Denon-AVC1590-avr-sm维修电路原理图.pdf
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1、SERVICE MANUALMODELAVR-1905/785AV SURROUND RECEIVERAVC-1590AV SURROUND AMPLIFIERFor U.S.A., Canada, Europe,U.K., Asia, China, Taiwan R.O.C.,Korea & Japan modelTOKYO ,JAPANX0214 V.01 DE/CDM 0407Some illustrations using in this service manual areslightly different from the actual set.Please use this s
2、ervice manual 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.
3、1RadioFans.CN 收音机爱 好者资料库2AVR-1905/785 AVC-1590SAFETY 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 l
4、ine 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-1905/785 AVC-1590DIMENSION4AVR-1905/785 AVC-1590CAUTION IN SERVI
5、CINGInitializing 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, and switch on the unit.3. Check that the entire di
6、splay 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 will be recovered when this initialization mode.S
7、o 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-1905/785 AVC-1590ADJUSTMENTAudio SectionIdling CurrentRe
8、quired 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 SPEAKER (Speaker terminal)No load(Do not connect speaker, dummy
9、 resistor, etc.)2. Adjustment(1) Remove top cover 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, SURR
10、OUND-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: 6CH STEREOFUNCTION: CD(5) Within 2 minutes after the power on, turn VR101 clock-wise ( ) to adjust the TEST P
11、OINT 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,TP101TP106VR107SBLTP107VR107SBRVR103,TP103VR102TP102VR105TP105F LchS LchS Back LchS Back
12、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VR106 反時計方向 ( ) 回切状態。(2) (FRONT-Lch: TP104, FRONT- Rch: TP105, CENTER ch: TP103, SURROUND-Lch: TP101, SURROUND-Rc
13、h: 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 : 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
14、DC(7) 同方法各可変抵抗調整。6AVR-1905/785 AVC-1590Video SectionComponent 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
15、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 levels.If they are out of the specified levels, adjust with the vari-able resister inside o
16、f 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 VR601, VR602, VR603, on C-S VIDEO2 Unit at fully counterclockwise ().(2) Connect a pin-plug t
17、erminated 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 terminal of the Receiver.(4) Connect power cord to AC Line, and turn power switch ON.(5) Pre
18、setting. FUNCTION:DVD Playback the color-bar 75% of the Test Disc (Title 12)(6) Turn VR601 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 Cr: VR602 and Cb: VR603 in the same way. (Refer to Fig. 2, 3)Cb,Cr
19、: 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(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 VID
20、EO2 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 ON 。(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 )
21、Cb, Cr: 525 50mVp-p7AVR-1905/785 AVC-1590OscilloscopeMONITOR OUT(Y,Cb,Cr)Video SectionVR902VR901VR903CbCrY8AVR-1905/785 AVC-159071450mVp-pVoltsIRE:FLTY-Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV (U.S.A. & Canada model) p-pVoltsIRE:FLT0.020.040.0-0.5-50.050.00.00.50.060.080.0486
22、50mV (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-1905/785 AVC-1590BLOCK DIAGRAMSWFLLR+-Y-+-+-+-+-+RSRCSLFRCDFMMCLKDSDATA1DSDATA3DACFRSRDATA-Cr-+-+-+-+-+SLSRCSWFLFRLDAI_P10(77)DAI_P13(80)DAI_P16(82)Cb
23、-+-FROMLock Detect&IF AMPBSEAUDIOADINSLRCK(23)RDATA(21)ADCfs64fs256fsMUTINGVOLUMEVOLUMEVOLUMECONTROL PORTCLKINVCRDACDACDACCLOCKCXA1511M+Y/CY/Cb/CrMICOMY+6VDATASBLSREX_SRDSP_FREX_FLRESONATOROP AMPTUNEROP AMP+5VDSPVIDEO7805+3.3V7805LC75721NE+SBRSURR LE3 ONLYFRONT INDIGITAL INDIGITAL OUT+RLX-TALSelecto
24、rINPUTIF FILTERMICOMDIRHPFCOUTCCLK(24)SelectorDATAIF FILTERABCLKALRCKDBCLKRAM128k X 8ROM128k X 8L.P.FMPX ICIF ICDIGITALFILTERDSDATA2DSDATA4VOLUMEVOLUMEVOLUMEVOLUMEVOLUMEDAI_P12(79)DAI_P11(78)TV/DBSDVD/VDPRMC OUTRMC INDVD/VDPVCR OUTVCRTV/DBSDVD/VDPDIGITALFILTERDACDIGITALFILTERDACDIGITALFILTERDACDIGIT
25、ALFILTERDACDIGITALFILTERDACDIGITALFILTERDSPBA7626VIDEO INPUT+DACSBLCDATADACSWSBDATADACFLSLDATACLKIN(142)MUTEOSDSEPARATEFROMCrTUNER PLLMUTESBREX_CSWSLEX_SLEX_FRCENTERANA_INDSP_FLANA_IN12MHzMAIN -BMAIN +BRELAYCODECDIRVIDEOMICOM781279157815780979067806FL DRIVER+MUTESBLSBRSBLCENTERFLFLFRGNDANALOG INANAL
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