Denon-AVR685-avr-sm维修电路原理图.pdf

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1、SERVICE MANUALMODELAVR-1705/685AV SURROUND RECEIVERFor U.S.A., Canada, Europe,China & Taiwan R.O.C. model16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 JAPANX0202 V.01 DE/CDM 0406Some illustrations using in this service manual areslightly different from the actual set.Please use this service manu

2、al 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Ver. 1RadioFans.

3、CN 收音机爱 好者资料库2AVR-1705/685SAFETY 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 chassisresist

4、ance 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-1705/685DIMENSION4AVR-1705/685CAUTION IN SERVICINGInitializing AV SURROUND RECEIVERA

5、V 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, and switch on the unit.3. Check that the entire display is flashing with an interval of

6、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 to memorize your setting f

7、or 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-1705/685ADJUSTMENTAudio SectionIdling CurrentRequired measurement equipment: DC Voltmeter1. P

8、reparation(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, etc.)2. Adjustment(1) Remove top co

9、ver and set VR101, VR102, VR103, VR104, VR105, on Amp. Unit, VR106 on SURR.-BACK ch Amp. Unit at fully counterclockwise ( ) position.(2) Connect DC Voltmeter to test points (FRONT-Lch: TP104, FRONT-Rch: TP105, CENTER ch: TP103, SUR-ROUND-Lch: TP101, SURROUND-Rch: TP102, SUR-ROUND-BACK ch: CP106).(3)

10、 Connect power cord to AC Line, and turn power switch ON.(4) Presetting.MASTER VOLUME: - counterclockwise ( min.)MODE: 6CH STEREOFUNCTION: CD(5) Within 2 minutes 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 ab

11、ove, 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,TP101VR106CP106VR103,TP103VR102TP102VR105TP105F LchS LchS Back chC 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

12、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VR106 反時計方向 ( ) 回切状態。(2) (FRONT-Lch: TP104, FRONT- Rch: TP105, CENTER ch: TP103, SURROUND-Lch: TP101, SURROUND-Rch: TP102, SURROUND-BACK ch: CP106) DC Voltmeter 接続。(3) 電源 AC100V（95 105V 範囲可）接続、電源 ON 。(4) ON 後、次。M

13、ASTER 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 : 6CH STEREOFUNCTION : CD(5) 2 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-1705/685Video SectionComponent Video Level AdjustmentRequired measurement equipment etc.: Oscilloscope,

14、 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 color-bar 75% of the Test Disc (Title 12) us-ing the DVD Video Player, and check th

15、at 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)OFF SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc

16、.) DVD (Video terminal)No input2. Adjustment(1) Remove top cover and set VR601, VR602, VR603, 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 pi

17、n-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 75% of the Test Disc (Title 12)(6) Turn VR601 clockwise ( ) to adjust the COMPONENT Video

18、 Y voltage (except H. Sync) to 714 50 mVp-p. (Re-fer to Fig. 1)(7) Adjust the Variable Resistors of Cr: VR602 and Cb: VR603 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)調整調整必要測定器 : Oscilloscope, DVD VIDEO PLAYER( 例 : DVD-1500) :DVD T-S011. 準備

19、(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、C-S VIDEO2 VR601, VR602, VR603 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 O

20、N 。(5) ON 後、次。本機 FUNCTION DVD 。 75% (Title 12) 再生。(6) VR601 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: VR602、 Cb: VR603 可変抵抗器調整。(fig. 2、3 参照 )Cb, Cr: 525 50mVp-p7AVR-1705/685OscilloscopeMONITOR OUT(Y,Cb,Cr)Video SectionVR601VR602VR603CbCrY8AVR-1705/68571450mVp-pVoltsIRE:FLTY-

21、Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV (U.S.A. & Canada 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 Cb signalFig.3 Cr signal9AVR-17

22、05/685BLOCK DIAGRAM10AVR-1705/685LEVEL DIAGRAMS (1/2)11AVR-1705/685LEVEL DIAGRAMS (2/2)12AVR-1705/685SEMICONDUCTORSOnly 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. ICsCXP740096 (IC201)CXP740096 Terminal FunctionPin No.Pin NameI/OFunction1BD381

23、1K1/3812F_MUTEOBD3811K/BD3812F MUTE CONTROL2BD3811K1/3812F_CLKOBD3811K/BD3812F CLOCK3BD3811K1/3812F_DATAOBD3811K/BD3812F DATA4CDR/TAPEOCDR/TAPE MUTE5VCROVCR MUTE6ERR_MUTEOERR MUTE7SEL_CLKOSEL_CLK8BSEOAC3MUTE MUTE for BITSTREAM 989057_EMPHAILC89057 CONTROL10SW_SUMOSW SUMMING CONTROL11SHARC_SDINISHARC

24、 EX(DSP) DATA INPUT1289057_SDINILC89057 CONTROL13EPROM_RESETOEPROM RESET1489057_RESETOLC89057 RESET15SHARC_CSOSHARC EX(DSP) CS16SHARC_SDOUTOSHARC EX(DSP) DATA OUTPUT1789057_CEOLC89057 CONTROL1889057/1837_SDOUTOCONTROL DATA1989057/1837_SCLKOCONTROL CLOCK201837_RESETOCODEC RESET21REELAY_SURR_BOSURROUN

25、D BACK RELAY22SW_MUTEOSW MUTEPH7PH6PH5PH4PH3PH2PH1PH0PK7/TO1RSTVSSXTALEXTALPK6/CS0PK5/SI0PK4/SO0PK3/SCK0PF7/AN11PF6/AN10PF5/AN9PC6PC7PA0PA1PA2PA3PA4PA5PA6PA7NCVDDVSSPK1/TXPK2/TEXPI1/RMCPI2/NMIPI3/TO0/ADJPI4/INT1/CS1PI5/SCK1PC5PC4PC3PC2PC1PC0PB7/SI2PB6/SO2PB5/SCK2PB4/TO2PB3PB2PB1PB0PJ7PJ6PJ5PJ4PJ3PJ2

26、PJ1PJ0PD7PD6PD5PD4PD3PD2PD1PD0PI6/SO1PI7/SI1PE0/INT0PE1/INT2PE2/PWM0PE3/PWM1PE4PE5PE6PE7PG0/TxDPG1/RxDPG2/EC0PG3/EC1PG4/EC2PG5/INT3PG6/INT4PG7/CINTAN0AN1AN2AN3PF0/AN4PF1/AN5PF2/AN6PF3/AN7AVDDAVREFAVSSPF4/AN8123456789101112131415161718192031323334353637383940414243444546474849501009998979695949392919

27、089888786858483828121222324252627282930807978777675747372717069686766656463626160595857565554535251TOP VIEW13AVR-1705/68523RELAY_FRONT_BOFRONT B RELAY24RELAY_FRONT_AOFRONT A RELAY25RELAY_SURROSURROUND RELAY26RELAY_CNTOCENTER RELAY27RELAY_H/PORELAY H/P28FUNC_UPOENCODER INPUT (FUNCTION)29H/P_DETECTIDE

28、TECT H/P30FUNC_DOWNOENCODER INPUT (FUNCTION)31SURR_SB_MUTEOSURROUND BACK MUTE32CNT_MUTEOCENTER MUTE33NC-34SURR_MUTEOSURROUND MUTE35NC-36NC-37NC-38FL_DRV_RSTOLC75721 RESET39RELAY_POWEROPOWER RELAY40RESETIRESET41GNDGND42XTALCRISTAL OSIRATER CONNECTION43EXTALCRISTAL OSIRATER CONNECTION44FL_DRV_CEOLC757

29、21 CE45FL_DRV_DATAOLC75721 DATA46FL_DRV/2090_CLKOLC75721/BU2090 CLOCK472090_DATAOBU2090 DATA48VOL_DOWNIENCODER INPUT (VOLUME)49VOL_UPIENCODER INPUT (VOLUME)50SEL_DOWNIENCODER INPUT (SELECTOR)51SEL_UPIENCODER INPUT (SELECTOR)52AVSSAVSS53VREFVREF54AVDDAVDD55S-VIDEO_DETIS Signal Detect input56COPM_DETI

30、Compornent Signal input57STEP_OPTIAREA SELECT58SET_OPTIMODEL SELECT59GNDGND60KEY_IN3IKEY INPUT61KEY_IN2IKEY INPUT62KEY_IN1IKEY INPUT63C-VIDEO_DETIComposit Signal Detect input64PROTECTIPROTECTION6589057_INTLC89057 INT66SHARC_SCLKOSHARC EX(DSP) SCLK671837_CEOCODEC CE68SHARC_RESETOSHARC EX(DSP) RESET69

31、FRONT_MUTEOFRONT MUTE70PWR_DOWNIPOWER DOWN DETECT71NC-72NC-73NC-74VIDEO_MUTEOVIDEO MUTE75TA1270_TC90A69 DATAOTA1270/TC90A69 DATA76TA1270_TC90A69 CLKOTA1270/TC90A69 SCLK77RDS_DATAIRDS(TDA7330) DATAPin No.Pin NameI/OFunction14AVR-1705/68578RDS_CLKIRDS(TDA7330) CLOCK79FLAG3ISpecial flag for ROM update8

32、0FLAG2IDSP operation check flag81FLAG1INON USE82FLAG0IEPROM chip select control for DSP83VIDEO_SEL184VDEO_SEL285REMOCONREMOTE CONTROL SIGNAL INPUT86NC-87GNDGND88VSSVSS89VDD(BACK UP)VDD FOR BACK UP90NC-91NC-92PLL_DATAOPLL CONTROL (LC72131)93PLL_CLKOPLL CONTROL (LC72131)94PLL_DT_INIPLL CONTROL (LC7213

33、1)95TU_MUTEOTUNER MUTE96STISTEREO DETECT97TUNEDITUNE DETECT98PLL_CEOPLL CONTROL (LC72131)992090_CLK(VIDEO)OBU2090 CLK1002090_DATA(VIDEO)OBU2090 DATAPin No.Pin NameI/OFunction15AVR-1705/685ADSP-21266SKSTZ-2B (IC804)ADSP-21266SKSTZ-2B Terminal Function13 6377372108144109TOP VIEWPIN 1 INDICATORPin Name

34、LQFP Pin #Pin NameLQFP Pin #Pin NameLQFP Pin #Pin NameLQFP Pin #VDDINT1VDDINT37VDDEXT73GND109CLKCFG02GND38GND74VDDINT110CLKCFG13RD39VDDINT75GND111BOOTCFG04ALE40GND76 VDDINT112BOOTCFG15AD1541DAI_P10 (SD2B)77GND113GND6AD1442DAI_P11 (SD3A)78VDDINT114VDDEXT7AD1343DAI_P12 (SD3B)79GND115GND8GND44 DAI_P13

35、(SCLK23)80VDDEXT116VDDINT9VDDEXT45DAI_P14 (SFS23)81GND117GND10AD1246DAI_P15 (SD4A)82VDDINT118VDDINT11VDDINT47VDDINT83GND119GND12GND48GND84VDDINT120VDDINT13AD1149GND85RESET121GND14AD1050DAI_P16 (SD4B)86SPIDS122FLAG015AD951DAI_P17 (SD5A)87GND123FLAG116AD852DAI_P18 (SD5B)88VDDINT124AD717DAI_P1 (SD0A)53

36、DAI_P19 (SCLK45)89SPICLK125GND18 VDDINT54VDDINT90MISO126VDDINT19GND55 GND91MOSI127GND20DAI_P2 (SD0B)56GND92GND128 VDDEXT21DAI_P3 (SCLK0)57VDDEXT93VDDINT129GND22GND58DAI_P20 (SFS45)94VDDEXT130VDDINT23VDDEXT59GND95AVDD131AD624VDDINT60VDDINT96AVSS132AD525GND61FLAG297GND133AD426DAI_P4 (SFS0)62FLAG398CLK

37、OUT134VDDINT27DAI_P5 (SD1A)63VDDINT99EMU135GND28DAI_P6 (SD1B)64GND100TDO136AD329DAI_P7 (SCLK1)65VDDINT101TDI137AD230VDDINT66GND102TRST138VDDEXT31GND67VDDINT103TCK139GND32VDDINT68GND104TMS140AD133GND69 VDDINT105GND141AD034DAI_P8 (SFS1)70GND106 CLKIN142WR35DAI_P9 (SD2A)71VDDINT107XTAL143VDDINT36VDDINT

38、72VDDINT108VDDEXT14416AVR-1705/685LC89057W (IC807)LC89057W Terminal FunctionFunctionPinNo.Pin Name1RXOUTOInput bi-phase select data output terminal2RX0ITTL compatible digital data input terminal3RX1ICoaxial compatible amp built-in digital data input terminal4RX2ITTL compatible digital data input ter

39、minal5RX3ITTL compatible digital data input terminal6DGNDDigital GND7DVDDDigital power8RX4ITTL compatible digital data input terminal9RX5/VIITTL compatible digital data/Validity flag input terminal for modulation10RX6/UIITTL compatible digital data/User data input terminal for modulation11DVDDDigita

40、l power for PLL12DGNDDigital GND for PLL13LPFOPLL loop filter connecting terminal14AVDDAnalog power for PLL15AGNDAnalog GND for PLL16RMCKORMCK clock output terminal (256fs, 512fs, XIN, VCO)17RBCKO/IRBCK clock in/output terminal (64fs)18DGNDDigital GND19DVDDDigital power20RLRCKO/IRLRCK clock in/outpu

41、t terminal (fs)21RDATAOSerial audio data output terminal22SBCKOSBCK clock output terminal (32fs, 64fs, 128fs)23SLRCKOSLRCK clock output terminal (fs/2, fs, 2fs)24SDINISerial audio data input terminal25DGNDDigital GND26DVDDDigital power27XMCKOOsc. amp output terminalI/O36 RERR1RXOUT35 INT2RX034 CKST3

42、RX133 AUDIO/VO4RX232 EMPHA/UO5RX331 DGND6DGND30 DVDD7DVDD29 XIN8RX428 XOUT9RX5/VI27 XMCK10RX6/UI26 DVDD11DVDD25 DGND12DGND24SDIN37DO23SLRCK38DI22SBCK39CE21RDATA40CL20RLRCK41XMODE19DVDD42DGND18DGND43DVDD17RBCK44TMCK/PIO016RMCK45TBCK/PIO115AGND46TLRCK/PIO214AVDD47TDATA/PIO313LPF48TXO/PIOENTOP VIEW1RXO

43、UT32EMPHA/UO33AUDIO/VO35INT40CL39CE38DI28XOUT29XIN27XMCK34CKST41XMODEInputSelector2RX03RX14RX25RX38RX49RX5/VI10RX6/UI37DO36RERR21RDATA24SDIN16RMCK17RBCK20RLRCK22SBCK23SLRCK13LPF44TMCK/PIO045TBCK/PIO146TLRCK/PIO247TDATA/PIO348TXO/PIOENClockSelectorC bit, U bitPLLDemodulation&Lock DetectMicrocontrolle

44、rI/FDataSelectorI/NModulationorParallel Port17AVR-1705/685BD3811K1 (IC701)FunctionPinNo.Pin NameI/O* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.28XOUTOXtal osc. connecting output terminal29XINIXtal osc. connection, external clock input terminal (24.576MHz or 12.

45、288MHz)30DVDDDigital power31DGNDDigital GND32EMPHA/UOI/OEmphasis information/U-data output/Chip address setting terminal33AUDIO/VOI/ONon-PCM detect/V-flag output/ Chip address setting terminal34CKSTI/OClock switch transition period output/Demodulation master or slave function switching terminal35INT

46、I/OInterrupt output for com (Interrupt factor selectable)/Modulation or general I/O switching terminal36RERROPLL lock error, data error flag output37DOOcom I/F, read out data output terminal (3-state)38DIIcom I/F, write data input terminal39CEIcom I/F, chip enable input terminal40CLIcom I/F, clock i

47、nput terminal41XMODEISystem reset input terminal42DGNDDigital GND43DVDDDigital power44TMCK/PIO0I/O256fs system clock input for modulation/General I/O in/output terminal45TBCK/PIO1I/O64fs bit clock input for modulation/General I/O in/output terminal46TLRCK/PIO2I/Ofs clock input for modulation/General

48、 I/O in/output terminal47TDATA/PIO3I/OSerial audio data input for modulation/General I/O in/output terminal48TXO/PIOENO/IModulation data output/ General I/O enable input terminal12345678910111213141516171819202122232464636261605958575655545352515049484746454443424125268079787776757473727170696867666

49、527282930313233343536373839405.1ch Mode SW2 DVD5.1ch Mode SW15.1ch Mode SW2 DSPBASSBOOSTLOGICTNF2TNF1BNF11BNF21BNF12BNF22BBNF2OUT2BBNF1OUT1AGND8AGND7VCCAGND6VEEAGND5MUTECLDADGNDAGND4GOUTSRVINSRAGND3IN22IN21IN12IN11ROUT32ROUT31ROUT22ROUT21ROUT12ROUT11AGND10GOUT2VIN2AGND9GOUT1VIN1IN31IN32IN41IN42IN51I

50、N52IN61IN62IN71IN72IN81IN82INDVDSRINDVDSLINDVDCINDVDSWOUT2(+)OUT2(-)OUT1(+)OUT1(-)IN1DSPIN1MIXIN2DSPIN2MIXINDSPSRINDSPSLINDSPCINDSPSWAGND1GOUTSWVINSWAGND2GOUTCVINCOUTSWOUTCOUTSLOUTSRVINSLGOUTSLTREBLEBASS18AVR-1705/685AD1837 (IC808)AD1837 Terminal FunctionDescriptionPin No.Pin NameInput/Output1,39DVD