ONKYO A-9755
Contents
1. Notes e Do not connect a component that does not have an output volume control because the sound will be out put at maximum volume and may damage the A 9755 and your speakers e To turn on the MAIN IN function press the POWER AMP DIRECT MAIN IN button for 3 seconds until the indicator lights up page 17 Connecting 21 Components If you connect other Onkyo components to the A 9755 A 9555 with the appropriate RI and audio cables you can use the following system functions RI cables are special cables solely for use with Onkyo products no RI cables are supplied with the A 9755 A 9555 Auto Power On When you turn on the power or start playback on a com ponent that s connected to the A 9755 A 9555 the A 9755 A 9555 will turn on automatically And when you set the A 9755 A 9555 to Standby all connected components will go on Standby as well the A 9755 A 9555 s POWER switch must be set to ON for this to work Direct Change When playback is started on an audio component con nected via RI the A 9755 A 9555 will automatically select that component as the input source Remote Control Operation You can control all components in your system by using the A 9755 A 9555 s remote controller See page 8 for more information With RI Remote Interactive you can control your fR21 compatible Onkyo CD player Tuner and so on with the A 9755 A 9555 s remote controller To use RI you must make a2. INTEGRAN IER MODEL NO A 9755 SPEAKERS A RIGHT RIGHT This illustration is for A 9755 LINE input This analog audio input is for connecting a compo nent s analog audio output TV etc MAIN IN A 9755 only This analog audio input is for connecting a separate preamp when you want to use the A 9755 as a power amplifier Caution Do not connect a component that does not have an output volume control such as a CD player because the sound will be output at maximum vol ume and may damage the A 9755 and your speak ers 4 RI REMOTE CONTROL jacks These RI Remote Interactive jacks can be con nected to the RI jacks on your other Onkyo audio components The A 9755 A 9555 s remote control ler can then be used to control all of your compo nents To use RI you must make an analog audio connection between the A 9755 A 9555 and each component See pages 10 13 for connection information Remote Controller i RANDOM REPEA Q o _ SS JOGO OOOO Tr C3 15 I 1 Dras ALBUM H 2 Sao Sait ONKYO RC 636S 7 Hi z fa Z E Zo j ggn Note that the buttons with parenthesized numbers con trol the A 9755 A 9555 while the buttons without parenthesized n
3. A and B Only connect speakers with an impedance of 8 ohms or more but less than 16 ohms If you use speakers with a lower impedance and use the A 9755 A 9555 at high volume levels for a long period of time the built in protection circuit may be activated e Disconnect the power cord from the wall outlet before making any connections e Read the instructions supplied with your speakers e Pay close attention to speaker wiring polarity In other words connect positive terminals only to positive terminals and negative terminals only to nega tive terminals If you get them the wrong way around the sound will be out of phase and will sound unnatural e Unnecessarily long or very thin speaker cables may affect the sound quality and should be avoided e Be careful not to short the positive and negative wires Doing so may damage the A 9755 A 9555 e Don t connect more than one cable to each speaker termi nal Doing so may damage the A 9755 A 9555 e Don t connect a speaker to more than one pair of speaker terminals Connecting the Speaker Cables 7 Strip about 15 mm 5 8 15 mm inch of insulation from the ends of the speaker a cables and twist the bare lt wires tightly as shown 2 Unscrew the terminal 3 Fully insert the bare wires 4 Screw the terminal tight The following illustration shows which speaker should be connected to each pair of term
4. component INPUT A W buttons 15 These buttons are used to select from the following input sources LINE HDD PHONO CD TUNER TAPE or MD DISPLAY button This button is used to change the information dis played on a CD or MD component When the input source is HDD this button turns on the display backlight on the HDD component 0 MUTING button 15 This button is used to mute the A 9755 A 9555 Previous and Next lt 4 buttons These buttons are used to select the previous or next track on a CD MD or HDD component Pressing them repeatedly selects earlier or later tracks On a cassette deck they re used for rewind and fast for ward SCROLL button This button is used to scroll text displayed on an MD component When the input source is HDD this button turns on the display backlight on the HDD component MENU SELECT A V buttons MENU button Displays the HDD component menu SELECT button Confirms the option on the HDD component menu AJ W buttons Selects the option on the HDD component menu Using the Remote Controller Point the remote controller toward the remote control sensor Remote control sensor About 5 m 16 feet Notes e The remote controller may not work reliably if the A 9755 A 9555 is subjected to bright light such as direct sunlight or inverter type fluorescent lights Keep this in mind when installing e If another remote controlle
5. Controller Connections Connecting the A 9755 A 9555 Connecting Your Speakers Before Making any Connections Audio Components Connecting a Turntable Connecting a CD Player Connecting a Tuner Connecting a Cassette Deck Connecting an MD Recorder Connecting a Remote Interactive Dock Connecting a TV or Other Component with an Audio Output Connecting a Preamp A 9755 only Connecting fR1 Components Enjoying Audio Sources Turning On the A 9755 A 9555 Selecting Speaker Listening to Components Muting the A 9755 A 9555 remote controller only Using Headphones Using the Tone Controls Setting the PURE DIRECT Function 16 Adjusting the Bass Adjusting the Treble Loudness Control Using the MAIN IN Function A 9755 Recording Others TroubleShOoting sccsssecssseesssserenseeeeens Specifications 05 5 icccoscsseccsssacsssesssersecesesses A 9755 Integrated Digital Amplifier Q 150 W Ch into 8 ohms DIN 300 W Ch into 4 ohms JEITA 0 Exclusive Onkyo VL Digital Technology Q Pure Stream Power Supply 2 Transformers Q All Discrete Output Stage Circuitry L Low Impedance Thick Bus Plate Q Optimum Gain Volume Circuitry Q Audiophile Grade Capacitor Q Precision Motor Volume Control Q Tone Control Bass Treble Loudness On Off Q Pure Direct Mode Q Discrete Phono Equalizer Q 7 Gold Plated Audio Inputs and 2 Outputs Q Main In Terminal Q Blue Illuminated Volume Control Hi Rigidity Anti Resonant Ch
6. ML Selecting Speaker SPEAKERS OFF A A B You can select which set of speakers outputs sound OFF Select OFF if you do not connect any speaker A To output sound from the speakers connected to the SPEAKERS A terminals turn the SPEAKERS selector to the A position B To output sound from the speakers connected to the SPEAKERS B terminals turn the SPEAKERS selector to the B position A B To output sound from all connected speakers turn the SPEAKERS selector to the A B position Note If the Volume indicator flashes quickly make sure that the speakers are connected correctly Enjoying Audio Sources Continued Listening to Components Input selector Volume SPEAKERS selector VOLUME AIV 1 Turn the input selector to select the component that you want to listen to LINE Select to listen to the compo nent connected to the LINE jacks HDD Select to listen to the compo nent connected to the HDD jacks PHONO Select to listen to the turnta ble connected to the PHONO jacks aR CD Select to listen to the component weur lt connected to the CD jacks ve TUNER Select to listen to the compo D nent connected to the TUNER jacks TAPE Select to hear the component connected to the TAPE IN jacks MD Select to listen to the component connected to the MD IN jacks When selecting with the remote con troller use the INPUT A V but A 9755 A 955
7. inverter type florescent lights Relocate if necessary page 9 e If the A 9755 A 9555 is installed in a rack or cabinet with colored glass doors the remote controller may not work reliably when the doors are closed page 9 Can t control other components e If it s an Onkyo component make sure that the RI cable and analog audio cable are connected properly Connecting only an RI cable won t work page 13 Troubleshooting Continued Recording Can t record The component connected to the MAIN IN jacks cannot be recorded e When using the A 9755 as a power amplifier MAIN IN function recording is not possible Others The Volume control has no effect e When using the A 9755 as a power amplifier MAIN IN function the Volume control has no effect Adjust the volume on the connected preamp instead The Muting function doesn t work e When using the A 9755 as a power amplifier MAIN IN function the Muting function does not work Use the muting function on the connected preamp instead The A 9755 A 9555 contains a microcomputer for signal processing and control functions In very rare situations severe interference noise from an external source or static electricity may cause it to lock up In the unlikely event that this happens unplug the power cord from the wall outlet wait at least ten seconds and then plug it back in again Onkyo is not responsible for damages such as CD rental fees due to
8. kHz DIN 300 W 300 W 4 Q 1 kHz JEITA 330 W 330 W 3 Q Front 270 W 270 W 4 Q Front 170 W 170W 8 Q Front 0 08 1 kHz 1 W 25 Front 1 kHz 8 Q 200 mV 50 KQ CD 2 5 mV 50 kQ PHONO MM 200 mV 2 2 kQ REC OUT 70 mV MM kHz 0 5 10 Hz 60 kHz 1 dB 3 dB CD 10 dB 10 dB 100 Hz BASS 10 dB 10 dB 20 kHz TREBLE 10 dB 50 Hz LOUDNESS 2 dB 10 kHz LOUDNESS 100 dB CD IHF A 70 dB PHONO IHF A 4 16Q AC 230 240 V 50 Hz AC 220 230 V 50 60 Hz 125 W 0 3 W 435 x 144 x 431 mm 17 6 kg PHONO CD TUNER TAPE MD HDD LINE MAIN IN MD TAPE 2 A B 1 Specifications and features are subject to change without notice ONKYO CORPORATION 100 W 100 W 8 Q 1 kHz DIN 200 W 200 W 4 Q 1 kHz JEITA 230 W 230 W 3 Q Front 200 W 200W 4 Q Front 120 W 120W 8 Q Front 0 08 1 kHz 1 W 25 Front 1 kHz 8 Q 200 mV 50 kQ CD 2 5 mV 50 kQ PHONO MM 200 mV 2 2 kQ REC OUT 70 mV MM 1 kHz 0 5 10 Hz 60 kHz 1 dB 3 dB CD 10 dB 10 dB 100 Hz BASS 10 dB 10 dB 20 kHz TREBLE 10 dB 50 Hz LOUDNESS 2 dB 10 kHz LOUDNESS 100 dB CD IHF A 70 dB PHONO IHF A 4 16 Q AC 230 240 V 50 Hz AC 220 230 V 50 60 Hz AC 120 V 60 Hz 120 W 0 3 W 435 x 148 x 431 mm 13 0 kg PHONO CD TUNER TAPE MD HDD LINE MD TAPE 2 A B 1 SN 29344108 C Copyright 2005 ONKYO CORPORATION Japan All rights
9. mark ings identifying the terminals in your plug proceed as follows The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red IMPORTANT The plug is fitted with an appropriate fuse If the fuse needs to be replaced the replacement fuse must approved by ASTA or BSI to BS1362 and have the same ampere rating as that indicated on the plug Check for the ASTA mark or the BSI mark on the body of the fuse If the power cord s plug is not suitable for your socket outlets cut it off and fit a suitable plug Fit a suitable fuse in the plug For European Models Declaration of Conformity We ONKYO EUROPE ELECTRONICS GmbH LIEGNITZERSTRASSE 6 82194 GROEBENZELL GERMANY declare in own responsibility that the ONKYO product described in this instruction manual is in compliance with the corresponding technical standards such as EN60065 EN55013 EN55020 and EN61000 3 2 3 3 GROEBENZELL GERMANY K MIYAGI ONKYO EUROPE ELECTRONICS GmbH Table of Contents Features Introduction Important Safety Instructions Precautions Table of Contents Features Supplied Accessories Connecting the Supplied Power Cord Installing the Remote Controller s Batteries Front amp Rear Panels Front Panel Rear Panel Remote Coniroller Using the Remote
10. reserved Sales amp Product Planning Div 2 1 Nisshin cho Neyagawa shi OSAKA 572 8540 JAPAN Tel 072 831 8023 Fax 072 831 8124 ONKYO U S A CORPORATION 18 Park Way Upper Saddle River N J 07458 U S A Tel 201 785 2600 Fax 201 785 2650 http www us onkyo com ONKYO EUROPE ELECTRONICS GmbH Liegnitzerstrasse 6 82194 Groebenzell GERMANY Tel 49 8142 4401 0 Fax 49 8142 4401 555 http Awww eu onkyo com ONKYO EUROPE UK Office Suite 1 Gregories Court Gregories Road Beaconsfield Buckinghamshire HP9 1HQ UNITED KINGDOM Tel 44 0 1494 681515 Fax 44 0 1494 680452 ONKYO CHINA LIMITED Units 2102 2107 Metroplaza Tower 223 Hing Fong Road Kwai Chung N T HONG KONG Tel 852 2429 3118 Fax 852 2428 9039 http www ch onkyo com ONKYO HOMEPAGE http www onkyo com Printed in Japan D0510 1 29 34410 8
11. to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus Don t put candles or other burning objects on top of this unit Batteries Always consider the environmental issues and fol low local regulations when disposing of batteries If you install the apparatus in a built in installation such as a bookcase or rack ensure that there is ade quate ventilation Leave 20 cm 8 of free space at the top and sides and 10 cm 4 at the rear The rear edge of the shelf or board above the apparatus shall be set 10 cm 4 away from the rear panel or wall creating a flue like gap for warm air to escape Precautions 1 Recording Copyright Unless it s for personal use only recording copyrighted material is illegal with out the permission of the copyright holder 2 AC Fuse The AC fuse inside the unit is not user serviceable If you cannot turn on the unit contact your Onkyo dealer 3 Care Occasionally you should dust the unit all over with a soft cloth For stubborn stains use a soft cloth dampened with a weak solution of mild deter gent and water Dry the unit immediately afterwards with a clean cloth Don t use abrasive cloths thin ners alcohol or other chemical solvents because they may damage the finish or remove the panel let tering 4 Power WARNING BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME READ THE FOLLOWING SEC TION CAREFULLY AC outlet vo
12. with the A 9755 A 9555 and should not be used with any other device e Never have the power cord disconnected from the A 9755 A 9555 while the other end is plugged into the wall outlet Doing so may cause an electric shock Always connect by plugging into the wall outlet last and disconnect by unplugging from the wall outlet first DO NOT connect the B power cord at this time To wall outlet Installing the Remote Controller s Batteries To open the battery compartment press the small hollow and slide open the cover 2 Insert the two supplied batteries AA R6 in accordance with the polarity diagram inside the battery compartment 3 Slide the cover shut Notes e If the remote controller doesn t work reliably try replacing the batteries e Don t mix new and old batteries or different types of batteries e If you intend not to use the remote controller for a long time remove the batteries to prevent damage from leakage or corrosion e Flat batteries should be removed as soon as possible to prevent damage from leakage or corrosion Front amp Rear Panels Front Panel A 9755 only INTEGRATED AMPLIFIER A 9755 For detailed information refer to the pages in parentheses POWER switch 14 This is the main power switch When set to OFF the A 9755 A 9555 is completely shutdown When set to ON the A 9755 A 9555 can be set to On
13. 5 Remote controller tons 2 Start playback on the selected component A 9755 To adjust the volume use the A 9555 A 9755 A 9555 s Volume control or the remote conitroller s VOL UME A V buttons Turn Volume control clockwise to Remote increase the volume or counterclock controller wise to decrease the volume A id Note y When using the A 9755 as a power amplifier MAIN IN function the Volume control has no effect n VOLUME Muting the A 9755 A 9555 remote controller only You can temporarily mute the output of the A 9755 A 9555 1 UNE Press the remote controller s MUTING button ex The A 9755 A 9555 is muted The Volume indicator flashes To unmute the A 9755 A 9555 press the MUTING button again Notes e The Mute function will be cancelled if the remote controller s VOLUME buttons are pressed or the A 9755 A 9555 is set to Standby e When using the A 9755 as a power amplifier MAIN IN function the Muting function is disabled Using Headphones You can connect a pair of stereo headphones 1 4 inch phone plug to the A 9755 A 9555 s PHONES jack for private listening Go PHONES a e Always turn down the volume before connecting your headphones e All connected speakers are turned off while the head phones plug is inserted in the PHONES jack e The headphones output no sound while the MAIN IN function is
14. ONKYO Contents Integrated Amplifier ainele Ua ela e 2 Instruction Manual Connections eee 10 Enjoying Audio Sources Thank you for purchasing an Onkyo Integrated Ampli fier Please read this manual thoroughly before making Troubleshooting 00eee 18 connections and plugging in the unit Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new Integrated Amplifier Please retain this manual for future reference Specifications Back cover page WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS WARNING AVIS RISK OF ELECTRIC SHOCK f RISQUE DE CHOC ELECTRIQUE DO NOT OPEN NE PAS OUVRIR TO RAIN OR MOISTURE 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 equilateral triangle is intended to alert the user to the AN presence of uninsulated dangerous voltage within A intended to alert the user to the presence of important The lightning flash with arrowhead symbol within an 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 operating and maintenance servicing instructions in the literature accompanying the appliance Importan
15. T function is on the Loud ness control is disabled Enjoying Audio Sources Continued Using the MAIN IN Function A 9755 only You can use the A 9755 as power amplifier with a sepa rate preamp See page 13 for connection information 1 POWER AMP DIRECT MAIN IN Press the POWER AMP DIRECT MAIN IN button for 3 seconds ee MANN until the MAIN IN indicator lights up Ex The MAIN IN function comes on and the MAIN IN indicator lights up While the MAIN IN function is on only audio from components con nected to the preamp can be output To turn the MAIN IN function off press the POWER AMP DIRECT MAIN IN button for 3 seconds until the MAIN IN indicator goes off Notes e Do not connect a component that does not have an output volume con trol to the MAIN IN jacks and use the MAIN IN function because the sound will be output at maximum volume and may damage the A 9755 and your speakers e While the MAIN IN function is on the A 9755 s Volume control has no effect Before you turn off the MAIN IN function make sure that the Volume control is not turned up high to prevent any loud surprises e While the MAIN IN function is on the following A 9755 functions are disabled Volume control Input selector Remote control operation RI function LOUDNESS control Recording Muting Operate the connected preamp for some of these functions including controlling volume selec
16. assis and Brass Stabilizers Q Gold Plated Banana Plug Compatible Transparent Speaker Terminals L Heavy Duty Power Cord Q Compatible with RI Dock for the iPod Q RI Remote Interactive Remote Control A 9555 Integrated Digital Amplifier Q 100 W Ch into 8 ohms DIN 200 W Ch into 4 ohms JEITA 0 Exclusive Onkyo VL Digital Technology Q Pure Stream Power Supply Q Discrete Output Stage Circuitry Q Low Impedance Thick Bus Plate Q Optimum Gain Volume Circuitry Q Precision Motor Volume Control Q Tone Control Bass Treble Loudness On Off Q Pure Direct Mode Q Discrete Phono Equalizer 7 Audio Inputs and 2 Outputs Hi Rigidity Anti Resonant Chassis Q Aluminum Volume and Selector Knob Banana Plug Compatible Speaker Terminals Q Compatible with RI Dock for the iPod Q RI Remote Interactive Remote Control Supplied Accessories Make sure you have the following accessories Remote controller amp two batteries AA R6 A 9755 RC 636S A 9555 RC 627S Power cord Power cord varies from country to country In catalogs and on packaging the letter added to the end of the product name indicates the color of the A 9755 A 9555 Specifications and operation are the same regardless of color Connecting the Supplied Power Cord Plug the supplied power cord into this AC INLET e Do not use a power cord other than the one supplied with the A 9755 A 9555 The power cord supplied is designed for use
17. ent Stop W Stops playback on a CD MD HDD or cassette component Note If you have connected any Onkyo double cassette deck you can control deck B Reverse and Fast Forward lt lt buttons These buttons are used for reverse and fast forward on a CD MD or HDD component RANDOM button This button is used to set the random playback func tion on a CD MD or HDD component On a cas sette deck the button is used to switch the DOLBY mode Remote Controller Continued REPEAT button This button is used to set the repeat playback func tions on a CD MD or HDD component On a cas sette deck the button is used to switch the repeat playback mode single side only both sides D PLAYLIST AJ W buttons Selects a playlist stored on the player on an HDD component 2 ALBUM AJ W buttons Selects an album stored on the player on an HDD component 3 PLAY MODE button This button sets the playback mode on an MD com ponent GROUP SEARCH button This button selects groups on an MD component On a CD player it is used to search and select a track number 5 MEMORY button This button is used to set the memory playback function on a CD or MD component With memory playback you can make a custom program ENTER button This button is used to confirm the settings on a CD or MD component a7 CLR button This button is used to remove the last track from the memory function program etc on a CD or MD
18. eriods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 16 T7 18 Damage Requiring Service Unplug the apparatus from the wall outlet and refer servicing to qualified service personnel under the following conditions A When the power supply cord or plug is dam aged B If liquid has been spilled or objects have fallen into the apparatus C If the apparatus has been exposed to rain or water D If the apparatus 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 damage and will often require extensive work by a qualified technician to restore the apparatus to its normal operation E If the apparatus has been dropped or damaged in any way and F When the apparatus exhibits a distinct change in performance this indicates a need for service Object and Liquid Entry Never push objects of any kind into the apparatus through openings as they may touch dangerous volt age points or short out parts that could result in a fire or electric shock The apparatus shall not be exposed
19. inals Right Speaker set A Left speaker speaker ome ome RIGHT ii LEFT C3 DBO fe ye OO OO on RIGHT iii Leer A 9755 A 9555 OD OO Right Speaker set B Left speaker speaker Connecting the A 9755 A 9555 Continued Before Making any Connections e Always refer to the instructions that came with the component that you are connecting Do not plug in the power cord until all connec tions have been properly made Do not bind audio cables with power cords and speaker cables Doing so may adversely affect the sound quality To prevent interference keep power cords and speaker cables away from the tuner s antenna Audio Components Connecting a Turntable The A 9755 A 9555 s PHONO input jacks are for use with moving magnet MM type cartridges Use an analog audio cable to connect the A 9755 A 9555 s PHONO L R jacks to the audio out put jacks on the turntable as shown PHONO MM AUDIO OUT po Ground wire i Notes e Ifthe turntable has a ground wire connect it to A 9755 A 9555 s GND terminal With some turnta bles connecting the ground wire may cause hum in which case it should be disconnected e If the turntable has a moving coil MC type car tridge you ll need a commercially available MC phono preamp In this case connect the turntable to
20. ing the remote controller s ON button once does not turn on all of the system components You need to press the remote controller s ON button again Alternatively you can set the A 9755 A 9555 so that all components do turn on simultaneously page 14 The STANDBY indicator is flashing The amp protection circuit has been activated Remove the power cord from the wall outlet immediately and contact your Onkyo dealer Audio There s no sound or it s very quiet e When the A 9755 is used as a power amplifier MAIN IN indicator lights up the sound from components connected to the preamp is output To output the sound from a component that s connected to the A 9755 or to use the A 9755 as a preamp press the POWER AMP DIRECT MAIN IN button for 3 seconds until the MAIN IN indicator goes off page 17 e Make sure that all audio plugs are pushed in all the way page 11 e Make sure that the inputs and outputs of all components are connected properly e Make sure that the polarity of the speaker cables is correct and that the bare wires are in contact with the metal part of each speaker terminal page 10 e Make sure that the correct input source is selected page 15 e Ifthe Volume indicator flashes slowly press the remote controller s MUTING button to unmute the A 9755 A 9555 page 15 e Make sure that none of the cables are bent twisted or damaged e To use a turntable with a moving coil MC type cartridge y
21. ltages vary from country to country Make sure that the voltage in your area meets the voltage requirements printed on the unit s rear panel e g AC 230 V 50 Hz or AC 120 V 60 Hz Some models have a voltage selector switch for compatibility with power systems around the world Before you plug in such a model make sure that the voltage selector is set to the correct voltage for your area 5 Never Touch this Unit with Wet Hands Never handle this unit or its power cord while your hands are wet or damp If water or any other liquid gets inside this unit have it checked by your Onkyo dealer 6 Handling Notes e If you need to transport this unit use the original packaging to pack it how it was when you origi nally bought it e Do not leave rubber or plastic items on this unit for a long time because they may leave marks on the case e This unit s top and rear panels may get warm after prolonged use This is normal e If you do not use this unit for a long time it may not work properly the next time you turn it on so be sure to use it occasionally For British models Replacement and mounting of an AC plug on the power supply cord of this unit should be performed only by qualified service personnel IMPORTANT The wires in the mains lead are coloured in accordance with the following code Blue Neutral Brown Live As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured
22. n analog audio con nection between the A 9755 A 9555 and each audio component A 9755 A 9555 it Zz Onkyo CD player DX 7555 etc RI connector Onkyo cassette deck etc RI connector Z AAN Ke w 1 Remote Interactive Dock etc RI Remote control cable Notes Push each plug in all the way to make a good connec tion Use only dedicated RI cables for RI connections no RI cables are supplied with the A 9755 A 9555 The A 9755 A 9555 has two RI jacks They re all the same so you can use either of them RI jacks should be connected only to Onkyo compo nents Connecting them to another manufacturer s component may cause the A 9755 A 9555 to mal function Some components may not support all RI functions See the manuals supplied with your other Onkyo components for more information When using the A 9755 as a power amplifier MAIN IN function the RI system functions are unavailable 13 14 Enjoying Audio Sources Turning On the A 9755 A 9555 POWER STANDBY indicator STANDBY ON Press the POWER switch The A 9755 A 9555 retains the power mode on standby in which the ampli fier was the last time you turned off the system Notes The A 9755 A 9555 is shipped with the POWER switch in the OFF position ML When the power cord is connected for the very first time or the POWER switch is set to ON p
23. nalog audio output jacks and use another analog audio cable to connect the A 9755 A 9555 s MD OUT L R jacks to the MD recorder s analog audio input jacks as shown OC Oo 5 1353 5 F o O00 IN OUT Connecting a Remote Interactive Dock RI Dock Use an analog audio cable to connect the A 9755 A 9555 s HDD IN L R jacks to the RI Dock s analog audio output jacks and use an RI cable to con nect the A 9755 A 9555 s RI jack to the RI Dock s RI jack as shown RI REMOTE CONTROL Remote Interactive Dock S R L AUDIO OUT Note If you use the Onkyo Remote Interactive Dock DS A1 flip the RI MODE switch to HDD which is located on the underside Connecting a TV or Other Component with an Audio Output Use an analog audio cable to connect the A 9755 A 9555 s LINE L R jacks to the analog audio output jacks on the TV or other component as shown AUDIO OUT Note If your TV has no audio output you can connect the A 9755 A 9555 to an audio output on your VCR and use its tuner Connecting the A 9755 A 9555 Continued Connecting a Preamp A 9755 only The A 9755 can be used as a power amplifier with a separate preamp In this case use an analog audio cable to connect the A 9755 s MAIN IN jacks to the preamp s output jacks Connect the speakers to the A 9755 and connect the playback components to the preamp
24. on 15 16 Enjoying Audio Sources Continued Using the Tone Controls While the MAIN IN function is on the A 9755 s tone controls have no effect PURE DIRECT TREBLE BASS Setting the PURE DIRECT Function The PURE DIRECT button turns the PURE DIRECT PURE DIRECT function on and off Q When the PURE DIRECT function is AS off the tone controls can be used to adjust the sound and the PURE DIRECT indicator goes off When the PURE DIRECT function is on the tone con trols are bypassed so you can enjoy a pure sound The PURE DIRECT indicator lights up Adjusting the Bass The BASS control adjusts bass BASS sounds Turn it up to make them louder Turn it down to make them quieter Normally it should be set midway Q Adjusting the Treble The TREBLE control adjusts treble TREBLE sounds Turn it up to make them louder Turn it down to make them quieter Normally it should be set midway Q Loudness Control By pressing the LOUDNESS button LOUDNESS both treble and bass are reinforced when the volume is turned down low NN Use this button according to the music source and according to the listening area Its purpose is to enrich the natural sound effects of both the treble and bass The indicator lights up when the LOUDNESS function is on e When using the A 9755 as a power amplifier MAIN IN function the Loudness control doesn t work e When the PURE DIREC
25. or Standby STANDBY indicator 14 This indicator lights up when the A 9755 A 9555 is in Standby mode Only the remote controller can be used to set the A 9755 A 9555 to Standby PHONES jack 15 This phone jack is for connecting a standard pair of stereo headphones for private listening SPEAKERS selector 14 This control is used to select which speaker set out puts sound You can switch the output speaker set between four options OFF A B and A B BASS control 16 This control is for adjusting the level of bass sounds TREBLE control 16 This control is for adjusting the level of treble sounds T LOUDNESS button and indicator 16 This button is for reinforcing both treble and bass when the volume is turned down low Pressing the button turns the LOUDNESS function on and off The indicator lights up when the LOUDNESS func tion is on Volume control and indicator 15 This control is used to adjust the volume of the A 9755 A 9555 The indicator flashes while the sound is muted It flashes more quickly if any of the speakers is left unconnected This illustration is for A 9755 PURE DIRECT button and indicator 16 This button turns the PURE DIRECT function on and off The indicator lights up when the PURE DIRECT function is on POWER AMP DIRECT MAIN IN button and indicator 17 A 9755 only When the A 9755 is used as a power amplifier with a separate preamp this button is used to se
26. osition the A 9755 A 9555 will turn on e When it s turned on the A 9755 A 9555 outputs no sound for about five seconds This allows the circuits to stabilize 1 A 9755 A 9555 O POWER ON m oF GS STANDBY To set the A 9755 A 9555 to Standby press the STANDBY button on the remote controller The STANDBY indicator lights up To turn the A 9755 A 9555 on press the ON button on the remote controller The STANDBY indicator goes off 2 Remote controller STANDBY Q gt as If the A 9755 A 9555 is connected to other compo nents via RI press the remote controller s ON but ton once to turn on the A 9755 A 9555 and press it again to turn on the other components Turning on all system components simultaneously You can set the A 9755 A 9555 so that all connected RI components are turned on with just one press of the remote controller s ON button To do this turn on the A 9755 A 9555 and then press and hold the remote con troller s ON button for 16 seconds until the A 9755 A 9555 switches to Standby mode You will then be able to turn on the A 9755 A 9555 and all sys tem components with just one press of the remote con troller s ON button If you want to restore the setting to the original state reset the A 9755 A 9555 For information about how to reset see How to reset on page 19 Note To shut down the A 9755 A 9555 completely set the POWER switch to the OFF position
27. ou need a commercially available MC phono preamp page 11 e If the Volume indicator flashes quickly any speakers may not be connected to the A 9755 A 9555 Make sure that the required connection is performed appropriately and set the POWER switch to the ON position again pages 10 14 e Verify if the SPEAKERS selector is configured correctly If OFF is selected no sound will be output from any of the speakers page 14 Noise can be heard e Using cable ties to bundle audio cables with power cords speaker cables and so on may degrade the audio perfor mance so don t bundle them together e An audio cable may be picking up interference Try repositioning your cables The tone controls have no effect e If the PURE DIRECT indicator lights up the PURE DIRECT function is on and the tone controls have no effect Press the PURE DIRECT button to turn the function off The PURE DIRECT indicator will go off page 16 Remote Controller The remote controller doesn t work e Make sure that the batteries are installed with the correct polarity page 5 e Install new batteries Don t mix different types of batteries or old and new batteries page 5 e Make sure that the remote controller is not too far away from the A 9755 A 9555 and that there s no obstruction between the remote controller and the A 9755 A 9555 s remote control sensor page 9 e Make sure that the A 9755 A 9555 is not subjected to direct sunshine or
28. r of the same type is used in the same room or the A 9755 A 9555 is installed close to equipment that uses infrared rays the remote controller may not work reliably e Don t put anything such as a book on the remote con troller because the buttons may be pressed inadvert ently thereby draining the batteries e The remote controller may not work reliably if the A 9755 A 9555 is installed in a rack behind colored glass doors Keep this in mind when installing e The remote controller will not work if there s an obstacle between it and the A 9755 A 9555 s remote control sensor 10 Connecting the A 9755 A 9555 Connecting Your Speakers Speaker Connection Precautions You can connect one or two sets of speakers A B to the A 9755 A 9555 and select which set outputs sound or use both sets at the same time For both speakers A and B make sure to connect them with Left and Right in pairs If you connect either Left or Right channel alone no sound output will be avail able If the electrical contact is poor for the connection the Volume indicator will flash quickly when the power is supplied e Connecting one set of speakers A or B Only con nect speakers with an impedance of 4 ohms or more but less than 16 ohms If you use speakers with a lower impedance and use the A 9755 A 9555 at high volume levels for a long period of time the built in protection circuit may be activated e Connecting two sets of speakers
29. t Safety Instructions NADU FWN 10 11 12 13 14 Use only with the cart stand Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radia tors heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are pro vided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience recepta cles and the point where they exit from the appara tus Only use attachments accessories specified by the manufacturer PORTABLE CART WARNING tripod bracket or table spec ified by the manufacturer or sold with the apparatus When a cart is used use cau tion when moving the cart apparatus combination A to avoid injury from tip over s3125A Unplug this apparatus during lightning storms or when unused for long p
30. t the MAIN IN function The indicator lights up while the MAIN IN function is on Input selector 15 This control is used to select from the following input sources LINE HDD PHONO CD TUNER TAPE or MD Input selector indicator 15 These indicators show the currently selected input source 4 Remote control sensor 9 This sensor receives control signals from the remote controller Front amp Rear Panels Continued Rear Panel A 9755 only Grounding terminal This terminal is for connecting a turntable s ground wire 2 PHONO MM input This analog audio input is for connecting a turntable with a moving magnet cartridge 3 SPEAKERS A These terminal posts are for connecting speaker set A 4 SPEAKERS B These terminal posts are for connecting speaker set B AC INLET This connector is for connecting the supplied power cord see page 5 CD input This analog audio input is for connecting a CD player s analog audio output TUNER input This analog audio input is for connecting a tuner s analog audio output TAPE IN OUT This analog audio input and output are for connect ing a cassette deck with an analog audio input and output MD IN OUT This analog audio input and output are for connect ing an MD recorder with an analog audio input and output HDD IN This analog audio input is for connecting a compo nent s analog audio output RI Dock etc
31. the phono preamp s input and connect the phono preamp s output to the A 9755 A 9555 s PHONO L R jacks RCA Audio Connection Color Coding e Red connectors are used for the right channel and white connectors are used for the left channel Left white L _ My o o y a Right red R Push each plug in all the way to make a good con nection loose connections can cause noise or malfunctions Connecting a CD Player Use an analog audio cable to connect the A 9755 A 9555 s CD L R jacks to the analog audio out put jacks on the CD player as shown 11 12 Connecting the A 9755 A 9555 Continued Connecting a Tuner Use an analog audio cable to connect the A 9755 A 9555 s TUNER L R jacks to the analog audio output jacks on the tuner as shown O e J896 Connecting a Cassette Deck Use an analog audio cable to connect the A 9755 A 9555 s TAPE IN L R jacks to the cassette deck s analog audio output jacks and use another ana log audio cable to connect the A 9755 A 9555 s TAPE OUT L R jacks to the cassette deck s analog audio input jacks as shown Connecting an MD Recorder Use an analog audio cable to connect the A 9755 A 9555 s MD IN L R jacks to the MD recorder s a
32. ting input and muting The STANDBY and ON buttons on the remote control ler will work even when the MAIN IN function is on Recording Unless you have the full consent of the copyright holder copyright laws prohibit using your recordings for anything other than personal enjoyment Input selector 1 Use the input selector to select the component that you want to record from 2 Prepare the recorder e Set the recorder so that it s ready for recording e If necessary adjust the recording level on the recorder e See the recorder s manual for more information 3 Start playback on the component selected in step 1 Note If you select another input source dur ing recording the newly selected input source will be recorded Notes e You can record on a recorder that s connected to the MD OUT or TAPE OUT L R jacks The tone controls have no effect on the signal being recorded e When using the A 9755 as a power amplifier MAIN IN function recording is not possible 17 18 Troubleshooting If you have any trouble using the A 9755 A 9555 look for a solution here If you can t resolve the issue yourself contact your Onkyo dealer Power Can t turn on the A 9755 A 9555 e Make sure that the power cord is properly plugged into the wall outlet page 5 e Unplug the power cord from the wall outlet wait ten seconds or more then plug it in again e By default press
33. umbers control other Onkyo products connected to the A 9755 A 9555 via RI connection Note also that some of the RI connected products may not be controlled with these buttons For detailed infor mation refer to the relevant manuals provided for the individual products STANDBY button 14 This button is used to set the A 9755 A 9555 to Standby ON button 14 This button is used to turn on the A 9755 A 9555 Number buttons These buttons are used to enter track numbers on a CD or MD component To enter a single digit num ber simply press the corresponding button The 10 0 button is used to enter either 10 or 0 The gt 10 button is used when entering 2 digit numbers above 10 See the instruction manual supplied with each com ponent for more information TUNER buttons BAND button Selects the band ex AM or FM for the tuner FM MODE button Selects the FM listening mode stereo or mono for the tuner PRESET button Selects radio presets TUNING A J W button Determine the listening frequency for the tuner DIMMER button The button is used to adjust the display brightness on a CD component VOLUME A J buttons 15 These buttons adjust the volume of the A 9755 A 9555 Pause II Play gt Stop M buttons Pause II button Pauses playback on a CD MD or HDD component starts reverse playback on a cassette deck Play gt Starts playback on a CD MD HDD or cassette compon
34. unsuccessful recordings caused by the unit s malfunction Before you record important data make sure that the material will be recorded correctly How to reset To reset the A 9755 A 9555 to its factory defaults while holding down the PURE DIRECT bution press the LOUDNESS button and then release both buttons The input selector indicators light up for one second and then the A 9755 A 9555 enters On mode A 9755 A 9555 BLOCK DIAGRAM O HEADPHONE SELECTOR ee eee DIGITAL H on l VOLUME AMPLIFIER i i oo EE oe y fe Lch LOWPASS i OFF I FITER CO O 7 BASS l i TREBLE i POWER l 1 SPEAKER AMP l SPEAKERB A SPEAKER SPEAKER PURE DIRECT 4 i RELAY san RELAY ai A B I i LOWPASS i R ch FILTER i i Ol IO N i i l vo TO ssnnnnn gt l DIGITAL 4 l OFF AMPLIFIER i oo i i BASS TREBLE 19 Specifications Power output Dynamic power THD total harmonic distortion Damping factor Input sensitivity and impedance Output level and impedance Phono overload Frequency response Tone control SN ratio Speaker impedance Power supply Power consumption Stand by power consumption Dimensions W x H x D Weight Analog inputs Analog outputs Speaker outputs Phones A 9755 A 9555 150 W 150 W 8 Q 1
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