Denon-AVC2308CI-avr-sm维修电路原理图.pdf

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1、TOKYO, JAPANDenon 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 differen

2、t from the actual 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.03 DE/CDM 0708SERVICE MANUALAV SURROUND RECEIVERAV SURROUND AMPLIFIERMODELJPE3E2EKE2AE1CEUTAVR-2308CI? ?AVR-888? ?AVR-2308?AVC-2308? ?V

3、er. 322Please refer to theMODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库heed the points listed below during servicing and inspection.ent on when serv c ng, such astc., have caut ons nd cated oned these caut ons and the cau-g nstruct ons.g electric shock!ed on th s set, so touch ng nter- set s energ zed

4、 cou d causeo avo d e ectr c shock, by for ex-transformer and g oves whennerg zed, unp ugg ng the power, etc.s ns de. Hand e w th extra care.sassembly and assembly!when manufactur ng parts fromme rare cases be burrs on theause njury f f ngers are movedrotect your hands.ed parts!c safety propert es (

5、f re res s-c.). For rep acement parts, bethe same propert es. In part cu-rts that are marked ! on w r ngure to use the des gnated parts.parts and arrange theoriginally!s use tape, tubes or other nsu-rts are mounted away from theds. Care s a so taken w th theand c amps are used to keeph gh vo tage pa

6、rts, so be sure toor g na y.Inspect for safety after servicing!Check that a screws, parts and w res removed or d scon-nected for serv c ng have been put back n the r or g na pos -t ons, nspect that no parts around the area that has beenserv ced have been negat ve y affected, conduct an nsu at onchec

7、k on the externa meta connectors and between theb ades of the power p ug, and otherw se check that safety sensured.(Insu at on check procedure)Unp ug the power cord from the power out et, d sconnect theantenna, p ugs, etc., and turn the power sw tch on. Us ng a500V nsu at on res stance tester, check

8、 that the nsu at on re-s stance between the term na s of the power p ug and the ex-terna y exposed meta parts (antenna term na , headphonesterm na , m crophone term na , nput term na , etc.) s 1M orgreater. If t s ess, the set must be nspected and repa red.Concerning important safety partsMany of th

9、e e ectr c and structura parts used n the set havespec a safety propert es. In most cases these propert es ared ff cu t to d st ngu sh by s ght, and us ng rep acement partsw th h gher rat ngs (rated power and w thstand vo tage) doesnot necessar y guarantee that safety performance w be pre-served. Pa

10、rts w th safety propert es are nd cated as shownbe ow on the w r ng d agrams and parts sts s th s serv cemanua . Be sure to rep ace them w th parts w th the des gnat-ed part number.(1) Schemat c d agrams . Ind cated by the ! mark.(2) Parts sts . Ind cated by the ! mark.Us ng parts other than the des

11、 gnated partscou d resu t n e ectr c shock, f res or otherdangerous s tuat ons.o the customer, make sure you make e ther (1) a eakage current check or (2) a ne to chass skage current exceeds 0.5 mamps, or f the res stance from chass s to e ther s de of the powers, the un t s defect ve.CAUTION、点検時注意願

12、。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

13、慮、 必元。後安取外、 、電源刃間全性確保（絶縁方法）電源電源外、電源、電源端子、端間、絶縁抵抗値。値以下安全上重本機使用多上、 特別特性持外観判別格電力、耐圧）持、限。安配必指定。(1) 配線図 ! (2) 部品表 ! 指定、感電、。注意注意RadioFans.CN 收音机爱 好者资料库3AVR-2308CI / AVR-888 / AVR-2308 / AVC-2308DIMENSION AVR-2308CI / AVR-2308 / AVC-2308 model 26.454.7372.8244.542020.8170.515.51554343444AVR-2308CI / AVR-88

14、8 / AVR-2308 / AVC-2308 AVR-888 model 22.456.2372.8244.542020.8170.515.51554343445AVR-2308CI / AVR-888WIRE 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, in

15、correct arrangement can be a cause of noisegeneration.Wire arrangement viewed 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 side6AVR-2308CI / AVR-888 / AVR-2308 / AVC-2308CAUTION IN SERVICINGInitializing AV SURROUND RECEIVER/AM-PLIFIERAV SURROUND RECEIVER/AMPLIFIER i

16、nitialization should be performed when the com, peripheral parts of com, and Digital 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 r

17、elease your fingers from the 2 buttons and the microprocessor will be initialized.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 restoring after th

18、e initialization.JIG to use for servicingWhen you repair the printing board, you can use the following JIG (Extention cable kit). Please order to Denon Official Service Distributor in your region if necessary.00D SPK- 561 EXTENSION UNIT KIT : 1 Set00D SPK- 562 TUCP CONN. JOINT KIT : 1 Set時注意事項AV / 初

19、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 ( 延長）下記。必要応販社注文下。00D SPK- 561 EXTENSION UNIT KIT : 1 式00D SPK- 562 TUCP CONN. JOINT KIT : 1 式1,22,3ns are sat sf ed

20、 at ts start ng state, error nformat on s d sp ayed before vers on nformat on.s com version display):STATUS and DIMMER , turn on on/off button.on to d sp ay the fo ow ng nformat on on the FL D sp ay.RT and PTY , turn on on/off button.o d sp ay the fo ow ng nformat on on the FL D sp ay.at on nformat

21、on Ma n-com vers on nformat on Sub-com vers on nformat onns d sp ayed, n the pr or ty of .State Displaynse from Sub-com nse from DIR P boot, execut ng DSP reset makes no change to BUSY port L. 1 e to BUSY port L before ssu ng DSP command. 1 P data read, execut ng WRITE=L makes no change to ACK=H. 1

22、P data read, execut ng REQ=L makes no change to ACK=L. 1 P data write executing WR TE=H makes no change to ACK=H 1 P data wr te, execut ng REQ=L makes no change to ACK=L. 1 P spec a code boot, execut ng DSP reset makes no change to rt L. 1 e to BUSY port L before ssu ng DSP spec a read command. 1 e

23、to BUSY port L before DSP vers on read. 1 (No error d sp ay vers on d sp ay on y)STATUSMMERon/off buttonRTPTYE2E2A model起動状態下記条件該当場合、情報表示前情報表示起動方法 ( 表示同様 ): E3,JP STATUS, DIMMER 2 押状態、on/off 押電源入後、STATUS 押下表内容 FL Display 表示。 E2,E2A RT, PTY 2 押状態、on/off 押電源入。後、PTY 押下表内容 FL Display 表示。2. 表示順序情報 仕向地表示

24、情報 3. 表示条件下表表示。表示優先順、 。条件状態 SUB NGSUB 応答 DIR NG DIR 応答 DSP 1 NGDSP 時、DSP 実行 BUSY L DSP 発行前、BUSY L DSP 時、WRITE=L ACK=H DSP 時、REQ=L ACK=L DSP 時、WRITE=H ACK=H DSP 時、REQ=L ACK=L DSP 時、DSP 実行BUSY L DSP 発行前、BUSY L DSP 前BUSY L on/off buttonSTATUSD MMERE3JP modelon/off buttonE2E2A model8AVR-2308CI / AVR-888

25、 / AVR-2308 AVC-2308ADJUSTMENTAudio SectionIdling Current (1U-3854-1)Required measurement equipment: DC VoltmeterPreparation(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture 15C 30C (59F 86F).(2) PresettingPOWER (Power sourse switch)OFFS

26、PEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)Adjustment(1) Remove top cover and set VR401, VR402, VR403, VR404, VR405, VR406, VR407, on 1U-3854-1 (Power Amp Unit) at fully counterclockwise ().(2) Connect DC Voltmeter to test points (FRONT-Lch: CX063 pin, FRONT-Rch: C

27、X063 pin, CENTER ch: CX063 pin, SURROUND-Lch: TP102 pin, SURROUND-Rch: CX082 pin, SURROUND BACK-Lch: CX082 pin, SURROUND BACK-Rch: CX082 pin).(3) Connect power cord to AC Line, and turn power switch ON.(4) Presetting.MASTER VOLUME : - counterclockwise ( min.)MODE: 7CH STEREOFUNCTION: CD(5) Allow 2 m

28、inutes, and turn VR401 clockwise () to adjust the TEST POINT voltage to 6.5 mV 0.5 mV DC.(6) After 10 minutes from preset, turn VR401 to set the voltage to 8 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other channels in the same way.(8) After 5 minutes from (6), turn VR401 to set the voltage t

29、o 8 mV 0.5 mV DC.(9) Adjust the Variable Resistors of other channels in the same way.調整電流調整（1U-3854-1）調整必要測定器：DC Voltmeter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。 ）調整(1) 上、1U-3854-1（） VR401、 VR402、 VR403、 VR404、 VR405、 VR406、 VR407反時計方向（）回切状態。(2) （FRONT-Lch: CX063 pin、 FRONT-Rc

30、h: CX063 pin、CENTER ch: CX063 pin、SURROUND-Lch: CX082 pin、SURROUND-Rch:CX082 pin、SURROUND BACK-Lch: CX082 pin、SURROUND BACK-Rch: CX082 pin） DC Voltmeter 接続。(3) 電源 AC 電源接続、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）無負荷（、抵抗器接続。 ）MODE：7CH STEREOFUNCTION ： CD(5) 2 分以内 VR401 時計方向（）回電圧次

31、調整。6.5 mV 0 5 mV DC(6) 予備調整 10 分後 VR401 回、次電圧設定。8 mV 0.5 mV DC(7) 同方法各可変抵抗調整。(8) (6) 項設定 5 分後 VR401 回、次電圧設定。8 mV 0.5 mV DC(9) 同方法各可変抵抗調整。9AVR-2308CI / AVR-888 / AVR-2308 AVC-2308The adjustment volume and connection terminal of 1U-3854-1 (POWER AMP Unit)P.W.B. under 1U-3841-1 (REG Unit)P.W.B.Insert a

32、n adjustment driver / connection terminal from an adjust-ment aperture of 1U-3841-1 (REG Unit)P.W.B.SL chFR chFL chSR chCX063C chSBR chSBL chCX082Audio SectionDC VoltmeterVR406SBR chSBL chVR403FR chSR chVR401VR405SL chC chVR404FL chVR407VR402CX063CX0821U 38541 POWER AMPUnit1U 3841 1 REG Unit1U-3854-

33、1(POWER AMP Unit) 基板調整接続端子 1U-3841-1(REG Unit) 基板下有。1U-3841-1(REG Unit) 基板調整孔調整 / 接続端子挿入。YESAre there any ncomp ete con-nect ons n the connectors con-nect ng between the var ousc rcu t boards?NOIs there a short c rcu t betweenthe speaker term na s and theground?YESCorrect the short c rcu tbetween th

34、e speaker and theground.YESNOConnect the connectors prop-er y.Check for damage n the poweramp f er c rcu try parts andrep ace any defect ve parts.NORefer to Fuse s b ownNOIs a DC 6V vo tage be ng sup-p ed from the 1U-3857-3 board(CX126 p ns 7 and 8) to them croprocessor?NOIs a DC 6V vo tage output w

35、henthe connector supp y ng thepower from the 1U-3857-3board to the m croprocessor(CX126) s unp ugged?NOCheck the parts from IC501 tothe pr mary c rcu try andrep ace any defect ve parts.YESYESCheck the 1U-3857-1 boardsm croprocessor per phery c r-cu try and rep ace any defec-t ve parts.Check the c rc

36、u try and partsfrom CX126 on the 1U-3857-3board to the m croprocessor fordamage and short-c rcu ts, andrep ace any defect ve parts.Fuse is blownCheck for short c rcu ts n therect f er d odes and c rcu try ofthe secondary s de rect fy ngc rcu ts, and rep ace any defec-t ve parts.Check for short c rcu

37、 ts n thepower stab zer un ts regu a-tor output term na and theground, and rep ace any defec-t ve parts.After repa r ng, a so rep ace the fuse.1.2. 断線電源入/ 赤色点滅？YES各基板間接続不完全接続部分？NOSP 端子 GND 間短絡？YESNONO正接続。POWER AMP 回路部品破損確認、不良部品交換。断線？NO断線参照。YESPOWER SW OFF 、再度 POWER SW ON 電源入？NO1U-3857-3 基板（CX126 7、8

38、番） DC6V供給？NO1U-3857-3 基板電源供給（C126）抜 DC6V 出力？YESYESYESPOWER SW等含1次回路部品 ( 接触不良等 ) 確認、不良部品交換。1U-3857-1 周辺回路確認、不良部品交換。1U-3857-3 基板 C126 以降電源回路部品破損短絡確認、不良部品交換断線1 次側部品短絡確認、不良部品交換。2 次側整流回路、整流回路短絡確認、不良部品交換。電源安定化部出力端子 GND 短絡確認、短絡場合、不良部品交換。修理後、FUSE 交換。(COMPONENT1 nput) Check ng the v deo convert ON/OFF sett n

39、gso convert ONV deo convert OFFInputSInput COMPONENTInputCVBSInputSInput COMPONENTBInter aceor Progress veDNo outputNo outputInter aceCProgress ve no output ON/OFF 設定確認 ON入力CVBS入力S入力 COMPONENT入力 CVBSA B or D 出力 C 出力ed 1U-3853-1 A VIDEO UNIT partA.VIDEO UNITk 5VA.X077-3,4p nX077-5p nNGTo troub eshoot

40、 ng 1.1 Power not turnon.OKA.VIDEO UNITput of ana og SW.C109-13p nIC109-3p nNGCheck ana og SW sett ngs.IC109-9,10,11p n : L(0V)IC109-6p : L(0V)NGCheck IC301 and CX073 so der ng, or DIGITAL UNIT f aw.OKOKCheck so der ng of IC109.output of AMP.C115-5p nIC115-7p nNGCheck so der ng of IC115 and surround

41、 ng parts.OKoutput of AMP.C309-3p nIC309-1p nNGCheck so der ng of IC309 and surround ng parts.OK-3852 DIGITAL UNIT. CX113-5p nNGCheck so der ng of CX113.OKof v deo dr ver.IC305-2p nIC305-4p nNGCheck CX113 so der ng, or DIGITALUNIT f aw.OK of v deo dr ver.IC305-36p nNGCheck so der ng of IC305.OKput o

42、f ana og SW.C108-14p nC108-13p nNGCheck ana og SW sett ngs.IC108-10p n : H(+5V)IC108-9p n : L(0V)NGCheck IC301 and CX073 so der ng, orDIGITAL UNIT f aw.OKOKCheck so der ng of IC108.output of AMP.C112-5p nIC112-7p nNGCheck so der ng of IC112.OKen ma n un t and on tor. 特記載場合 1U-3853-1 A VIDEO UNIT 部品1

43、U-3853-1 A.VIDEO UNIT 5VA 確認+5VA : CX077-3,4pin-5VA : CX077-5pinNG1.1 電源入OK1U-3853-1 A.VIDEO UNIT SW 入出力確認入力 : IC109-13pin出力 : IC109-3pinNG SW 設定確認IC109-9,10,11pin : (0V)IC109-6pi : (0V)NGOKOKIC109 付確認AMP 入出力確認入力 : IC115-5pin出力 : IC115-7pinNGIC115 及周辺部品 付確認OKAMP 入出力確認入力 : IC309-3pin出力 : IC309-1pinNG

44、IC309 及周辺部品 付確認OK1U-3852 DIGITAL UNIT 出力確認出力 V : CX113-5pinNGCX113 付確認OK入力確認入力 Y : IC305-2pin入力 C : IC305-4pinNGCX113 付確認 DIGITAL UNIT 不具合OK出力確認出力 V : IC305-36pinNG IC305 付確認OK SW 入出力確認入力 : IC108-14pin出力 : IC108-13pinNG SW 設定確認IC108-10pin : H(+5V)IC108-9pin : (0V)NGOKOKIC108 付確認AMP 入出力確認入力 : IC112-5

45、pin出力 : IC112-7pinNGIC112 付確認OK本体 -MONITOR 間 MONITOR 確認A.VIDEO UNITk 5VA.X077-3,4p nX077-5p nNGTo troub eshoot ng 1.1 Power not turnon.OKA.VIDEO UNITput of ana og SW.IC102-13p nIC106-13p n: IC102-3p n: IC106-3p nNGCheck ana og SW sett ngs.IC102-9,10,11p n : L(0V)IC102-6p n : L(0V)IC106-9,10,11p n :

46、L(0V)IC106-6p n : L(0V)NGCheck IC301 and CX073 so der ng, or DIGITAL UNIT f aw.OKOKCheck solder ng of C102 and C106output of AMP.IC113-5p nIC114-5p n: IC113-7p n: IC114-7p nNGCheck so der ng of IC113, IC114 andsurround ng parts.OKoutput of AMP.IC308-3p nIC308-5p n: IC308-1p n: IC308-7p nNGCheck so d

47、er ng of IC308 and sur-round ng parts.OK-3852 DIGITAL UNIT. CX113-3p n CX113-1p nNGCheck so der ng of CX113.OKof v deo dr verIC305-2p nIC305-4p nNGCheck CX113 so der ng, or DIGITALUNIT f aw.OK of v deo dr ver.IC305-36p nNGCheck so der ng of IC305.OKput of ana og SW.C108-14p nC108-13p nNGCheck ana og

48、 SW sett ngs.IC108-10p n : H(+5V)IC108-9p n : L(0V)NGCheck IC301 and CX073 so der ng, orDIGITAL UNIT f aw.OKOKCheck so der ng of IC108.output of AMP.C112-5p nIC112-7p nNGCheck so der ng of IC112.1U-3853-1 A.VIDEO UNIT 5VA 確認+5VA : CX077-3,4pin-5VA : CX077-5pinNG1.1 電源入OK1U-3853-1 A.VIDEO UNIT SW 入出力

49、確認入力 Y : IC102-13pin入力 C : IC106-13pin出力 Y : IC102-3pin出力 C : IC106-3pinNG SW 設定確認IC102-9,10,11pin : (0V)IC102-6pin : (0V)IC106-9,10,11pin : (0V)IC106-6pin : (0V)NGOKOKIC102, IC106 付確認AMP 入出力確認入力 Y : IC113-5pin入力 C : IC114-5pin出力 Y : IC113-7pin出力 C : IC114-7pinNGIC113,IC114 及周辺部品付確認OKAMP 入出力確認入力 Y :

50、 IC308-3pin入力 C : IC308-5pin出力 Y : IC308-1pin出力 C : IC308-7pinNGIC308 及周辺部品付確認OK1U-3852 DIGITAL UNIT 出力確認出力 Y : CX113-3pin出力 C : CX113-1pinNGCX113 付確認OK入力確認入力 Y : IC305-2pin入力 C : IC305-4inNGCX113 付確認 DIGITAL UNIT 不具合OK出力確認出力 V : IC305-36pinNGIC305 付確認OK SW 入出力確認入力 : IC108-14pin出力 : IC108-13pinNG SW