DSP-A2070 CONTENTS DIGITAL SOUND FIELD PROCESSING AMPLIFIER OPERATION MANUAL SAFETY INSTRUCTIONS..................................................Inside Front cover SETUP & ADJUSTMENT ..............................................................................3 1-1.GETTING STARTED ...............................................................................3 1-2.SETUP....................................................................................................10 1-3.CONTROLS & ADJUSTMENTS ......
PRECAUTIONS & SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK), NO USER-SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. 1 Read Instructions – All the safety and operating instructions should be read before the unit is operated. 2 Retain Instructions – The safety and operating instructions should be retained for future reference.
PRECAUTIONS 1 To ensure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. 2 Install your unit in a cool, dry, clean place – away from windows, heat sources, and too much vibration, dust, moisture or cold. Avoid sources of hum (transformers, motors). To prevent fire or electrical shock, do not expose to rain and water. 3 Do not operate the unit upside-down. It may overheat, possibly causing damage. 4 Never open the cabinet.
Congratulations! You are the proud owner of a Yamaha Digital Sound Field Processing (DSP) System—an extremely sophisticated audio component. The DSP system takes full advantage of Yamaha’s undisputed leadership in the field of digital audio processing to bring you a whole new world of listening experiences.
SETUP & ADJUSTMENT 1-1. GETTING STARTED Installing the Remote Control Unit Batteries Unpacking Since the remote control unit will be used for many of this unit’s control operations, you should begin by installing the supplied batteries. If you haven’t already done so, carefully remove this unit and its accessories from the box and wrapping material. You should find the unit itself and the following accessories. Remote control Batteries 1.
● When you notice that remote control operation has become erratic, or the distance from which the remote control will function has decreased, it’s time to replace the batteries. Always replace all batteries at the same time. ● Make sure that the YPC/USER/LEARN switch on the remote control unit is set to the YPC or USER position for normal operation. ● This remote control uses an advanced, highly directional infrared beam.
Dolby Pro Logic Surround Dolby Pro Logic Surround + DSP The Dolby Pro Logic Surround Decoder program lets you experience the dramatic realism and impact of Dolby Surround movie theater sound in your own home. Dolby Pro Logic gets its name from its professional-grade steering logic circuitry, which provides greater effective channel separation for a much higher degree of realism than the “passive” Dolby Surround circuits found in today’s typical home audio/video equipment.
6 Setting Up Your Speaker System Use of the Center Dialog Speaker Is Recommended This unit has been designed to provide the best sound field quality with a full seven-speaker system setup, using two extra pairs of effect speakers to generate the sound field plus one center speaker for dialog, when using Dolby Pro Logic Surround decoding. We therefore recommend that you use a seven-speaker setup.
Four Possible Types of Speaker System Configurations Recommended 4 Speaker System 5 Speaker System 6 Speaker System 7 Speaker System Simplest system. Good for Audio/Video sources and Dolby Pro Logic Surround. Good for sound fields from 2-channel stereo sources. This is the recommended speaker system, providing the best sound effects. You can enjoy widely diffused sound by only adding two additional speaker units at the rear. With sound field programs No. 7 through No.
Speakers and Speaker Placement NOTE: The Yamaha NS-C90 speaker, available in some countries, is an ideal choice for the center speaker. Your full seven-speaker system will require three speaker pairs: the MAIN SPEAKERS (your normal stereo speakers), the FRONT EFFECT SPEAKERS, and the REAR EFFECT SPEAKERS, plus the CENTER SPEAKER. You may also be using a subwoofer. You will probably use your present stereo speakers as the MAIN SPEAKER pair.
VIDEO SUPERIMPOSE OPEN/CLOSE THE CONTROL DOOR If you connect your video cassette recorder, video disc player, video monitor, etc. to this unit, you can take advantage of this unit’s capability to display program titles, parameter data and information about other various settings and adjustments on your video monitor’s screen. This information will be superimposed over the video image. When it is not necessary to operate controls inside the control door, close the door.
1-2. SETUP Before you start making connections make sure all related electronic components are turned OFF. REAR PANEL 1 2 3 4 5 6 7 8 (General Model) 240V 9 CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
1 GND Terminal Connects the ground wire of the turntable to produce minimum hum. In some cases, however, better results may be obtained with the ground wire disconnected. 2 Audio Signal Connection Jacks (for Audio Source Equipment) Connect the inputs and/or outputs of your audio equipment. 3 Audio/Video Signal Connection Jacks (for Video Source Equipment) Connect the audio and video inputs and/or outputs of your video equipment.
E Center In Jack Line input to built-in center-channel amplifier. Connected with jumper bars to CENTER OUT jack when the built-in amplifier is used. Not connected when using an external power amplifier. F Mono Low Pass Jack When using a subwoofer, connect its amplifier input to this jack. Frequencies below 200 Hz from the left main, right main and center channels are output to this jack. G Split Low Pass Jacks When using two subwoofers, connect their amplifiers to these jacks.
Rear Panel Switch and Control Settings General Instructions for Connections There are several switches and controls on the rear panel that you’ll have to check before operating your system, and it’s a good idea to do it before you connect cables. Locate the MAIN LEVEL control (A) and FRONT MIX slide switch (:) at the bottom of the MAIN terminal group. Make sure the MAIN LEVEL control is set to its max (10) position and that the FRONT MIX switch is set to “OFF” for 7 or 6 speaker driving.
CONNECTING AUDIO/VIDEO SOURCE EQUIPMENTS TO THIS UNIT Video disc player Turntable AUDIO OUT VIDEO OUT OUTPUT GND AUDIO OUT TV/Satellite tuner VIDEO OUT Video cassette recorder 1 CD player AUDIO OUT VIDEO OUT OUTPUT AUDIO OUT VIDEO OUT Tuner VIDEO OUT OUTPUT AUDIO OUT VIDEO IN Tape deck 1 AUDIO IN LINE OUT LINE IN Video cassette recorder 2 VIDEO OUT AUDIO OUT Tape deck 2 LINE OUT LINE IN VIDEO IN AUDIO IN Video cassette recorder 3 If you wish to connect a second monitor TV (or a projector)
CONNECTING TO S VIDEO JACKS Video disc player VIDEO OUT TV/Satellite tuner VIDEO OUT S-VIDEO OUT VIDEO OUT S-VIDEO OUT VIDEO IN S-VIDEO IN NOTE: If video signals are sent to both S VIDEO input and VIDEO input jacks, the signals will be sent to their respective output jacks independently.
CONNECTING THE MAIN SPEAKERS TO THIS UNIT Main speaker Connect the MAIN speakers to the MAIN speaker output terminals of this unit. Make sure that the jumper bars between the MAIN OUT and MAIN IN jacks on the rear panel are in place. It is also possible to use an external power amplifier if more power is desired.
CONNECTING THE EFFECT SPEAKERS TO THIS UNIT Connect the FRONT effect speakers to the FRONT effect speaker output terminals of this unit. Center speaker Front effect speaker Front effect speaker L R If the FRONT effect speakers are not used, the FRONT MIX switch should be set to “ON”. Connect the REAR effect speakers to the REAR effect speaker output terminals of this unit. Center speaker Connect the CENTER speaker to the CENTER speaker output terminals.
ADDING A SUBWOOFER CONNECTING SPEAKER SYSTEMS You may wish to add a subwoofer to reinforce the bass frequencies. Connect the SPEAKERS terminals to your speakers with wire of the proper gauge, cut as short as possible. If the connections are faulty, no sound will be heard from the speakers. Make sure that the polarity of the speaker wires is correct, that is, + and – markings are observed. If these wires are reversed, the sound will be unnatural and will lack bass.
1-3. CONTROLS & ADJUSTMENTS FRONT PANEL 1 2 3 4 5 6 7 8 (General Model) 9 0 A BC D 1 Power Switch * STANDBY Mode (Europe model only) While the power is on, pressing the POWER key on the remote control unit switches the unit to the STANDBY mode. (In this mode, the indicator is half illuminated.) 2 Remote control sensor Signals from the remote control unit are received here. 3 Pro Logic Decoder Indicator Illuminates while the built-in Dolby Pro Logic Surround Decoder is being activated.
7 Input Selector Selects the input source that you want to listen to (and watch). 8 Master Volume Control Simultaneously controls signal level at all outputs: front effect, main, rear effect, center, and subwoofer. (This does not affect TAPE REC OUT level.) 9 Phones Jack Plug in headphones here for private listening. If the FRONT MIX and EFFECT switches are on, the effect channels will be heard along with the main channels. Otherwise the main channels only will be heard.
REMOTE CONTROL UNIT 1 Transmit/Learn Indicator In Learn mode, lights to indicate that the key just pressed is ready for learning input. In User mode, blinks when a learned key is pressed to show that a control signal has been sent to your equipment. 1 M L 2 3 4 5 K J 6 7 I H 8 G 9 0 2 YPC/USER/LEARN Switch Set to YPC for operating this unit and Yamaha equipments. Set to USER for using learned key functions. Set to LEARN for learning new control functions. (See page 39.
8 Center Level +/– Keys Increase (+) or decrease (–) the volume level of the center speaker(s). F Parameter +/– Keys Edit program parameters or used for seven types of settings/adjustments. 9 Rear Level +/– Keys Increase (+) or decrease (–) the volume level of the rear effect speakers. G Master Volume +/– Keys Increase (+) or decrease (–) the master volume level. : Reset Button Press this button to “reset” the internal microcomputer which controls remote control operations.
1-4. ADJUSTMENT MAIN/CENTER/EFFECT SPEAKER LEVEL BALANCE ADJUSTMENT This operation uses an internal test-tone generator for balancing the levels of the main, center and effect speakers. 1. Depress the TEST switch on the remote control so that “TEST DOLBY” appears in the display panel to enter test mode. A hiss-like calibration signal should be heard from the left main speaker, center speaker(s), right main speaker and rear effect speakers in turn (see diagram).
4. Select any other source in your system (VCR, turntable, etc.) and play that source. INPUT LEVEL ADJUSTMENT This adjustment is important for obtaining the best performance from the internal circuits of this unit. The optimum input level of this unit is pre-adjusted on the basis of the CD source level. This adjustment should be performed on all input sources in your system respectively, so that their levels match the CD source level as closely as possible.
OTHER IMPORTANT SETTINGS AND ADJUSTMENTS The following seven types of settings and adjustments should be done before enjoying audio and video sources. Note that these settings and adjustments cannot be done without monitoring the display information (or the information displayed on the monitor screen). 2. Select an item (title) of setting/adjustment. CENTER LEVEL CENTER MODE CENTER GEQ LOW FREQ.
DESCRIPTIONS OF THE ITEMS 1. Selecting Center Mode (CENTER MODE NRML/WD/ PHNTM) In Normal (NRML) position, any frequency below 100 Hz will be divided between the main left and main right speakers. For this reason even a speaker smaller than the main left and right speakers can obtain a sufficient effect. In Wide (WD) position, all range of frequencies for the centerchannel are output to the center speaker. Select this position if a good quality center speaker is being used.
3. Adjusting subwoofer level by the use of test-tone (LOW FREQ. TEST) The internal low frequency test-tone generator is useful for adjusting subwoofer level to make the subwoofer sound match the sound of other speakers in your audio system. Operating procedure 1. After selecting this item (title) in step 2 on page 25, press the Parameter + or – key to display the mode for adjustment. 2.
4. Initializing parameters on a DSP program (PARAMETER INIT) You can initialize all edited parameters on a DSP program. Note that a DSP program has two sub-programs; all parameters on both sub-programs are initialized by this operation. Operating procedure This operation cannot be done without the remote control unit. After selecting this item (title) in step 2 on page 25, press the Parameter + or – key to display the DSP program numbers (1 – 12).
GENERAL OPERATION 1. Set the MASTER VOLUME control to minimum. Front panel Remote control Front panel TAPE 2 MONITOR or TAPE 2 MON CHAPTER DISPLAY STILL PAUSE/STOP ENGLISH *To select a tape deck connected to this unit’s TAPE 2 terminals, press the TAPE 2 MONITOR switch. (Otherwise, turn this switch off.) 2-1. PLAYING A SOURCE PLAY SEARCH 4. Play the source. 2. Turn the power on. Front panel 5. Increase the setting of the MASTER VOLUME control to your listening level.
2-2. RECORDING A SOURCE TO AUDIO/VIDEO TAPE (OR DUBBING FROM A TAPE TO ANOTHER) Regardless of the setting of the INPUT SELECTOR, when you set the REC OUT selector to CD, the audio signal from your CD player can be recorded by your first tape deck. Likewise, when the REC OUT selector is set to LD, TV/DBS, VCR 2, VCR 3 or AUX, both the audio and video signals of the selected source can be recorded by your first VCR. 1. Set the REC OUT selector to the SOURCE position. 2. Select the source to be recorded.
NOTE: Please check the copyright laws in your country to record from records, compact discs, radio, etc. Recording of copyright material may infringe copyright laws. 2-3. DIGITAL SOUND FIELD PROGRAMS This unit has 12 programs for digital sound field processing, 6 from actual acoustic environments from around the world, and 6 programs for Audio/Video sources including sources encoded with Dolby Pro Logic surround. Many of the programs contain various parameters that can be adjusted to the listener’s taste.
3. All sound field programs have two “sub-programs” (see “2-7. DESCRIPTIONS OF THE SOUND FIELD PROGRAMS”). The subprograms are selected using the Parameter +/– keys on the remote control unit. The CONCERT HALL 1 program, for example, contains the sub-programs “Hall A in Europe” and “Hall B in Europe”. When the CONCERT HALL 1 program is first selected, the “Hall A in Europe” sub-program will be selected and displayed on the front panel. To select “Hall B in Europe”, press the Parameter + or – key.
The following list gives brief descriptions of the sound fields produced by each of the DSP programs. Keep in mind that most of these are precise digital recreations of actual acoustic environments. The data for them was recorded at the locations described using sophisticated sound field measurement equipment. * The channel level balance between the left rear effect channel and the right rear effect channel may be different depending on the sound field you are listening to.
3. CONCERT HALL 3 Hall E in Europe: 4. CHURCH A classic large 2200-seat concert hall with a circle stage and seats behind the stage. Tokyo: Preset Parameter EFCT TRIM 0 dB INIT. DLY 30 ms ROOM SIZE 1.0 LIVENESS 5 Live Concert: Preset Parameter EFCT TRIM 0 dB INIT. DLY 40 ms REV. TIME 2.5s REV. DELAY 122 ms REV. LEVEL 100% A round concert hall with a rich “surround” effect and pronounced echo. Preset Parameter EFCT TRIM 0 dB INIT. DLY 45 ms ROOM SIZE 1.
The Roxy Theatre: 6. JAZZ CLUB The ideal program for lively, dynamic rock music. The data for this program was recorded at LA’s “hottest” rock club. Preset Parameter EFCT TRIM 0 dB INIT. DLY 15 ms ROOM SIZE 1.0 LIVENESS 5 REV. TIME 1.6s REV. DELAY 100 ms REV. LEVEL 12% Warehouse Loft: This program simulates a space enclosed by concrete. An energetic sound field is created with relatively clear reflections by the wall. Preset Parameter EFCT TRIM 0 dB INIT. DLY 15 ms ROOM SIZE 1.0 LIVENESS 7 REV. TIME 2.
7. CONCERT VIDEO 1 Classical/Opera: 8. CONCERT VIDEO 2 This program provides excellent depth of vocals and overall clarity. For opera, the orchestra pit and the stage are ideally combined, letting you feel a full presence sound. Pop/Rock: Preset Parameter EFCT TRIM 0 dB DIR. ENHANCEMENT MID P. INIT. DLY 21 ms P. ROOM SIZE 1.0 S. DELAY 25 ms S. ROOM SIZE 1.0 REV. TIME 1.6s REV. DELAY 100 ms REV. LEVEL 21% Preset Parameter EFCT TRIM 0 dB DIR. ENHANCEMENT MID P. INIT. DLY 12 ms P. ROOM SIZE 1.0 S.
Mono Movie: 10. MOVIE THEATER 1 This program is ideal for reproducing monaural video sources (old movies etc.). Monaural sounds are reproduced with strong presence by creating moderate reverberation, while conversations are oriented to the screen. Ideal for reproducing video discs, video tapes and similar sources which are Dolby Surround encoded and bear the “DOLBY SURROUND” logo. 70 mm Spectacle: Preset Parameter EFCT TRIM 0 dB DIR. ENHANCEMENT MID P. INIT. DLY 44 ms P. ROOM SIZE 1.0 REV. TIME 1.
11. MOVIE THEATER 2 12. DOLBY PRO LOGIC SURROUND Ideal for reproducing video discs, video tapes and similar sources which are Dolby Surround encoded and bear the “DOLBY SURROUND” logo. Reproduces video discs, video tapes and similar sources which are Dolby Surround encoded and bear the “DOLBY SURROUND” logo. 70 mm Adventure: Normal: This program is ideal for precisely reproducing the sound design of the newest movies.
The remote control unit, in addition to controlling the most commonly used functions of the main unit and other connected Yamaha audio and video equipment, has a sophisticated “learning” function that allows it to control other equipment in your system or other household appliances equipped with infrared remote control receivers.
NOTE: The originally preset function of a key is still available in the USER position if the key does not learn a new function. Erasing All Learned Functions 1. Set the YPC/USER/LEARN switch to the Learn mode. NOTE: If all signals learned are long signals, it is possible that the capacity of the memory could be completely filled before all of the keys learn new functions, and so no further learning is possible.
CREATING YOUR OWN SOUND FIELDS WHAT IS A SOUND FIELD? In order to explain the impressive 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 walls of the room. In addition to making the sound “live”, these reflections enable us to tell where the player is situated, and the size and shape of the room in which we are sitting.
In addition to the “TYPE” parameter which selects the subprograms within each sound field program (e.g. “Hall A in Europe” and “Hall B in Europe” for program 1, “CONCERT HALL 1”), each program also has a set of parameters that allow you to change the characteristics of the acoustic environment to create precisely the effect you want. These parameters correspond to the many natural acoustic factors that create the sound field you experience in an actual concert hall or other listening environment.
Not all of the following parameters are found in every program. Refer to the “PROGRAM PARAMETER TABLE” on page 48 for a complete list of the parameters in each program. ● ● ENGLISH 3-2. DESCRIPTIONS OF THE DIGITAL SOUND FIELD PARAMETERS INIT DLY (Initial Delay) How it Affects the Sound: Changes the apparent distance from the source sound. ROOM SIZE Changes the apparent size of the music venue. The larger the value, the larger the simulated room will sound.
● LIVENESS ● REV. TIME (Reverberation Time) How it Affects the Sound: How it Affects the Sound: This parameter changes the apparent reflectivity of the walls in the hall. The natural reverberation time of a room depends primarily on its size and the characteristics of its inner surfaces. This parameter, therefore, changes the apparent size of the acoustic environment over an extremely wide range.
REV. DELAY (Reverberation Delay) ● This parameter sets the time difference between the beginning of the direct sound and the beginning of the reverberation sound. The larger the value, the later the reverberation sound will begin. A later reverberation sound makes you feel like the space of the acoustic environment has become larger. REV. LEVEL (Reverberation Level) This parameter adjusts the volume of the reverberation sound. The larger the value, the stronger the reverberation becomes.
● DIR. ENHANCEMENT (Directional Enhancement) This circuit emphasizes the position of sound. If this circuit is activated, the unity constituent of the input left and right channels (those signals which are common to the left and right channels) will be output from the center speaker, and the disparity constituent of the left and right signals (the difference between the left and right channels) will be output from the surround speakers.
EFCT TRIM (Effect Trim) Performs fine adjustment of the level of all the effect sounds. Control Range: ● Adjusts the delay between the direct sound and the first reflection on the rear surround side sound field. The larger the value, the later the surround sound field is generated. –3 dB to 3 dB ● Control Range: P. INIT DLY (Presence Initial Delay) Adjusts the delay between the direct sound and the first reflection on the presence side of the sound field.
TABLES & SPECIFICATIONS 4-1. PROGRAM PARAMETER TABLE If you alter parameters, write down the altered values on the table. If parameters are initialized because of a mis-operation or a long (more than two weeks) cut in power, you can restore your custom values by adjusting parameters according to the table. No. Program Name 1 CONCERT HALL 1 2 3 4 5 48 CONCERT HALL 2 CONCERT HALL 3 CHURCH ROCK CONCERT Parameter Name TYPE EFCT TRIM INIT. DLY ROOM SIZE LIVENESS TYPE EFCT TRIM INIT.
6 7 8 Program Name JAZZ CLUB CONCERT VIDEO 1 CONCERT VIDEO 2 Parameter Name TYPE EFCT TRIM INIT. DLY ROOM SIZE LIVENESS TYPE EFCT TRIM DIR. ENHANCEMENT P. INIT. DLY P. ROOM SIZE S. DELAY S. ROOM SIZE TYPE EFCT TRIM DIR. ENHANCEMENT P. INIT. DLY P. ROOM SIZE S. DELAY S. ROOM SIZE REV. TIME REV. DELAY REV. LEVEL TYPE EFCT TRIM DIR. ENHANCEMENT P. INIT. DLY 9 TV THEATER P. ROOM SIZE S. DELAY S. ROOM SIZE REV. TIME REV. DELAY REV. LEVEL Altered Value Preset Value Village Gate 0 dB 17 ms 1.
No. 10 11 12 50 Program Name Parameter Name MOVIE THEATER 1 TYPE EFCT TRIM DOLBY PRO LOGIC P. INIT. DLY P. ROOM SIZE S. DELAY S. ROOM SIZE MOVIE THEATER 2 DOLBY PRO LOGIC TYPE EFCT TRIM DOLBY PRO LOGIC P. INIT. DLY P. ROOM SIZE S. DELAY S. ROOM SIZE TYPE S. DELAY S. ROOM SIZE S. LIVENESS Altered Value Preset Value 70 mm Spectacle 0 dB ON 13 ms 1.0 23 ms 1.0 70 mm Adventure 0 dB ON 15 ms 1.0 15 ms 1.0 Preset Value Altered Value 70 mm Musical 0 dB ON 17 ms 1.0 20 ms 1.
PROBLEM Power does not come on. Hum. No sound. POSSIBLE CAUSE AC cord not properly plugged in. Bad cable connection. Bad or incorrect input connection. Incorrect input source selection. No sound from main speakers. No sound from effect speakers. The MAIN LEVEL control is set to “0”. EFFECT switch is set off. The DOLBY PRO LOGIC program is being used with material not encoded with Dolby Surround. In a 4-channel system, the front MIX switch is set incorrectly. The center mode is in “PHNTM”.
4-3. SPECIFICATIONS Minimum RMS Output Power Per Channel Main (20 Hz – 20 kHz 0.015% THD 8Ω/6Ω) .................................... 80W/100W Center (20 Hz – 20 kHz 0.015% THD 8Ω/6Ω) [U.S.A., Canada and General models] ............................................. 80W/100W [Australia, Europe and U.K. models] ................................................. 80W/100W Front, Rear Effect (20 Hz – 20 kHz 0.05% THD 8Ω/6Ω) [U.S.A., Canada and General models] ...............................................
BASS EXTENSION ............................................................................. +7 dB (70 Hz) AC Outlets 2 SWITCHED OUTLETS [U.S.A. and Canada models] .................................................... 120W max. total [General model] ......................................................................... 100W max. total 1 SWITCHED OUTLET [Australia, Europe and U.K. models] ................................................ 100W max. 1 UNSWITCHED OUTLET [U.S.A. and Canada models] ............
YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, D-2084 RELLINGEN BEI HAMBURG, F.R. OF GERMANY ELECTRONIQUE FRANCE S.A. 17 RUE DES CAMPANULES, LOGNES 77321 MARNE LA VALLEE CEDEX 2, FRANCE ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND SCANDINAVIA A.B.
