Denon-AVC2870-avr-sm维修电路原理图.pdf

SERVICE MANUALMODELAVR-2803/983AVC-2870AV SURROUND RECEIVER/AMPLIFIERFor U.S.A., Canada, Europe, Asia,China, Hong Kong, Taiwan R.O.C.,Korea & Japan modelSome illustrations using in this service manual areslightly different from the actual set.Please use this service manual with referring to the補修用性能部品保有期間、製造打切後8年。本機仕様性能改良、予告変更。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。operating instructions without fail.16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPANTelephone: 03 (3837) 5321X0163 V.02 DE/CDM 0302Ver. 2RadioFans.CN 收音机爱 好者资料库22AVR-2803/983/AVC-2870SAFETY 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 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33AVR-2803/983/AVC-2870DISASSEMBLY(Follow the procedure below in reverse orderwhen reassembling)1. Top CoverRemove 3 screws on the rear and 6 screws on bothsides to detach the Top Cover as shown in the arrowdirection.2. Front Panel(1)Remove 7 screws from the top and bottom edges of the Front Panel.(2)Release 4 top and bottom Hooks, then detach the Front Panel as shown in the arrow direction. 3. Inner PanelPull out the Inner Panel in the arrow direction after removing 3 screws.各部（組立、逆順序。 ）1. Top Cover後面 3 本、両側 6 本 Top Cover 矢印方向取。2. Front Panel(1)Front Panel 上下面 7 本。(2)Front Panel 上下止 4 個 Hook 、Front Panel 矢印方向取。3. Inner Panel 3 本、Inner Panel 矢印方向取。Top CoverHookHookHookFront PanelHookInner Panel44AVR-2803/983/AVC-28704.Inner Panel Assy(1) Remove 3 round and 1 square knobs, and unscrew 4nuts.(2) Remove 14 screws fixing each P.W.B.5.Amp Connect Unit/Component Video Unit(1)Remove 9 screws to detach Pre-out Unit andComponent Video Unit.(2)Take off the Amp Connect Unit as shown in the arrowdirection after removing 1 screw.6.Regulator UnitTake off the Regulator Unit as shown in the arrowdirection after removing 10 screws.4. Inner Panel Assy(1)Round Knob 3 個 Square Knob 1 個引抜、4個 Nut 取。(2)各 PWB 固定 14 本。5.Amp Connect Unit/Component Video Unit(1) 8 本、Pre-out Unit Component VideoUnit 。(2) 1 本、Amp Connect Unit 矢印方向取。6. Regulator Unit 10 本、Regulator Unit 矢印方向取。Round KnobNutSquare KnobRound KnobNutAmp Connect UnitComponent Video UnitPre-out UnitRegulator Unit55AVR-2803/983/AVC-28707. Component-Video/S-Video / C-video /Audio in / Ext-in VR / Digital/Remote I/O/ AM FM Tuner Unit(1) Remove 57 screws to detach the Rear Panel.(2) Take off the objective P.W.B. upward.8. How to Check Power / Control Unit withPower-on(1) Remove 18 screws fixing to the Chassis.(2) Pull up the Unit to separate from the Chassis.7.Component-Video/S-Video / C-video /Audio in / Ext-in VR / Digital/Remote I/O(1) 55 本、Rear Panel 取。(2)目的 P.W.B. 上方向取。8.Powr/Control Unit 通電時方法(1)本体 Chassis 取付 18 本。(2)本体上方向 Chassis 分離。Rear PanelChassis66AVR-2803/983/AVC-2870CAUTION IN SERVICING Initializing AV SURROUND RECEIVERInitializing AV SURROUND RECEIVERAV SURROUND RECEIVER initialization should be performed when the mcom, peripheral parts of mcom, and DSP P.W.B. are replaced.1.Switch off the unit and remove the AC cord from thewall outlet.2.Hold the following FRONT SPEAKER button and ZONE2 button, and plug the AC cord into the outlet.3.Check that the entire display is flashing with aninterval of about 1 second, and release your fingersfrom the 2 buttons and the microprocessor will be initialized.Note: Note: If step 3 does not work, start over from step 1. Alluser settings will be lost and this factorysetting will be recovered when this initialization mode. So make sure to memorize your setting for restoring after the initialization.時注意事項 AV 初期化 AV 初期化周辺部品、DSP 基板等交換場合、AV 初期化行下。1.電源押状態、壁電源電源抜。2.FRONT SPEAKER PURE DIRECT 同時押、電源差込。3. 表示約 1 秒間隔点滅確認後、2 指離。初期化。注意 :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。OUTPUTSIGNAL?DETECT SURROUND?BACK CHON / STANDBYREMOTE?SENSOR AUTOPCMDTSSIGNALDIGITALINPUTVOLUME LEVEL1277AVR-2803/983/AVC-2870ADJUSTMENTAudio SectionIdling Current (1U-3469-1)Audio SectionIdling Current (1U-3469-1)Required measurement equipment: DC Voltmeter1.Preparation(1)Avoid direct blow from an air conditioner or an electricfan, and adjust the unit at normal room tempereture 15 30 (59F 86 F).(2)Presetting POWER (Power sourse switch) OFF SPEAKER (Speaker terminal) No load(Do not connect speaker, dummy resistor, etc.)2.Adjustment(1)Remove top cover and set VR101, VR102, VR201, VR301, VR302, VR401, VR402, on 1U-3469-1 (PowerUnit) 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, SURROUND-Rch: TP101 pin, SURROUND BACK-Lch: TP301 pin, SURROUNDBACK-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 adjust the TEST POINT voltage to 6.5 mV 0.5 mV DC.(6)After 10 minutes from preset, turn VR101 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 VR101 to set the voltage to 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-3469-1)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,FRON-TRch: TP101 pin, CENTER ch: TP301 pin, SURROUND-Lch: TP101 pin, 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 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。88AVR-2803/983/AVC-2870DC VoltmeterFL chC chSBR chSBL ch VR402VR401SBR chSBL chVR102FR chVR101FL chVR201SR chSL chFR chC chVR301SL chVR302SR chTP301TP101Audio Section99AVR-2803/983/AVC-2870BLOCK DIAGRAMS (1/2)1010AVR-2803/983/AVC-2870BLOCK DIAGRAMS (2/2)1111AVR-2803/983/AVC-2870Correctives in VOL circuitOtherLEVEL DIAGRAMS (1/4)1212AVR-2803/983/AVC-2870Correctives against otherchannels in VOL circuitD/A OUT : +5dB EXT IN : Correctives LEVEL DIAGRAMS (2/4)1313AVR-2803/983/AVC-2870COMPOSIT INLEVEL DIAGRAMS (3/4)1414AVR-2803/983/AVC-2870LEVEL DIAGRAMS (4/4)1515AVR-2803/983/AVC-2870Wave formCH1: D-DATA(IC513 (5) )1CH1: DATACH2: fsCH3: 64fsCH4: 256fs3CH1: DATACH2: fsCH3: 64fs2 INPUTCOAXIAL-1COAXIAL-2OPTICAL-1OPTICAL-2OPTICAL-3OPTICAL-4OPTICAL-4INPUTIC513IC520DIRSN74HCLC89057WRDATA(21)SLRCK(23)SBCK(22)(4)RX2RMCK(16)RBCK(17)RLRCK(20)ADIN(24)12.288MHz(29)XIN151APW244APW(64)SDOA(38)SFS2(39)SFS3(07)SCLK2(54)SCLK3(50)SCLK0(21)SCLK1(20)SFS0(52)SFS1SD2A(37)SD2B(22)SD3A(23)SD3B(08)CODECSelectorADSST-MEL100IC522BUFFERDSPDATAfsfs64fs64fs256fsIC801DSDATA1(41)DSDATA2(42)DSDATA3(43)DSDATA4(44)(38)DBCLK(37)DLRCK(46)ALRCK(45)ABCLK(49)ASDATA(47)MCLKAD1835S MODE2IIC50974LVX157MTC(02)(03)(05)(06)(11)(10)(14)(13)(04)(07)(09)(12)IC804GNDSN74LV(2)- -(18)(13)- -(7)(11)- -(9)(15)- -(5)(17)- -(3)(4)- -(16)(6)- -(14)(8)- -(12)(3)(2)(12) (5)(13)(14)(15)SELECTOROUTPUTOUTPUTIC514IC521FCX0SN74HC151APW(3)(3)-03(1)(2)(12)(13) (5)(14)(15)SELECTOR12233CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK1616AVR-2803/983/AVC-2870CHECK WITH TEST MODEcom/DSP Error Display Modecom/DSP Error Display Mode1. Operation Speccom version display mode:com version display mode:When the following conditions are satisfied at its starting state, error information is displayed before version information.Starting method (same as com version display):Starting method (same as com version display):While pressing 2 buttons, DIMMER (S11) and SURROUND BACK (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 information Sub-com version information DSP version information3.DisplayAny one of the following list is displayed, in the priority of .方法DSP 表示DSP 表示1.動作仕様表示 :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 ):起動方法 ( 表示同様 ):DIMMER(S11), SURROUND BACK(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、 。Condition State DisplayCondition State Display Sub-com NGNo response from Sub-com DIR NGNo response from DIR DSP NG When DSP boot, executing DSP resetmakes no change to BUSY port L. No change to 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 special 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)条件状態表示内容条件状態表示内容 SUB NG SUB 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 DSP 前、BUSY L SUB/DSP 共 OK （表示表示行）1717AVR-2803/983/AVC-2870SEMICONDUCTORSOnly major ICs are shown, general ICs etc. are omitted to list.主半導体記載。汎用半導体等記載省略。 ICsICsNote: 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. AD : Audio/Digital P.W.B.CV : Connect/Video P.W.B. DS : DSP P.W.B.CO: Control P.W.B. CD: Comp.D4 P.W.B.(For Japan)AC : Amp Connect P.W.B. MA: Main Sub AssyM30624MGA-189FP (CO: IC506)M30624MGA-189FP Terminal Function1303150100815180TOP VIEWPinNo.Pin NameFunctionI/O1P96/SOUT4PLRDS DATAOCZO/LO/LPLL & RDS control pin (LC72131 & LC72720)2P95/CLK4PLRDS CLKOCZO/LO/LPLL & RDS control pin (LC72131 & LC72720)3P94/TB4PLL STBOCZO/LO/LPLL control pin (LC72131)4P93/TB3OSD RSTOCZO/LO/LOSD control pin (M35015)5P92/SOUT3OSD DATAOCZO/LO/LOSD control pin (M35015)6P91/SIN3OSD STBOCZO/LO/LOSD control pin (M35015)7P90/CLK3OSD CLKOCZO/LO/LOSD control pin (M35015)8BYTEBYTEGND (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 BI Lv EuZO/LO/LInput selector rotation detect input(Rotary encoder)11P86ISEL AI Lv EuZO/LO/LInput selector rotation detect input(Rotary encoder)12RESET_RESETI Lv EuLIIReset 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/INT0REMOCONIE&LZIIRemote control signal input21P81VSEL AILvEuZIO/LMaster VR rotation detect input (Rotary encoder)SymbolType DetOp(Int.)Op(Ext.)ResSTBY Stop1818AVR-2803/983/AVC-287022P80VSEL BILvEuZIO/LMaster VR rotation detect input (Rotary encoder)23P77FUNC STB1OCZO/LO/LSTB output for function switching control(L-ch INPUT&REC/M-ZONE side, EXT IN)24P76FUNC CLKOCZO/LO/LCLK output for function switching control25P75FUNC DATAOCZO/LO/LDATA output for function switching control26P74FUNC STB2OCZO/LO/LSTB output for function switching control(R-ch INPUT&REC/M-ZONE)27P73/CTS2FL DATAOCZO/LO/LFL tube control pin (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/CLK1RESET2OCEdZO/LO/LSUB- com reset output34P64/CTS1ACKOCEdZO/LO/LMAIN-SUB com comm. control pin35P63/TXD0MOSIOCEdZO/LO/LMAIN-SUB com comm. control pin36P62/RXD0MISOILvEdEdZIIMAIN-SUB com comm. control pin37P61/CLK0Not Used (CLK)OCZO/LO/LNot used38P60/CTS0E.VOL STBOCZO/LO/LE-VR control output (TC94A32F)39P57E.VOL CLKOCZO/LO/LE-VR control output (TC94A32F, TC9459)40P56E.VOL DATAOCZO/LO/LO/LO/LE-VR control output (TC94A32F, TC9459)41P55/EPMFRASH EPMILvZIIRewrite boot program start: L input set42P54Not UsedNot UsedCZO/LOPENOPEN43P53CZO/L44P52FL RSTOOOCZO/LO/LFL tube control pin (LC75721E)45P51FL CEOCZO/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)48P46V.EXP DATAOCZO/LO/LDATA output for video switching expander control(BU4094B)49P45V.EXP OEOCEdEdEdEdZO/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 BACK SP53P41FA-RELAYOCZO/LO/LRelay control for FRONT A SP54P40FB-RELAYOCZO/LO/LRelay control for FRONT B SP55P37C-RELAYOCZO/LO/LRelay control for CENTER SP56P36S-RELAYOC ZO/LO/LRelay control for SURROUND SP57P35PRE F MUTEOCZO/LO/LFRONT PREOUT output muting control, L: Muting58P34PRE C MUTEOCZO/LO/LCENTER 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 MUTEOZO/LO/LSUB WOOFER PREOUT output muting control,L: Muting62VCCVCC+5V63P30MULTI MUTEOCCZO/LO/LPin-jack output muting control of MULTI, L: Muting64VSSVSSGND65P27VOL MUTEOCZO/LO/LPOWER AMP input muting control, L: Muting66P26S.BACK VOL MUTEOZO/LO/LSURROUND BACK POWER AMP input mutingcontrol, L: Muting67P25TUNER MUTEOCCZO/LO/LTUNER muting controlPinNo.Pin NameFunctionI/OSymbolTypeDetOp(Int.)Op(Ext.)ResSTBYStop1919AVR-2803/983/AVC-287068P24LED CLKOCZO/LO/LLED control pin (BU2090F)69P23LED DATAOCZO/LO/LLED control pin (BU2090F)70P22S MONI. DETILvEuZIO/LS-monitor connection detect input (L: Connected)71P21S SIG. DETILvEuZIO/LS-signal detect input (H: S-signal inputted)72P20SYNC. DETILvEuZIISync. detect input (H: Ext. synchronized)73P17/INT5RDS DATAOUTIE &LIO/LRDS data input (LC72720)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/D11RECINHAOCZO/LO/LWhen RECOUT select is VCR1 or VIDEO otherthan VCR system: H78P12/D10SSEL BILvEuZO/LO/LSelect encoder rotation detect input (Rotaryencoder)79P11/D9SSEL AILvEuEuEuZO/LO/LSelect encoder rotation detect input (Rotaryencoder)80P10/D8A+B LIMITOOOCCCZO/LO/LSRROUND AMP current limiter control, whenSURROUND SP A+B: H81P07/D7VIN2ZO/LO/L82P06/D6VIN1ZO/LO/LCOMPONENT VIDEO output switchingCOMPONENT VIDEO output switching83P05/D