Marantz-SR-8500-Service-Manual 电路图 维修手册.pdf

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1、SR7500 / SR8500 PS7500 / PS8500 Please use this service manual with referring to the user guide ( D.F.U. ) without fail. Service Manual SR7500 / SR8500SR7500 / SR8500PS7500 / PS8500PS7500 / PS8500 AV Surround Receiver SR7500 /A1B/A1S/K1G/L1G /N1B/N1G/N1S/U1B PS7500 /F1N AV Surround Amplifi er Part n

2、o. 90M10BW855012 2nd Issue 2004.11 MJI TABLE OF CONTENTS SECTION 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 DIAG

3、RAM. 23 10. PARTS LOCATION. 45 11. IC DATA. 61 12. EXPLODED VIEW AND PARTS LIST. 85 13. ELECTRICAL PARTS LIST. 97 SR8500 /A1B/A1S/L1G/N1B /N1G/N1S/U1B PS8500 /F1N AV SURROUND RECEIVER SR7500 POWER ON/OFFPHONES STANDBY LCR SLSSR LFE DIGITAL SURROUND DISPMULTIAUTOTUNEDSTSPKR A BV-OFF NIGHT PEAKANALOG

4、DIGITAL ATT SLEEPSURRDIRECTAUTODISC 6.1MTX 6.1 PCMAAC AUX 1 INPUT AUDIOS-VIDEODIGITALVIDEOLR DOWNUP VOLUME ENTER INPUT SELECTOR 2nd EDITION 1, 25 and 27 pages were changed. RadioFans.CN 收音机爱 好者资料库 MARANTZ DESIGN AND SERVICE Using superior design and selected high grade components, MARANTZ company ha

5、s created the ultimate in stereo sound. Only original 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 : Part

6、s can be ordered either by mail or by Fax. In both 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 numb

7、er for which part is required 5. Way of shipment 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

8、between either primary AC cord connector pins ( with 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 appli

9、ed, and verifi ed before it is return to the user/customer. Ref. UL Standard No. 1492. In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 041015MJI USA MARANTZ AMERICA, INC 1100 MAPLEWOOD DRIVE ITASCA, IL. 60143 USA PHONE : 630 - 741 - 0300 FAX

10、: 630 - 741 - 0301 JAPANTechnical MARANTZ JAPAN, INC. 35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505 PHONE : +81 42 748 1013 FAX : +81 42 741 9190 EUROPE / TRADING MARANTZ EUROPE B.V. P. O. BOX 8744, BUILDING SILVERPOINT BEEMDSTRAAT 11, 5653 MA EINDHOVEN THE NETHERLANDS PHONE :

11、 +31 - 40 - 2507844 FAX : +31 - 40 - 2507860 AUSTRALIA QualiFi Pty Ltd, 24 LIONEL ROAD, MT. WAVERLEY VIC 3149 AUSTRALIA PHONE : +61 - (0)3 - 9543 - 1522 FAX : +61 - (0)3 - 9543 - 3677 NEW ZEALAND WILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958 FAX :

12、+64 - 9 - 8463554 THAILAND MRZ STANDARD CO., LTD 746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILAND PHONE : +66 - 2 - 222 9181 FAX : +66 - 2 - 224 6795 TAIWAN PAI- YUING CO., LTD. 6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 - 2 - 25221304 FA

13、X : +886 - 2 - 25630415 MALAYSIA WO KEE HONG ELECTRONICS SDN. BHD. 2ND FLOOR BANGUNAN INFINITE CENTRE LOT 1, JALAN 13/6, 46200 PETALING JAYA SELANGOR DARUL EHSAN, MALAYSIA PHONE : +60 - 3 - 7954 8088 FAX : +60 - 3 - 7954 7088 KOREA MK ENTERPRISES LTD. ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HAN

14、GANG-RO, YONGSAN-KU, SEOUL KOREA PHONE : +822 - 3232 - 155 FAX : +822 - 3232 - 154 SINGAPORE WO KEE HONG DISTRIBUTION PTE LTD No.1 JALAN KILANG TIMOR #08-03 PACIFIC TECH CENTRE SINGAPORE 159303 PHONE : +65 6376 0338 FAX : +65 6376 0166 CANADA MARANTZ CANADA INC. 5-505 APPLE CREEK BLVD. MARKHAM, ONTA

15、RIO L3R 5B1 CANADA PHONE : 905 - 415 - 9292 FAX : 905 - 475 - 4159 RadioFans.CN 收音机爱 好者资料库 1 1. TECHNICAL SPECIFICATIONS 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 %

16、 Stereo Separation.1 kHz 45 dB Alternate Channel Selectivity. 300 kHz 60 dB Image Rejection.98 MHz 70 dB Tuner Output Level . 1 kHz, 75 kHz Dev 800 mV AM 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 D

17、istortion.400 Hz, 30 % Mod. 0.5 % Selectivity. 20 kHz 70 dB AUDIO SECTION SR7500/PS7500 Power Output (20 Hz - 20 kHz/THD=0.08%) Front L 3 Note: Dolby Digital (2 ch: Lt/Rt): signal with Dolby Surround flag Speakers are full set. No sound outputs from the surround speaker, center speaker and subwoofer

18、 if the DVD disc has no surround data. Abbreviations L/R : Front speakers C : Center speaker SL/SR : Surround speakers SBL/SBR : Surround Back speakers SubW : 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 Channe

19、lFront information display Surround ModeInput SignalDecoding L/RC SLSBL SubWSignal format indicatorsChannel status SR SBR VirtualDolby Surr. EXVirtualO-2 DIGITAL EXL, C, R, SL, SR, S, LFE Dolby D (5.1ch)VirtualO-2 DIGITALL, C, R, SL, SR, LFE Dolby D (2ch)VirtualO-2 DIGITALL, R Dolby D (2ch Surr)Virt

20、ualO-2 DIGITAL , 2 SURROUNDL, R, S DTS-ESVirtualO-dts, ESL, C, R, SL, SR, LFE DTS (5.1ch)VirtualO-dtsL, C, R, SL, SR, LFE PCM (Audio)VirtualO-PCML, R HDCD*VirtualO-PCM, HDCDL, R AnalogVirtualO-ANALOG- Multi Ch.Dolby Surr. EXMulti Channel StereoOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFE StereoDolby D (

21、5.1ch)Multi Channel StereoOOO-O2 DIGITALL, C, R, SL, SR, LFE Dolby D (2ch)Multi Channel StereoOOOO-2 DIGITALL, R Dolby D (2ch Surr)Multi Channel StereoOOOO-2 DIGITAL , 2 SURROUNDL, R, S DTS-ESDTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFE DTS (5.1ch)DTS 5.1OOO-OdtsL, C, R, SL, SR, LFE PCM (Audio)Multi Ch

22、annel StereoOOOO-PCML, R HDCD*Multi Channel StereoOOOO-PCM, HDCDL, R AnalogMulti Channel StereoOOOO-ANALOG- THXDolby Surr. EXTHX Surround EX + Dolby DigitalOOOOO2 DIGITAL EXL, C, R, SL, SR, S, LFE Dolby D (5.1ch)THX + Dolby DigitalOOO-O2 DIGITALL, C, R, SL, SR, LFE Dolby D (2ch)THX + Pro Logic IIxOO

23、OO-2 DIGITALL, R Dolby D (2ch Surr)THX + Pro Logic IIxOOOO-2DIGITAL , 2 SURROUNDL, R, S DTS-ESTHX + DTS-ESOOOOOdts, ESL, C, R, SL, SR, S, LFE DTS 96/24THX + DTSOOO-Odts 96/24L, C, R, SL, SR, LFE DTS (5.1ch)THX + DTSOOO-OdtsL, C, R, SL, SR, LFE PCM (Audio)THX + Pro Logic IIxOOOO-PCML, R HDCD*THX + Pr

24、o Logic IIxOOOO-PCM, HDCDL, R AnalogTHX + Pro Logic IIxOOOO-ANALOG- *: PS8500 only 4 2. TECHNICAL DESCRIPTION THX is an exclusive set of standards and technologies established by the world-renowned film production company, Lucasfilm Ltd. THX resulted from George Lucas desire to reproduce the movie s

25、oundtrack as faithfully as possible both in the movie theater and in the home theater. THX engineers developed patented technologies to accurately translate the sound from a movie theater environment into the home, correcting the tonal and spatial errors that occur. When the THX mode of the SR7500 i

26、s on, three distinct THX technologies are automatically added: Re-Equalization-restores the correct tonal balance for watching a movie in a home environment. These sounds are otherwise mixed to be brighter for a large movie theater. Re-EQ compensates for this and prevents the soundtracks from being

27、overly bright and harsh when played in a home theater. Timbre Matching-filters the information going to the surround speakers so they more closely match the tonal characteristics of the sound coming from the front speakers. This ensures seamless panning between the front and surround speakers. Adapt

28、ive Decorrelation-slightly changes one surround channels time and phase relationship with respect to the other surround channel. This expands the listening position and creates with only two surround speakers the same spacious surround experience as in a movie theater with multiple surround speakers

29、. The Marantz SR7500 was required to pass a rigorous series of quality and performance tests, in addition to incorporating the technologies explained above, in order to be THX certified by Lucasfilm Ltd. THX requirements cover every aspect of performance including pre-amplifier and power amplifier p

30、erformance and operation, and hundreds of other parameters in both the digital and analog domain. Movies which have been encoded in Dolby Digital, DTS, Dolby Pro Logic, stereo and Mono will all benefit from the THX mode when being viewed. The THX mode should only be activated when watching movies wh

31、ich were originally produced for a movie theater environment. This is because they were originally mixed for a small room environment. THX is a trademark or registered trademark of THX Ltd. Surround EX is a jointly developed technology of THX and Dolby Laboratories, Inc. and is a trademark of Dolby

32、Laboratories, Inc. Used under authorization. All rights reserved. THX Surround EXDolby DIgital Surround EX is a joint development of Dolby Laboratories and THX Ltd. In a movie theater, film soundtracks that have been encoded with Dolby Digital Surround EX technology are able to reproduce an extra ch

33、annel which has been added during the mixing of the program. This channel, called Surround Back, places sounds behind the listener in addition to the currently available front left, front center, front right, surround right, surround left and subwoofer channels. This additional channel provides the

34、opportunity for more detailed imaging behind the listener and brings more depth, spacious ambience and sound localization than ever before. Movies that were created using the Dolby Digital Surround EX technology, when released into the home consumer market may exhibit wording to that effect on the p

35、ackaging. A list of movies created using this technology can be found on the Dolby web site at . A list of available DVD software titles encoded with this technology an be found at . Only receiver and controller products bearing the THX Surround EX logo, when in the THX Surround EX mode, faithfully

36、reproduce this new technology in the home. This product may also engage the THX Surround EX mode during the playback of 5.1 channel material that is not Dolby Digital Surround EX eocnded. In such case, the information delivered to the Surround Back channel will be program dependent and may or may no

37、t be very pleasing depending on the particular soundtrack and the tastes of the individual listener. “SURROUND EX” is a trademark of Dolby Laboratories. Used under authorization. 5 DTS was introduced in 1994 to provide 5.1 channels of discrete digital audio into home theater systems. DTS brings you

38、premium quality discrete multichannel digital sound to both movies and music. DTS is a multichannel sound system designed to create full range digital sound reproduction. The no compromise DTS digital process sets the standard of quality for cinema sound by delivering an exact copy of the studio mas

39、ter recordings to neighborhood and home theaters. Now, every moviegoer can hear the sound exactly as the moviemaker intended. DTS can be enjoyed in the home for either movies or music on of DVDs, LDs, and CDs. “DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc

40、. The advantages of discrete multichannel systems over matrix are well known. But even in homes equipped for discrete multichannel, there remains a need for high-quality matrix decoding. This is because of the large library of matrix surround motion pictures available on disc and on VHS tape; and an

41、alog television broadcasts. The typical matrix decoder of today derives a center channel and a mono surround channel from two-channel matrix stereo material. It is better than a simple matrix in that it includes steering logic to improve separation, but because of its mono, band-limited surround it

42、can be disappointing to users accustomed to discrete multichannel. Neo:6 offers several important improvements as follow, Neo:6 provides up to six full-band channels of matrix decoding from stereo matrix material. Users with 6.1 and 5.1 systems will derive six and five separate channels, respectively, corresponding to the standard home-theater speaker layouts. Neo:6 technology allows various sound elements within a channel or channels to be steered separately, and in a way which follows naturally from the original presentation. the subtlety and