YamahaメーカーDSP-A990の使用説明書/サービス説明書
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FRONT R REAR L –200m FRONT L FRONT REAR LR –200m 200m REAR R 200m NATURAL SOUND DIGITAL SOUND FIELD PROCESSING AMPLIFIER DSP - A990 INPUT SELECTOR VCR I CD LD PHONO TV/DBS PRO LOGIC DECODER SOUND .
Congratulations! Y ou ar e the proud owner of a Y amaha Digital Sound Field Pr ocessing (DSP) System—an extremely sophisticated audio component. The DSP system takes full advantage of Y amaha’s undisputed leadership in the field of digital audio processing to bring you a whole new world of listening experiences.
1 English SAFETY INSTR UCTIONS 1. AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION Keep the unit away from locations where it is likely to be exposed to high temperatures or humidity—such as near radiators, stoves, etc. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage.
PRECA UTIONS & SAFETY INSTR UCTIONS ..................................1 SETUP & ADJUSTMENT ...................................................................3 1-1. GETTING ST AR TED ............................................................
1-1. GETTING ST AR TED Unpac king If you ha v en’t already done so , carefully remov e this unit and its accessories from the box and wr apping material.
● When you notice that remote control oper ation has become erratic , or the distance from which the remote control will function has decreased, it’ s time to replace the batteries .
Dolb y Pro Logic Surr ound The Dolby Pro Logic Surround Decoder prog r am lets y ou e xperience the dramatic realism and impact of Dolb y Surround mo vie theater sound in y our own home .
Video superimpose If you connect y our video cassette recorder , video disc play er , video monitor , etc. to this unit, you can tak e adv antage of this unit’ s capability to displa y prog ram titles , par ameter data and inf ormation about other v arious settings and adjustments on your video monitor’ s screen.
7 English Setting Up Y our Speaker System This unit has been designed to provide the best sound field quality with a full se v en-speak er system setup , using tw o e xtr a pairs of eff ect speak ers to gener ate the sound field plus one center speaker f or dialog, when using Dolb y Pro Logic Surround decoding.
8 4 Speaker System Simplest system. You can enjoy widely diffused sound by only adding two additional speaker units at the rear. FRONT MIX switch—Set to ON. (See page 13.) Center Mode—Set to PHNTM. (See page 26.) 5 Speaker System Good for Audio/Video sources and Dolby Pro Logic Surround.
9 English Speakers and Speaker Placement Y our full se v en-speak er system will require three speak er pairs: the MAIN SPEAKERS (y our normal stereo speakers), the FR ONT EFFECT SPEAKERS and the REAR EFFECT SPEAKERS , plus the CENTER SPEAKER. Y ou may also be using a subw oof er .
10 1-2. SETUP Bef ore you start making connections make sure all related electronic components are tur ned OFF . REAR P ANEL 5ch 7ch ON OFF TV/DBS GND FRONT MIX LOW PASS PRE OUT MAIN IN MAIN CH REAR —I0dB MAIN 0dB LEVEL FRONT CENTER COUPLER FRONT 6 Ω MIN.
11 English 1 A udio Signal Connection J ac ks (f or A udio Source Equipment) Connect the inputs and/or outputs of y our audio equipment. 2 A udio/Video Signal Connection J ac ks (f or Video Source Equipment) Connect the audio and video inputs and/or outputs of y our video equipment.
12 F Low P ass Jack When using a subwoof er , connect its amplifier input to this jack. F requencies below 200 Hz from the left main, right main and center channels are output to this jack. G Center Out Jac k Center-channel line output. Not connected when the built-in amplifier is used.
13 English REAR P ANEL SWITCH AND CONTR OL SETTINGS There are se v eral s witches and controls on the rear panel that you’ll ha v e to chec k bef ore oper ating y our system, and it’ s a good idea to do it bef ore y ou connect cab les. Locate the MAIN LEVEL slide s witch ( 3 ) and FR ONT MIX slide s witch ( D ).
14 TV/DBS GND AUX 1 PHONO 1 2 3 4 AUDIO OUT LINE OUT LINE IN OUTPUT GND LINE OUT VIDEO OUT AUDIO IN VIDEO IN AUDIO OUT VIDEO OUT OUTPUT OUTPUT AUDIO OUT VIDEO OUT AUDIO IN VIDEO IN AUDIO OUT VIDEO OUT VIDEO IN CONNECTING A UDIO/VIDEO SOURCE EQUIPMENT T O THIS UNIT * If you ha v e Y AMAHA components numbered as 1 , 2 , 3 , etc.
15 English CONNECTING T O S VIDEO JA CKS If your video cassette recorder , video disc pla y er , etc. and your monitor are equipped with “S” (high-resolution) video ter minals, connect them to this unit’ s S VIDEO jacks , and connect this unit’ s S VIDEO MONIT OR OUT jack to the “S” video input of your monitor .
16 For connecting with a monitor TV that uses a 21 pin connector f or input (for Eur ope and U .K. models) Make a connection as figured belo w with a commercially av ailab le scar t-plug connector cab le . CONNECTING SPEAKER SYSTEMS Connect the SPEAKERS ter minals to y our speak ers with wire of the proper gauge, cut as shor t as possib le .
17 English CONNECTING THE MAIN SPEAKERS T O THIS UNIT Connect the MAIN speak ers to the MAIN speak er output ter minals of this unit. Make sure that the jumper bars between the PRE OUT and MAIN IN jac ks on the rear panel are in place . It is also possible to use an e xternal power amplifier if more po w er is desired.
18 CONNECTING THE EFFECT SPEAKERS AND THE CENTER SPEAKER(S) T O THIS UNIT Connect the FR ONT eff ect speak ers to the FR ONT eff ect speaker output terminals of this unit. If the FRONT eff ect speak ers are not used, the FR ONT MIX s witch should be set to “ON”.
19 English ADDING A SUBW OOFER Y ou ma y wish to add a subw oof er to reinf orce the bass frequencies. This unit provides a line-le v el subwoof er output, which contains only the frequencies under 200 Hz from the main and center channels.
20 1-3. CONTR OLS & ADJUSTMENTS FR ONT P ANEL 1 P o w er Switch * ST ANDBY Mode While the pow er is on, pressing the PO WER k e y on the remote control unit s witches the unit to the ST ANDBY mode. (In this mode, the po w er indicator is half illuminated.
21 English 6 Remote Control Sensor Signals from the remote control unit are receiv ed here. 7 Input Source Indicators Shows the currently selected input source b y lights up the corresponding indicator . 8 Input Selector Switch Sequentially selects the input source that you w ant to listen to and/or watch in the § § or © © direction.
22 REMO TE CONTR OL UNIT 1 T ransmit/Lear n Indicator In LEARN mode, lights to indicate that the k e y just pressed is ready f or learning input. In USER mode, blinks when a learned ke y is pressed to sho w that a control signal has been sent to y our equipment.
23 English 8 F ront Le v el +/– K eys Increase (+) or decrease (–) the v olume le v el of the front eff ect speakers . 9 Center Le v el +/– K eys Increase (+) or decrease (–) the v olume le v el of the center speaker(s). 0 Rear Le v el +/– K e ys Increase (+) or decrease (–) the v olume le v el of the rear eff ect speakers .
24 1-4. ADJUSTMENT MAIN/CENTER/EFFECT SPEAKER LEVEL B ALANCE ADJUSTMENT This operation uses an internal test-tone generator f or balancing the le v els of the main, center and eff ect speakers. 1. Depress the TEST s witch on the remote control so that “TEST DOLBY SUR.
25 English INPUT LEVEL ADJUSTMENT This adjustment is impor tant f or obtaining the best perf ormance from the inter nal circuits of this unit. The optimum input le v el of this unit is pre-adjusted on the basis of the CD source le v el.
26 O THER IMPOR T ANT SETTINGS AND ADJUSTMENTS IN THE “SET MENU” MODE Make the f ollo wing fiv e types of settings and adjustments bef ore enjo ying audio and video sources . Note that these settings and adjustments cannot be done without monitoring the displa y inf ormation (or the information displa y ed on the monitor screen).
27 English 2. Adjusting Center Channel Graphic Equalizer (CENTER GEQ) The built-in fiv e band g raphic equalizer is used to tailor , ov er a ±6 dB range , the ov erall output frequency response of the center channel. The fiv e bands cov er the complete audible sound spectrum and are centered on 100 Hz, 300 Hz, 1 kHz, 3 kHz and 10 kHz frequencies.
28 2-1. PLA YING A SOURCE 1. Set the master V OLUME control to minimum. 2. T ur n the power on. 3. Select an input source. (The selected source is shown b y the displa y panel, the monitor screen and illumination of the corresponding input source indicator on the front panel.
29 English T o record the input sour ce 1. Press the REC OUT s witch (so that “REC OUT ... ” appears on the displa y and the monitor screen). Front panel 2. Within 5 seconds, select the “SOURCE” position with the input selector s witch (so that “REC OUT SOURCE” appears on the displa y panel and the monitor screen).
30 T o record a sour ce other than the input sour ce This unit has a function of selecting a source to be recorded to tape deck or VCRs independent of the selection of input source. 1. Press the REC OUT s witch (so that “REC OUT ... ” appears on the displa y and the monitor screen).
31 English NO TE: Adjusting the master V OLUME, BASS , TREBLE controls, etc., or selecting a sound field progr am has no eff ect on the material being recorded. NO TE: Composite video and S video signals pass independently through this unit’ s video circuits .
32 3. All sound field programs e xcept CHURCH ha v e two “sub- programs” (see “2-7. DESCRIPTIONS OF THE SOUND FIELD PROGRAMS”). The sub-programs are selected using the P arameter +/– k e ys on the remote control unit. The CONCERT HALL 1 program, f or e xample , contains the sub-programs “Hall A in Europe” and “Hall B in Europe”.
33 English 2-7. DESCRIPTIONS OF THE SOUND FIELD PROGRAMS The f ollo wing list giv es brief descriptions of the sound fields produced by each of the DSP prog r ams. K eep in mind that most of these are precise digital recreations of actual acoustic en vironments .
34 3. CONCER T HALL 3 Hall E in Europe: A classic large shoe-bo x type concer t hall with appro ximately 2200 seats . It has a circular stage and seats located behind the stage. Liv e Concer t: A large round concer t hall with a rich surround eff ect.
35 English 7. ENTER T AINMENT Stadium: This program giv es y ou long dela ys between direct sounds and eff ect sounds , and e xtr aordinarily spacious f eel of a large stadium. Disco: This program recreates the acoustic environment of a liv ely disco in the hear t of a v er y liv ely city .
36 9. CONCER T VIDEO Classical/Opera: This program pro vides e xcellent depth of v ocals and o v er all clarity , restr aining e xcessiv e re v erberation. F or oper a, the orchestra pit and the stage are ideally combined, letting y ou f eel a full presence sound.
37 English 11. MO VIE THEA TER Ideal f or reproducing video discs , video tapes and similar sources which are Dolby Surround encoded and bear the “DOLBY SURROUND” logo . 70 mm Adv enture: This program is ideal f or precisely reproducing the sound design of the new est mo vies .
The remote control unit, in addition to controlling the most commonly used functions of the main unit and other connected Y amaha audio and video equipment, has a sophisticated “lear ning” function that allows it to control other equipment in y our system or other household appliances equipped with infrared remote control receiv ers.
39 English NO TE : The originally preset function of a key is still a v ailable in the USER position if the ke y does not learn a new function. NO TE : If there is no more room in the memor y area f or a function to be lear ned, the TRANSMIT/LEARN indicator will flash on and off eight times.
40 3-1. SELECTING AND EDITING PR OGRAM P ARAMETERS WHA T IS A SOUND FIELD? In order to e xplain the impressiv e functions of the DSP system, we need to first understand what a sound field really is . What really creates the rich, full tones of a live instrument are the multiple reflections from the w alls of the room.
41 English In addition to the “TYPE” parameter which selects the sub- programs within each sound field prog ram (e .g. “Hall A in Europe” and “Hall B in Europe” f or program 1, “CONCER T.
42 3-2. DESCRIPTIONS OF THE DIGIT AL SOUND FIELD P ARAMETERS Not all of the f ollo wing par ameters are f ound in e v ery program. ● ROOM SIZE How it Aff ects the Sound: Changes the apparent size of the m usic v en ue . The larger the v alue , the larger the simulated room will sound.
43 English ● LIVENESS How it Aff ects the Sound: This parameter changes the apparent reflectivity of the w alls in the hall. The early reflections from a sound source will lose intensity (deca y) m uch f aster in a room with acoustically absorbent w all surf aces than in one which has mostly reflectiv e surf aces .
44 ● DIR. ENHANCEMENT (Directional Enhancement) This circuit emphasizes the position of sound. If this circuit is activ ated, the unity constituent of the input left and right channels (those signal.
45 English PROBLEM Power does not come on. Hum. No sound. No sound from the effect speakers. No sound from the front effect speakers. No sound from the center speaker. The sound suddenly goes off. The volume level cannot be increased, or sound is distorted.
46 Minimum RMS Output Power Per Channel Main (20 Hz – 20 kHz 0.015% THD 8 Ω /6 Ω ) ................ 60W+60W/75W+75W Center (20 Hz – 20 kHz 0.015% THD 8 Ω /6 Ω ) ................................ 60W/75W Front Effect (1 kHz 0.03% THD 8 Ω /6 Ω ) .
47 English Video Section Video Signal Type [Australia, Europe and U.K. models] ...................................................... PAL [Singapore Model] .................................................................................NTSC [General Model] .
YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.
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Yamaha DSP-A990をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはYamaha DSP-A990の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Yamaha DSP-A990の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Yamaha DSP-A990で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Yamaha DSP-A990を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はYamaha DSP-A990の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Yamaha DSP-A990に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちYamaha DSP-A990デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
