Denon-AVR3803-avr-sm维修电路原理图.pdf

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1、SERVICE MANUALMODELAVR-3803/1083AVC-3570AV SURROUND RECEIVER/AMPLIFIERFor U.S.A., Canada, Europe, Asia,China, Hong Kong, Taiwan R.O.C.,Korea & Japan model16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPANTelephone: 03 (3837) 5321X0155 NC 0211OUTPUTSIGNALDETECT SURROUNDBACK CHON / STANDBYREMOTE

2、SENSOR AUTOPCMDTSSIGNALDIGITALINPUTVOLUME LEVELAVR-3803AVC-35708? Some illustrations using in this service manual areslightly different from the actual set.,RadioFans.CN 收音机爱 好者资料库AVR-3803/1083/AVC-35702SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the cus

3、tomer 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

4、 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AVR-3803/1083/AVC-35703WIRE ARRANGEMENTIf wire bundles are untied or moved to perform adjustment orparts replacement etc.,be sure to rearrange them neatly asthey were originally bundled or placed afterward.Ot

5、herwise, incorrect arrangement can be a cause of noisegeneration.Wire arrangement viewed from the top4AVR-3803/1083/AVC-3570DISASSEMBLY(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 t

6、he arrowdirection.2. Front Panel(1) Remove 7 screws from the top and bottom edges ofthe Front Panel.(2) Release 4 top and bottom Hooks, then detach theFront Panel as shown in the arrow direction.Top Cover3. Inner PanelPull out the Inner Panel in the arrow direction afterremoving 3 screws.HookHookHoo

7、kFront Panel1. Top Cover36Top Cover2. Front Panel(1) Front Panel7(2) Front Panel4HookFront Panel3. Inner Panel3Inner PanelInner PanelHook5AVR-3803/1083/AVC-35704. Inner Panel Assy(1) Remove 3 round and 1 square knobs, and unscrew 4nuts.(2)Remove 14 screws fixing each P.W.B.Round KnobNutSquare KnobRo

8、und KnobNut5. 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 11

9、screws.4. Inner Panel Assy(1) Round Knob 3Square Knob 14Nut(2)PWB145. Amp Connect Unit/Component Video Unit(1)12Pre-out UnitComponent VideoUnit(2)1Amp Connect Unit6. Regulator Unit11Regulator UnitAmp Connect UnitComponent Video UnitPre-out UnitRegulator Unit6AVR-3803/1083/AVC-35707. Component-Video/

10、S-Video / C-video /Audio in / Ext-in VR / Digital/Remote I/O/ AM FM Tuner Unit(1) Remove 60 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 17 screws fixing to the Chassis.(2) Pull up the Unit to separate from the C

11、hassis.7. Component-Video/S-Video / C-video /Audio in / Ext-in VR / Digital/Remote I/O(1)61Rear Panel(2)P.W.B.8. Powr/Control Unit(1)Chassis17(2)ChassisRear PanelChassis7AVR-3803/1083/AVC-3570CAUTION IN SERVICING? ? ? ? ? Initializing AV SURROUND RECEIVERAV SURROUND RECEIVER initialization should be

12、performed when the com, peripheral parts of com, andDSP P.W.B. are replaced.1. Switch off the unit and remove the AC cord from thewall outlet.2. Hold the following PURE DIRECT button and ZONE2 button, and plug the AC cord into the outlet.3. Check that the entire display is flashing with aninterval o

13、f about 1 second, and release your fingersfrom the 2 buttons and the microprocessor will beinitialized.? ? ? ? ? AVDSPAV1.2. PURE DIRECTVIDEO OFF3.12OUTPUTSIGNALDETECT SURROUNDBACK CHON / STANDBYREMOTESENSOR AUTOPCMDTSSIGNALDIGITALINPUTVOLUME LEVEL12Note: ? If step 3 does not work, start over from s

14、tep 1.? All user settings will be lost and this factorysetting will be recovered when this initializationmode.So make sure to memorize your setting forrestoring after the initialization.: ?31?8AVR-3803/1083/AVC-3570ADJUSTMENTAudio SectionIdling Current (1U-3469-1)Required measurement equipment: DC V

15、oltmeterPreparation(1) Avoid direct blow from an air conditioner or an electricfan, and adjust the unit at normal room tempereture 15C 30 C (59 F 86 F).(2) Presetting?POWER (Power sourse switch)OFF?SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)Adjustment(1) Remove to

16、p 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 1 2 pin, FRONT-Rch: TP101 5 6 pin,CENTER ch: TP301 3 4 pin, SURROUND-Lch: TP1013 4 pin, SURROUND-Rch: TP101 1 2 pin,SURROUND

17、 BACK-Lch: TP301 7 8 pin, SURROUNDBACK-Rch: TP301 5 6 pin).(3) Connect power cord to AC Line, and turn power switchON.(4) Presetting.MASTER VOLUME : - counterclockwise ( min.)MODE: 7CH STEREOFUNCTION: CD(5) Allow 2 minutes, and turn VR101 clockwise ( ) toadjust the TEST POINT voltage to 6.5 mV 0.5 m

18、V DC.(6) After 10 minutes from preset, turn VR101 to set thevoltage to 8 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other channels in thesame way.(8) After 5 minutes from (6), turn VR101 to set the voltage to8 mV 0.5 mV DC.(9) Adjust the Variable Resistors of other channels in thesame way. (1

19、U-3469-1):DC Voltmeter(1)1530(2)?OFF?()(1)1U-3469-1VR101, VR102, VR201, VR301, VR302, VR401, VR402 () (2) (FRONT-Lch: TP301 1 2 pin, FRONT-Rch: TP101 5 6 pin, CENTER ch: TP301 3 4 pin,SURROUND-Lch: TP101 3 4 pin, SURROUND-Rch:TP101 1 2 pin, SURROUND BACK-Lch: TP301 7 8pin, SURROUND BACK-Rch: TP301 5

20、 6 pin) DCVoltmeter(3)AC100V95105VON(4) ON? MASTER VOLUME() ? SPEAKERMODE : 7CH STEREOFUNCTION : CD(5) 2VR101 () 6.5mV 0.5mV DC(6)10VR1018mV 0.5mV DC(7)(8) (6)5VR1018mV 0.5mV DC(9)9AVR-3803/1083/AVC-3570DC VoltmeterFL chC chSBR chSBL ch VR402VR401SBR chSBL chVR102FR chVR101FL chVR201SR chSL chFR chC

21、 chVR301SL chVR302SR chTP301TP101Audio Section10AVR-3803/1083/AVC-3570Video SectionComponent Video Level AdjustmentRequired measurement equipment etc: Oscilloscope, DVDVIDEO PLAYER (ex: DVD-1500)Test Disc: DVD T-S01Preparation(1) Avoid direct blow from an air conditioner or an electricfan, and adjus

22、t the unit at normal room temperature 15C 30 C (59 F 86 F).(2) Playback the color-bar 75% of the Test Disc (Title 12)using the DVD Video Player, and check that Y and Clevels of the S terminal output are within the specifiedoutput levels.If they are out of the specified levels, adjust with thevariabl

23、e resister inside of the unit.(3) Presetting?POWER (Power source switch)OFF?SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)?DVD (Video terminal)No inputAdjustment(1) Remove top cover and set VR101, VR102, VR103 on1U-3475-1 (Convert Unit) at fully counterclockwise ( ).

24、(2) Connect a pin-plug terminated with 75-ohms to Y(Cb,Cr) of the Component Video Monitor Output, and hookup the Oscilloscopes probe to both ends of the pin-plug.(3) Connect S terminal output of the DVD Player with theDVD input terminal of the Receiver.(4) Connect power cord to AC Line, and turn pow

25、er switchON.(5) Presetting?FUNCTION:DVD?Playback the color-bar 75% of the Test Disc (Title 12)(6) Turn VR101 clockwise ( ) to adjust theCOMPONENT VideoY voltage (except H.Sync) to 71450 mVp-p. (Refer to Fig.1)(7) Adjust the Variable Resistors of Cb: VR102 and Cr:VR103 in the same way. (Refer to Fig.

26、 2, 3)Cb,Cr: 48650 mVp-p. (U.S.A. & Canada model)52550 mVp-p. (Others):Oscilloscope, DVD VIDEO PLAYER(: DVD-1500):DVD T-S01(1)1530(2) DVD VIDEO PLAYER75(Title12)SYC(3)?OFF?()?DVD(1)1U-3475-1VR101, VR102, VR103 () (2)Y(Cb, Cr)75Oscilloscope(3) DVD VIDEO PLAYERSDVD(4)ON(5) ON?FUNCTIONDVD?75(Title12)(6

27、) VR101 () Y(H.Sync)(Fig.1)714mV 50mVp-p(7)Cb: VR102 Cr: VR103(Fig.23)Cb,Cr: 52550 mVp-p.11AVR-3803/1083/AVC-3570VR102VR101VR103CrCbOscilloscopeComponent Video YVideo Section12AVR-3803/1083/AVC-357071450mVp-pVoltsIRE:FLTY-Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV (U.S.A. & Can

28、ada 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) 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 signalBLOCK DIAGRAMS (1/2)87654321ABCDEAVR-3803/AVR

29、-1083/AVC-357013BLOCK DIAGRAMS (2/2)87654321ABCDEAVR-3803/AVR-1083/AVC-357014LEVEL DIAGRAMS (1/5)87654321ABCDEAVR-3803/AVR-1083/AVC-357015AUDIO SECTION (1/2)LEVEL DIAGRAMS (2/5)87654321ABCDEAVR-3803/AVR-1083/AVC-357016AUDIO SECTION (2/2)LEVEL DIAGRAMS (3/5)87654321ABCDEAVR-3803/AVR-1083/AVC-357017VI

30、DEO SECTION (1/3)LEVEL DIAGRAMS (4/5)87654321ABCDEAVR-3803/AVR-1083/AVC-357018VIDEO SECTION (2/3)LEVEL DIAGRAMS (5/5)87654321ABCDEAVR-3803/AVR-1083/AVC-357019VIDEO SECTION (3/3)20AVR-3803/1083/AVC-3570CLOCK FLOW & WAVE FORM IN DIGITAL BLOCKWave formCH1: D-DATA(IC510 (5) )1CH1: DATACH2: fsCH3: 64fsCH

31、4: 256fs3CH1: DATACH2: fsCH3: 64fs2?INPUTINPUTINPUTINPUTSELECTORSELECTORSELECTORSELECTORBUFFERBUFFERBUFFERBUFFERIC5?3IC5?3IC5?3IC5?3IC522IC522IC522IC522INPUTINPUTINPUTINPUTSN74HC SN74HC SN74HC SN74HC SN74LVSN74LVSN74LVSN74LV?5?APW?5?APW?5?APW?5?APW244APW244APW244APW244APWCOAXIAL-?COAXIAL-?COAXIAL-?C

32、OAXIAL-?(3)RDATA(2?)(?)- -(9)(64)SD0ACOAXIAL-2COAXIAL-2COAXIAL-2COAXIAL-2(2)SLRCK(23)(?3)- -(7)(38)SFS2(?)fsOPTICAL-?OPTICAL-?OPTICAL-?OPTICAL-?(?2) (5)(4)RX2(39)SFS3(2)64fsSLchOPTICAL-2OPTICAL-2OPTICAL-2OPTICAL-2(?3)SBCK(22)(?5)- -(5) (7)SCLK2(3)DATAFLchOPTICAL-3OPTICAL-3OPTICAL-3OPTICAL-3(?4)(?7)-

33、 -(3)(54)SCLK3(5)256fsOPTICAL-4OPTICAL-4OPTICAL-4OPTICAL-4(?5)RMCK(?6)(4)- -(?6)OPTICAL-5OPTICAL-5OPTICAL-5OPTICAL-5(?)(2)- -(?8)(50)SCLK0RBCK(?7)(6)- -(?4)(2?)SCLK?RLRCK(20)(8)- -(?2)(20)SFS0OUTPUTOUTPUTOUTPUTOUTPUT(52)SFS?(?)fsSELECTORSELECTORSELECTORSELECTORADIN(24)SD2A(37)(2)64fsFRch(29)XINSD2B(

34、22)(3)DATASRchIC5?4IC5?4IC5?4IC5?4SD3A(23)(5)256fsSN74HC SN74HC SN74HC SN74HC ?SD3B (8)?5?APW?5?APW?5?APW?5?APW(3)(?5)DATA(2)24.576MHz24.576MHz24.576MHz24.576MHz(?6)BCK(?2)IC52?IC52?IC52?IC52?(?7)LRCK(?)fs(?3) (5)FXC0FXC0FXC0FXC0SYSCK(?8)(2)64fsSBLch(?4)-03-03-03-03(3)DATACch(?5)(3)(5)256fs(?)OUTPUT

35、OUTPUTOUTPUTOUTPUTOPTICAL-4OPTICAL-4OPTICAL-4OPTICAL-4OPTICAL-5OPTICAL-5OPTICAL-5OPTICAL-5(?)fs(2)64fsSWch(3)DATASBRch(5)256fsIC520IC520IC520IC520LC89057WLC89057WLC89057WLC89057WDIRDIRDIRDIRDSPDSPDSPDSPIC80?IC80?IC80?IC80?ADSST-MEL?00ADSST-MEL?00ADSST-MEL?00ADSST-MEL?00D/A CONVERTERD/A CONVERTERD/A

36、CONVERTERD/A CONVERTERIC523IC523IC523IC523A/D CONVERTERA/D CONVERTERA/D CONVERTERA/D CONVERTERIC526IC526IC526IC526PCM?79?PCM?79?PCM?79?PCM?79?IC5?9IC5?9IC5?9IC5?9IC524IC524IC524IC524PCM?79?PCM?79?PCM?79?PCM?79?PCM?79?PCM?79?PCM?79?PCM?79?IC525IC525IC525IC525PCM?79?PCM?79?PCM?79?PCM?79?PCM?804PCM?804

37、PCM?804PCM?804256fs64fsfsfs64fsDATA21AVR-3803/1083/AVC-3570CHECK WITH TEST MODEDSP1.:():DIMMER(S11), SURROUND BACK(S14)2ACSTATUSFL Display2.DSP 3.12341 SUBNGSUB2 DIRNGDIR3 DSPNGDSPDSPBUSYLDSPBUSYLDSPWRITE=LACK=HDSPREQ=LACK=LDSPWRITE=HACK=HDSPREQ=LACK=LDSPDSPBUSYLDSPBUSYLDSPBUSYL4 SUB/DSPOK com/DSP E

38、rror Display Mode1. Operation Spec 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):While pressing 2 buttons, DIMMER (S11) and SURROUND BACK (S14), plug

39、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 1

40、234.ConditionStateDisplay1 Sub-com NGNo response from Sub-com2 DIR NGNo response from DIR3 DSP NGWhen 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, exec

41、uting 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=L makes 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 comma

42、nd.No change to BUSY port L before DSP version read.4 Both SUB/DSP OK(No error display, version display only)22AVR-3803/1083/AVC-3570SEMICONDUCTORSOnly major ICs are shown, general ICs etc. are omitted to list.? ? ? ? ? ICsNote: Abbreviation ahead of IC No. indicates the name of P.W.B., etc.):IC No.

43、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.VI : Video P.W.B.AC: Amp Connect P.W.B.MA: Main Sub AssyM30624MGA Terminal FunctionPinNo.Pin NameFunctionI/O1303150100815180TOP VIEWM30624MGA (CO: IC506)1P96/SOUT4 PLRDS DATAOCZO/LO/LPLL & RDS control pin

44、 (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/SOUT3 OSD DATAOCZO/LO/LOSD control pin (M35015)6P91/SIN3OSD STBOCZO/LO/LOSD control pin (M35015)7P90/CLK3OSD C

45、LKOCZO/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 BILvEuZO/LO/LInput selector rotation detect input(Rotary encoder)11P86ISEL AILvEu

46、ZO/LO/LInput selector rotation detect input(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&LEdZIIProt

47、ection detect input (Detected: L)20P82/INT0REMOCONIE&LZIIRemote control signal input21P81VSEL AILvEuZIO/LMaster VR rotation detect input (Rotary encoder)SymbolType DetOp(Int.)Op(Ext.)Res STBY Stop23AVR-3803/1083/AVC-357022P80VSEL BILvEuZIO/LMaster VR rotation detect input (Rotary encoder)23P77FUNC S

48、TB1OCZO/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 DATAOC-ZO/LO/LDATA output for function switching control26P74FUNC STB2OCZO/LO/LSTB output for function switching control(R-ch INPUT&REC/M-

49、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/RXD1R

50、xDILvZIIData 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/RXD0MISOILvEdZIIMAIN-SUB com comm. control pin37P61/CLK0Not Used (CLK)OCZO/LO/LNot used38P60/CTS0E.VO