Denon-AVR2308-avr-sm维修电路原理图.pdf

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1、Denon Brand Company, D&M Holdings lnc.For purposes of improvement, specifications and design are subject to change without notice.Please use this service manual with referring to the operating instructions without fail.Some illustrations using in this service manual are slightly different from the a

2、ctual set.注意前、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。修理際、必取扱説明書参照上、作業行。本文中使用、説明都合上現物多少異場合。X0358 V.04 DE/CDM 0802SERVICE MANUALAV SURROUND RECEIVERAV SURROUND AMPLIFIERMODELJPE3E2EKE2AE1CEUTAVR-2308CI? ?AVR-888? ?AVR-2308?AVC-2308? ?Ver. 422Pleas

3、e refer to theMODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2AVR-2308CI/AVR-888/AVR-2308/AVC-2308Please heed the points listed below during servicing and inspection. Heed the cautions!Spots requiring particular attention when servicing, suchas the cabinet, parts, chassis, etc., have cautions indicatedo

4、n labels or seals. Be sure to heed these cautions and thecautions indicated in the handling instructions. Caution concerning electric shock!(1) An AC voltage is impressed on this set, so touching in-ternal metal parts when the set is energized couldcause electric shock. Take care to avoid electric s

5、hock,by for example using an isolating transformer andgloves when servicing while the set is energized, un-plugging the power cord when replacing parts, etc.(2)There are high voltage parts inside. Handle with extracare when the set is energized. Caution concerning disassembly andassembly!Though grea

6、t care is taken when manufacturing parts fromsheet metal, there may in some rare cases be burrs on theedges of parts which could cause injury if fingers aremoved across them. Use gloves to protect your hands. Only use designated parts!The sets parts have specific safety properties (fire resis-tance,

7、 voltage resistance, etc.). For replacement parts, besure to use parts which have the same properties. In par-ticular, for the important safety parts that are marked z onwiring diagrams and parts lists, be sure to use the desig-nated parts. Be sure to mount parts and arrange thewires as they were or

8、iginally!For safety reasons, some parts use tape, tubes or other in-sulating materials, and some parts are mounted away fromthe surface of printed circuit boards. Care is also taken withthe positions of the wires inside and clamps are used tokeep wires away from heating and high voltage parts, sobe

9、sure to set everything back as 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 po-sitions, inspect that no parts around the area that has beenserviced have been negatively affecte

10、d, conduct an insu-lation check on the external metal connectors and betweenthe blades of the power plug, and otherwise check thatsafety is ensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnectthe antenna, plugs, etc., and turn the power switch on. Us-ing a 500V

11、 insulation resistance tester, check that the in-sulation resistance between the terminals of the powerplug and the externally exposed metal parts (antenna ter-minal, headphones terminal, microphone terminal, inputterminal, etc.) is 1M or greater. If it is less, the set mustbe inspected and repaired

12、.Concerning important safetypartsMany of the electric and structural parts used in the sethave special safety properties. In most cases these prop-erties are difficult to distinguish by sight, and using re-placement parts with higher ratings (rated power andwithstand voltage) does not necessarily gu

13、arantee thatsafety performance will be preserved. Parts with safetyproperties are indicated as shown below on the wiring dia-grams and parts lists is this service manual. Be sure to re-place them with parts with the designated part number.(1) Schematic diagrams . Indicated by the z mark.(2) Parts li

14、sts . Indicated by the z mark.Using parts other than the designatedparts could result in electric shock, fires orother dangerous situations.SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore return

15、ing the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassisresistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of thepower cord is less than 460 kohms, the unit is defective.CAUTIONCAUTIONRa

16、dioFans.CN 收音机爱 好者资料库3AVR-2308CI/AVR-888/AVR-2308/AVC-2308、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、

17、 部品表 z 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、絶縁抵抗値 M 以上確認。 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

18、品表表示必指定部品番号使用願。(1) 配線図 z 表示。(2) 部品表 z 表示。指定部品異使用場合、感電、火災危険生恐。注意注意4AVR-2308CI/AVR-888/AVR-2308/AVC-2308DIMENSION AVR-2308CI / AVR-2308 / AVC-2308 model 26.454.7372.8244.542020.8170.515.51554343445AVR-2308CI/AVR-888/AVR-2308/AVC-2308 AVR-888 model 22.456.2372.8244.542020.8170.515.51554343446AVR-2308CI

19、/AVR-888/AVR-2308/AVC-2308WIRE ARRANGEMENTIf wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly asthey were originally bundled or placed afterward.Otherwise, incorrect arrangement can be a cause of noisegeneration.Wire arrangement viewe

20、d from the top整形図調整部品交換等、類結束移動場合、作業完了時点整形。正整形発生原因。上面整形Back Panel sideFront Panel side7AVR-2308CI/AVR-888/AVR-2308/AVC-2308CAUTION IN SERVICINGInitializing AV SURROUND RECEIVER/AM-PLIFIERAV SURROUND RECEIVER/AMPLIFIER initialization should be performed when the com, peripheral parts of com, and Digit

21、al P.W.B. are replaced.1. Switch off the unit.2. Hold the following SPEAKERS-A button and SPEAKERS-B button, and switch on the unit.3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 but-tons and the microprocessor will be initialized

22、.Note:If step 3 does not work, start over from step 1. All user settings will be lost and this factory setting will be recovered when this initialization mode.So make sure to memorize your setting for restor-ing after the initialization.JIG to use for servicingWhen you repair the printing board, you

23、 can use the following JIG. Please order to Denon Official Service Distributor in your region if necessary.Extention cable kit00D SPK- 561 EXTENSION UNIT KIT : 1 Set00D SPK- 562 TUCP CONN. JOINT KIT : 1 SetExtention cable for Idling CurrentParts Number for Extension Cables and Quantity of Unit. How

24、to use and Adjust Idle Current.1. The thin and hard plate (ex. Ruler) is fixed with the tape behind the cable. 2. The voltmeter is connected with the other side of the ex-tension cable.3. Refer to ADJUSTMENT(Idling Current).Parts NumberParts NameQty / unitRemarks612050082004D6P 250mm NH1L=250mm 6P N

25、H Cable612050083007D8P 250mm NH1L=250mm 8P NH Cable1,22,3時注意事項AV / 初期化周辺部品、Digital 基板等交換場合、AV / 初期化行下。1.on/off OFF 。2.SPEAKERS-A SPEAKERS-B 同時押、on/off 押 ON 。3.表示約 1 秒間隔点滅確認後、2 指離。初期化。注意 :上記 3 状態場合、一度操作 1直。初期化行客様設定内容工場出荷状態戻、設定内容控初期化後再設定。時使用治具基板修理際、使用治具下記。必要応販社注文下。延長00D SPK- 561 EXTENSION UNIT KIT : 1

26、 式00D SPK- 562 TUCP CONN. JOINT KIT : 1 式電流用延長延長品番使用本数使用方法調整方法1.沿定規硬板止。2.反対側電圧計接続。3.調整項目参照電流調整。Parts NumberParts NameQty / unitRemarks612050082004D6P 250mm NH1L=250mm 6P NH Cable612050083007D8P 250mm NH1L=250mm 8P NH Cablef8AVR-2308CI/AVR-888/AVR-2308/AVC-2308DISASSEMBLY Disassemble in order of the

27、arrow of the figure of following flow.下記図矢印順番。 In the case of the re-assembling, assemble it in order of the reverse of the following flow.再組立場合、下記逆順番組立 In the case of the re-assembling, observe attention of assembling it.再組立場合、 組立注意遵守。TOP COVER SUB ASSYFRONT UNIT ASSYBACK PANELTRANSRefer to DISASSE

28、MBLY : 1.FRONT UNIT ASSYRefer to DISASSEMBLY : 2.BACK PANEL ASSYRefer to EXPLODED VIEWand EXPLODED VIEWand EXPLODED VIEW3-1 : FLD UNIT3-2 : FUNC UNIT1.DIGITAL UNIT ASSY3-3 : FRONT IN UNITRefer to DISASSEMBLY : 3.DIGITAL UNIT ASSY3-4 : REMOTE/IPOD UNITand EXPLODED VIEW3-5 : DIGITAL I/O UNIT1 : DIGITA

29、L UNIT ASSY3-6 : V/D JOINT UNIT2-1 : A.VIDEO UNIT3-7 : UCON CONNECT UNIT3-5 : DIGITAL I/O UNIT3-8 : P.SW UNIT3-10 : FFC LOCK UNIT2-2.AUDIO UNIT ASSYRefer to DISASSEMBLY : 4.AUDIO UNITand EXPLODED VIEW2-2 : AUDIO UNIT4-8 : AUDIO LIMIT UNIT3-7 : UCON CONNECT UNIT44.AM FM TUNER6.MAIN CPU UNIT ASSYRefer

30、 to EXPLODED VIEWRefer to DISASSEMBLY : 9.MAIN CPU UNIT ASSY44 : AM FM TUNERand EXPLODED VIEW6-2 : POWER UNIT3-4.REMOTE/IPOD UNIT6-3 : PRIM/CPU SUPPLY UNITRefer to EXPLODED VIEW6-4 : UCON JUNCTION UNIT3-4 : REMOTE IPOD UNIT4.POWER REG. UNIT ASSYRefer to DISASSEMBLY : 7.POWER REG. UNIT ASSYand EXPLOD

31、ED VIEW4-1 : REG UNIT4-6 : PRE AMP UNIT4-7 : AUDIO CONNECT UNIT4-8 : AUDIO LIMIT UNIT4-9 : LIMIT CONNECT UNIT4-10 : V-POWER JUNCTION UNIT6-1.MAIN CPU UNIT Refer to DISASSEMBLY : 8.MAIN CPU UNITand EXPLODED VIEW6-1 : MAIN CPU UNIT5.POWER AMP UNIT ASSYRefer to EXPLODED VIEW5-1 : P.AMP UNIT5-10 : REG C

32、ONNECT UNIT5-11 : P.AMP HOLDER UNIT9AVR-2308CI/AVR-888/AVR-2308/AVC-2308The viewpoint of each photograph(Photography direction)各図視点（撮影方向） Top view Picture APicture DPicture L( Bottom view ) Picture BPicture C Picture E Picture FPicture G Picture H Picture I Picture J Picture K10AVR-2308CI/AVR-888/AV

33、R-2308/AVC-23081. FRONT UNIT ASSY(1) Remove the screws. ( 。 ）(2) Disconnect the connector wires and remove the screws . ( 。 ）Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in FRONT UNIT ASSY.FRONT UNIT ASSY 各基板 EXPLODED VIEW 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY

34、FRONT UNIT ASSY Picture L Bottom view FFC cableCord holderPicture ACutCP302Wire clamp bandPicture CPicture BCP30211AVR-2308CI/AVR-888/AVR-2308/AVC-23082. BACK PANEL (1) Remove the screws. ( 。)Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in BACK PANEL ASSY.BACK PANE

35、L ASSY 各基板 EXPLODED VIEW 参照。3. DIGITAL UNIT ASSY(1) Disconnect the connector wires. ( 。 ） Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in DIGITAL UNIT ASSY DIGITAL UNIT ASSY 各基板 EXPLODED VIEW 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL Cord bushAC cordPict

36、ure DNutNutProceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY Picture ECY035CX076Cord holderCord holderWire clamp bandCUTCX041Board to boardBoard to boardBoard to boardDIGITAL UNIT ASSYA.VIDEO UNIT12AVR-2308CI/AVR-888/AVR-2308/AVC-23084. AUDIO UNIT ASSY(1) Disconnect the connector

37、 wires. ( 。)(2) Disconnect the connector board. . ( 。)Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in AUDIO UNIT ASSY.AUDIO UNIT ASSY 各基板 EXPLODED VIEW 参照。5. AM FM TUNERPlease refer to EXPLODED VIEW for the disassembly method of AM FM TUNER.AM FM TUNER EXPLODED VIE

38、W 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY Board to boardPicture GPicture GBoard to boardProceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY 44.AM FM TUNER 13AVR-2308CI/AVR-888/AVR-2308/AVC-23086. REMOTE/IPOD U

39、NITPlease refer to EXPLODED VIEW for the disassembly method of REMOTE/IPOD UNIT.REMOTE/IPOD UNIT EXPLODED VIEW 参照。7. POWER REG. UNIT ASSY (1) Disconnect the connector wires and remove the screws. ( 。)Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in POWER REG. UNIT A

40、SSY.POWER REG. UNIT ASSY 各基板 EXPLODED VIEW 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY 44.AM FM TUNER 3-4.REMOTE/IPOD UNIT Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY 44.AM FM TUNER 3-4.REMOTE/IPOD UNIT PO

41、WER REG. UNIT ASSY Picture HBoard to boardPicture JCX031Board to boardCord holderPicture JBoard to board14AVR-2308CI/AVR-888/AVR-2308/AVC-23088. MAIN CPU UNIT(1) Remove the screws and disconnect the FFC cables. ( FFC 。)(2) Disconnect the FFC cables and remove the PWB holder. ( FFC 基板。)Please refer t

42、o EXPLODED VIEW for the disassembly method of TRANS.TRANS EXPLODED VIEW 参照。9. POWER AMP UNIT ASSY Please refer to EXPLODED VIEW for the disassembly method of POWER AMP UNIT ASSY.POWER AMP UNIT ASSY EXPLODED VIEW 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT

43、ASSY 44.AM FM TUNER 3-4.REMOTE/IPOD UNIT POWER REG. UNIT ASSY MAIN CPU UNIT Picture AFFC cablePicture IFFC cablePWB holderCX115Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY 44.AM FM TUNER 3-4.REMOTE/IPOD UNIT POWER REG. UNIT ASSY MAIN CPU UNIT POWER AMP UN

44、IT ASSY 15AVR-2308CI/AVR-888/AVR-2308/AVC-230810. MAIN CPU UNIT ASSY(1) Disconnect the connector wires and remove the screws.( 。)Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in MAIN CPU UNIT ASSY.MAIN CPU UNIT ASSY EXPLODED VIEW 参照。11. TRANSPlease refer to EXPLODED

45、 VIEW for the disassembly method of TRANS.TRANS EXPLODED VIEW 参照。Proceeding ( 手順 ) : TOP COVER SUB ASSY BACK PANEL 1.DIGITAL UNIT ASSY 2-2.AUDIO UNIT ASSY MAIN CPU UNIT ASSY PRIM/CPU SUPPLY UNITPWB holderPicture FPOWER UNITPicture FCX022CX512CX021CX023POWER UNITPicture FBoard to boardPOWER UNITProce

46、eding ( 手順 ) : TOP COVER SUB ASSY TRANS 16AVR-2308CI/AVR-888/AVR-2308/AVC-2308CHECK WITH TEST MODEcom/DSP Error Display Mode1. Operation Speccom version display mode:When the following conditions are satisfied at its starting state, error information is displayed before version information.Starting

47、method (same as com version display): E3,JP modelWhile pressing 2 buttons, STATUS and DIMMER , turn on on/off button.Then, press STATUS button to display the following information on the FL Display. E2,E2A modelWhile pressing 2 buttons, RT and PTY , turn on on/off button.Then, press PTY button to di

48、splay the following information on the FL Display.2. Display OrderError information Destination information Main-com version information Sub-com version information DSP version information3. DisplayAny one of the following list is displayed, in the priority of .Condition State DisplaySub-com NGNo re

49、sponse from Sub-com DIR NGNo response from DIR DSP1 NGWhen DSP boot, executing DSP reset makes no change to BUSY port L. 1 No change to BUSY port L before issuing DSP command. 1 When DSP data read, executing WRITE=L makes no change to ACK=H. 1 When DSP data read, executing REQ=L makes no change to A

50、CK=L. 1 When DSP data write, executing WRITE=H makes no change to ACK=H. 1 When DSP data write, executing REQ=L makes no change to ACK=L. 1 When DSP special code boot, executing DSP reset makes no change to BUSY port L. 1 No change to BUSY port L before issuing DSP special read command. 1 No change