Marantz-PS7002v3-avr-sm 电路图 维修手册.pdf

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1、Part no. 90M35CW855030 First Issue 2009.10 X0446V02DM/DG0910Copyright 2009 D 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535; 7,003,467 and analog television broadcasts. The typical matrix decoder of today derives a center channel and a mono surround channel from two- channel matrix stereo mat

2、erial. 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 multichannel. Only receiver and controller products bearing the THX Surround EX logo, when in the

3、 THX Surround EX mode, faithfully 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 p

4、rogram dependent and may or may not 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. THX Select2 Before any home theater component can be THX Select2 certified, it must pas

5、s a rigorous series of quality and performance tests. Only then can a product feature the THX Select2 logo, which is your guarantee that the Home Theater products you purchase will give you superb performance for many years to come. THX Select2 requirements defi ne hundreds of parameters, including

6、power amplifi er performance, and pre-amplifier performance and operation for both digital and analog domains. THX Select2 receivers also feature proprietary THX technologies (e.g., THX Mode) which accurately translate movie soundtracks for home theater playback. Neural SurroundTM, THX Technologies

7、has been chosen as the offi cial surround sound broadcast format for XM Satellite Radios “XM HD Surround” and other leading FM/HD radio stations in the USA and worldwide. Neural Surround, THX Technologies delivers the rich envelopment and discrete image detail of surround sound in a format 100% comp

8、atible with stereo. Neural Surround, THX Technologies draws the brains attention to sonic details in musical instruments, vocals and ambience that are typically masked by other playback systems. This allows the listener to fully experience the richness and subtleties in recorded performance as never

9、 before for both surround encoded material and regular stereo material such as CDs or digital media players. Neural Surround, THX Technologies is enabling the second surround sound revolution, bringing surround directly to your ears! SR7002-8002_U_01_ENG 1_3.indd 407.8.24 1:14:42 PM 7 Neo:6 offers s

10、everal 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 fi ve separate channels, respectively, corresponding to the standard home-theater speaker layouts. Neo:6 technology

11、allows various sound elements within a channel or channels 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 subtle

12、ty and integrity of the original stereo recording. dts Digital Surround ES DTS-ES Extended Surround is a new multichannel digital signal format developed by Digital Theater Systems Inc. While offering high compatibility with the conventional DTS Digital Surround format, DTS- ES Extended Surround gre

13、atly improves the 360- degree surround impression and space expression thanks to further 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

14、 (Surround Back) channel for surround playback with a total of 6.1 channels. DTS-ES Extended Surround includes two signal formats with different surround signal recording methods, as DTS- ES Discrete 6.1 and DTS-ES Matrix 6.1. dts Digital Surround 96/24 The stereo CD is a 16-bit medium with sampling

15、 at 44.1 kHz. Professional 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

16、anti- alias and reconstruction fi lters with more 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 chan

17、nels, 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

18、 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

19、 players. 4. 96/24 5.1-channel sound with full-quality full- motion video, for music programs and motion picture soundtracks on DVD-video. DTS-HD Master Audio is capable of delivering audio that is a bit-for-bit identical to the studio master. DTS-HD Master Audio delivers audio at super high variabl

20、e bit rates -24.5 mega-bits per second (Mbps) on Blu-ray discs and 18.0 Mbps on HD-DVD - that are signifi cantly higher than standard DVDs . This bit stream is so “fast” and the transfer rate is so “high” that it can deliver the Holy Grail of audio: 7.1 audio channels at 96k sampling frequency/24 bi

21、t depths that are identical to the original. With DTS-HD Master Audio, you will be able to experience movies and music, exactly as the artist intended: clear, pure, and uncompromised. Manufactured under license under U.S. Patent #s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535 5,

22、956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535 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

23、 Pro Logic II decoders, soundtracks will be able to be encoded specifi cally to take full advantage of Pro LogicII 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 outpu

24、t channels from 5.1-channel sources. This is done using a matrix decoder that derives three surround channels from the two in the original recording. For best results, Dolby Digital EX should be used with movies soundtracks recorded with Dolby Digital Surround EX. About Dolby Pro Logic IIx Dolby Pro

25、 Logic IIx technology delivers a natural and immersing 7.1-channel listening experience to the home theater environment. A product of Dolbys expertise in surround sound and matrix decoding technologies, Dolby Pro Logic IIx is a complete surround sound solution that maximizes the entertainment experi

26、ence from stereo as well as 5.1-channel encoded sources. Dolby Pro Logic IIx is fully compatible with Dolby Surround Pro Logic technology and can optimally decode the thousands of commercially available Dolby Surround encoded video cassettes and television programs with enhanced depth and spatiality

27、. It can also process any high-quality stereo or Advanced Resolution 5.1-channel music content into a seamless 6.1- or 7.1-channel listening experience. The Dolby Headphone technology provides a surround sound listening experience over headphones. When listening to multichannel content such as DVD m

28、ovies over headphones, the listening experience is fundamentally different than listening to speakers. Since the headphone speaker drivers are covering the pinna of the ear, the listening experience differs greatly from traditional speaker playback. Dolby utilizes patented headphone perspective curv

29、es to solve this problem and provides a non-fatiguing, immersive, home theater listening experience. Dolby Headphone also delivers exceptional 3D audio from stereo material. Dolby Virtual Speaker is a technologycertified by Dolby Laboratories that creates a virtualized surround sound experience from

30、 two speakers using a multichannel Dolby Digital source. Additionally, Dolby Virtual Speaker can simulate the surround sound effect produced by Dolby Pro Logic or Dolby Pro Logic II. Dolby Virtual Speaker retains all the original Multichannel audio information and provides the listener with the sens

31、ation of being surrounded by additional speakers. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol are trademarks of Dolby Laboratories. SR7002-8002_U_01_ENG 1_3.indd 507.8.24 1:14:43 PM 9 Dolby TrueHD is Dolbys next-generation lossless

32、 technology developed for high-defi nition disc-based media. Dolby TrueHD delivers tantalizing sound that is bit-for-bit identical to the studio master, unlocking the true high-definition entertainment experience on next-generation discs. When coupled with high-defi nition video, Dolby TrueHD offers

33、 an unprecedented home theater experience that lets you enjoy sound as stunning as the high-defi nition picture. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol are trademarks of Dolby Laboratories. Dolby Digital Plus is a highly sophi

34、sticated and versatile audio codec based on Dolby Digital and designed specifically to adapt to the changing demands of future audio, video delivery, and audio storage systems while simultaneously retaining backwards compatibility with the existing Dolby Digital 5.1-channel home theater systems in u

35、se today. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol are trademarks of Dolby Laboratories. Circle Surround II (CS-II) is a powerful and versatile multichannel technology. CS-II is designed to enable up to 6.1 multichannel surround

36、 sound playback from mono, stereo, CS encoded sources and other matrix encoded sources. 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 dramati

37、cally improves both hi-fi audio conventional surround-encoded video material. CS-II provides composite stereo rear channels to greatly improve separation 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 dialo

38、g clarity (SRS Dialog) for movies and cinema-like bass enrichment (TruBass). CS-II can enable the dialog to become clearer and more discernable in movies and it enables the bass frequencies contained in the original programming to more closely achieve low frequenciesovercoming the low frequency limi

39、tations of the speakers by full octave. Circle Surround II, Dialog Clarity, TruBass, SRS and symbol are trademarks of SRS Labs, Inc. Circle Surround II, Dialog Clarity and TruBass technology are incorporated under license from SRS Labs, Inc. HDCD (High Definition Compatible Digital ) is a patented p

40、rocess for delivering on Compact Disc the full richness and details of the original microphone feed. HDCD encoded CDs sound better because they are encoded with 20-bits of real musical information as compared to 16-bits for all other CDs. HDCD overcomes the limitation of the 16-bit CD format by usin

41、g a sophisticated system to encode the additional four bits onto the CD while remaining completely compatible with the CD format. When listening to HDCD recordings, you hear more dynamic range, a focused 3-D sound stage, and extremely natural vocal and musical timbre. With HDCD, you get the body, de

42、pth and emotion of the original performance not a fl at, digital imitation. HDCD system manufactured under license from Microsoft. This product is covered by one or more of the following: In the United States 5,479,168 5,638,074 5,640,161 5,808,574 5,838,274 5,854,600 5,864,311 5,872,531 and in Aust

43、ralia 669,114 with other patents pending. HDMI, the and High-Defi nition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. SR7002-8002_U_01_ENG 1_3.indd 507.8.24 1:14:43 PM 10 XM Satellite Radio Ready The XM name and related logos are registered trademarks of XM Sat

44、ellite Radio Inc. XM HD Surround uses Neural SurroundTM technology to achieve optimal surround sound from XM radio. There are several factors that can degrade the sound from even the best loudspeakers in a listening room. One of the most important is the interaction of sound from the loudspeakers wi

45、th large surfaces such as walls, the fl oor, and the ceiling in the room. Even with careful loudspeaker placement and acoustical treatments, there are signifi cant problems that are caused by room acoustics. These include refl ections from nearby surfaces and standing waves that are created between

46、large parallel surfaces in the room. In a home theater the situation is further complicated because there are several listening locations. The effects of room acoustics on the sound arriving at each persons ears are very different and the result is a listening experience that is degraded in a differ

47、ent way for every person in the room. It is not uncommon to have variations in two adjacent seats that are as large as 10 dB, particularly in the frequency range below 250 Hz. SR7002-8002_U_01_ENG 1_3.indd 607.8.24 1:14:43 PM The solution to this problem is to apply room correction after precisely m

48、easuring how each loudspeaker interacts with the room. Because the room causes variations in the frequency response of the loudspeakers that are so large from seat to seat, it is important to measure each loudspeaker at several locations in the listening room. This should be done even if there is on

49、ly one listener. Measurement at a single location is not representative of the acoustical problems in the room and will in most cases, degrade overall performance. Audyssey MultEQ is the only technology that can achieve room correction for multiple listeners in a large listening area. It does so by combining the data collected at several points in the room from each loudspeaker and then applying correction that minimizes the acoustical effects of the room and is matched to the frequency resolution of human perception (known as psychoacousti