Denon-AVR786-avr-sm维修电路原理图.pdf

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1、SERVICE MANUALMODELAVR-1906/786AV SURROUND RECEIVERAVC-1620AV SURROUND AMPLIFIERFor U.S.A., Canada, Europe,Asia, Taiwan R.O.C., Korea& Japan modelTOKYO ,JAPANX0239 V.01 DE/CDM 0506Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual

2、 with referring 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Denon Brand Compan

3、y, D&M Holdings Inc.Ver. 1RadioFans.CN 收音机爱 好者资料库2AVR-1906 / AVR-786 / AVC-1620SAFETY 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

4、 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3AVR-1906 / AVR-786 / AVC-1620DIMENS

5、ION4AVR-1906 / AVR-786 / AVC-1620CAUTION IN SERVICINGInitializing 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 SPEAKERS-A button and SPEAKERS-B button, a

6、nd 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 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

7、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 初期化周辺部品、Digital 基板等交換場合、AV 初期化行下。1. OFF 。2.SPEAKERS-A SPEAKERS-B 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-1906 /

8、AVR-786 / AVC-1620ADJUSTMENTAudio SectionIdling CurrentRequired measurement 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 SPEAKE

9、R (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)2. Adjustment(1) Remove top cover and set VR101, VR102, VR103, VR104, VR105, on Amp. Unit, VR107SBL,VR107SBR on SURR.-BACK ch Amp. Unit at fully counterclockwise ( ) position. (2) Connect DC Voltmeter to test points (FRONT-Lch:

10、 TP104, FRONT-Rch: TP105, CENTER ch: TP103, SUR-ROUND-Lch: TP101, SURROUND-Rch: TP102, SUR-ROUND-BACK Lch: TP106,SURROUND-BACK Rch: TP107).(3) Connect power cord to AC Line, and turn power switch ON.(4) Presetting.MASTER VOLUME: - counterclockwise ( min.)MODE: 7CH STEREOFUNCTION: CD(5) Within 2 minu

11、tes after the power on, turn VR101 clock-wise ( ) to adjust the TEST POINT voltage to 1.5 mV 0.5 mV DC.(6) After 10 minutes from the preset above, turn VR101 to set the voltage to 2.5 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other channels in the same way. VR104TP104VR101,TP101TP106VR107SBL

12、TP107VR107SBRVR103,TP103VR102TP102VR105TP105F LchS LchS Back LchS Back RchC chS RchF RchDC Voltmeter調整電流調整調整必要測定器 :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、基板 VR101, VR102, VR103, VR104, VR105及 SURR.-BACK 基板VR107SBL,VR107SBR 反時計方向 ( ) 回切状態。(2) (FRONT

13、-Lch: TP104, FRONT- Rch: TP105, CENTER ch: TP103, SURROUND-Lch: TP101, SURROUND-Rch: TP102, SURROUND-BACK Lch: TP106,SURROUND-BACK Rch: TP107) 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

14、 分以内 VR101 時計方向 ( ) 回電圧次調整。1.5mV 0.5mV DC(6) 予備調整 10 分後 VR101 回、次電圧設定。2.5mV 0.5mV DC(7) 同方法各可変抵抗調整。6AVR-1906 / AVR-786 / AVC-1620Video SectionComponent Video Level AdjustmentRequired measurement equipment etc.: Oscilloscope, DVDVIDEO PLAYER (ex: DVD-1500)Test disc: DVD T-S011. Preparation(1) Avoid d

15、irect 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 color-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 l

16、evels.If they are out of the specified levels, adjust with the vari-able 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 input2. Adjustment(1) Remove top cover and set VR9

17、01, VR902, VR903, on C-S VIDEO2 Unit at fully counterclockwise ().(2) Connect a pin-plug terminated with 75-ohms to Y (Cb, Cr) of the 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 te

18、rminal of the Receiver.(4) Connect power cord to AC Line, and turn power switch ON.(5) Presetting. FUNCTION:DVD Playback the color-bar 75% of the Test Disc (Title 12)(6) Turn VR902 clockwise ( ) to adjust the COMPONENT Video Y voltage (except H. Sync) to 714 50 mVp-p. (Re-fer to Fig. 1)(7) Adjust th

19、e Variable Resistors of Cr: VR901 and Cb: VR903 in the same way. (Refer to Fig. 2, 3)Cb,Cr: 486 50 mVp-p. (U.S.A. & Canada model)525 50 mVp-p. (Others)AVC-1620( 日本向）調整有。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 PLAY

20、ER 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、C-S VIDEO2 VR901, VR902, VR903 反時計方向 ( ) 回切状態。(2) 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) VR90

21、2 時計方向 ( ) 回Y (H. Sync 除 ) 電圧調整。(Fig. 1 参照 )714mV 50mVp-p(7) 同方法 Cr: VR901、 Cb: VR903 可変抵抗器調整。(fig. 2、3 参照 )Cb, Cr: 486 50mVp-p(U.S.A.,Canada ） 525 50mVp-p( 他仕向地）7AVR-1906 / AVR-786 / AVC-1620OscilloscopeMONITOR OUT(Y,Cb,Cr)Video SectionVR902VR901VR903CbCrY8AVR-1906 / AVR-786 / AVC-162071450mVp-pVol

22、tsIRE:FLTY-Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV(U.S.A. & Canada model)p-p52550mV(Other model)p-pVoltsIRE:FLT0.020.040.0-0.5-50.050.00.00.50.060.080.048650mV(U.S.A. & Canada model)p-pVoltsIRE:FLT0.020.040.0-0.5-50.050.00.00.50.060.080.0Fig.1 Component Video Y signalFig.2 C

23、b signalFig.3 Cr signal50.052550mV(Other model)p-p9AVR-1906 / AVR-786 / AVC-1620BLOCK DIAGRAM10AVR-1906 / AVR-786 / AVC-1620LEVEL DIAGRAMS (1/2)11AVR-1906 / AVR-786 / AVC-1620LEVEL DIAGRAMS (2/2)12AVR-1906 / AVR-786 / AVC-1620SEMICONDUCTORSOnly major semiconductors are shown, general semiconductors

24、etc. are omitted to list.主半導体記載。汎用半導体記載省略。 1. ICsM30622MEP (IC201)M30622MEP Terminal FunctionPIN No.PIN NAMEI/OFUNCTION1SW_SUMOSW SUMMING CONTROL24094CLKOBU4094(IC5513) CLOCK3BU2090_CLK(VIDEO)OBU2090(IC604,608) CLOCK4BU2090/LC74781_DATA1OBU2090(IC608) DATA/LC74781(IC603) SDATA IN5BU2090/LC74781_DATA

25、2(CLK)OBU2090(IC604) DATA/LC74781(IC603) SCLK6REMOCONIREMOCON SIGNAL DATA INPUT7AD1837_SDIN(OVERLOAD)IAD1837(IC808) COUT SERIAL DATA INPUT8BYTEGNDGND9CNVSS-UP GRADE PIN (TP201 CNVSS)10BU2090/4094_DATAOBU4094(IC5513) DATA /BU2090iIC303) DATA11LC75721_RESETOLC75721(IC301) RESET CONTROL12RESETIu-COM RE

26、SET SIGNAL INPUT13X-OUTOOSILATOR CONNECTION14VssGNDGND15X-INIOSILATOR CONNECTION16Vcc1(+5V)5VPOWER 5V17NCIPULL DOWN18FLAG0IEPROM chip select control for DSP19LC89057_INTILC89057(IC807) INT SIGNAL INPUT20PROTECTIONIPROTECTION SIGNAL INPUT21LC75721/BU2090_CLKOBU2090(IC303) CLOCK/ LC75721(IC301) CLOCK2

27、2LC75721_DATAOLC75721(IC301) DATA23LC75721_CEOLC75721(IC301) CHIP ENABLEPH7PH6PH5PH4PH3PH2PH1PH0PK7/TO1RSTVSSXTALEXTALPK6/CS0PK5/SI0PK4/SO0PK3/SCK0PF7/AN11PF6/AN10PF5/AN9PC6PC7PA0PA1PA2PA3PA4PA5PA6PA7NCVDDVSSPK1/TXPK2/TEXPI1/RMCPI2/NMIPI3/TO0/ADJPI4/INT1/CS1PI5/SCK1PC5PC4PC3PC2PC1PC0PB7/SI2PB6/SO2PB

28、5/SCK2PB4/TO2PB3PB2PB1PB0PJ7PJ6PJ5PJ4PJ3PJ2PJ1PJ0PD7PD6PD5PD4PD3PD2PD1PD0PI6/SO1PI7/SI1PE0/INT0PE1/INT2PE2/PWM0PE3/PWM1PE4PE5PE6PE7PG0/TxDPG1/RxDPG2/EC0PG3/EC1PG4/EC2PG5/INT3PG6/INT4PG7/CINTAN0AN1AN2AN3PF0/AN4PF1/AN5PF2/AN6PF3/AN7AVDDAVREFAVSSPF4/AN812345678910111213141516171819203132333435363738394

29、0414243444546474849501009998979695949392919089888786858483828121222324252627282930807978777675747372717069686766656463626160595857565554535251TOP VIEW13AVR-1906 / AVR-786 / AVC-162024TC9273_STBOTC9273-004(IC703) STB25TC9273_DATAOTC9273-004(IC703) DATA26TC9273_CLKOTC9273-004(IC703) CLOCK 27NCI/OOPEN2

30、8MIC_RELAYOMIC RELAY (RLY701) CONTROL29TC90A69/TA1270_CLKOTC90A69(IC612) SCLOCK/TA1270BF(IC901) SCLOCK30TC90A69/TA1270_DATAI/OTC90A69(IC612) SDATA/TA1270BF(IC901) SDATA31RS232C_TXORS232C SIGNAL OUTPUT32RS232C_RXIRS232C SIGNAL INPUT33NCOGND34NCOGND35PLL_DATA_INITUNER DATA IN36PLL_DATA_OUTOTUNER DATA

31、OUT37PLL_CLKOTUNER PLL CLOCK38PLL_CEOTUNER PLL CHIP ENABEL39TUNEDITUNED SIGNAL INPUT40STEREOISTEREO SIGNAL INPUT41RS232C_UPGRADE(EPM)IUP GRADE PIN (TP201 EPM)42VOL_ENCORDER_UPIMASTER VOLUME ENCODER(VEC301) 43VOL_ENCORDER_DOWNIMASTER VOLUME ENCODER(VEC301) 44SELECT_UPISELECT ENCONDER(VEC302)45SELECT_

32、DOWNISELECT ENCONDER(VEC302)46RS232C-UPGRADE(CE)IUP GRADE PIN (TP201 CEj47POWER_DOWNIPOWER DOWN CONTROL INPUT48RDS_DATAITDA7330BDiIC202j RDDR SIGNAL INPUT49ERR_MUTEOERROR MUTE 50BSEODIGITAL SIGNAL MUTE51LC89057_EMPHAILC89057(IC807) PRE EMPHASIS INFOMATION SIGNAL INPUT52SHARC_SDINISHARC(IC804) SERIAL

33、 DATA INPUT53LC89057_SDINILC89057(IC807) D0 SIGNAL INPUT54EPPROM_RESETOFLASH ROM(IC805) RESET55LC89057_RESETOLC89057(IC807) RESET56SHARC_CEOSHARC(IC804) CHIP ENABEL57SHARC_SDOUTOCHARC(IC804) SERIAL DATA OUT58LC89057_CEOLC89057(IC807) CHIP ENABLE59LC89057_AD1837_SDOUTOLC89057(IC807) D1 SIGNAL / AD183

34、7(IC808) CIN SIGNAL60LC89057_AD1837_SCLKOLC89057(IC807) CLOCK/ AD1837(IC808) CCLOCK 61AD1837_RESETOAD1837(IC808) RESET SIGNAL OUT (TO IC821)62Vcc2(+5V)5VPOWER 5V63SHARC_SCLKOSHARC(IC804) SPICLK64VssGNDGND65SHARC_RESETOSHARC(IC804) RESET SIGNAL66AD1837_CEOAD1837(IC808) CLATCH67FLAG3ISpecial flag for

35、ROM updata68FLAG2IDSP operation check flag69FLAG1INON USE70H/P_DETECTIHEAD PHONE DETECT71FUNCTION_UPIFUNCTION ENCODER (VEC303)72FUNCTION_DOWNIFUNCTION ENCODER (VEC303)73RDS_CLKOTDA7332BD(IC202) CLOCK FOR RDS74POWER_KEYIPOWER SWICH SIGNAL INPUT75MIC DETECTIMIC DETECTION76POWER_RELAYOFRONT PANEL POWER

36、 CONTROL77ST/BY_LED(RED)OSTBY LED RED CONTROL78VCR_MUTEOVCR OUT(REC OUT) OUTPUT CONTROL79BD3811K1_CLKOBD3811K1(IC701) CLOCK/BD3812F (IC702) CLOCKPIN No.PIN NAMEI/OFUNCTION14AVR-1906 / AVR-786 / AVC-162080BD3811K1_DATAOBD3811K1(IC701) DATA/BD3812F(IC702) DATA81MUTE_POWEROMUTE POWER CONTROL82BU4904_ST

37、B(RELAY)OBU4094(IC551) STB83BU4094_STB(RELAY&MUTE)OBU4094(IC553) STB84BU4094_STB(MUTE)OBU4094(IC552) STB85S-MON_DETIS-MONITOR DETECT 86COMP_DETICOMPONENT SIGNAL INPUT DETECT87C_DETICONPOSIT SIGNAL INPUT DETECT88S_DETIS VIDEO SIGNAL INPUT DETECT89NCOOPEN90KEY_IN1IKEY1 SIGNAL INPUT91KEY_IN2IKEY2 SIGNA

38、L INPUT92KEY_IN3IKEY3 SIGNAL INPUT93SET_OPTIONIMODEL OPTION SELECT94BAND_OPTIONIAREA OPTION SELECT9574HC151_AOTC74HC151A (IC827) CONTROL COAXIAL SIGNAL SELECT96AVssGNDGND97SEL_CLKOSEL_CLK98VREF(+5V)5VVREF99AVcc(+5V)5VPOWER 5V100LC74781_CEOLC74781(IC603) CSPIN No.PIN NAMEI/OFUNCTION15AVR-1906 / AVR-7

39、86 / AVC-1620ADSP-21266SKSTZ-1B (IC804)ADSP-21266SKSTZ-1B Terminal Function13 6377372108144109TOP VIEWPIN 1 INDICATORPin NameLQFP Pin #Pin NameLQFP Pin #Pin NameLQFP Pin #Pin NameLQFP Pin #VDDINT1VDDINT37VDDEXT73GND109CLKCFG02GND38GND74VDDINT110CLKCFG13RD39VDDINT75GND111BOOTCFG04ALE40GND76 VDDINT112

40、BOOTCFG15AD1541DAI_P10 (SD2B)77GND113GND6AD1442DAI_P11 (SD3A)78VDDINT114VDDEXT7AD1343DAI_P12 (SD3B)79GND115GND8GND44 DAI_P13 (SCLK23)80VDDEXT116VDDINT9VDDEXT45DAI_P14 (SFS23)81GND117GND10AD1246DAI_P15 (SD4A)82VDDINT118VDDINT11VDDINT47VDDINT83GND119GND12GND48GND84VDDINT120VDDINT13AD1149GND85RESET121G

41、ND14AD1050DAI_P16 (SD4B)86SPIDS122FLAG015AD951DAI_P17 (SD5A)87GND123FLAG116AD852DAI_P18 (SD5B)88VDDINT124AD717DAI_P1 (SD0A)53DAI_P19 (SCLK45)89SPICLK125GND18 VDDINT54VDDINT90MISO126VDDINT19GND55 GND91MOSI127GND20DAI_P2 (SD0B)56GND92GND128 VDDEXT21DAI_P3 (SCLK0)57VDDEXT93VDDINT129GND22GND58DAI_P20 (S

42、FS45)94VDDEXT130VDDINT23VDDEXT59GND95AVDD131AD624VDDINT60VDDINT96AVSS132AD525GND61FLAG297GND133AD426DAI_P4 (SFS0)62FLAG398CLKOUT134VDDINT27DAI_P5 (SD1A)63VDDINT99EMU135GND28DAI_P6 (SD1B)64GND100TDO136AD329DAI_P7 (SCLK1)65VDDINT101TDI137AD230VDDINT66GND102TRST138VDDEXT31GND67VDDINT103TCK139GND32VDDIN

43、T68GND104TMS140AD133GND69 VDDINT105GND141AD034DAI_P8 (SFS1)70GND106 CLKIN142WR35DAI_P9 (SD2A)71VDDINT107XTAL143VDDINT36VDDINT72VDDINT108VDDEXT14416AVR-1906 / AVR-786 / AVC-1620LC89057W (IC807)LC89057W Terminal FunctionFunctionPinNo.Pin Name1RXOUTOInput bi-phase select data output terminal2RX0ITTL co

44、mpatible digital data input terminal3RX1ICoaxial compatible amp built-in digital data input terminal4RX2ITTL compatible digital data input terminal5RX3ITTL compatible digital data input terminal6DGNDDigital GND7DVDDDigital power8RX4ITTL compatible digital data input terminal9RX5/VIITTL compatible di

45、gital data/Validity flag input terminal for modulation10RX6/UIITTL compatible digital data/User data input terminal for modulation11DVDDDigital power for PLL12DGNDDigital GND for PLL13LPFOPLL loop filter connecting terminal14AVDDAnalog power for PLL15AGNDAnalog GND for PLL16RMCKORMCK clock output te

46、rminal (256fs, 512fs, XIN, VCO)17RBCKO/IRBCK clock in/output terminal (64fs)18DGNDDigital GND19DVDDDigital power20RLRCKO/IRLRCK clock in/output terminal (fs)21RDATAOSerial audio data output terminal22SBCKOSBCK clock output terminal (32fs, 64fs, 128fs)23SLRCKOSLRCK clock output terminal (fs/2, fs, 2f

47、s)24SDINISerial audio data input terminal25DGNDDigital GND26DVDDDigital power27XMCKOOsc. amp output terminalI/O36 RERR1RXOUT35 INT2RX034 CKST3RX133 AUDIO/VO4RX232 EMPHA/UO5RX331 DGND6DGND30 DVDD7DVDD29 XIN8RX428 XOUT9RX5/VI27 XMCK10RX6/UI26 DVDD11DVDD25 DGND12DGND24SDIN37DO23SLRCK38DI22SBCK39CE21RDA

48、TA40CL20RLRCK41XMODE19DVDD42DGND18DGND43DVDD17RBCK44TMCK/PIO016RMCK45TBCK/PIO115AGND46TLRCK/PIO214AVDD47TDATA/PIO313LPF48TXO/PIOENTOP VIEW1RXOUT32EMPHA/UO33AUDIO/VO35INT40CL39CE38DI28XOUT29XIN27XMCK34CKST41XMODEInputSelector2RX03RX14RX25RX38RX49RX5/VI10RX6/UI37DO36RERR21RDATA24SDIN16RMCK17RBCK20RLRC

49、K22SBCK23SLRCK13LPF44TMCK/PIO045TBCK/PIO146TLRCK/PIO247TDATA/PIO348TXO/PIOENClockSelectorC bit, U bitPLLDemodulation&Lock DetectMicrocontrollerI/FDataSelectorI/NModulationorParallel Port17AVR-1906 / AVR-786 / AVC-1620BD3811K1 (IC701)FunctionPinNo.Pin NameI/O* For latch-up countermeasure, perform eac

50、h power supply ON/OFF in the same timing.28XOUTOXtal osc. connecting output terminal29XINIXtal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)30DVDDDigital power31DGNDDigital GND32EMPHA/UOI/OEmphasis information/U-data output/Chip address setting terminal33AUDIO/VOI/ONon-PCM