JVC RX-D401 User's Manual
Contents
1. oo 9 ai 0 o 0 lt 61 gt VCR DBS IN JVC STEREO RECEIVER MODEL NO 07015 8 USTED 120V 60Hz 1204 160VA CASUS SO SEE BOTTOM VCR DBS IN JVE STEREO RECEIVER MODEL NO RX D4018 AC 120V 60Hz 150 200A USTED 4643 US Auxo vIDEO EQUPMENT OUT REC DVR DVD IN DVR DVD IN COMPONENT VIDEO Rear Panel RX D702B USB WIRELESS MES ID LEARNING CAUTION SPEAKER IMPEDANCE 60 160 e e e RIGHT RIGHT SURROUND BACK SPEAKERS WARNING SHOCK HAZARD DO NOT OPEN MONITOR OUT AV DIGITAL IN 1 DVR DVD 2 08 DIGITAL OUT 3 VCR PCM STREAM VCR OUT REC INCPLAY Victor Company of Japan Limited MADE IN INDONESIA RX D402B RX D401S MONITOR OUT CAUTION RISK OF ELECTRIC SHOCK DIGITAL IN DIGITAL OUT DO NOT OPEN COMPULINK m 2085 o m _ CAUTION SPEAKER gt IMPEDANCE 69 160 SURROUND SPEAKERS Lv21924 00XA AM LOOP ANTENNA SUBWOOFER FM 750 e AM EXT COAXIAL LEFT RIGHT LEFT CENTER SPEAKER FRONT SPEAKERS AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR 1V21924 089A SUBWOOFER _ OUT SPEAKERS CTRIQUE NE PAS OUVRIR 62 JVC The Perfect Experience m2. Perfect Experience B A RX D702 AUDIO VIDEO CONTROL RECEIVER CC CONVERTER SETTING ADJUST X D 02 TECHNICAL GUIDE SURROUND Aa Vt TECHNOLOGY ly braid Feedback Digital Amplifier DVD MULTI DVR DVD VCR DBS USB 6 8 AUTO MODE sun um 1 1 E TTA DIGITAL Ox PAO LOGIC De High Power 7 1 Channel A V Control Receivers Host of Digital Technologies Applied for Superior Sound Pictures and Style JVC now offers the latest generation of AV control receivers RX D702 RX D402 and RX D401 which feature a sleek profile to complement today s and future home cinema systems But what gears the units for the future home cinema is not only the stylish design Despite the slim dimensions the units are ready to deliver powerful high quality sound from various sources including PC music files and provide superior picture quality too What s more their expanded connectivity lets you easily connect the units with your PC and even permits HDMI connections the latest interface for transmitting audio video signals Enabling these and many other feats are a host of advanced digital technologies newly incorporated into the units In this technical guide you will see the details of those technologies and find how the advanced A V receivers will upgrade your digital home theater systems Design Concepts High Quality Pictures Advanced Technol
3. ee e 2 8 ________ ee e ee ee 2 2 20 2 e 2 2 efoto 9 e e e ee ee Qu Cy ee e ee ee e e e e 8 ee s T o o OUO 3 29 e ge 6 9 e e 74 4 d RS ee ee ee ee gt ee ee ee ee ee e e e e e e 2 ee G P 42 Virtual Repositioning of the Center Speaker with Center Channel Alignment lt 41 gt JVC exclusive DSP Smart Surround Setup Setting up a home theater can be time consuming and even confusing Normally you have to check which speaker channels front center surround and surround back you have installed the distance of each speaker from the listening position and the level of each speaker But with JVC s Smart Surround Setup Version 3 0 it takes just seconds to set up the acoustic environment of your home theater Clap your hands and the delay times of all channels are set individually and the level of each speaker is automatically trimmed optimize
4. 2c pcm ev 77 2 e _ uvece _ Multi Channel DAP _ 2 _ _ _ e _ ___ Teater 02 e _ _ Pe eo pecus e e e e 2 v _ eo Je q worm e e ev 30 7 e e e e e e e e se e e When the SURR BACK SPK setting is ON the DAP performs 7 channel processing outputting reverberation components to Surround Back channels Kramar Also applies to RX D401 lt 37 gt JVC exclusive DSP 5 Band Graphic Equalization PA A L 402 Also applies to SEU A graphic equalizer lets you adjust the levels of The Aureus chip ensures high speed processing center frequencies for equalization while it executes various decode An analog equalization circuit is built from resistors and processing Dolby Digital dts etc capacitors therefore noise and phase reversal are ET inevitable A digital equalization circuit performs its 2 ipiis function in the entirely digital domain Clarity and 2 2 consistent
5. The CC Converter is an adaptation compressed data formats of this technology for compressed music Therefore it improves the sound quality Music distribution over the of both hi fi sources such as CD and DVD Linear Mode and compressed music Internet silicon audio using formats including MP3 and WMA Compression Mode benefiting a wide range of compact IC cards and digital digital audio contents broadcast by satellite all these formats take advantage of audio compression technology This means there are two diverging trends in digital audio higher fidelity u and higher compression BEEN 6 Sound Formats and Media Quality vs Compression T m LINEAR Higher DVD Audio lt Sound Quality COMPRESSION MODE Jo meee e Higher 8 bit Km Compression n 8kHz 44 1kHz 176 4 192kHz lt 18 gt Converter Problems with Digital Conversion In digital audio music is processed in digital form The music played by musicians in a recording studio or a concert hall is picked up by a microphone and recorded in digital form to be released for sale as packaged media including CD The consumers buy the CD to play on a CD player the recorded music is converted from digital to analo
6. lt 49 gt Hybrid Feedback Digital Amplifier Ver One Chip Solution with JCV8015 Also applies to RX D401 The Hybrid Feedback Digital Amplifier Ver 111 features use of a new IC dubbed 8015 This superior device developed by JVC contains all the circuits necessary for digital signal processing including dual audio input circuits the Hybrid Feedback oignal Processing Circuit and PWM modulators In addition to allowing a drastic reduction in parts and a smaller footprint JCV8015 comes with the following features i Superior operational amp for low distortion and low noise High precision PWM modulator featuring synchronization by external clock MBuilt in 2 5V regulator separated from analog GND lt 50 gt Hybrid Feedback Digital Amplifier Ver 5 JCV8015 Benefits 1 Operational Amp Also applies to RX D401 Superior Operational Amp for Low Distortion and Low Noise High Slew Rate The operational amp comes with a higher slew rate two times higher than the previous types of devices to eliminate instantaneous cross modulation distortion Interference Free JCV8015 Layout of Parts and Devices p m m The operational amp features a symmetrical layout of parts and devices which are completely separated PAD L ch out Selecting for left and right channels This prevents muere sn symmetrical signal interferen
7. All the units feature high quality coils incorporated in the output low pass filter which help deliver superior sound IRS20124 High performance Driver IC incorporated in the digital amplifiers of all the units lt 54 gt Hybrid Feedback Digital Amplifier Ver Comparison of Speaker Driveability Also applies to RX D401 Usually speaker impedance fluctuates according to the frequencies of audio signals This frequency response of the speaker in turn fluctuates the levels of audio signals How effectively an amplifier can control these fluctuations is called speaker driveability RX D702 Output Level dB The feedback processes of the Hybrid Feedback Digital Amplifier significantly improve the speaker driveability retaining the same output level across the frequencies Non Feedback Amp 0 90 100 500 1k 3k 5k 10k 20k Impedance ohms o 100 41k 10k 20k Speaker Impedance with a Typical 2 Way Speaker 55 Hybrid Feedback Digital Amplifier Ver T H D Comparison of Digital Amplifiers Also applies to RX D401 10 ROT pe TL Non Feedback Amp 0 004 THD N 0 01 UE Hybrid Feedback Digital Amp RX D702 0 001 0 01 0 1 1 10 100 Output Power W 6 lt 56 gt Supplementary Information RX D402B Aud
8. Benefits 3 2 5V Regulator Also applies to RX D401 Use of the built in 2 5V regulator prevents digital noise interference to analog GND Improved VCC Analog Sound Quality Analog Signals Analog Circuits Digital Circuits NJ Operational Amp PWM Use of built in 2 5V regulator separates the path 2 5V Regulator of current in digital circuits Analog GND from analog GND _VDD Digital 5V Analog Signals Analog Circuits Digital Circuits rN PWM PWM Power supply to digital circuits causes the current to interfere with analog GND Analog GND which generates noise 53 gt Hybrid Feedback Digital Amplifier Ver Quality Parts for Superior Sound Reproduction The superior technologies applied for the digital amp combine to lower the total harmonic distortion by a specific ratio see the following pages for details This means when the distortion of input signals are lower that of output signals are lower than when input signals have higher distortion This is why JVC engineers applied a wide range of quality parts for the A V receivers These devices ensure even better sound quality by sending low distortion signals to the Hybrid Feedback Digital Amplifier Ver 25K3770 01MR IRFB4212 Power MOSFET used for the 110W digital amplifier of the RX D402 D401 Power MOSFET used for the 150W digital amplifier of the RX D702 ETQA15
9. Logic 11 DTS DTS ES DTS NEO 6 DTS 96 24 DVD Multi Channel Audio Compatible Product Highlights Hybrid Feedback Digital Amplifier Ver III for single cable all digital transmission of audio and video signals Wireless Connection with PC enjoy playback of music files from PC CC Converter 2 Modes Front Channels offers two modes for improving the sound quality of compressed audio and non compressed sources respectively USB Input for receiving audio signals from PC SIRIUS Input and SIRIUS Control on Remote On Screen Display Center Channel Alignment Virtual Surround Back for creating even wider sound field without a surround back speaker 3D PHONIC DAP for Multi Channel Digital Sources THEATER 1 THEATER 2 HALL 1 HALL 2 DANCE CLUB LIVE CLUB PAVILION DAP for 2 Channel Sources MONO FILM THEATER 1 THEATER 2 HALL 1 HALL 2 DANCE CLUB LIVE CLUB PAVILION ALL CH STEREO 3D Headphone 192kHz 24 bit P E M D D Converter Front Center Surround Channels Video Signal Up Conversion to HDMI for single cable output of high quality video from any input terminals Smart Surround Setup Ver 3 0 easy handclap setting up of the acoustic environment One Touch Operation DSP Digital Equalizer AV COMPU LINK Multi Brand A V STB CATV DBS Glow Remote Control lt 59 gt RX D402B Audio Video Control Receiver 7 Channel Receiver with HDMI PC Connection via USB and New Digital Amplifier Basic Fea
10. definition are its advantages m evel 8dB 2dB steps B 1 manual EQ setting for each source Response dB Response dB ET Frequency Hz lt 38 gt JVC exclusive DSP 3D Headphone In a typical listening room sound from speakers you perceive consists of three elements direct sound early reflections echoes from walls ceiling floor and reverberation These elements let you locate the sound source and recognize its size This is called Head Related Transfer Function HRTF Direct Sound dtm Reflections In developing the 3D Headphone technology JVC has applied an exclusive algorithm that divides the audio signals into the same three elements and conducts processing individually Direct Sound convolution processing This ensures that sound from headphones has the Reflections Reverberations same realism dynamism O and localization as that from Sound Frequencies Detected in multi channel speakers a Typical Listening Room Also applies to RX D401 Early Reflection Processing Reverberation Processing Block Diagram of Convolution Processing lt 39 gt JVC exclusive DSP Ul Midnight Mode applies to RX D401 OUTPUT Midnight Mode Processing Frequency Frequency Frequencies of Input Output Audio Signals The DSP divides input signals into three bands LOW MID HIGH and processes the signals so that low level sou
11. is Te Problem A high frequency analog signal cannot be accurately 21 one of its applications to improve the sound recreated by A D and D A conversion 2 quality of not only pure audio sources but CC Converter 22 also compressed files such as dts Dolby Digital and MP3 The CC Converter lets you experience a sound that is truer to the original master than ever With the RX D702 front L R channels are processed by the CC x Bit Expansion Section Frequency Conversion Section Range Expansion Section 24 CC Converter How its workings differ from other high bit upsampling systems Converter P E M D D Converter D D Converter 27 Noise Shaping Response Noise Spectrum 192kHz 24 bit and 96kHz 24 bit A D Converters RX D702 192kHz 24 bit and 96kHz 24 bit A D Converters 0402 0401 Converter Background x Digital audio started with JVC is not only a hardware maker but also a software producer as well so there Compact Disc and has since has been a close collaboration between the hardware engineers and studio given birth to such super engineers for all aspects of digital sound production K2 Processing Technology high fidelity formats as DVD is one of the many improvements developed by this collaboration to achieve Audio and SACD There s higher sound quality It was implemented as the Extended K2 Processing a another trend in digital audio critically acclaimed application to pure audio
12. resonance while others produce hardly any CC Converter JVC s CC Converter does not simply create and add harmonic Accurate D A conversion and reproduction of the recreated components It computes the data that was lost during the D A data requires a process to expand the frequency range of the conversion by taking advantage of JVC s exclusive algorithms analog signals The frequency range expansion of the analog This means the CC Converter has the processing power to signals to beyond 20kHz results in improved music data for recreate the original signal that should have been recorded the audible range The CC Converter expands CD s frequency based on the digital signals for the audible range recorded on range fourfold to 88 2kHz using 176 4 2 44 1kHz x 4 a CD sampling frequency With DVD Video the frequency range is expanded to 96kHz while the sampling frequency is 192kHz 48kHz x 4 25 CC Converter RX D702 The figure shows the actual measured 90dB 1kHz Sine Wave Bit Expansion On 90dB 1kHz Sine Wave Bit Expansion Off waveform of a bit expanded 90dB sinusoidal signal The figure shows the frequency spectra of a music signal with the range expansion on 0702 and off With the expansion off the level is sharply reduced beyond 22kHz But with the expansion on the level is naturally extended beyond 22kHz and higher T ert for CDs DVDs etc COMPRESSION MODE Level d
13. 01 720p 10801 PCM DVD Audio DD DTS 4801 720p 10801 tT VT HDMI m FAROUDJA Speakers us gt e AP Hybrid Feedback 4 er Digital Amplifier F k 5 A RS yeu E lal TEC u cde nu IT ance Converter Conversion Outputs Component Component Video S Video S Video Deco it Composite omposite QO Composite S Video Component DCDi by FAROUDJA What is DCDi by FAROUDJA RX D402 The new A V receivers can convert video signal format to HDMI for display on a compatible monitor whether the signals are from Composite S Video or Component input In this process the unit converts interlaced pictures to progressive ones a process known as IP conversion using DCDi by FAROUDJ A a renowned high performance device It features a host of advanced technologies for noise reduction and reproduction of high definition pictures including 3D Deinterlacer Film Mode Recreates the original film frames by Video Mode Delivers pictures from video accurately blending the fields back together in sources eliminating jagged edges progressive scanning for images free of motion diagonal lines artifacts and with full vertical resolution 30 Noise Reduction Filters out the noise temporally without smearing or ghosting of 3D Cross Color Fleshtone Adaptive Suppression Noise Reduction
14. B CCC pom ON iu 20 40 50 m nw asd es 100 CC Converter ar 4 8 12 16 20 24 28 32 36 40 44 48 Frequency kHz Level Frequency Hz lt 26 gt D D Converter D D Converter The JVC exclusive D A converter turns the 192kHz 24 bit output into an analog signal with impeccable accuracy NEW D D LSI x Pulse 8f DAC 1 Generator VANS _ CH 1 P E M DAC 2 i 96kHz 24 bit 6 ch 192kHz 24 bit 2 ch CH2 Pulse L 4 Timing Generator Generator m L i Clock TER Separate Power Supply Feed Semiconductor Shielding Layer Separate Power Supply Feed lt 27 gt Y a h P E M D D Converter VISUAL PROOF Noise Shaping Response Noise Spectrum Also applies to RX D401 Noise Shaping Response Theoretical Noise Spectrum Conventional D A Converter OdB Quantization Noise Level of CD Format 44 1kHz 16 Bit o o tc Noise Level dB 2k dk Bk 12k 14k 16k 18k 20k 22 Frequency Hz Frequency kHz P E M D D Converter A Conventional 3rd Order Noise Shaper B Early VANS C New VANS MN35505 VANS JVC Advanced Noise Shaper Response dB dk 6k 10k 12k 14k 16k 18k 20k 22k Frequency Hz lt 28 gt D D Convert
15. In the bit expansion section the JVC exclusive hi fi processing generates high resolution 24 bit digital signal from a 16 bit signal The process first analyzes the 16 bit digital signal to deduce the original analog signal before A D conversion and then applies hi bit expansion to smooth the signal waveform What s more the process ensures that the 24 bit signal preserves the same sound energy of the 16 bit digital signal Hi bit Expansion Processing Hi bit Calculation 16 bit E s n oy end x 24 we 16 bit Digita ze Digital d Wave Hi bit Digital Signal Analysis Deduction Smoother Signal Conversion with Sound Energy Preservation lt 29 Converter The frequency conversion section doubles or quadruples the sampling frequency for playback of high frequency signals that a following stage generates The range expansion section applies the JVC exclusive range expansion processing to compensate for the conversion distortion that occurs when the analog signal is converted into a digital signal The human ear it is said cannot hear frequencies above 20kHz but removing frequencies higher than 20kHz changes the waveform of audible frequencies resulting in a signal that sounds different from the original range expansion section overcomes this problem by deducing the original waveform of a signal before A D and D A conversion and modifying the signal s waveform accordi
16. Prevents leakage of color Controls noise reduction Information to chroma coefficient to deliver optimum channels human flesh color 2 Visual Proof e Visual Proof moving objects in the image 2 Visual Proof 9 DCDi by FAROUDJA ems VISUAL PROOF c Also applies to RX D401 3D Deinterlacer Cross Color Suppression A unique algorithm that identifies all the moving While composite signals are decoded edges in a scene and adjusts the angle of Jagged Edges on high frequency luma information leaks into interpolation at each pixel so that the interpolation Diagonal Lines the chroma channel generating noise that always follows the edge instead of crossing it Smooth diagonal lines are also looks like flashing colors or rainbow eliminating staircasing or jagged edge artifacts delivered by the 3D Deinterlacer patterns Yq W V C Smooth Diagonal Edges The Cross Color Suppression effectively eliminates the noise with high performance chroma processing lt 10 DCDi by FAROUDJA Fleshtone Adaptive Noise Reduction Noise reduction applied on overall picture may cause an adverse effect unnatural flesh color The Fleshtone Adaptive NR detects flesh color contained in a picture and controls noise reduction coefficient to deliver optimum human flesh color Red e Cr Magenta e Fleshtone CrMa Yellow e CbCrdiff Cb Corner Cutouts Defi
17. best movie theater surrounded by an array of speakers to the left and right and behind Then they would feel enveloped in sound with a helicopter for instance moving left to right or front to back 5 1 channel Playback JVC exclusive DSP as implemented by the TI Aureus chip embodies the algorithms of sound field recreation that are developed specifically for advanced home theater receivers The sound field patterns are created on the basis of the computer sound field simulation technology developed by a leading concert hall construction company Patterns of reflections are calculated based on the data of the sound fields of the concert halls theaters and movie theaters 7 Channel DAP Playback To verify simulated halls the contractor creates a precision scaled down miniature hall using the same materials for walls seats etc in the same shape A second larger scaled down model will then be made to further refine the data 33 JVC exclusive DSP The figure shows the paths of the sound rays as they propagate from a sound source red black and brown balls to the receiver blue ball The DSP calculates the properties of a reflection sound time delay and direction from the paths of the sound rays The simulation computations it does for 7 1 channel surround are different from those for 5 1 channel surround or for stereo This means the DSP does optimal simulation computations according to the configura
18. c Approx 600msec Our Outstanding Points Compared with Other Wireless Products Wireless LAN Optional Wireless LAN Optional PCMCIA Card Slot for still pictures from digital cameras Exclusive Network Only Control with OSD Movie Music Pictures JVC Advantages optional device Receives signals CC Converter improves the sound required from any quality of compressed music files including Mac from PC lt 15 gt USB Connection Transmission of Stereo Audio Signals from PC Also applies to RX D401 O Note PC or Desk Top PC USB Connection 1 Corresponds to 16 bit 32kHz 44 1kHz 48kHz sampling rates for superior sound 2 Permits playback of any music files that can be played on the connected PC regardless of the software Windows Media Player iTunes etc 3 All digital transmission gt No D A or A D conversion 16 3 Converter JVC Original Technology for Superior Sound K2 Processing is the result of a close CC Converter collaboration among JVC studio engineers Background 18 producers and hardware engineers Problems with Digital Conversion 19 embodying the elaborate algorithms for a Problem An analog signal of a very faint strength cannot be sound quality that is close to the master by accurately recreated by A D and D A conversion 1 20 professional standards The CC Converter
19. ce Layout between the two channels see the figure at right Selecting Max Modulation m E lt gt Hybrid Feedback Digital Amplifier Ver LI JCV8015 Benefits 2 PWM Modulator External Clock Also applies to RX D401 High Precision PWM Modulator High Precision Triangular Waves Ultra High Speed Comparator Distortion or irregular angles of the triangular waves Comparison of audio signals with the triangular waves lower the precision of PWM signals which results in is done by comparator The JVC amp features an lower sound quality The JCV8015 uses high precision ultra high speed comparator This prevents the triangular waves to prevent the problem possible delay of PWM signals with respect to audio signals which causes distortion Ultra High Speed Comparator Input Audio Signals High Precision Triangular Waves Synchronization by an External Clock Slight gap of frequencies among channels causes specific noise To prevent this the JVC amplifier uses an external clock which synchronizes the operations of all channels Noise is also generated when the unit receives AM signals whose frequency overlaps that of audio signals The external clock detects this and automatically modifies the audio signal frequency of all the channels simultaneously thus preventing the noise generation lt 52 gt Hybrid Feedback Digital Amplifier Ver JCV8015
20. d for your listening position You can even fine tune the settings if you prefer Setup information is displayed on screen for easy confirmation SL od Om Om exl SBE lt 42 gt Hybrid Feedback Digital Amplifier JVC exclusive Hybrid Feedback Digital Amplifier enables a lot more than the compact dimensions of the A V receivers Featuring dual analog feedback and digital feedback circuits this device significantly brushes up the input signals which ensures significantly lowered total harmonic distortion to 0 004 and superior speaker driveability The result is high quality sound matching that from a high grade analog amp The RX D702 and RX D402 D401 come with an upgraded Ver IIl device which incorporates wide range of technological improvements for even better sound quality Hybrid Feedback Digital Amplifier Background What is PWM Problems of Digital Amplifiers Evolution of Hybrid Feedback Digital Amplifier 1 Evolution of Hybrid Feedback Digital Amplifier 2 Evolution of Hybrid Feedback Digital Amplifier 3 Hybrid Feedback Digital Amplifier Ver Ill Technological Improvement for Even Better Sound Low Voltage Power Supply One Chip Solution with JCV8015 JCV8015 Benefits 1 Operational Amp JCV8015 Benefits 2 PWM Modulator External Clock JCV8015 Benefits 3 2 5V Regulator Quality Parts for Superior Sound Reproduction Comparison of Speaker Dri
21. d their interior materials and the presence absence of an data is recorded This is the approach adopted by other audience Because this data is not based on actual home theater receiver processor manufacturers measurements that could be affected by the measuring equipment used or its inaccuracy it allows the accurate recreation of the frequency response and even the direction of each reflection But measuring the sound field of an existing environment entails inaccuracies in the methodology For instance microphones have different characteristics from model to model and from unit to unit The measured data gives clues to time and level of a sound but not to the direction Impulse RESPON Measurements are made only at selected spots Softest sounds are not captured accurately Direct Sound Level Early Reflections Time Reverberations Time Series Analysis of Simulated Hall Acoustics 35 JVC exclusive DSP DAP Modes 1 Also applies to RX D401 THEATER1 THEATER 2 LIVE CLUB Capacity 6 500m Seats Approx 600 Capacity 2 000m Seats Approx 300 Capacity 400m Seats 70 Reverberation 1 23 sec Reverberation 0 55 sec Reverberation 0 35 sec DANCE CLUB PAVILION Capacity 2 200m Seats 240 Capacity 549 700m Reverberation 0 55 sec Reverberation 5 22 sec lt 36 gt JVC exclusive DSP DAP Modes for RX D702 D402 D401 DAP Modes 2 Dolby Digital sic 2e Sich
22. ections simulated realistically More than ten years ago JVC sent engineers worldwide to measure the acoustics of famous theaters and concert halls JVC exclusive DSP embodies both the old know how and latest technologies to make you feel you are there JVC exclusive DSP Texas Instruments Floating Point DSP Aureus TMS320DA601 JVC s DSP Sound Field Analysis Ray Tracing The reason why sound field simulation by DSP produces better results than one based on actual measured environments DAP Modes 1 DAP Modes 2 5 Band Graphic Equalization 3D Headphone Midnight Mode Center Channel Alignment Smart Surround Setup 32 33 34 36 37 38 39 40 41 42 JVC exclusive DSP Texas Instruments Floating Point DSP Aureus TMS320DA601 At the heart of the RX D702 D402 D401 s DSP is new high performance Texas Instruments DSP Aureus M It s the world s fastest highest performing chip of its kind now replacing two conventional DSP chips The JVC receiver is the world s first to feature this LSI Features e 1 800MIPS or 1 350MFLOPS at 225MHz clock speed one of the highest processing power ratings on the market 32 bit 64 bit double precision accurate operations Decode formats Dolby Digital Dolby Digital EX Dolby Pro Logic IIx DTS DTS ES DTS 96 24 DTS NEO 6 Functions DAP 3D PHONIC 3D Headphone DSP Digital Equalizer Dynamic Range Control Bass Managemen
23. er ems VISUAL PROOF Digital IN Analog IN A D Converter L R DVD Audio IN 2 4 DSP Converter DSP f Aureus TE EENS L R P E M Converter P E M DD Converter Wireless TMS320DA601 Ls Rs Dolby Digital PLIIx DTS P E M HDMI Converter C LFE DAP 3D H GEQ i Digital Out SurrBackL R 29 D D Converter ems VISUAL PROOF bit and 96kHz 24 bit A D Converters R RX D402 Also applies to RX D401 Analog IN A D Converter O L R DVD Audio IN Digital IN DSP 952 Aureus DAM H TMS320DA601 Dolby Digital PLIIx DTS P E M D IBS ROMEN Ls Rs I 5 C LFE DAP 3D H GEQ D A Lil DIT Digital Out SurrBack L R lt 30 gt 4 High Performance DSP for Superior Sound Quality JVC exclusive DSP implemented by the Texas Instruments Aureus DSP simulates the acoustics of music venues In doing so it makes use of a vast amount of DSP computed data for the creation of sound field patterns that conventional processing systems based on field measured impulse responses have difficulties recreating With JVC s DSP the sound fields are reproduced most naturally with early refl
24. ersion With CDs the sampling frequency is 44 1kHz meaning the maximum frequency 1 band limited to 22 05kHz Therefore the information on the waveform for over 22 05kHz frequencies is not transmitted Unless it s sinusoidal a signal contains multiple high order harmonics So does a square wave If the input is a 1kHz square wave signal it retains its shape because much of the information on the waveform for harmonics is retained after the A D and D A conversion But if the input is a Square wave of a high frequency the converted signal presents a rounded shape because of the absence of information on high frequencies A D and D A Conversion in Frequency Domain OdB 1kHz OdB 1kHz Input Output kHz ampling OdB 20kHz Converter OdB 20kHz A Input Output 21 The CC Converter was developed to solve the problems with digital conversion by 1 increasing quantization resolution for low level signals and 2 increasing the sampling frequency for high frequency signals Because bit expansion and oversampling alone do not guarantee better sound quality the CC Converter features JVC s original advanced digital signal processing CC Converter Block Diagram Range Expansion Hi bit Expansion Section Frequency Conversion Section Section mE 2fs Digital Filter 415 Digital Filter 1 2 Decimation Bit Expansion Hi bit Smoother Input Output lt 22 gt Converter
25. g for playback through an amplifier and speakers The process of playing digital music involves analog digital conversion and digital analog conversion as shown below Process of Playing Digital Music Digital Recorder Microphone CD Player Speaker gt The sound quality of a signal depends on the following two factors when the signal is converted from analog to digital Quantization wordlength bits which determines resolution or the expression of music in the amplitude domain oampling frequency which determines the frequency response or the expression of music in the frequency domain lt 19 gt CC Converter SCLC An ofa Y faint aan cannot be accurately recreated DY A 10 and V A con ion When its level is high a 1kHz signal can produce a smooth waveform after the A D and D A conversion When the level is low however a stepped waveform results due to the limitation in the resolution of a digital signal This phenomenon occurs because digital quantization distortion increases as the levels are reduced A D and D A Conversion in Amplitude Domain OdB 1kHz OdB 1kHz Sine Wave Sine Wave D A Converter lt 20 gt sly recreated by A D and D A conversion 2 The sampling theorem says that if the sampling frequency is more than twice as high as the maximum frequency of original signal then the original signal can be retrieved by A D and D A conv
26. io Video Control Receiver 60 Multi Brand A V STB CATV DBS Glow Remote Control 61 Rear Panel 62 OSD Superimposed on Screen The RX D702 displays a wide range of OSD for Smart Surround Setup information including the Smart Surround Setup processes superimposed on your SHORT SURROUND SETUP gt monitor screen to ensure easy recognition esum and control X el SBE Setting Menu Screen Digital EQ and Bass Boost Setup SETTING MENU 3 5 PLIIXMOUIE SUBUFRNOU T CROSSOVER W MIDNIGHT SETTING MENU 1 uS ADJUST MENU 2 a SUBWOOFER YES DIGITAL EQ 63Hz SPK DIGITAR EQZeS5OHz SPK DIGETALY EQ SPK SM CODIGITAE EQUPTAKHZ SPK 8 EQ L6kHzS QU eS BASS BOOST OF DHA 7 ENTER EM SEAL SET ENTIER 61 lt 58 gt RX D702B Audio Video Control Receiver 7 Channel Receiver Featuring HDMI New Digital Amplifier and Wireless PC Connectivity Basic Features Stereo 150 watts per channel 6 ohms from 20Hz to 20kHz with 0 896 THD Surround Front 150 watts per channel 6 ohms at 1kHz with 0 8 THD Center 150 watts 6 ohms at 1kHz with 0 896 THD Surround 150 watts per channel 6 ohms at 1kHz with 0 8 THD Surround Back 150 watts per channel 6 ohms at 1 2 with 0 8 THD Dolby Digital EX Dolby Digital Dolby Pro Logic IIx Dolby Pro
27. lar waves 2 High precision triangular waves are necessary OFF Input Audio Signals Comparator g NW PWM ON Y Triangular Waves lt 44 gt Hybrid Feedback Digital Amplifier Problems of Digital Amplifiers Also applies to RX D401 With conventional amplifiers the mechanism for digital signal processing tends to cause a wide range of noise Analog Digital Analog PWM m Magnetic Slew Rate Fluctuation Distortion m Power Supply Noise m Dead Time EMI Error amp Distortion Even when the PWM signals are accurate a wide range of noise is generated at power stage and after lt 45 gt Hybrid Feedback Digital Amplifier Evolution of Hybrid Feedback Digital Amplifier 1 Also applies to RX D401 Hybrid Feedback Digital Amplifier Use of two feedback loops eliminates the noise generated at each process Digital feedback for significantly improving the precision of PWM signal generation Analog feedback for brushing up the waveform of the analog signal at output to match the original Digital feedback for significantly improving the precision of PWM signal generation PWM PWM Phase Shift erd Analog feedback for brushing up the waveform of the analog signal at output to match the original lt 46 gt Hybrid Feedback Digital Amplifier Evolution of Hybrid Feedback Digi
28. nd in each band will get louder and loud sound will be moderated This makes the output sound clear across the range regardless of the original levels In addition the unit individually controls the sound compression level of each band When the sound level is low the compression levels of high and low frequencies are raised to deliver enough loudness When the sound level is high the gains of the two frequencies Low Sound Level moderated to prevent excessive bass and treble output These technologies combine to retain the excitement of multi channel sound and keep dialog sound clear even at low sound levels Frequency of Output Signals The technologies are applied even when the sound level is lowered suddenly which is especially useful for midnight viewing for example Frequency lt 40 gt JVC exclusive DSP Center Channel Alignment Also applies to RX D401 The center speaker is usually placed on top of or under the display while the front speakers are set at or near ear level The result is that dialog carried by the center speaker seems out of place relative to music and sound effects JVC s exclusive DSP application virtually positions the center speaker to align it with other speakers with respect to height The dialog simply sounds more natural
29. ned by ABS Cb Cr CbCrdiff Green e Cyan Definition of Fleshtone Area in Color Vector Field VISUAL PROOF 115 2 PC Link USB Connection for Receiving Audio Signals from The RX D702 permits transmission of stereo audio signals from your PC MP3 WMA Linear etc for listening via your audio system The unit even permits wireless USB transmission which ensures superior near CD sound quality as well as enhanced convenience Wireless USB Connection Superior Sound Quality Matching CD DVD 13 User ID Learning Function amp Auto Scan 14 USB Connection Transmission of Stereo Audio Signals from PC 16 Wireless USB Connection J Superior Sound Quality Matching CD DVD Note PC Max reach is 30m Desk Top PC but this depends on the environment 1 The 2Mbps high transmission rate using the 2 4GHz band permits transmission of uncompressed signals for lossless reproduction 2 Input signals are free of D A or A D conversion until just before output which prevents conversion loss 3 Use of DSSS Direct Sequence Spread Spectrum modulation technology enables transmission of uncompressed signals with superior resistance against noise which retains superb sound quality 4 Corresponds to 16 bit 32kHz 44 1kHz 48kHz sampling rates 5 Almost real time data transmission delay time is only 2 msec or less lt 13 Wirele
30. ngly For playback of frequencies above 20kHz generated by this waveform processing the range expansion section has a frequency conversion section preceding it Range Expansion Block Diagram Hi Sampling Calculation E Analog Digital Soumi Sound High Digital gt Wave Wave Sampling Signal Input Analysis Signal Output Deduction lt 24 gt CC Converter There are several high bit upsampling processing Therefore applying the same process for adding systems on the market that claim to offer the same harmonic components is not proper in view of benefits as the CC Converter They are all designed to musicality Reviewers of European audio magazines create and add frequencies harmonics over 20kHz are highly critical of this approach Moreover the existing deriving from an input signal high bit upsampling processing systems use 2x sampling frequencies 88 2kHz for CDs to achieve a 44 1kHz frequency range or 96kHz for DVD Video to achieve a 48kHz frequency range But we do not believe the mechanical addition of harmonics can ensure the faithful recreation of musicality The sound generated by an instrument contains harmonic components And it is the harmonic components that determine the tone of an instrument The harmonic components of one violin are different than those of another One player s phrasing produces different harmonic components from one by others Some instruments feature rich
31. ogies that Even Permit HDMI Compatibility Converter JVC Original Technology for Superior Sound High Performance DSP for Superior Sound Quality 1 High Quality Pictures The JVC A V receivers deliver not only superior sound but also superb pictures with a host of advanced technologies The units feature HDMI terminals and use of DCDi by FAROUDJA HDMI _ HDMI The Next Generation Digital Interface 05 HDMI Easy Connections for All Digital Transmission DCDi by FAROUDJA Connection Example RX D702 07 Connection Example RX D402 RX D401 08 _ What is DCDi by FAROUDJA HDMI HDMI High Definition Multimedia Interface An Industry Supported Digital Audio Video Interface Developed for Next Generation Home AV Devices Its remarkable benefits include 1 All digital provides the highest quality available HDMI is the only interface in the industry that can handle both uncompressed high definition video and uncompressed multi channel audio Supported HD video formats include 720p 1080 and even upcoming 1080p 2 single cable connection for transmission of high quality audio and video signals 3 HDCP High bandwidth Digital Content Protection is supported Component Video YPbPr Consumer AV Dic 2 vw v Consumer AV HDMI The Next Generation Digital Interface Also a
32. pplies to RX D401 HT HIGH DEFINITION MULTIMEDIA INTERFACE HDMI Founders Hitachi Matsushita Philips Silicon Image SONY Thomson Multimedia Toshiba lt 5 gt Easy Connections for All Digital Transmission Also applies to RX D401 B Single Cable Connections 5 1 ch Audio DVD TI x NN E 2 ch Audio Receiver STB Component Video DVD Player Hom Receiver Hmm 10 Audio 9 Video Cables 3 HDMI Cables B All Digital Transmission of Receiver Display High Quality Video amp Audio Digital B Even System Control 15 Co verter ve ter available 6 DCDi by FAROUDJA Connection Example RX D702 DVD VDR D VHS STB Display 480i p 720p 10801 PCM DVD Audio DD DTS 4801 720p 10801 i E iun law a HDMI Da FAROUDJA Speakers NET oo en d age a i RASA SEEN Hybrid Feedback Digital Amplifier lt Converter Conversion Inputs Outputs k ni LE K K K K K KK K K K K usb E sg K K K K K K K K K Component Component Component Up Converter S Video S Video S Video Composite Composite composite Ts DCDi by FAROUDJA Connection Example RX D402 D401 RX D402 Also applies to RX D4
33. ss USB Connection J User ID Learning Function amp Auto Scan User ID Learning Function To ensure security the wirelss USB transmitter and the RX D702 share a specific user ID This means devices without the same ID cannnot receive signals from the transmitter And when you replace the transmitter User ID Learning Function would be convenient This function lets you easily set up a new user ID so that the unit can receive signals from the new transmitter Transmitter USB WIRELESS TRANSMITTER POWER PLAYER Channel Key ID Key Auto Scan The Wireless USB additionally features Auto Scan which stops interruption from other signals in the same room When the system is turned on this function automatically detects electric waves from other devices wireless LAN for example and selects a band that won t be interrupted by the other signals When the signal transmission is interfered by other waves while using the unit simply press and hold the Channel Key on the transmitter for a few seconds The transmitter automatically switches the band to a one that won t be interfered by the waves Center Frequency 11 2 462 MHz 2 467 MHz 2 472 MHz lt 14 gt Wireless USB Connection Ul Comparison of Signal Formats Compression No Compression Compression Format No Compression due to low data rate 1Mbps 2Mbps Delay Time Approx 400msec Under2mse
34. t Advantages single chip performing DTS 96 24 processing and DAP Digital Acoustics Processing with power to spare FA OU R E USI e More accurate implementation of simulated DAP sound fields d e Compact size conducive to reduction in digital EN 5 P noise TEXAS INSTRUMENTS e Floating point operations for more accurate TECHNOLOGY calculations with an expanded range of numbers FLOPS Floating Point Operations per Second the number of floating point calculations per second performed with real numbers MIPS Million Instructions per Second A 1MIPS computer processes 1 million instructions per second An instruction is a command sent out to a DSP to directly control and operate it A DSP executes instructions stored in memory makes calculations and outputs the result The number represents a DSP or CPU s capability of computing the greater the power of processing 32 JVC exclusive DSP JVC s DSP Also applies to RX D401 Listening to the 7 1 channel surround as processed by the JVC DAP Digital Acoustics Processor evokes a totally different surround sound experience from what you get from stereo or 5 1 channel sound Listen carefully to the 5 1 channel sound of a DVD in its recorded form and youll notice it does not produce the sensation of being Stereo Playback surrounded by sound JVC developed the DAP for one objective to make the home theater audience feel as if they were in the
35. tal Amplifier 2 Also applies to RX D401 Hybrid Feedback Digital Amplifier Ver II Double analog feedback ensures even lower distortion PWM PWM Phase Shift i O 9 Double analog feedback ensures even lower distortion lt 47 gt Hybrid Feedback Digital Amplifier Evolution of Hybrid Feedback Digital Amplifier 3 Also applies to RX D401 Hybrid Feedback Digital Amplifier Ver Double analog amp digital feedback loops for even lower total harmonic distortion Use of newly developed JCV8015 for containing all the circuits Double analog amp digital feedback loops for even lower total harmonic distortion TD PASSA AAS PES AS SAAS SSAA APSA 7 2 PWM Modulator Phase Shift e e JCV8015 lt 48 gt Hybrid Feeaback Digital Amplifier Ver Low Voltage Power Supply Also applies to RX D401 Hybrid Feedback Digital Amplifier Ver Ill also features low voltage power supply which ensures stable signal transfer Power Supply Qu ality Sound Large Capacity Hig h Efficiency e Power Stabilized pu Transformer Power Supply p Circuit Power Supply
36. tion of speaker setting Blue ball receiver s position seating position Brown ball up front sound source stereo 2 channel 3 red balls up front sound source left right and center channels 2 red balls in the rear sound source surround left and right channels 5 1 channel surround consists of five red balls 4 green balls to the sides and in the rear 7 1 channel surround consists of three red balls and four black balls 21 7 DE Qs SI Sound Field Analysis Ray Tracing RX D702 0402_ li ij M Wh T 2 7 NE UU y 245 5 Wo END 1 Li N s 8 n X m Nse e lt am 2 j p Qu vs 4 M B fi Also applies to RX D401 lt 34 gt m The reason why sound field simulation by DSP produces better results than one based on actual measured environments x Also applies to RX D401 To recreate an environment s sound field a real hall or Sound field simulation by DSP on the other hand can cinema s sound field is measured for data For produce accurate data by supplying parameters such as measurements a pulse noise is emitted its direct and the shape of a hall the shape and acoustic properties of indirect sounds are picked up by microphones an
37. tures Product Highlights 3D Headphone Stereo 110 watts per channel 6 ohms from Hybrid Feedback Digital Amplifier Ver III 192kHz 24 bit P E M D D Converter 20Hz to 20kHz with 0 896 THD HDMI for single cable all digital Front Center Surround Channels e Surround Front 110 watts per channel transmission of audio and video signals Quick Speaker Setup 6 ohms at 1kHz with 0 8 THD Center Video Up Conversion to HDMI for single One Touch Operation 110 watts 6 ohms at 1KHz with 0 8 THD cable output of high quality video from any DSP Digital Equalizer Surround 110 watts per channel 6 ohms at input terminals AV COMPU LINK 1kHz with 0 8 THD Surround Back 110 USB Input for receiving audio signals from PC Multi Brand A V STB CATV DBS Glow watts per channel 6 ohms at 1kHz with 0 8 Center Channel Alignment Remote Control THD Virtual Surround Back for creating even wider Dolby Digital EX Dolby Digital Dolby Pro Logic sound field without a surround back speaker 3D PHONIC Ilx Dolby Pro Logic 11 DTS DTS ES DTS NEO 6 DTS 96 24 DAP for Multi Channel Digital Sources e DVD Multi Channel Audio Compatible THEATER 1 THEATER 2 HALL 1 HALL 2 DANCE CLUB LIVE CLUB PAVILION DAP for 2 Channel Sources MONO FILM THEATER 1 THEATER 2 HALL 1 HALL 2 DANCE CLUB LIVE CLUB PAVILION ALL CH STEREO 60 101610 002019089 0 mmr e
38. veability Comparison of Digital Amplifiers 44 45 56 47 48 49 50 51 52 53 54 Hybrid Feedback Digital Amplifier 1 Background What is PWM Pulse Width Modulation PWM is a method of digitally encoding analog signal levels In the process continuously varying value of input audio signals is detected based on the reference voltage Vref by comparing the signals with triangular waves When the value is higher than Vref level the pulse is switched ON and when it gets below Vref it s turned OFF The higher than Vref the value is the longer the pulse is kept ON The lower than Vref the value is the longer the pulse is left OFF Thus square shaped waves are generated representing either ON or OFF state of the pulse length of the and OFF pulses expresses the value of audio signals with respect to the Vref levels These waves are called PWM signals Precision of the PWM signals is one of the elements that determine the sound quality delivered by a digital amplifier This is why feedback process is essential for delivering high quality sound Also applies to RX D401 Switching Power Supply with Highly Efficient Operations Power MOS FET Switch Heat Generation 1 Loss from ON Impedance 2 Switching Loss PWM Pulse Width Modulation Generation of PWM Signals 1 Values of input audio signals are detected by ON comparison with triangu
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