Marantz-SR7300-avr-sm 维修电路原理图.pdf

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1、AV SURROUND RECEIVER SR7300UPSURROUNDVOLUMEDOWNMEMORYTUNINGMODEF/PCLEARS DI ECTMULT ROOMMUTEA D7 1CH NPUTSPEAKRS A/BPOWER ON/STANDBYPHONESENTERS ANDBYAUX1 NPUTS V DEOD GI ALVID OLAUDIORDSS VCR2AUX1AUX2VCR1DVDTVCDCD RTAPETUNERATTSELECTD SPMUL IAUTOTUNEDSTV OFNIGHTEAKANA OGDIG TALATTS EEPSURRAUTOD REC

2、TDISC 6 1MTX 61SPKR ABEQI IT LURR UNDPCMAV Surround ReceiverSR7300 / SR7300OSE / PS730003AJ855010 MIT First Issue 2002.11SR7300 /N1B/U1B/K1G/N1G/U1GSR7300F /N1B/U1B/K1G/N1G/U1GRSR7300 / SR7300FSR7300 / SR7300FPlease use this service manual with referring to the user guide ( D.F.U. ) without fail.Ser

3、viceManualPS7300 /F1B/F1NAV Surround Amplifi erPS7300PS7300TABLE OF CONTENTSSECTION PAGE 1. TECHNICAL SPECIFICATIONS AND SERVICE TOOL . 1 2. TECHNICAL DESCRIPTION. 4 3. WIRING DIAGRAM. 5 4. BLOCK DIAGRAM. 7 5. SCHEMATIC DIAGRAM . 9 6. PARTS LOCATION . 25 7. IC DATA. 36 8. EXPLODED VIEW AND PARTS LIS

4、T . 47 9. SERVICE PROGRAM. 5110. UPDATE FIRMWARE . 5311. POWER AMPLIFIER ADJUSTMENT. 5512. SYSTEM ERROR. 5613. TROUBLE SHOOTING. 5714. ELECTRICAL PARTS LIST . 61RadioFans.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

5、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 : Parts can be ordere

6、d 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 number for which pa

7、rt 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 between either p

8、rimary 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 applied, and verifi e

9、d 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. 020816MITSUPERSCOPE TECHNOLOGIES, INC.USAMARANTZ AMERICA, INC1100 MAPLEWOOD DRIVEITASCA, IL. 60143USAPHONE : 630 - 741 - 030

10、0FAX : 630 - 741 - 0301JAPANTechnical MARANTZ JAPAN, INC.35- 1, 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 -

11、 40 - 2507844FAX : +31 - 40 - 2507860TECHNICAL AUDIO GROUP PTY, LTD558 DARLING STREET, BALMAIN, NSW 2041,AUSTRALIAPHONE : 61 - 2 - 9810 - 5300FAX : 61 - 2 - 9810 - 5355AUSTRALIAQualiFi Pty Ltd,24 LIONEL ROAD, MT. WAVERLEY VIC 3149AUSTRALIAPHONE : +61 - (0)3 - 9543 - 1522FAX : +61 - (0)3 - 9543 - 367

12、7NEW ZEALANDWILDASH AUDIO SYSTEMS NZ14 MALVERN ROAD MT ALBERTAUCKLAND NEW ZEALANDPHONE : +64 - 9 - 8451958FAX : +64 - 9 - 8463554THAILANDMRZ STANDARD CO., LTD746 - 754 MAHACHAI ROAD.,WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX : +66 - 2 - 224 6795TAIWANPAI- YUIN

13、G 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 CENTRELOT 1, JALAN 13/6, 46200 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 - 3 - 7954 8088FAX :

14、+60 - 3 - 7954 7088 AMERICASMARANTZ PROFESSIONAL PRODUCTS2640 WHITE OAK CIRCLE, SUITE AAURORA, ILLINOIS 60504 USAPHONE : 630 - 820 - 4800FAX : 630 - 820 - 8103 AUSTRALIAKOREAMK ENTERPRISES LTD.ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOULKOREAPHONE : +822 - 3232 - 155FAX

15、 : +822 - 3232 - 154SINGAPOREWO KEE HONG DISTRIBUTION PTE LTD130 JOO SENG ROAD#03-02 OLIVINE BUILDING SINGAPORE 368357PHONE : +65 6858 5535 / +65 6381 8621FAX : +65 6858 6078HONG KONGJolly ProAudio Broadcast Engineering Ltd.UNIT 2, 10F, WAH HUNG CENTRE,41 HUNG TO ROAD, KWUN TONG, KLN.,HONG KONGPHONE

16、 : 852 - 21913660FAX : 852 - 21913990CANADALENBROOK INDUSTRIES LIMITED633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1CANADAPHONE : 905 - 831 - 6333FAX : 905 - 831 - 6936RadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONS AND SERVICE TOOLTECHNICAL SPECIFICATIONSFM TUNER SECTION (SR ONLY) Frequency Rang

17、e .87.5 - 108.0 MHz Usable Sensitivity .IHF 1.8 V/16.4 dBf Signal to Noise Ratio .Mono/Stereo 76/72 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 Level.1 kHz, 40 kHz Dev 800 mV(/K/N) .1 kHz,

18、75 kHz Dev 800 mV(/U)AM TUNER SECTION (SR ONLY) Frequency Range . 531 - 1602 kHz (/K/N) Frequency Range .520 - 1710 kHz (/U) Signal to Noise Ratio .50 dB Usable Sensitivity.Loop 400 V Distortion. 400 Hz, 30 % Mod. 0.5 % (/K/N) .1 kHz, 30 % Mod. 0.5 % (/U) Selectivity. 18 kHz 70 dB (/K/N) . 20 kHz 70

19、 dB (/U)AUDIO SECTION Power Output (20 Hz - 20 kHz/THD=0.08%) 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 Input

20、Sensitivity/Impedance. 168 mV/ 47 kohms Signal to Noise Ratio(Analog Input / 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 (/F/U) .NTSC/PAL (/K/N) Input Level/Impedance.1 Vp-p

21、/75 ohms Output Level/Impedance.1 Vp-p/75 ohms Video Frequency Response. 5 Hz to 10 MHz ( 3 dB) (/K/N) .5 Hz to 8 MHz ( 1 dB) (/U) Component Video Frequency Response.5 Hz to 40 MHz ( 3 dB) (/K/N) S/N.60 dBGENERAL Power Requirement .AC 100 V 50/60 Hz (/F) . AC 230 V 50 Hz (/K/N) .AC 120 V 60 Hz (/U)

22、Power Consumption.480 W Weight.28.9 lbs (13.1 Kg) (/K/N/U) .14.7 Kg (/F)ACCESSORIES Remote Control Unit RC7300SR.1 AA-size batteries. 2 FM Antenna (SR ONLY).1 AM Loop Antenna (SR ONLY) .1 AC Cable.1 (/F/K/N)Specifi cations subject to change without prior notice.SERVICE TOOLUpdated of the CPU and DSP

23、 DISC .*SR7300CDR(The disc is regarding when exchanged in QU01.)2The relation between the selected surround mode and the input signalThe surround mode is selected with the surround mode buttons on SR7300/SR7300F/PS7300 or the remote control unit. However, the sound you hear is subject to the relatio

24、nship between the selected surround mode and input signal. That relationship is as follows;3Remark : Bass signal output from Sub Woofer terminal for SR7300 / SR7300F / PS7300*Stereo decode : SPK SETUP - BASS MIX : BOTH setSPK setup SubWoofer Output by Decoded modeSub FrontCenterSurr.Surr.BDD EXDolby

25、(AC-3 2ch)PL ,Neo6CSStereoVirtualWooferL/R(L/R)DTS mES,dES DTS, DTS96/24(PCM:Auto )(Main spk L fix)YesLargeLargeLargeLargeLFELFEnoneL+RL+Rno outputSmallLFE+SbNoneno suuround modeSmallLargeLFE+SL+SRLFE+SL+SRSmallLFE+SL+SR+SbNoneno suuround modeNone(prohibit)no suuround modeLFE SmallLargeLargeLFE+CLFE

26、+CCL+RL+Rno outputSmallLFE+C+SbNoneno suuround modeSmallLargeLFE+C+SL+SRLFE+C+SL+SRSmallLFE+C+SL+SR+SbNoneno suuround modeNone(prohibit)no suuround modeLFE+CNoneLargeLargeLFELFEnoneL+RL+Rno outputSmallLFE+SbNoneno suuround modeSmallLargeLFE+SL+SRLFE+SL+SRSmallLFE+SL+SR+SbNoneno suuround modeNone(pro

27、hibit)no suuround modeLFESmallLargeLargeLargeLFE+L+RLFE+L+RL+RL+RL+Rno outputSmallLFE+L+R+SbNoneno suuround modeSmallLargeLFE+L+R+SL+SRLFE+L+R+SL+SRSmallLFE+L+R+SL+SR+SbNoneno suuround modeNone(prohibit)no suuround modeLFE+L+RSmallLargeLargeLFE+L+R+CLFE+L+R+CL+R+CL+RL+Rno outputSmallLFE+L+R+C+SbNone

28、no suuround modeSmallLargeLFE+L+R+C+SL+SRLFE+L+R+C+SL+SRSmallLFE+L+R+C+SL+SR+SbNoneno suuround modeNone(prohibit)no suuround modeLFE+L+R+CNoneLargeLargeLFE+L+RLFE+L+RL+RL+RL+Rno outputSmallLFE+L+R+SbNoneno suuround modeSmallLargeLFE+L+R+SL+SRLFE+L+R+SL+SRSmallLFE+L+R+SL+SR+SbNoneno suuround modeNone

29、(prohibit)no suuround modeLFE+L+RNoneNo output4DTS was introduced in 1994 to provide 5.1 channels of discrete digital audio into home theater systems.DTS brings you premium quality discrete multi-channel digital sound to both movies and music.DTS is a multi-channel sound system designed to create fu

30、ll 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 master recordings to neighborhood and home theaters.Now, every moviegoer can hear the sound exactly as the movie-maker intended.DTS can be

31、 enjoyed in the home for either movies or music on of DVDs, LDs, and CDs.“DTS” and “DTS Digital Surround” are registered trademarks of Digi-tal Theater Systems, Inc.The advantages of discrete multichannel systems over matrix are well known.But even in homes equipped for discrete multichannel, there

32、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 analog television broadcasts.The typical matrix decoder of today derives a center channel and a mono surround channel from two-channel matri

33、x 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 can be disappointing to users accustomed to discrete multichan-nel.Neo 6 offers several important improvements as follow,. Neo 6 provides u

34、p to six full-band channels of matrix decoding from stereo matrix material. Users with 6.1 and 5.1 systems will derive six and fi ve separate channels, respectively, corresponding to the standard home-theater speaker layouts. Neo 6 technology allows various sound elements within a channel or channel

35、s to be steered separately, and in a way which follows naturally from the original presentation. Neo 6 offers a music mode to expand stereo nonmatrix recordings into the fi ve- or six-channel layout, in a way which does not diminish the subtlety and integrity of the original stereo recording.DTS-ES

36、Extended Surround is a new multi-channel digital signal format developed by Digital Theater Systems Inc. While offering high compatibility with the conventional DTS Digital Surround format, DTSES Extended Surround greatly improves the 360-degree sur-round impression and space expression thanks to fu

37、rther expanded surround signals. This format has been used professionally in movie theaters since 1999.In addition to the 5.1 surround channels (FL, FR, C, SL, SR and LFE), DTS-ES Extended Surround also offers the SB (Surround Back) channel for surround playback with a total of 6.1 channels. DTS-ES

38、Extended Surround includes two signal formats with differ-ent surround signal recording methods, as DTS-ES Discrete 6.1 and DTSES Matrix 6.1.“DTS”, “DTS-ES Extended Surround” and “Neo:6” are trademarks of Digital Theater Systems, Inc.The stereo CD is a 16-bit medium with sampling at 44.1 kHz. Pro-fe

39、ssional audio has been 20- or 24-bit for some time, and there is increasing interest in higher sampling rates both for recording and for delivery into the home. Greater bit depths provide extended dynamic range. Higher sampling rates allow wider frequency response and the use of anti-alias and recon

40、struction fi lters with 2. TECHNICAL DESCRIPTIONmore favorable aural characteristics.DTS 96/24 allows for 5.1channel sound tracks to be encoded at a rate of 96kHz/24bits on DVD-Video titles.When DVD-video appeared, it became possible to deliver 24-bit, 96 kHz audio into the home, but only in two cha

41、nnels, and with serious limitations on picture. This capability has had little use.DVD-audio allows 96/24 in six channels, but a new player is needed, and only analog outputs are provided, necessitating the use of the D/A converters and analog electronics provided in the player.DTS 96/24 offers the

42、following:1.Sound quality transparent to the original 96/24 master.2.Full backward compatibility with all existing decoders. (Existing decoders will output a 48 kHz signal) 3.No new player required: DTS 96/24 can be carried on DVD-video, or in the video zone of DVD-audio, accessible to all DVD playe

43、rs. 4.96/24 5.1-channel sound with full-quality full-motion video, for music programs and motion picture soundtracks on DVD-video.Dolby Digital identifi es the use of Dolby Digital (AC-3) audio coding for such consumer formats as DVD and DTV. As with fi lm sound, Dolby Digital can provide up to fi v

44、e full-range channels for left, center, and right screen channels, independent left and right sur-round channels, and a sixth ( “.1”) channel for low-frequency effects.Dolby Surround Pro Logic II is an improved matrix decoding tech-nology that provides better spatiality and directionality on Dolby S

45、ur-round program material; provides a convincing three-dimensional soundfi eld on conventional stereo music recordings; and is ideally suited to bring the surround experience to automotive sound. While conventional surround programming is fully compatible with Dolby Surround Pro Logic II decoders, s

46、oundtracks will be able to be encoded specifi cally to take full advantage of Pro Logic II playback, including separate left and right surround channels. (Such material is also compatible with conventional Pro Logic decoders.)Dolby Digital EX creates six full-bandwidth output channels from 5.1- chan

47、nel sources. This is done using a matrix decoder that derives three surround channels from the two in the original record-ing. For best results, Dolby Digital EX should be used with movies soundtracks recorded with Dolby Digital Surround EX.Manufactured under license from Dolby Laboratories. “Dolby”

48、, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laborato-ries.Circle Surround II (CS-II) is a powerful and versatile multi-channel technology. CS-II is designed to enable up to 6.1 multi-channel sur-round sound playback from mono, stereo, CS encoded sources and other matrix encoded so

49、urces. In all cases the decoder extends it into 6 channels of surround audio and a LFE/subwoofer signal. The CS-II decoder creates a listening environment that places the listener “inside” music performances and dramatically improves both hi-fi audio conventional surround-encoded video material. CS-

50、II provides composite stereo rear channels to greatly improve separa-tion and image positioning adding a heightened sense of realism to both audio and A/V productions.CS-II is packed with other useful feature like dialog clarity (SRS Dialog) for movies and cinema-like bass enrichment (TruBass). CS-I