Home

YAMAHA EQ-550 Manual

1. 5 51 54 541 1541 54 54 51 541 541 55 54 bsd 154 54 54 tsd bs hoj bs 5 10 o 4 4 4 4 4 4 4 4 4 4 4 4 4 a a 4 E 4 4 4 4 4 3 El 3 3 3 3 3 3 3 a 3 3 a 3 8 3 3 3 a 3 3 3 3 3 8 8 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 7 7 1 1 1 1 1 1 1 1 1 1 104 1 1 1 1 1 1 1 1 1 1 6 6 3 aO 120 200480 m A a e oe alee ne ME e o o o o o o o 2 0 o o o o o o s 5 1 1 1 1 1 1 1 1 1 1 201 1 1 1 1 1 1 1 1 1 1 4 4 BOWEB NE 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 a PINK SUBSONIC TAPE EQUALIZER NOISE FILTER MODE 3 3 a a 3 3 8 3 3 3 3 s 3 3 3 3 3 3 3 3 3 3 2 ON ON REC 4 4 4 4 4 4 4 E EI a a 4 4 4 4 4 4 a 4 4 4 4 4 4 Al bod teed beet di 5 s s 5 s 5 5 5 5 s 505 5 5 5 5 5 5 5 5 5 o ac Microphone switch Tk a a ox 240 480 30 60 120 w N gt a 4 4 2 3 T H SPECTRUM ANALYZER T u a q 3 T E 0 EQUALIZER MODE ON TAPE OFF AMPLIFIER OR RECEIVER ICI Onn A t 1 LINE LINE P IN OUT EQ 550 EQUALIZER MODE ON REC TAPE OFF AMPLIFIER OR RECEIVER TAPE DECK RASH EQ 550 Unequalized signal de Equalized signal i EQUALIZER MODE ON TAPE ON AMPLIFIER OR RECEIVER TAPE PB EQ 550 114 EQUALIZER MODE ON REC AMPLIFIER OR RECEIVER TAPE DECK 3 HEAD TYPE SPEAKER R 9 C
2. SPEAKER L AMPLIFIER OR RECEIVER Microphone Place at listening point EQ 550 EN See Fig EB e When connecting your equipment turn the power to each unit off and make sure that you have correctly connected the Left L and Right R channels e For the amplifier or receiver connections please refer to the amplifier or receiver owner s manual il CONNECTING AN AMPLIFIER OR RECEIVER Check from the connection diagram that you have made the correct connections Please note that input procedures and program source selection may vary according to the capabilities of the amplifier or receiver and the connections between it and this unit e To connect an integrated amplifier or receiver using the ACCESSORY jacks See Fig P The ACCESSORY jacks are provided on some of Yamaha s newest amplifiers and receivers 1 Connect the SEND jacks of the ACCESSORY jacks to the LINE IN of this unit 2 Connect the RECEIVE jacks of the ACCESSORY jacks to the LINE OUT of this unit The program source selected with the integrated amplifier s or receiver s input selector can be equalized To connect an integrated amplifier or receiver without using the ACCESSORY jacks See Fig K 1 Connect the REC OUT jacks of the TAPE jacks to the LINE IN of this unit 2 Connect the TAPE PB jacks of the TAPE jacks to the LINE OUT of this unit The following operations can be carried out via the amplifier or
3. YAMAHA EQ 550 Natural Sound Stereo Graphic Equalizer Thank you for selecting the YAMAHA EQ 550 Stereo Graphic Equalizer CONTENTS SA Insmetions eee 1 a Du oT 2 OMMOCUOM Sear rester de IEEE 7 Front Panel Parts and Functions 8 A r NU RO RUE 10 Specifica on S eorr rerit TER taxi RET EY tas 11 TE NESNA aoaaa 12 OWNER S MANUAL IMPORTANT Please record the serial number of this unit in the space below Model Serial No The serial number is located on the rear of the main unit Retain this Owner s Manual in a safe place for future reference WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE 10 Bands of 12 dB EQ per Channel 10 Band Frequency Spectrum Analizer Built in Pink Noise Generator Electret Condenser Microphone Supplied CAUTION 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 Explanation of Graphical Symbols The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert you to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert you to the presence of
4. CROIZAT BP70 CROISSY BEAUBOURG 77312 MARNE LA VALLEE CEDEX02 FRANCE YAMAHA ELECTRONICS UK LTD YAMAHA HOUSE 200 RICKMANSWORTH ROAD WATFORD HERTS WD1 7JS ENGLAND YAMAHA SCANDINAVIA A B J A WETTERGRENS GATA 1 BOX 30053 400 43 VASTRA FROLUNDA SWEDEN YAMAHA CORPORATION YAMAHA MUSIC AUSTRALIA PTY LTD 17 33 MARKET ST SOUTH MELBOURNE 3205 VIC AUSTRALIA VJ82570 2 BWWBL b Printed in Japan
5. important operating and maintenance servicing instructions in the literature accompanying the appliance 10 Ventilation Slots and openings in the SAFETY INSTRUCTIONS Read Instructions All the safety and operating instructions should be read before the product is operated Retain Instructions The safety and operating instructions should be retained for future reference Heed Warnings All warnings on the product and in the operating instructions should be adhered to Follow Instructions All operating and use instructions should be followed Cleaning Unplug this product from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning Attachments Do not use attachments not recommended by the product manufacturer as they may cause hazards Water and Moisture The product should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool etc Accessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious injury to a child or adult and serious damage to the product Use only with a cart stand tripod bracket or table recommended by the manufacturer or sold with the product Any mounting of the product should follow the manufacturer s instructions and should use a mounting accessory recommended by
6. receiver Amp Program Source Setting With a REC Selected with the Set the INPUT OUT selector REC OUT Selector SELECTOR to TAPE With a TAPE Selected with the Turn the TAPE f MONITOR input selector MONITOR switch switch ON e To connect a separate amplifier or receiver See Fig 1 1 Connect the PRE OUT jacks of the control amplifier to the LINE IN jacks of this unit 2 Connect the MAIN IN jacks of the power amplifier to the LINE QUT jacks of this unit In this way you will be able to equalize the program source selected with the control amplifier input selector The pink noise level cannot be adjusted with the control amplifier s volume control Adjust the volume level with the OUTPUT LEVEL control of this unit il CONNECTING A TAPE DECK Connect the tape deck to the TAPE jacks Connect the TAPE PB jacks to the tape deck s LINE OUT terminal and the REC OUT jacks to the tape deck s LINE IN jacks E AUXILIARY POWER OUTLET AC OUTLET U S A Canada and General models This is an unswitched auxiliary outlet which can be used to supply power to other audio equipment The other equipment must have a power consumption rating less than 400W Power will be supplied even if this unit is turned off CAUTION Always be sure to check that the power consumption of the unit you are connecting is less than 400W FRONT PANEL PARTS AND FUNCTIONS See Fig Eq FREQUENCY SPECTRUM ANALYZE
7. the spectrum analyzer is too high turn the METER LEVEL knob down bit by bit and adjust until all displayed levels are a little above the center Compensating for deficiencies in the Listening Environment 1 N Set the control knobs and switches to the following positions OUTPUT LEVEL control Maximum 10 EQUALIZER controls Center 0 SUBSONIC FILTER switch OFF EQUALIZER MODE switch DEFEAT Meter select switches LEFT RIGHT on PINK NOISE switch ON TAPE monitor switch OFF Press the left EQUALIZER MODE switch to ON Turn the LEFT meter select switch off Equalizing adjustment is carried out channel by channel with a final overall adjustment Start playback through the RIGHT channel The spectrum analyzer will indicate the response of that channel Operate the GRAPHIC EQUALIZER controls for the RIGHT channel adjusting them until the spectrum analyzer display is flat Turn the RIGHT meter select switch off and the LEFT Switch on Operate the GRAPHIC EQUALIZER controls for the LEFT channel adjusting them until the spectrum analyzer display is flat Turn the Meter select switches for both channels on Start playback through both channels simultaneously and recheck and readjust the spectrum analyzer This completes the overall sound enhancement procedure Input Sensitivity Impedance LINE IN TAPE 1 kHz 1V 47k ohms MIC uei REIR RIS 0 3
8. Ceiling Mounting The unit should be mounted to a wall or ceiling only as recommended by the manufacturer 23 Heat The product should be situated away from heat Sources such as radiators heat registers stoves or other products including amplifiers that produce heat CAUTION READ THIS BEFORE OPERATING YOUR UNIT 1 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 lt may overheat possibly causing damage 4 Never open the cabinet If a foreign object drops into the set contact your dealer 5 Do not use force on switches knobs or cords When moving the set first turn the unit off Then gently disconnect the power plug and the cords connecting to other equipment Never pull the cord itself 6 Do not attempt to clean the unit with chemical solvents this might damage the finish Use a clean dry cloth 7 To prevent lightning damage pull out the power cord and remove the antenna cable during an electrical storm 8 Be sure to read the Troubleshooting section on common operating errors before concluding that your unit is faulty FCC INFORMATION U S A 1 IMP
9. MEASURING AND ENHANCING THE CHARACTERISTICS OF A SOUND ENVIRONMENT Every room has its own unique acoustic response characteristics and your listening environment does influence the sound you are hearing This unit lets you boost or cut the output level of your music signal at different points of the frequency spectrum before it reaches your speakers in anticipation of what the room is going to do it so the effect of room acoustics on the output signal will be effectively negated How to Measure the Acoustic Characteristics of the Room See Fig E Connect the microphone supplied as an accessory Microphone placement is crucial to proper equalization The microphone position should correspond as closely as possible to where your ears will be when listening Height of the microphone is thus also a factor 2 Set the control knobs to the following positions AMP Volume control Lowest Tone control Flat EQ 550 OUTPUT LEVEL control Maximum 10 EQUALIZER controls Center 0 SUBSONIC FILTER switch OFF EQUALIZER MODE switch gt DEFEAT Meter select switches LEFT RIGHT on PINK NOISE switch ON METER LEVEL control Maximum 10 TAPE monitor switch OFF Mic Mic switch ON 3 When the volume of the amplifier or receiver is gradually raised a buzz will be heard from the speakers This is pink noise Set the volume at an acceptable listening level At this point if the level indicated by
10. ORTANT NOTICE DO NOT MODIFY THIS UNIT This product when installed as indicated in the instructions contained in this manual meets FCC requirements Modifications not expressly approved by Yamaha may void your authority granted by the FCC to use the product 2 IMPORTANT When connecting this product to accessories and or another product use only high quality shielded cables Cable s supplied with this product MUST be used Follow all installation instructions Failure to follow instructions could i void your FCC authorization to use this product in the USA 3 NOTE This product has been tested and found to 3 comply with the requirements listed in FCC Regulations Part 15 for Class B digita devices Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices This equipment generates uses radio frequencies and if not installed and used according to the instructions found in the users manual may cause interference harmful to the operation of other electronic devices Compliance with FCC regulations does not guarantee that interference will not occur in all installations If this product is found to be the source of interference which can be determined by turning the unit OFF and ON please try to eliminate the problem by using one of
11. R This frequency spectrum analyzer divides a 30 Hz 16 kHz frequency range into 10 bands and displays the relative signa level of each band Since the frequency of each band corresponds to an equalizing control frequency you can check the equalizing effect directly O Meter select switches These switches are used to select the SPECTRUM ANALY ZER display mode These buttons allow you to independently select a spectrum analyzer display of output level on the left and right channels respectively When both buttons are pressed the spectrum analyzer displays a combined output level of both channels When the PINK NOISE switch is ON the LEFT and RIGHT switches can be used to display the pink noise level METER LEVEL control This is used to control the level displayed by the spectrum analyzer No display will appear when the knob is at the 0 position The variable level display it provides facilitates monitoring a wide range of relative output levels with ease O GRAPHIC EQUALIZER controls Independent level controls for both the left and right channels are provided for each of the ten frequency bands These are sliding type controls and in the center position provide no level boost or cut A 12 dB range of equalization is available on each frequency band Red LED indicators on each control light when the left EQUALIZER MODE switch is set to ON providing visual confirmation of level settings at a glance When the
12. Receiver When using a tape deck connected to this unit set the TAPE switch to ON 4 Start playback of the program source and adjust the volume with the amplifiers or receiver s volume control 5 Operate the GRAPIHC EQUALIZER while listening to the sound in order to obtain the optimum frequency response of the signal Check the effect by alternately pressing the EQUALIZER MODE switch ON and DEFEAT positions Equalizing record play etc See Fig il Equalizing a playback from tape deck See Fig E RECORDING EQUALIZED PROGRAM SOURCE An equalized program source can be recorded on a tape deck connected to the REC OUT jacks of this unit 1 Press the POWER switch 2 Press the left EQUALIZER MODE switch to ON 3 Turn the TAPE monitor switch to OFF 4 Operate the amplifier or receiver and select the program source to be recorded Operate the GRAPHIC EQUALIZER controls to obtain the optimum equalization of the signal 6 Set the right EQUALIZER MODE switch to REC To record without equalization set the EQUALIZER MODE switch to off 7 Adjust the recording level on the tape deck and then begin recording a Recording an Equalized Program Source See Fig Tape Monitoring See Fig If you are using a 3 head tape deck it will be possible to monitor the result of an equalized recording in real time Set the tape deck s monitor selector to Tape and the TAPE monitor switch of this unit to ON E
13. an be verified visually Frequency Dispersion Differs According to the Program Source Frequency dispersion in a source with numerous low frequency components See Fig E e Frequency dispersion in a source with numerous middle frequency components See Fig E e Frequency dispersion in a source with numerous high frequency components See Flg 10 This unit provides control of 10 bands for a total range of 30 Hz to 16 kHz Thus the GRAPHIC EQUALIZER controls can be used to finely adjust each frequency as desired In addition by using the built in pink noise generator and the spectrum analyzer together the acoustic characteristics of the listening room can be measured and compensated for Before operation e Refer to the respective owner s manuals on how to operate the amplifier receiver tape deck and so on e Set the tone controls of the connected amplifiers or receiver to FLAT or DEFEAT E START PLAY BACK OF THE PROGRAM SOURCE WHICH IS TO BE EQUALIZED Press the POWER switch 5 Set the left EQUALIZER MODE switch to ON 3 Select the program source When playing back a program source which is connected to the amplifier or receiver turn the monitor switch of this unit to OFF For signal path refer to Fig The procedure for selecting a program source from the amplifier or receiver will differ according to the amplifier or receiver Refer to the section on Connecting an Amplifier or
14. left EQUALIZER MODE switch is set to DEFEAT these controls will have no effect regardless of their settings 30 Hz slide control Moving this slide control down reduces very low frequency rumble or compensates a warped disc Moving the slide control up emphasizes the very low frequencies e 60 Hz slide control Moving this slide control down reduces AC line hum and reduces the lower tone Moving slide contro up emphasizeslow tones such as pipe organ drums bass etc e 120 Hz slide control This range supports the lower end of the music and controls overall depth The slide control may be moved down to eliminated boomy bass caused by room acoustics e 240 Hz slide control This is the middle to lower tone range but it has an effect on the overall sound Mainly the richness of the strings can be controlled When strings are overly warm under actual listening conditions moving the slide control down may help e 480 Hz slide control This range is the foundation of music including both instruments and the human voice and it controls the overall power of the sound As the slide control is moved up midrange sounds will become more forward 1 kHz slide control This range affects the presence of the music depth of tone and is especially effective when playing back vocals Moving the slide control up and down will cause the vocals to be more up front or more reserved e 2 kHz slide control This is the frequency ra
15. lg D Remove the cover 2 Insert AA RO6 battery or equivalent making sure that the positive and negative poles are facing in the right direction 8 After the battery has been changed snap the lid back on If the battery runs down the sensitivity of the microphone will decrease Change the battery as soon as it starts to run down Battery Cautions if the battery is replaced incorectly dangerous leakage or collosion may result Be especially careful of the following points When replaceing e Insert the battery with correct and indications correctly into the battery compartment Rechargeable batteries There are two types of batteries rechargeable and nonrechargeable Check the cautions label on the battery before use To avoid accidents Never disassemble heat or throw a battery into a fire When disposing deal with batteries as inflammable matter e Do not short the and terminals directly When battery leakage occurs Wipe off the liquid in the battery compartment and replace the battery with new one E THE SPECTRUM ANALYZER The spectrum analyzer displays the frequency dispersion of signals for direct monitoring Monitor levels can be adjusted with the METER LEVEL control for enhanced readability of the level adjustment Enhancing Sound Quality As the equalizer control frequencies are in agreement with the frequency divisions of the spectrum analyzer equalization effects c
16. mV 47k ohms Rated Output Impedance LINE OUT REC OUT 1 kHz OUTPUT LEVEL Max 1V 600 ohms Frequency Response 10 Hz 35 kHz 0 5 dB Center Frequencies 30 Hz 60 Hz 120 Hz 240 Hz 480 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz Equalizer Control Range 12 dB Signal to Nolse Ratio Input short IHF A Network At 1V output More than 105 dB Total Harmonic Distortion 1 kHz 1V output Less than 0 005 Maximum Output 20 Hz 20 kHz More than 7V Subsonic Filter Cutoff 15 Hz 12 dB Oct Pink Noise Output 150 mV RMS Display rana 10 bands Switchable between L or R L R Power Requirements General model 110 120 220 240V 50 60 Hz Europe model 220V 50 Hz Australia and U K models 240V 50 Hz U S A and Canada models 120V 60 Hz Power Consumption 15W Dimensions W x H x D 435 x 102 x 232 mm 17 1 8 x 4 x 9 1 8 Weight erem 3 7 kg 8 Ibs 2 oz Accessories Pin plug cords 2 MM 110 Electret Condenser Mic Mic stand Dry battery AA R06 type 1 Specifications subject to change without notice Before assuming that your amplifier or receiver is faulty check by following troublesho
17. moving covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified service personnel 19 Damage Requiring Service Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions a When the power supply cord or plug is damaged b If liquid has been spilled or objects have fallen into the product c If the product has been exposed to rain or water d If the product does not operate normally by following the operating instructions adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in dangerous and will often require extensive work by a qualified technician to restore the product to its normal operation e If the product has been dropped or damaged in any way and f When the product exhibits a distinct change in performance this indicates a need for service 20 Replacement Parts When replacement parts are required 21 be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards Safety Check Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition 22 Wall or
18. nge where the human ear is most sensitive Boosting the level slightly will add brilliance crispness etc to instruments Cutting the level slightly makes for easy listening 4 kHz slide control The human ear is also highly sensitive in this range Mainly effective for increasing decreasing the harmonics of the primary tone Boosting this range a bit makes strings more intense Over intense tiresome music becomes easy listening when the slide control is moved down e 8 kHz slide control High frequency range Strings horns etc will be emphasized and this gives a slight difference in tone glaze and quality Moving the slide control down reduces over emphasized consonants in vocals and objectionable tape hiss Moving the slide control up on the other hand improves the sharpness of such instruments as cymbals e 16 kHz slide control Super high frequency range This affects high harmonics rather than the fundamental tones of the instruments themselves and has an effect on the delicacy and atmosphere of the music Moving the slide control up adds a delicate fresh sound to cymbals triangles etc OUTPUT LEVEL control This controls LINE OUTPUT level of this unit REC OUT level cannot be changed 6 EQUALIZER MODE switches Selects the equalization mode DEFEAT No equalization flat response is achieved ON The equalizer control indicators light up and equalization can be effected REC The signal routed to the Rec Out
19. oting list which details corrective action which you can take yourself If the fault persists or is not mentioned in the list turn off and disconnect the unit immediately and get in touch with your nearest Yamaha dealer Fault j i Cause Power is not supplied even through the e The power plug is not securely plugged in Power switch is turned on No sound is heard The TAPE Monitor switch is not set correctly e Improper connections to INPUT jacks e The OUTPUT LEVEL control is set too low There is no sound from one speaker The pin plug is not properly connected Sound quality cannot be enhanced e The EQUALIZER MODE switch is in the DEFEAT position Spectrum analyzer will not light up The METER LEVEL control is set to O e The meter select switches are not set properly e Set these switches correctly e Plug it in securely e Set the switch correctly Make sure all connections are properly done e Move the OUTPUT LEVEL control Check the connections Set the switch to ON e Slide the METER LEVEL control to the right YAMAHA 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 R OF GERMANY YAMAHA ELECTRONIQUE FRANCE S A RUE AMBROISE
20. polarized plug 13 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the product 14 Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the antenna or cable system This will prevent damage to the product due to lightning and power line surges 15 Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or where it can fall into such power lines or circuits When installing an outside antenna system extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal 16 Overloading Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock 17 Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the product 18 Servicing Do not attempt to service this product yourself as opening or re
21. rives to produce products that are both user safe and environmentally friendly We sincerely believe that our products meet these goals However in keeping with both the spirit and the letter of various statutes we have included the preceding messages and others in various locations in this manual Power plug from other unit Tapedeck U S A Panada and General models only A Unswitched can be supplied to other components with a combined power ES consumption of up to 400W E IDE AAA O O LINE IN LINEOUT E No 8 U S A model To AC outlet Connect to an AC outlet or to the amplifier or receiver auxiliary power outlet The power consumption of this unit is 15W Check the power rating of the amplifier or receiver outlet before use m 4 A A PA ERR UN EN or The accessory jacks are provided on some of YAMAHA s newest amplifiers and receivers q r gs EEE Amplifier or receiver a Integrated amplifier i Integrated amplifier Control amplifier PRE OUT RECEIVE EQ 550 EI tel LINE OUT LINE IN EQ 550 See UR y Eyes ceni MAIN IN LINE OUT Power amplifier Q P I s m Q E N m D n E 3 o 5 2 m
22. terminals is equalized O TAPE monitor switch Used to select a tape deck for tape monitoring SUBSONIC FILTER switch This switches the subsonic filter on and off to cut frequencies in the 15 Hz range as selected by the SUBSONIC FILTER controls PINK NOISE switch Pink noise which is emitted by a built in generator is a random noise signal which is distributed at an even level at all frequencies and when monitored through the supplied microphone allows you to measure the acoustic response characteristics of the listening environment jack This is the input terminal for the microphone to be used with the spectrum analyzer to measure the acoustic response characteristics of the listening environment O POWER switch This switch turns the power to this unit on and off The switch is pressed once to turn the power on and a second time to turn the power off E THE MM 110 ELECTRET CONDENSER MICROPHONE See Fig 5 An electret condenser microphone for use in measuring the acoustic response characteristics of the listening environment is provided with this unit Microphone input will be displayed on the spectrum analyzer when the microphone is connected to the front panel MIC jack the MIC switch is turned on and a signal of level high enough to be measured is output through the speakers Remove the battery from the microphone if you do not expect to be using it for some time Changing the battery See Fig
23. the following measures Relocate either this product or the device that is being affected by the interference Utilize power outlets that are on different branch circuit breaker or fuse circuits or install AC line filter s In the case of radio or TV interference relocate reorient the antenna If the antenna lead in is 300 ohm ribbon lead change the lead in to coaxial type cable If these corrective measures do not produce satisfactory results please contact the local retailer authorized to distribute this type of product If you can not locate the appropriate retailer please contact Yamaha Electronics Corp U S A 6660 Orangethorpe Ave Buena Park CA 90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries MSc P n WARNING CHEMICAL CONTENT NOTICE The solder used in the manufacture of this product contains LEAD In addition the electrical electronic and or plastic where applicable components may also contain traces of chemicals found by the California Health and Welfare Agency and possibly other entities to cause cancer and or birth defects or other reproductive harm DO NOT REMOVE ANY ENCLOSURE COMPONENTS There are no user serviceable parts inside All service should be performed by a service representative authorized by Yamaha to perform such service IMPORTANT MESSAGE Yamaha st
24. the manufacturer A product and cart combination should be moved with care Quick stops excessive lt force and uneven surfaces may cause the X product and cart combination to overturn NS NA gt cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating and these openings must not be blocked or covered The openings should never be blocked by placing the product on a bed sofa rug or other similar surface This product should not be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer s instructions have been adhered to 11 Power Sources This product should be operated only from the type of power source indicated on the marking label If you are not sure of the type of power supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions 12 Grounding or Polarization This product may be equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This is a safety feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the

YAMAHA EQ-550 Manual

Contents

Download Pdf Manuals

Related Search

Related Contents