVERMODELDRA-697CITOKYO, JAPANDenon Brand Company, D&M Holdings Inc.X0315V.01 DE/CDM 0609Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual with referring to theoperating instructions without fail.Fo
2、r purposes of improvement, specifications anddesign 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For U.S.A. & Canada modelVer. 1RadioFans.CN 收音机爱 好者资料库2DRA-697CIPlease heed th
3、e points listed below during servicing and inspection.Heed the cautions!Spots requiring particular attention when servicing, such asthe cabinet, parts, chassis, etc., have cautions indicated onlabels or seals. Be sure to heed these cautions and the cau-tions indicated in the handling instructions.Ca
4、ution concerning electric shock!(1) An AC voltage is impressed on this set, so touching inter-nal metal parts when the set is energized could causeelectric shock. Take care to avoid electric shock, by for ex-ample using an isolating transformer and gloves whenservicing while the set is energized, un
5、plugging the powercord when replacing parts, etc.(2)There are high voltage parts inside. Handle with extra carewhen the set is energized.Caution concerning disassembly and assembly!Though great care is taken when manufacturing parts fromsheet metal, there may in some rare cases be burrs on theedges
6、of parts which could cause injury if fingers are movedacross 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, besure to use parts which have the same properties. In par
7、ticu-lar, for the important safety parts that are marked ! on wiringdiagrams and parts lists, be sure to use the designated parts.Be sure to mount parts and arrange thewires as they were originally!For safety reasons, some parts use tape, tubes or other insu-lating materials, and some parts are moun
8、ted away from thesurface of printed circuit boards. Care is also taken with thepositions of the wires inside and clamps are used to keepwires away from heating and high voltage parts, so be sure toset everything back as it was originally.Inspect for safety after servicing!Check that all screws, part
9、s 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 beenserviced have been negatively affected, conduct an insulationcheck on the external metal connectors and between theblades of the power plug, and othe
10、rwise check that safety isensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnect theantenna, plugs, etc., and turn the power switch on. Using a500V insulation resistance tester, check that the insulation re-sistance between the terminals of the power plug and the
11、 ex-ternally exposed metal parts (antenna terminal, headphonesterminal, microphone terminal, input terminal, etc.) is 1M orgreater. If it is less, the set must be inspected and repaired.Concerning important safety partsMany of the electric and structural parts used in the set havespecial safety prop
12、erties. In most cases these properties aredifficult to distinguish by sight, and using replacement partswith higher ratings (rated power and withstand voltage) doesnot necessarily guarantee that safety performance will be pre-served. Parts with safety properties are indicated as shownbelow on the wi
13、ring diagrams and parts lists is this servicemanual. 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 ! mark.Using parts other than the designated partscould result in electric shock, fires or othe
14、rdangerous situations.SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassisresistance
15、 check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the powercord is less than 460 kohms, the unit is defective.CAUTIONCAUTION、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
16、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。 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
17、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。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3DRA-697CIADJUSTMENTIdling CurrentRequired measurement equipment: DC Voltmeter1. Preparation(1) Avoid direct
18、blow from an air conditioner or an electric fan, and adjust the unit at normal room temperature 15 C 30 C (59 F 86 F).(2) Presetting POWER (Power source switch)OFF SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)2. Adjustment(1) Remove top cover and set VR501FL, VR501F
19、R on MAIN Unit at fully counterclockwise ( ) position.(2) Connect DC Voltmeter to test points (FRONT-Lch: TP501, FRONT-Rch: TP502).(3) Connect power cord to AC Line, and turn power switch ON.(4) Presetting.MASTER VOLUME: - counterclockwise ( min.)MODE: TONE DEFEATFUNCTION: CD(5) Within 2 minutes aft
20、er the power on, turn VR501FL clock-wise ( ) to adjust the TEST POINT voltage to 1.5 mV 0.5 mV DC.(6) After 10 minutes from the preset above, turn VR501FL to set the voltage to 2.0 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other channels in the same way.VR501FLTP501TP502VR501FRF LchF RchDC V
21、oltmeter調整電流調整調整必要測定器 :DC Voltmeter1. 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 、湿度常湿。(2) 電源OFF端子無負荷( 抵抗器接続。)2. 調整(1) 上、基板 VR501FL, VR501FR 反時計方向 ( ) 回切状態。(2) (FRONT-Lch: TP501, FRONT- Rch: TP502) DC Voltmeter 接続。(3) 電源 AC100V(95 105V 範囲可)接続、電源 ON 。(4) ON 後、次。MASTER VOLUME(音量調節)反時計方向( ) 回、最小状態。SPEAKER(端子)
22、無負荷(、抵抗器接続。 )MODE: TONE DEFEATFUNCTION: CD(5) 2 分以内 VR501FL 時計方向 ( ) 回電圧次調整。1.5mV 0.5mV DC(6) 予備調整 10 分後 VR501FL 回、次電圧設定。2.0mV 0.5mV DC(7) 同方法各可変抵抗調整。4DRA-697CIBLOCK DIAGRAM5DRA-697CILEVEL DIAGRAM6DRA-697CISEMICONDUCTORSOnly major semiconductors are shown, general semiconductors etc. are omitted to
23、list.主半導体記載。汎用半導体記載省略。 1. ICsM30843FHFP (IC401) FRONT P.W.B.7DRA-697CIM30843FHFP Terminal FunctionPIN No.Port FunctionPort NameI/OFunction1P96, TXD4/SDA4/SRXD4SIRIUS_TXOO/LSIRIUS data transmission 2P95, CLK4SIRIUS MUTEOO/LSIRIUS MUTE control3P94(HD CE)OO/LHD Radio enable output4P93MULT3 SW OO/LZONE3
24、 output, HPFcontrol5P92, TXD3/SDA3/SRXD3HD Radio TX/(SDA)OO/LHD Radio data transmission6P91, TXD3/SDA3/SRXD3HD Radio RX/(SCL)IIHD Radio Data reception7P90, CLK3(HD CLK)OO/LHD Radio clock output8BYTEI-Ext. data bus bit width switching9CNVSSI-Processor mode switching 10P87, XCIN(HD RESET)OO/LHD Radio
25、reset output 11P86, XCOUTFLT_RESETOO/LFLT reset output 12/RESETI-Hard reset13XOUTO-Oscillator connection 14VSSI-GND15XINI-Oscillator connection 16VCC1I-5V17P85NMII-NMI interruption input 18P84, /INT2RS232C_TXIIRS232C signal detection 19P83, /INT1REMOCONIIRemote control input 20P82, /INT0PROTECTIONII
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