Denon-AVR3805EU-avr-sm维修电路原理图.pdf
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1、SERVICE MANUALMODEL AVR-3805 AVC-3890AV SURROUND RECEIVER / AMPLIFIER16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 JAPAN X0197V.02 DE/CDM 0403For Europe & Asia model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。Please use this service manual with referring to the opera
2、ting instructions without fail.Some illustrations using in this service manual are slightly different from the actual set.修理際、必取扱説明書参照上、作業行。本文中使用、説明都合上現物多少異場合。補修用性能部品保有期間、製造打切後8年。注意For purposes of improvement, specifications anddesign are subject to change without notice.RadioFans.CN 收音机爱 好者资料库22AVR
3、3805 / AVC-3890SAFETY 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.
4、 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-3805 / AVC-3890WIRE ARRANGEMENT 整形図If wire bundles are untied or moved to perform adjustme
5、nt orparts replacement etc.,be sure to rearrange them neatly asthey were originally bundled or placed afterward.Otherwise, incorrect arrangement can be a cause of noisegeneration.Wire arrangement viewed from the top44AVR-3805 / AVC-3890CAUTION IN SERVICING Initializing AV SURROUND RECEIVERInitializi
6、ng 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 .2.Hold the following PURE DIRECT button and DI-RECT button, and switch on the unit.3.Check that the entire display is flashing wi
7、th aninterval of about 1 second, and release your fingersfrom the 2 buttons and the microprocessor will be initializedNote: 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 me
8、morize 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. OFF 。2.PURE DIRECT DIRECT 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 :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。55AVR-3805 / AVC-3890ADJUSTMENT 調整Audio SectionIdling Current (1U-346
9、9-1)Required measurement equipment: DC VoltmeterPreparation(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, dumm
10、y resistor, etc.)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:TP30112 pin, FRONT-Rch: TP101 56 pin,CENTER ch: TP301 34 pin, SURROUND-Lch: TP10134 pin, S
11、URROUND-Rch: TP101 12 pin,SURROUND BACK-Lch: TP301 78 pin, SURROUNDBACK-Rch: TP301 56 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 TE
12、ST POINT voltage to 6.5 mV 0.5 mV 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 o
13、ther channels in thesame way. (1U-3469-1):DC Voltmeter(1)1530(2)?OFF?()(1)1U-3469-1VR101, VR102, VR201, VR301, VR302, VR401, VR402 ()(2) (FRONT-Lch: TP301 12 pin, FRONT-Rch: TP101 56 pin, CENTER ch: TP301 34 pin,SURROUND-Lch: TP101 34 pin, SURROUND-Rch:TP10112 pin, SURROUND BACK-Lch: TP301 78pin, SU
14、RROUND BACK-Rch: TP301 56 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)66AVR-3805 / AVC-3890DC VoltmeterFL chC chSBR chSBL ch VR402VR401SBR chSBL chVR102FR chVR101FL chVR
15、201SR chSL chFR chC chVR301SL chVR302SR chTP301TP101Audio Section77AVR-3805 / AVC-3890Video 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 electr
16、icfan, and adjust 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
17、 with thevariable 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 count
18、erclockwise ( ).(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 Li
19、ne, and turn power 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
20、. (Refer to Fig. 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?FUNCTIONDV
21、D?75(Title12)(6) VR101 ()Y(H.Sync)(Fig.1)714mV 50mVp-p(7)Cb: VR102 Cr: VR103(Fig.23)Cb,Cr: 52550 mVp-p.88AVR-3805 / AVC-3890VR102VR101VR103CrCbOscilloscopeComponent Video YVideo Section99AVR-3805 / AVC-389071450mVp-pVoltsIRE:FLTY-Signal-20.0-10.00.010.020.030.00.50.0100.00.540.050.060.048650mV (U.S.
22、A. & Canada 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 signal1010AVR-3805 / AVC-3890AUDIO BLOCK DIAG
23、RAMRECOUTINPUTDENON LINK (3rd EDITION)COAX1OPT1?DL SL/SRDL C/SWDL FL/FRDSPD/APCM1791AD/APCM1791AMUTEMUTEPLDADSP-21266EPM3032AD/APCM1791AD/APCM1791AMUTEMUTEMUTEMUTEMUTEMUTEFLCSBRSLFRSWSRSBLSL/FLDSD_SLFR/SRDSD_FRSBL/CDSD_SBLSW/SBRDSD_SWPCM_SL/FLDSD_SLPCM_FR/SRDSD_FRPCM_SBL/CDSD_SBLPCM_SW/SBRDSD_SWA/DP
24、CM1804?ADDATA8chEXT.INMUTMUTMUTMUTMUTMUTMUTFRSWSLSRSBL/ZONE3LZONE2LZONE2RFLCSBR/ZONE3RINPUTPHONOCDDVDVDPTVDBSV-AUXVCR-1VCR-2CDRFRSWSLSRSBLFLCSBRMUTMUTMUTMUTMUTMUTMUT?FRSL-ASR-ASBL/ZONE3LZONE3RFLCSBR/?SL-BSR-BRECOUTVCR-1VCR-2CDRRchAUDIOSELECTCOAX2OPT2OPT3OPT4OPT5OPT6INPUTSELECTRECSELECTFLCSBRSLFRSWSR
25、SBLE.Vol TC94A32FG?EQEXT-SBREXT-SBLEXT-SLEXT-FLEXT-FREXT-SREXT-CEXT-SWFLSLFRSRSBLCSBRSWFLlargFLsmalFRlargFRsmaZONE3LZONE3RLC89057W-VF4-ELC89057W-VF4-ELC89057W-VF4-ETC9459FSIGNAL SELECTORTC9274N-017MUTMUTMUTH/PH/P LH/P RMICMICV-AUXZONE1ZONE2ZONE3ZONE2LZONE2RTC94A46FGDSD_SRDSD_CDSD_SBRDSD_FLDSD_SBRDSD
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