Marantz-SR7500-avr-sm 维修电路原理图.pdf

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1、SR7500 / SR8500PS7500 / PS8500Please use this service manual with referring to the user guide ( D.F.U. ) without fail.ServiceManualSR7500 / SR8500SR7500 / SR8500PS7500 / PS8500PS7500 / PS8500AV Surround ReceiverSR7500 /A1B/A1S/K1G/L1G/N1B/N1G/N1S/U1BPS7500 /F1NAV Surround Amplifi erPart no. 90M10BW8

2、550122nd Issue 2004.11MJITABLE OF CONTENTSSECTION PAGE 1. TECH NI CAL SPEC I FI CA TIONS . 1 2. TECHNICAL DESCRIPTION . 4 3. POWER AMPLIFIER AD JUST MENT . 8 4. SERVICE MODE. 9 5. SYSTEM ERROR . 11 6. UPDATE FIRMWARE. 12 7. WIRING DI A GRAM . 19 8. BLOCK DIAGRAM . 21 9. SCHEMATIC DIAGRAM. 2310. PART

3、S LOCATION. 4511. IC DATA. 6112. EXPLODED VIEW AND PARTS LIST. 8513. ELECTRICAL PARTS LIST. 97SR8500 /A1B/A1S/L1G/N1B/N1G/N1S/U1BPS8500 /F1NAV SURROUND RECEIVER SR7500POWER ON/OFFPHONESSTANDBYLCRSLSSRLFEDIGITALSURROUNDDISPMULTIAUTOTUNEDSTSPKR A BV-OFFNIGHTPEAKANALOGDIGITALATTSLEEPSURRDIRECTAUTODISC

4、6.1MTX 6.1PCMAACAUX 1 INPUTAUDIOS-VIDEODIGITALVIDEOLRDOWNUPVOLUMEENTERINPUT SELECTOR2nd EDITION 1, 25 and 27 pages were changed.RadioFans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.Only ori

5、ginal MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifi cations for which it is famous. Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In bo

6、th cases, the correct part number has to be specifi ed. The following information must be supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part numbers and quantities required 3. Description of parts 4. Model number for which part is required 5. Way of shipment

7、 6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins ( w

8、ith unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verifi ed before it is return to the user

9、/customer. Ref. UL Standard No. 1492.In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 041015MJIUSAMARANTZ AMERICA, INC1100 MAPLEWOOD DRIVEITASCA, IL. 60143USAPHONE : 630 - 741 - 0300FAX : 630 - 741 - 0301JAPANTechnical MARANTZ JAPAN, INC.35- 1

10、, 7- CHOME, SAGAMIONOSAGAMIHARA - SHI, KANAGAWAJAPAN 228-8505PHONE : +81 42 748 1013FAX : +81 42 741 9190EUROPE / TRADING MARANTZ EUROPE B.V.P. O. BOX 8744, BUILDING SILVERPOINTBEEMDSTRAAT 11, 5653 MA EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2507844FAX : +31 - 40 - 2507860AUSTRALIAQualiFi Pty Ltd,

11、24 LIONEL ROAD, MT. WAVERLEY VIC 3149AUSTRALIAPHONE : +61 - (0)3 - 9543 - 1522FAX : +61 - (0)3 - 9543 - 3677NEW ZEALANDWILDASH AUDIO SYSTEMS NZ14 MALVERN ROAD MT ALBERTAUCKLAND NEW ZEALANDPHONE : +64 - 9 - 8451958FAX : +64 - 9 - 8463554THAILANDMRZ STANDARD CO., LTD746 - 754 MAHACHAI ROAD.,WANGBURAPA

12、PIROM, PHRANAKORN, BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX : +66 - 2 - 224 6795TAIWANPAI- YUING CO., LTD.6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 - 2 - 25221304FAX : +886 - 2 - 25630415MALAYSIAWO KEE HONG ELECTRONICS SDN. BHD.2ND FLOOR BANGUNAN INFINITE

13、CENTRELOT 1, JALAN 13/6, 46200 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 - 3 - 7954 8088FAX : +60 - 3 - 7954 7088KOREAMK ENTERPRISES LTD.ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOULKOREAPHONE : +822 - 3232 - 155FAX : +822 - 3232 - 154SINGAPOREWO KEE HONG DI

14、STRIBUTION PTE LTDNo.1 JALAN KILANG TIMOR#08-03 PACIFIC TECH CENTRE SINGAPORE 159303PHONE : +65 6376 0338FAX : +65 6376 0166CANADAMARANTZ CANADA INC.5-505 APPLE CREEK BLVD. MARKHAM, ONTARIO L3R 5B1CANADAPHONE : 905 - 415 - 9292FAX : 905 - 475 - 4159RadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONS

15、FM TUNER SECTION SR7500/SR8500 Frequency Range.87.5 - 108.0 MHz Usable Sensitivity .IHF 1.8 V/16.4 dBf Signal to Noise Ratio. Mono/Stereo 75/70 dB Distortion.Mono/Stereo 0.2/0.3 % Stereo Separation.1 kHz 45 dB Alternate Channel Selectivity. 300 kHz 60 dB Image Rejection.98 MHz 70 dB Tuner Output Lev

16、el . 1 kHz, 75 kHz Dev 800 mVAM TUNER SECTION SR7500/SR8500 Frequency Range.531 - 1602 kHz /A/K/N . 520 - 1710 kHz /L/U Signal to Noise Ratio.50 dB Usable Sensitivity.Loop 400V Distortion.400 Hz, 30 % Mod. 0.5 % Selectivity. 20 kHz 70 dBAUDIO SECTION SR7500/PS7500 Power Output (20 Hz - 20 kHz/THD=0.

17、08%) Front L&R.8 ohms 105 W / Ch Center.8 ohms 105 W / Ch Surround L&R.8 ohms 105 W / Ch Surround Back.8 ohms 105 W / Ch Front L&R.6 ohms 130 W / Ch Center.6 ohms 130 W / Ch Surround L&R.6 ohms 130 W / Ch Surround Back.6 ohms 130 W / Ch SR8500/SR7500 Power Output (20 Hz - 20 kHz/THD=0.08%) Front L&R

18、.8 ohms 110 W / Ch Center.8 ohms 110 W / Ch Surround L&R.8 ohms 110 W / Ch Surround Back.8 ohms 110 W / Ch Front L&R.6 ohms 145 W / Ch Center.6 ohms 145 W / Ch Surround L&R.6 ohms 145 W / Ch Surround Back.6 ohms 145 W / Ch Input Sensitivity/Impedance. 168 mV/ 47 kohms Signal to Noise Ratio Analog In

19、put / Source Direct.105 dB Frequency Response Analog Input / Source Direct.8 Hz - 100 kHz ( 3 dB) Digital Input / 96 kHz PCM. 8 Hz - 45 kHz ( 3 dB)VIDEO Television Format . NTSC/PAL Input Level/Impedance.1 Vp-p/75 ohms Output Level/Impedance.1 Vp-p/75 ohms Video Frequency Response .5 Hz to 8 MHz (-

20、1 dB) Video Frequency (Component) .5 Hz to 80 MHz (- 1 dB) S/N.60 dBGENERAL Power Requirement.AC 240 V 50/60 Hz /A .AC 100 V 50/60 Hz /F .AC 220 V 50 Hz /K .AC 110 V 60 Hz /L . AC 230 V 50 Hz /N . AC 120 V 60 Hz /U Power Consumption. 600 W SR7500/PS7500 . 620 W SR8500/PS8500 Weight .14.8 kg (32.6 Ib

21、s) SR7500/PS7500 .15.0 kg (33.1 Ibs) SR8500/PS8500ACCESSORIES Remote Control Unit RC8500SR . 1 AAA-size batteries. 3 Microphone MC-10. 1 Front AUX Jack Cover. 1 AC cable. 1 FM Antenna SR7500/SR8500. 1 AM Loop Antenna SR7500/SR8500 . 12 Output ChannelFront information displaySurround ModeInput Signal

22、DecodingL/RCSLSBLSubWSignal format indicatorsChannel statusSR SBRAUTODolby Surr. EXDolby Digital EXOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)Dolby Digital 5.1OOO-O2 DIGITALL, C, R, SL, SR, LFEDolby D(2ch)Dolby Digital 2.0O-2 DIGITALL, RDolby D (2ch Surr)Pro Logic IIx movieOOOO-2 DIGITAL

23、 , 2 SURROUNDL, R, SDTS-ESDTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFEDTS 96/24DTS 96/24OOO-Odts 96/24L, C, R, SL, SR, LFEDTS (5.1ch)DTS 5.1OOO-OdtsL, C, R, SL, SR, LFEPCM(Audio)PCM (Stereo)O-PCML, RPCM 96kHzPCM (96kHz Stereo)O-PCML, RHDCD*StereoO-PCM, HDCDL, RAnalogStereoO-ANALOG-PURE DIRECTDolby D Su

24、rr. EXDolby Digital EXOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)Dolby Digital 5.1OOO-O2 DIGITALL, C, R, SL, SR, LFEDolby D (2ch)Dolby Digital 2.0O-2 DIGITALL, RDolby D (2ch Surr)Pro Logic IIx movieOOOO-2 DIGITAL , 2 SURROUNDL, R, SDTS-ESDTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFEDTS 96/24

25、DTS 96/24OOO-Odts 96/24L, C, R, SL, SR, LFEDTS (5.1ch)DTS 5.1OOO-OdtsL, C, R, SL, SR, LFEPCM (Audio)PCM (Stereo)O-PCML, RPCM 96kHzPCM (96kHz Stereo)O-PCML, RHDCD*StereoO-PCM, HDCDL, RAnalogStereoO-ANALOG-EX/ESDolby D Surr. EXDolby Digital EXOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)Dolb

26、y Digital EXOOOOO2 DIGITALL, C, R, SL, SR, LFEDTS-ESDTS-ESOOOOOdts , ESL, C, R, SL, SR, S, LFEDTS 96/24DTS-ESOOOOOdts 96/24L, C, R, SL, SR, LFEDTS(5.1ch)DTS-ESOOOOOdtsL, C, R, SL, SR, LFEDOLBYDolby D Surr. EXDolby Digital 5.1OOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFE(PLIIx movie)Dolby D (5.1ch)Dolby D

27、igital 5.1OOOOO2 DIGITALL, C, R, SL, SR, LFE(PLIIx music)Dolby D (2ch)Pro Logic IIxOOOO-2 DIGITALL, R(PLIIx game)Dolby D (2ch Surr)Pro Logic IIxOOOO-2 DIGITAL , 2 SURROUNDL, R, SPCM (Audio)Pro Logic IIxOOOO-PCML, RHDCD*Pro Logic IIxOOOO-PCM, HDCDL, RAnalogPro Logic IIxOOOO-ANALOG-DTSDTS-ESDTS 5.1OOO

28、-Odts, ESL, C, R, SL, SR, S, LFE(Neo:6 Cinema)DTS 96/24DTS 96/24OOO-Odts 96/24L, C, R, SL, SR, LFE(Neo:6 Music)DTS (5.1ch)DTS 5.1OOO-OdtsL, C, R, SL, SR, LFEPCM (Audio)Neo:6OOOO-PCML, RAnalogNeo:6OOOO-ANALOG-Dolby D (2ch)Neo:6OOOO-2 DIGITALL, RDolby D (2ch Surr)Neo:6OOOO-2 DIGITAL , 2 SURROUNDL, R,

29、SCSII CinemaPCM (Audio)CS IIOOOOOPCML, RCSII MusicHDCD*CSIIOOOOOPCM, HDCDL, RCSII MonoAnalogCS IIOOOOOANALOG-Dolby D (2ch)CS IIOOOOO2 DIGITALL, RDolby D (2ch Surr)CS IIOOOOO2 DIGITAL , 2 SURROUNDL, R, SSTEREODolby Surr. EXStereoO-O2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)StereoO-O2 DIGITALL

30、, C, R, SL, SR, LFEDolby D (2ch)StereoO-2 DIGITALL, RDolby D (2ch Surr)StereoO-O2DIGITAL , 2 SURROUNDL, R, SDTS-ESStereoO-Odts, ESL, C, R, SL, SR, S, LFEDTS 96/24StereoO-Odts 96/24L, C, R, SL, SR, LFEDTS (5.1ch)StereoO-OdtsL, C, R, SL, SR, LFEPCM (Audio)StereoO-PCML, RPCM 96kHzStereoO-PCML, RHDCD*St

31、ereoO-PCM, HDCDL, RAnalogStereoO-ANALOG-*: SR8500 only*: PS8500 onlyThe relation between the selected surround mode and the input signalThe surround mode is selected with the surround mode buttons on SR7500/SR8500/PS7500/PS8500 or the remote control unit. However, the sound you hear is subject to th

32、e relationship between the selected surround mode and input signal. That relationship is as follows;3Note: Dolby Digital (2 ch: Lt/Rt): signal with DolbySurround flag Speakers are full set. No sound outputs from the surround speaker,center speaker and subwoofer if the DVD disc hasno surround data.Ab

33、breviationsL/R : Front speakersC : Center speakerSL/SR : Surround speakersSBL/SBR : Surround Back speakersSubW : Sub woofer speaker Dolby Digital (2ch Surr) :処理2ch信号 * :他Large/Small出力異。L/R : C : SL/SR : SBL/SBR : SubW : *: SR8500 only Output ChannelFront information displaySurround ModeInput SignalD

34、ecodingL/RCSLSBLSubWSignal format indicatorsChannel statusSR SBRVirtualDolby Surr. EXVirtualO-2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)VirtualO-2 DIGITALL, C, R, SL, SR, LFEDolby D (2ch)VirtualO-2 DIGITALL, RDolby D (2ch Surr)VirtualO-2 DIGITAL , 2 SURROUNDL, R, SDTS-ESVirtualO-dts, ESL, C,

35、 R, SL, SR, LFEDTS (5.1ch)VirtualO-dtsL, C, R, SL, SR, LFEPCM (Audio)VirtualO-PCML, RHDCD*VirtualO-PCM, HDCDL, RAnalogVirtualO-ANALOG-Multi Ch.Dolby Surr. EXMulti Channel StereoOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFEStereoDolby D (5.1ch)Multi Channel StereoOOO-O2 DIGITALL, C, R, SL, SR, LFEDolby D

36、(2ch)Multi Channel StereoOOOO-2 DIGITALL, RDolby D (2ch Surr)Multi Channel StereoOOOO-2 DIGITAL , 2 SURROUNDL, R, SDTS-ESDTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFEDTS (5.1ch)DTS 5.1OOO-OdtsL, C, R, SL, SR, LFEPCM (Audio)Multi Channel StereoOOOO-PCML, RHDCD*Multi Channel StereoOOOO-PCM, HDCDL, RAnalog

37、Multi Channel StereoOOOO-ANALOG-THXDolby Surr. EXTHX Surround EX + Dolby DigitalOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFEDolby D (5.1ch)THX + Dolby DigitalOOO-O2 DIGITALL, C, R, SL, SR, LFEDolby D (2ch)THX + Pro Logic IIxOOOO-2 DIGITALL, RDolby D (2ch Surr)THX + Pro Logic IIxOOOO-2DIGITAL , 2 SURROUN

38、DL, R, SDTS-ESTHX + DTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFEDTS 96/24THX + DTSOOO-Odts 96/24L, C, R, SL, SR, LFEDTS (5.1ch)THX + DTSOOO-OdtsL, C, R, SL, SR, LFEPCM (Audio)THX + Pro Logic IIxOOOO-PCML, RHDCD*THX + Pro Logic IIxOOOO-PCM, HDCDL, RAnalogTHX + Pro Logic IIxOOOO-ANALOG-*: PS8500 only42.

39、TECHNICAL DESCRIPTIONTHX is an exclusive set of standards andtechnologies established by the world-renownedfilm production company, Lucasfilm Ltd. THXresulted from George Lucas desire to reproducethe movie soundtrack as faithfully as possible bothin the movie theater and in the home theater.THX engi

40、neers developed patented technologiesto accurately translate the sound from a movietheater environment into the home, correcting thetonal and spatial errors that occur.When the THX mode of the SR7500 is on, threedistinct THX technologies are automaticallyadded:Re-Equalization-restores the correct to

41、nal balancefor watching a movie in a home environment.These sounds are otherwise mixed to be brighterfor a large movie theater. Re-EQ compensates forthis and prevents the soundtracks from beingoverly bright and harsh when played in a hometheater.Timbre Matching-filters the information going tothe su

42、rround speakers so they more closely matchthe tonal characteristics of the sound coming fromthe front speakers.This ensures seamless panning between the frontand surround speakers.Adaptive Decorrelation-slightly changes onesurround channels time and phase relationshipwith respect to the other surrou

43、nd channel.This expands the listening position and createswith only two surround speakers the samespacious surround experience as in a movietheater with multiple surround speakers.The Marantz SR7500 was required to pass arigorous series of quality and performance tests, inaddition to incorporating t

44、he technologiesexplained above, in order to be THX certified byLucasfilm Ltd.THX requirements cover every aspect ofperformance including pre-amplifier and poweramplifier performance and operation, andhundreds of other parameters in both the digitaland analog domain.Movies which have been encoded in

45、Dolby Digital,DTS, Dolby Pro Logic, stereo and Mono will allbenefit from the THX mode when being viewed.The THX mode should only be activated whenwatching movies which were originally producedfor a movie theater environment.This is because they were originally mixed for asmall room environment.THX i

46、s a trademark or registered trademark of THXLtd. Surround EX is a jointly developed technologyof THX and Dolby Laboratories, Inc. and is atrademark of Dolby Laboratories, Inc. Used underauthorization. All rights reserved.THX Surround EXDolby DIgital Surround EX is ajoint development of Dolby Laborat

47、ories and THXLtd.In a movie theater, film soundtracks that have beenencoded with Dolby Digital Surround EXtechnology are able to reproduce an extra channelwhich has been added during the mixing of theprogram. This channel, called Surround Back,places sounds behind the listener in addition to thecurr

48、ently available front left, front center, frontright, surround right, surround left and subwooferchannels. This additional channel provides theopportunity for more detailed imaging behind thelistener and brings more depth, spaciousambience and sound localization than ever before.Movies that were cre

49、ated using the Dolby DigitalSurround EX technology, when released into thehome consumer market may exhibit wording to thateffect on the packaging. A list of movies createdusing this technology can be found on the Dolbyweb site at . A list of availableDVD software titles encoded with this technologya

50、n be found at .Only receiver and controller products bearing theTHX Surround EX logo, when in the THX SurroundEX mode, faithfully reproduce this new technologyin the home. This product may also engage theTHX Surround EX mode during the playback of 5.1channel material that is not Dolby Digital Surrou