Denon-AVR2805-avr-sm维修电路原理图.pdf

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1、AVC-2890SERVICE MANUALMODELAVR-2805/985AV SURROUND RECEIVER/AMPLIFIERFor U.S.A. & Canada model16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 JAPANX0199 V.01 DE/CDM 0404Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual with ref

2、erring to theoperating instructions without fail.For 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Ver. 1RadioFans.CN 收音机爱 好者资

3、料库2AVR-2805/985/AVC-2890SAFETY 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 chassisresistan

4、ce 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.(1)(2)500V1M(1)(2)RadioFans.CN 收音机爱 好者资料库3AVR-2805/985/AVC-2890WIRE ARRANGEMENTIf wire bundles are untied or moved to perform adjust

5、ment 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 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4AVR-2805/985/AVC-2890CAUTION IN SERVICIN

6、GInitializing AV SURROUND RECEIVERAV SURROUND RECEIVER initialization 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 MODE button and ANALOG button, and switch on the unit.3. Check that the entire display is flas

7、hing with an interval of about 1 second, and release 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 t

8、o memorize your setting for restoring after the initialization.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. OFF 。2.MODE ANALOG 同時押、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。5AVR-2805/985/AVC-2890ADJUSTMENTAudio SectionIdling Current (1U-3469-1)Required meas

9、urement equipment: DC Voltmeter1. Preparation(1) Avoid direct 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,

10、etc.)2. Adjustment(1) Remove top cover and set VR101, VR102, VR201, VR301, VR302, VR401, VR402, on 1U-3469-1 (Power Unit) at fully counterclockwise ( ).(2) Connect DC Voltmeter to test points (FRONT-Lch:TP301 pin, FRONT-Rch: TP101 pin, CENTER ch: TP301 pin, SURROUND-Lch: TP101 pin, SUR-ROUND-Rch: TP

11、101 pin, SURROUND BACK-Lch: TP301 pin, SURROUND BACK-Rch: TP301 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 minutes, and turn VR101 clockwise ( ) to ad-just the TEST POINT voltage to

12、6.5 mV 0.5 mV DC.(6) After 10 minutes from preset, turn VR101 to set the volt-age 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 VR101 to set the voltage to 8 m 0.5 mV DC.(9) Adjust the Variable Resistors of other channels in

13、the same way.調整電流調整 (1U-3469-1)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、1U-3469-1（）VR101, VR102, VR201, VR301, VR302, VR401, VR402 反時計方向 ( ) 回切状態。(2) (FRONT-Lch: TP301 pin, FRONT- Rch: TP101 pin, CENTER ch: TP301 pin, SURROUND-Lch: TP101 pin

14、, SURROUND-Rch: TP101 pin, SURROUND BACK-Lch: TP301 pin, SURROUND BACK-Rch: TP301 pin) 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）無負荷（、抵抗器接続。 ）MODE : 7CH STEREOFUNCTION : CD(5) 2 分以内 VR101 時計方向 ( ) 回電圧次調整。6.5mV 0.5mV DC(6) 予備調整 10 分後

15、VR101 回、次電圧設定。8mV 0.5mV DC(7) 同方法各可変抵抗調整。(8) (6) 項設定 5 分後 VR101 回、次電圧設定。8mV 0.5mV DC(9) 同方法各可変抵抗調整。6AVR-2805/985/AVC-2890DC VoltmeterFL chC chSBR chSBL ch VR402VR401SBR chSBL chVR102FR chVR101FL chVR201SR chSL chFR chC chVR301SL chVR302SR chTP301TP101Audio Section7AVR-2805/985/AVC-2890Video SectionC

16、omponent Video Level AdjustmentRequired measurement equipment etc.: Oscilloscope, DVDVIDEO PLAYER (ex: DVD-1500)Test disc: DVD T-S011. Preparation(1) Avoid direct 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) Playback the co

17、lor-bar 75% of the Test Disc (Title 12) us-ing the DVD Video Player, and check that Y and C levels of the S terminal output are within the specified output levels.If they are out of the specified levels, adjust with the vari-able resister inside of the unit.(3) Presetting POWER (Power source switch)

18、OFF SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.) DVD (Video terminal)No input2. Adjustment(1) Remove top cover and set VR101, VR102, VR103, on 1U-3602-1 (Convert Unit) at fully counterclockwise ().(2) Connect a pin-plug terminated with 75-ohms to Y (Cb, Cr) of the

19、Component Video Monitor Output, and hook up the Oscilloscopes probe to both ends of the pin-plug.(3) Connect S terminal output of the DVD Player with the DVD input terminal of the Receiver.(4) Connect power cord to AC Line, and turn power switch ON.(5) Presetting. FUNCTION:DVD Playback the color-bar

20、 75% of the Test Disc (Title 12)(6) Turn VR101 clockwise ( ) to adjust the COMPONENT Video Y voltage (except H. Sync) to 714 50 mVp-p. (Re-fer to Fig. 1)(7) Adjust the Variable Resistors of Cb: VR102 and Cr: VR103 in the same way. (Refer to Fig. 2, 3)Cb,Cr: 486 50 mVp-p. (U.S.A. & Canada model)525 5

21、0 mVp-p. (Others)調整調整必要測定器 : Oscilloscope, DVD VIDEO PLAYER( 例 : DVD-1500) :DVD T-S011. 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) DVD VIDEO PLAYER 75% (Title 12) 再生、S 端子出力 Y、C 正規出力確認。正規出力場合、内部可変抵抗器調整。(3) 電源OFF端子無負荷( 抵抗器接続。)DVD 入力端子無入力2. 調整(1) 上、1U-3602-1（） VR101, VR102, VR103 反時計方向 ( ) 回切状態。(2)

22、Y (Cb, Cr) 75 終端接続、両端Oscilloscope 。(3) DVD VIDEO PLAYER S 端子出力本機 DVD 入力端子接続。(4) 電源電源接続、電源 ON 。(5) ON 後、次。本機 FUNCTION DVD 。 75% (Title 12) 再生。(6) VR101 時計方向 ( ) 回Y (H. Sync 除 ) 電圧調整。(Fig. 1 参照 )714mV 50mVp-p(7) 同方法 Cb: VR102、 Cr: VR103 可変抵抗器調整。(fig. 2、3 参照 )Cb, Cr: 525 50mVp-p8AVR-2805/985/AVC-2890VR

23、102VR101VR103CrCbOscilloscopeComponent Video YVideo Section9AVR-2805/985/AVC-289071450mVp-pVoltsIRE:FLTY-Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV (U.S.A. & Canada model) p-p52550mV (Others)p-pVoltsIRE:FLT0.020.040.0-0.5-50.050.00.00.50.060.080.048650mV (U.S.A. & Canada model)

24、 p-p52550mV (Others)p-pVoltsIRE:FLT0.020.040.0-0.5-50.050.00.00.50.060.080.0Fig.1 Component Video Y signalFig.2 Cb signalFig.3 Cr signal10AVR-2805/985/AVC-2890BLOCK DIAGRAMS (1/2)AUDIO SECTION11AVR-2805/985/AVC-2890BLOCK DIAGRAMS (2/2)VIDEO SECTION12AVR-2805/985/AVC-2890LEVEL DIAGRAMS (1/2)13AVR-280

25、5/985/AVC-2890LEVEL DIAGRAMS (2/2)14AVR-2805/985/AVC-2890CLOCK FLOW & WAVE FORM IN DIGITAL BLOCKCH1: D-DATA(IC511 (5) )1CH1: DATACH2: fsCH3: 64fsCH4: 256fs3CH1: DATACH2: fsCH3: 64fs2INPUTCOAXIAL-1COAXIAL-2OPTICAL-1OPTICAL-2OPTICAL-3OPTICAL-4OPTICAL-3OPTICAL-4INPUTWave formIC511IC513DIRSN74HCLC89057W

26、RDATA (21)SLRCK (23)SBCK (22)(4) RX2RMCK (16)RBCK (17)RLRCK (20)ADIN (24)12.288MHz(29) XIN151APW244APW(94) DAI_P20(78) DAI_P11(79) DAI_P12(71) DAI_P9(77) DAI_P10DAI_P16 (86)DAI_P15 (82)DAI_P14 (81)DAI_P13 (80)CODECSelectorADSP-21266IC515BUFFERDSPDATAfsfs64fs64fs256fsIC906DSDATA1 (41)DSDATA2 (42)DSDA

27、TA3 (43)DSDATA4 (44)(38) DBCLK(37) DLRCK(46) ALRCK(45) ABCLK(49) ASDATA(47) MCLKAD1835ISMODEIC61174LVX157MTC(02) (03)(05) (06)(11) (10)(14) (13)(04)(07)(09)(12)IC610GNDSN74LV(2)- -(18)(13)- -(7)(11)- -(9)(15)- -(5)(17)- -(3)(4)- -(16)(6)- -(14)(8)- -(12)(3)(2)(12) (5)(13)(14)(15)OPTICAL-5(1)SELECTOR

28、OUTPUTOUTPUTIC512IC514FCX0-03SN74HC151APW(3)(3)(1)(2)(12)(13) (5)(14)(15)SELECTOR1223315AVR-2805/985/AVC-2890CHECK 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 befor

29、e version information.Starting method (same as com version display):While pressing 2 buttons, DIMMER (S11) and STATUS (S14), plug the AC cord to the wall outlet.Then, press STATUS button to display the following information on the FL Display.2. Display OrderError information Main-com version informa

30、tion Sub-com version information DSP version information3. DisplayAny one of the following list is displayed, in the priority of .Condition State DisplaySub-com NGNo response from Sub-com DIR NGNo response from DIR DSP NGWhen DSP boot, executing DSP resetmakes no change to BUSY port L. No change to

31、BUSY port L before issuing DSP command. When DSP data read, executing WRITE=Lmakes no change to ACK=H. When DSP data read, executing REQ=Lmakes no change to ACK=L. When DSP data write, executing WRITE=Hmakes no change to ACK=H. When DSP data write, executing REQ=Lmakes no change to ACK=L. When DSP s

32、pecial code boot, executing DSP resetmakes no change to BUSY port L. No change to BUSY port L before issuingDSP special read command. No change to BUSY port L before DSP version read. Both SUB/DSP OK (No error display, version display only)方法DSP 表示1. 動作仕様表示 :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 ):DIMM

33、ER(S11), STATUS(S14) 2 押状態、AC 差込。後、STATUS 押下表内容 FL Display 表示。2. 表示順序情報 情報 情報 DSP 情報3. 表示条件下表表示。表示優先順、 。条件状態表示内容条件状態表示内容 SUB NGSUB 応答 DIR NG DIR 応答 DSP 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 DS

34、P 前、BUSY L SUB/DSP 共 OK ( 表示表示行 )16AVR-2805/985/AVC-2890SEMICONDUCTORSOnly major semiconductors are shown, general semiconductors etc. are omitted to list.主半導体記載。汎用半導体記載省略。 1. ICsNote : Abbreviation ahead of IC No. indicates the name of P.W.B., etc.注 ) :IC No. 前記号、基板名称表。PO : Power P.W.B.AC : Amp Con

35、nect P.W.B.CV : Connect/Video P.W.B.AD : Audio/Digital P.W.B.CO : Control P.W.B.VI : Video Convert P.W.B.M30624MGAFP (CO: IC506)M30624MGAFP Terminal Function1303150100815180TOP VIEWPinNo.Pin NameFunctionI/O1P96/SOUT4 PLRDS DATAOCZO/LO/LPLL & RDS control pin (LC72131 & LC72722)2P95/CLK4PLRDS CLKOCZO/

36、LO/LPLL & RDS control pin (LC72131 & LC72722)3P94/TB4PLL STBOCZO/LO/LPLL control pin (LC72131)4P93/TB3OSD RSTOCZO/LO/LOSD control pin (M35015)5P92/SOUT3 OSD DATAOCZO/LO/LOSD control pin (M35015)6P91/SIN3OSD STBOCZO/LO/LOSD control pin (M35015)7P90/CLK3OSD CLKOCZO/LO/LOSD control pin (M35015)8BYTEBYT

37、EGND (Ext. data bus bit width switching, 16bit: L)9CNVCSCNVSSSingle-chip/Micro-processor mode switching(Normal single-chip: L, Rewrite boot program start:H input set)10P87ISEL BILvEuZO/LO/LInput selector rotation detect input(Rotary encoder)11P86ISEL AILvEuZO/LO/LInput selector rotation detect input

38、(Rotary encoder)12RESET_RESETILvEuLIIReset input13XOUTX1OOscillator connection14VSSVSSGND15XINX2IIIOscillator connection16VCCVCC+5V17P85/NMI_NMIINot used (Fixed to H)18P84/INT2_B. DOWNIE&LEuZIIPower down detect (Power down: L)19P83/INT1_PROTECTIE&LEdZIIProtection detect input (Detected: L)20P82/INT0

39、REMOCONIE&LZIIRemote control signal input21P81VSEL AILvEuZIO/LMaster VR rotation detect input (Rotary encoder)SymbolType DetOp(Int.)Op(Ext.)Res STBY Stop17AVR-2805/985/AVC-289022P80VSEL BILvEuZO/LO/LMaster VR rotation detect input (Rotary encoder)23P77FUNC STB1OCZO/LO/LSTB output for function switch

40、ing control(L-ch INPUT&REC/ZONE, EXT. IN)24P76FUNC CLKOCZO/LO/LCLK output for function switching control25P75FUNC DATAOC-ZO/LO/LDATA output for function switching control26P74FUNC STB2OCZO/LO/LSTB output for function switching control(R-ch INPUT&REC/ZONE)27P73/CTS2FL DATAOCZO/LO/LFL tube control pin

41、 (LC75721E)28P72/CLK2FL CLKOCZO/LO/LFL tube control pin (LC75721E)29P71/RXD2H/P DETIZO/LO/LH/P detect input (Detected: H)30P70/TXD2TUNER POWERONEuZO/LO/LTUNER power on/off switching (H: ON)31P67/TXD1TxDOCZO/LO/LData transfer pin to outside32P66/RXD1RxDILvZIIData receive pin from outside33P65/CLK1RES

42、ET2OCEdZO/LO/LSUB-com reset output34P64/CTS1ACKOCEdZO/LO/LMAIN-SUB com comm. control pin35P63/TXD0MOSIOCEdZO/LO/LMAIN-SUB com comm. control pin36P62/RXD0MISOILvEdZIIMAIN-SUB com comm. control pin37P61/CLK0TRIGGER SW 2OCZO/LO/LTRIGGER SW 2 control pin38P60/CTS0E.VOL STBOCZO/LO/LE-VR control output (T

43、C94A27)39P57E.VOL CLKOCZO/LO/LE-VR control output (TC94A27, TC9459)40P56E.VOL DATAOCZO/LO/LE-VR control output (TC94A27, TC9459)41P55/EPMFRASH EPMILvZIIRewrite boot program start: L input set42P54VSDAI/OCZIO/LVIDEO IC (Chroma decoder, 3D Y/C) control pin43P53VSCLI/OCZIO/LVIDEO IC (Chroma decoder, 3D

44、 Y/C) control pin44P52FL RSTOCEdZO/LO/LFL tube control pin (LC75721E)45P51FL CE1OCZO/LO/LFL tube control pin (LC75721E)46P50/CEFRASH CEIZIIRewrite boot program start: H input set47P47V.EXP CLKOCZO/LO/LCLK output for video switching expander control(BU4094B)48P46 V.EXP DATAOCZO/LO/LDATA output for vi

45、deo switching expander control(BU4094B)49P45V.EXP OEOCEdZO/LO/LOE output for video switching expander control(BU4094B)50P44V.EXP STBOCZO/LO/LSTB output for video switching expander control(BU4094B)51P43H/P RELAYOCZO/LO/LH/P relay control (H: ON)52P42S BACK RELAYOCZO/LO/LRelay control for SURROUND BA

46、CK SP53P41SA-RELAYOCZO/LO/LRelay control for FRONT A SP54P40SB-RELAYOCZO/LO/LRelay control for FRONT B SP55P37C-RELAYOCZO/LO/LRelay control for CENTER SP56P36F-RELAYOCZO/LO/LRelay control for SURROUND SP57P35PRE F MUTEOCZO/LO/LFRONT PREOUT output muting control, L: Muting58P34PRE C MUTEOCZO/LO/LCENT

47、ER PREOUT output muting control,L: Muting59P33PRE S MUTEOCZO/LO/LSURROUND PREOUT output muting control,L: Muting60P32PRE SB MUTEOCZO/LO/LSURROUND BACK PREOUT output mutingcontrol, L: Muting61P31SUB WOOFER MUTEOCZO/LO/LSUB WOOFER PREOUT output muting control,L: Muting62VCCVCC+5V63P30MULTI MUTEOCZO/LO

48、/LPin-jack output muting control of MULTI, L: Muting64VSSVSSGND65P27VOL MUTEOCZO/LO/LPOWER AMP input muting control, L: Muting66P26S.BACK VOL MUTEOCZO/LO/LSURROUND BACK POWER AMP input mutingcontrol, L: Muting67P25TUNER MUTEOCZO/LO/LTUNER muting controlPinNo.Pin NameFunctionI/OSymbolType DetOp(Int.)

49、Op(Ext.)Res STBY Stop18AVR-2805/985/AVC-289068P24GRN LEDOCZO/LO/LLED control pin69P23FL CE2OCZO/LO/LFL tube control pin (LC75721E)70P22S MONI. DETILvEuZ O/LO/LS-monitor connection detect input (L: Connected)71P21S SIG. DETILvEuZ O/LO/LS-signal detect input (H: S-signal inputted)72P20SYNC. DETILvEuZI

50、ISync. detect input (H: Ext. synchronized)73P17/INT5RDS DATAOUTIE&LIO/LRDS data input (LC72722)74P16/INT4REQIE&LEdZIIMAIN-SUB com comm. control pin75P15/INT3POWER KEYIE&LIO/LInterrupt port for WAIT mode cancel76P14/D12RSPOWEROCEdZO/HO/LSame logic as POWER port,when STANDBY mode: H77P13/D11RECINHAOCZ