Technics SU-A900 User's Manual
Contents
1. 210 G O Note When you want to select further channels you do not have to press the TUNER button again To select the desired band TUNER pisc sano The band changes O O each time the button is pressed Note When you want to change the band you do not have to press the TUNER button again To operate the compact disc player To start play L O To start play from the desired track O Select the desired track number Example track 12 seNe is W OO For CD changer Select the desired disc by pressing DISC BAND and then appropriate numeric button 1 5 r Note When you want to select further tracks you do not have to press the CD button again To stop play temporarily i an Press O to resume play S ees BSS OOOO To operate the tape deck Akik Only when using a double cassette deck C Select the tape deck DECK 1 or DECK 2 C raD Reverse Forward The remote control indicator of the cassette deck is changed over each time the button is pressed To stop play To stop play tem porarily Press S CO to resume play Press one of these buttons to select the desired tune while the unit Is in the play mode CO CO Cnty applicable to a Technics tape deck with the music select functions To fast forward or rewin2. A low pitched noise hum or buzz is heard One of the speakers is connected out of phase Kh The left and right speaker connections source connections or graphic equalizer connections are reversed The power cord or a fluorescent light etc is near the connection wires Te Reconnect the speakers maintaining proper polarity Ile gt gt Check all connections and correct them if necessary Try separating this unit as far as possible from the electric appliance Sound Is not heard from one of the speakers The speaker wires are disconnected e Check and correct the connections of the speaker wires The balance control Is set too far to one side e Set so that sounds are heard at the center the speakers between Sound stops during a performance or no sound is heard when the power Is switched ON The remote control transmitter does not function While using the remote control transmitter The protection circuitry has functioned because the positive and negative speaker connection wires are shorted speakers with an impedance less than the indicated rated Impedance of the amplifier are used or DC voltage appears in the output causing the protection circultry to function Batteries are incorrectly placed Switch OFF the power and after determining and correcting the cause switch ON the power once again Use the speakers of t
3. The batteries should be replaced if the unit cannot be operated even when the remote control transmitter is brought close to the unit H Battery notes Be sure that batteries are inserted so that they are placed correctly with respect to the and indications in the battery compartment If the batteries are not in serted correctly they may leak and damage the remote control transmitter Do not use rechargeable nickel cadmium type batteries 2 Do not use a remote control transmitter for a TV set a VCR or other video compo nent at the same time as this remote con trol transmitter is being used because to do so might result in Incorrect operation 3 If this unit is installed in a rack with glass Do not mix old and new batteries or bat teries of different types such as carbon and alkaline If the remote control transmitter is not to be used for a long period of time take out the batteries and store them in a cool dark place j Remove and dispose of worn out batteries Never attempt to recharge or short circuit the batteries and do not disassemble them or expose them to excessive heat or throw them into a fire elf a battery leaks remove both batteries and dispose of them and then thoroughly clean the battery compartment before in serting new batteries Be sure the transmitter part of the remote contro transmitter and the receptor part of this unit are tree from dust Exc
4. output levels only CONNECTIONS n s One pair of speakers can be connected to the A terminals of this unit and one pair to the B terminals or only one pair of bi wired speakers can be connected to ail terminals To connect main and or second speakers Main A speakers not Included right Second B speakers not Included Hi Load Impedance When only the A or only the B terminals are used 4 16 ohms When both the A and the B terminals are used simultaneously 8 16 ohms To connect bi wired speakers not included Note Connect only bi wired speakers in this way Load impedance When bi wired speakers are used 4 16 ohms E Bi wiring The treble range and the bass range of the speakers are con nected to the speaker terminals of the amplifier by using two speaker connection cords separately for each As a result of making connections in this way sound can be reproduced with much greater nuance and detail with the feel ings of alr oscillation and deepness of sound provided by an input source that suppresses reciprocal band range Interference Refer to the operating instructions of the speakers To connect cords to terminals Strip off the outer covering and twist the et m center conductor 10 mm Twist Turn completely tothe left sy Ps insert the wire and turn completely to the right Pull the cord to assur
5. the speakers connected to the A terminals and the B terminals Or if bi wired speakers are connected sound can be heard from them off No sound will be heard from the speakers Both indicators will turn off Press the tape monitor button so that the SOURCE indicator illuminates Notes When a graphic equalizer connected to the TAPE 1 or TAPE 2 terminals is used set the selector to the TAPE 1 or TAPE 2 position Tape monitor indicators Input selector indicators Press one of the input selectors to select uJ the sound source o Each time the button is pressed the illuminated posl lt tion of the input selector indicator will shift one posi tion to the left Each time the button is pressed the illuminated posi tion of the Input selector indicator will shift one posi tion to the right To directly select the Input source The desired input source can be selected directly by using the input selector buttons located Inside the panel TAPE 1 Set to this position to listen to equipment con nected to the TAPE 1 terminals TAPE 2 Set to this position to listen to equipment con nected to the TAPE 2 terminals AUX Set to this position to listen to equipment connected to the AUX terminals CD Set to this position to listen to compact discs TUNER Set to this position to listen to radio broadcasts PHONO Set to this position to listen to phono discs T
6. A standard curve 0 8 dB 30 Hz 15 kHz TUNER CD AUX TAPE 1 TAPE 2 3 Hz 80 kHz 0 3 dB 0 dB 0 3 dB 20 Hz 20 kHz Tone controls BASS 50 Hz 10 to 10 dB TREBLE 20 kHz 10 to 10 dB Output voltage TAPE 1 TAPE 2 REC OUT 150 mV Channel balance AUX 250 Hz 6 3 kHz 1dB Channel separation AUX 1 kHz 50 dB E GENERAL Power consumption SU A900 315 W SU A800 230 w Power supply For Europe AC 50 H2 60 Hz 230 V For United Kingdom Australla and N Z AC 50 Hz 60 Hz 230 V 240 V For others AC 50 Hz 60 Hz 110 V 127 V 220 V 240 V Dimensions W x H x D 430 x 136 x 365 mm Weight SU A900 9 4 kg SU A800 8 6 kg Notes 1 Specifications are subject to change without notice Weight and dimensions are approximate 2 Total harmonic distortion is measured by the digital spectrum analyzer 3 For areas except Europe The specification values given have been measured while us ing a 240 V power supply For United Kingdom only This apparatus was produced to BS 800 Never use alcohol paint thinner benzine or a chemically treated cloth to clean this unit Such chemicals may damage the unit s finish 15 Troubleshooting Guide Before requesting service for this unit check the chart below for a possible cause of the problem you are experiencing Some simple checks or a minor adjustment on your part may eliminate the problem and restore proper operation if you are in doubt about s
7. NDBY ON Press to switch the unit from on to standby mode or vice ver sa In standby mode the unit is still consuming a small amount of power 2 Operation indicators AMPLIFIER OPERATION MONITOR These indicators illuminate to indicate the operating condi tion of this unit VOLTAGE CONTROL When the power is switched ON this indicator illuminates when the unit is in the operating condition CURRENT DRIVE When the power is switched ON this indicator illuminates after about 4 seconds when the unit is in the operating condi tion If an abnormat condition in the circuitry is detected such as DC voltage appearing in the output or a short circuit of the positive and negative wires from the speaker ter minals the protection circuit functions and this indicator will not illuminate 3 Tone control button TONE This switch is used to set the tone control circuit bass tre ble to ON or DEFEAT 4 Volume control VOLUME 5 Tape monitor button indicators TAPE MONITOR This button is used to monitor the recorded sound during recording TAPE 1 Set to this position to monitor the sound from the equipment connected to the TAPE 1 terminals TAPE 2 Set to this position to monitor the sound from the equipment connected to the TAPE 2 terminals SOURCE Set to this position to tisten to a phono disc radio broadcast compact disc etc See pages 8 and 10 To open the panel cover
8. Technics Stereo Integrated Amplifier SU A900 SU A800 Operating Instructions Dear Customer Thank you for purchasing this product For optimum performance and safety please read these instructions carefully These operating instructions are applicable to models SU A900 and SU A800 Contents Accessories cece cee eens 2 e Remote Control Transmitter 1i Caution for AC mains lead e Remote Control Operation 12 For United Kingdom 000000 3 Suggestions for Safety 14 e Connections cece ee 4 Technical Specifications 15 e Front Panel Controls and Functions 7 e Maintenance 000 eee 15 e Listening to Sound 8 Troubleshooting Guide Back cover Recording cece cece eee 10 For areas except United Kingdom Europe Australia and N Z CAUTION The AC voltage differs according to the area Be sure to set the proper voltage in your area before use For details please refer to page 5 e AC power supply cord For United Kingdom For Australia and N Z Batteries Power plug adaptor Not supplied for United Kingdom Europe Australia and N Z Caution for AC mains lead For United Kingdom EB area code model only For your safety please read the following text care fully This appliance is supplie
9. cidentally touched i Take particular care if children are present Never permit children to put anything especially metal inside this unit A serious electric shock or malfunction could occur if articles such as coins needles screwdrivers etc are inserted through the ventilation holes etc of this unit E l water is spilled on the unit Be extremely careful if water is spilled on the unit because a fire or serious electric shock might occur Immediately disconnect the power cord plug and consult with your dealer E Avoid spray type insecticides Insecticides might cause cracks or cloudiness in the cabinet and plastic parts of this unit The gas used in such sprays might moreover be ignited suddenly E Never use alcohol or paint thinner These and similar chemicals should never be used because they might cause flaking or cloudiness of the cabinet finish E Disconnect the power supply cord if the unit will not be used for a long time 1f the unit is left for a long time with the power ON this will not only shorten its useful operation life but may also cause other troubles E if trouble occurs f during operation the sound is interrupted or indicators no longer illuminate or if abnormal odor or smoke is detected im mediately disconnect the power cord plug and contact your dealer or an Authorized Service Center Technical Specifications wn ss s00 20 Hz 20 kHz continuous power output both channels drive
10. d the tape Suggestions for Safety Use a standard AC wall outlet 1 Use of an AC power source of high voltage such as for an alr conditioner Is very dangerous There is the possibility that a fire might be caused by making such a connection 2 A DC power source cannot be used Be sure to check the power source carefully especially on a ship or other place where DC is used W Grasp the plug when disconnecting the power supply cord 1 Wet hands are dangerous A dangerous electric shock may result if the plug is touched by wet hands 2 Never place heavy items on top of the power supply cord and never force it to bend sharply Place the unit where it will be well ventilated Place this unit at least 10 cm 4 away from wal surfaces etc Be careful that curtains and similar materials do not obstruct the ventilation holes W Avoid places such as the following In direct sunlight or in other places where the temperature Is high in places where there ia excessive vibration or humidity Such conditions might damage the cabinet and or other compo nent parts and thereby shorten the unit s service life W Be sure to place the unit on a flat level sur tace If the surface ts inclined a malfunction may result E Never attempt to repair or reconstruct this unit A serlous electric shock might occur if this unit is repaired disassembled or reconstructed by unauthorized persons or if the Internat parts are ac
11. d with a moulded three pin mains plug for your safety and convenience A5 ampere fuse is fitted in this plug Should the fuse need to be replaced please ensure that the replacement fuse has a rating of 5 ampere and that it is approved by ASTA or BSI to BS 1362 Check for the ASTA mark or the BSI mark Y on the body of the fuse If the plug contains a removable fuse cover you must ensure that it is refitted when the fuse is replaced if you lose the fuse cover the plug must not be used until a replacement cover is obtained A replacement fuse cover can be purchased from your local dealer CAUTION IF THE FITTED MOULDED PLUG S UN SUITABLE FOR THE SOCKET OUTLET IN YOUR HOME THEN THE FUSE SHOULD BE REMOVED AND THE PLUG CUT OFF AND DISPOSED OF SAFELY THERE IS A DANGER OF SEVERE ELEC TRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO ANY 13 AMPERE SOCKET If a new plug is to be fitted please observe the wiring code as shown below If in any doubt please consult a qualified electrician IMPORTANT The wires in this mains lead are coloured in accor dance with the following code Blue Neutral Brown Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug pro ceed as follows The wire which is coloured BLUE must be connected to the terminal in the plug which is marked with the letter N or coloured BLACK The wire which i
12. e a proper connection Note Be sure to only connect positive cards to positive terminals and negative cords to negative terminals Note To prevent damage to circuitry never short circuit the positive and negative When using banana plugs speaker wires e 8 Use with the speaker terminal OOS knob tightened completely e Pf fy en plug not included To connect the AC power supply cord Included FOR UNITED KINGDOM ONLY BE SURE TO READ THE CAUTION FOR THE AC POWER SUPPLY CORD ON PAGE 3 BEFORE CONNECTING THE AC POWER SUPPLY CORD For United Kingdom only Connect the AC power supply cord included after all other cables and cords are connected AC power supply cord a inctuded COOGOs For areas except Australia and N Z Insertion of Connector Even when the connector Is perfectly Inserted depending on the type of in let used the front part of the connec tor may jut out as shown in the draw Household AC outlet Connector ing R However there is no problem using the Approx 6mm unit Appliance inlet Note The configuration of the AC power supply cord differs according to area Not supplied for United Kingdom Europe Australia and N Z If the power piug will not fit your socket use the power plug adaptor included E Front Panel Controls and Functions 1 Power STANDBY ION switch POWER m STA
13. essive dust might prevent reception Avoid dust Avoid dust doors the glass door s thickness or color might make it necessary to use the remote control transmitter a shorter distance from the unit h dl Remote Control Operation This remote contro transmitter can be used to operate Technics CD players and tape decks which are equipped with remote control terminals or remote contro sensors or to operate Technics tuners which are equipped with remote con trol sensors Consult your dealer for details For detailed information concerning operation steps etc please refer to the appropriate page for each unit and the NOTE Face this remote control transmitter toward the main unit to operate the main unit or other units which are connected to the main unit by means of a remote control cable See paga 5 To operate any other unit face this remote control transmitter toward that unit respective operating instructions e Make sure that the power of each unit is set to the ON posl tion before beginning the operations To operate the amplifier To select an input source OO 6 APE TAPE2 To adjust the volume level To operate the tuner To select the desired channel sequentialy vw AN preset CD _ Select the desired preset channel To select the desired channel directly Specify the preset channel using the numeric button s is oO O Example Channel
14. he proper impedance rating Insert the batteries so that the positive and negative polarities are correct The remote control transmitter batteries are dead Replace them with new batteries There is an obstruction between the remote control transmitter and this unit Remove the obstruction The remote control transmitter is not correctly facing this unit e Face the remote control transmitter correctly toward this unit PD Matsushita Electric Industrial Co Ltd Central P O Box 288 Osaka 530 91 Japan RQT1980 B Printed in Japan HO593M1053
15. he speaker selectors to the off position Avoid listening for prolonged periods of time to prevent hearing damage After listening Is finished Use the volume control to reduce the volume level and switch OFF the power of each unit Recording To record from compact discs etc Set the tape monitor button to the SOURCE position Select the program source to be recorded AUX Set to this position to record from equipment con nected to the AUX terminals CD Set to this position to record from compact discs TUNER Set to this position to record from radio broad casts PHONO Set to this position to record from phono discs Prepare the tape deck for recording Refer to the operating instructions for the tape deck for detailed adjustment of the recording level etc A ster recording and play back the source Tape to tape recording Tape to tape recordings can be made if two regular tape decks or one regular tape deck and a digital compact cassette deck DCC are connected to the rear panel of this unit Note Tape deck 1 first tape deck is the tape deck connected to the TAPE 1 terminals Tape deck 2 second tape deck Is the tape deck connected to the TAPE 2 terminals To record from tape deck 2 to 1 Set the tape monitor button to the SOURCE position 2 Press the TAPE 2 button Start tape deck 1 for recording and tape deck 2 for playback T
16. hen set the phono cartridge selector to the posi tion which corresponds to the type of cartridge us ed on the turntable Refer to PHONO SELEC TOR on page 9 Begin operation of the components to be used Refer to the operating instructions of each component Adjust the volume level Turn the volume control to the desired level To open the a panel cover I pee t t l I l Lo SS A 4 t snes nase STRELE BALANCE eo 0 D Q i Pro Pete et aC To adjust the left right sound balance BALANCE Adjust the balance control To adjust the tone qualit TONE Press the tone control switch inward to the ON position If you want to adjust the bass or treble tone quality If set to the DEFEAT position tone controls have no effect and frequency response becomes flat BASS Adjust the low frequency sound to the desired tone quality TREBLE Adjust the high frequency sound to the desired tone quality When listening phono discs PHONO SELECTOR Select the cartridge type MM Set to this position when using a moving magnet type cartridge or high output moving coil cartridge 1 mV or more MC Set to this position when using a moving coil type cartridge PHONO SELECTOR While listening through headphones Speaker selectors Headphones not included Reduce the volume tevel before connecting headphones e If the sound from the speakers is not wanted set t
17. l l om oren t I L L eS ee er G Remote control signal receptor SENSOR Receives the signals from the remote control 7 Headphones Jack PHONES See page 9 Speaker select buttons indicators SPEAKERS These select buttons are used to select the speakers to be used See page 8 Tone controls BASS TREBLE The bass control Is used to adjust the low frequency sound tange and the treble contro is used to adjust the high frequency sound range Balance control BALANCE This control is used to adjust the left right volume balance 11 Input selectors indicators INPUT SELECTOR These selectors are used to select the sound source to be heard such as a disc radio broadcast etc The input source can be selected either by sequentially changing the selection or by direct selection See page 8 12 Phono cartridge selector PHONO SELECTOR This selector should be set to the position which cor responds to the type of cartridge used on the turntable 2 3 1745 Speaker indicators Set the volume control to the MIN posi tion 2 Switch ON the power Select the speaker system to be used The corresponding Indicator s above will Illuminate to Indicate which speaker system Is selected A Sound can be heard from the speakers connected to the A terminals B Sound can be heard from the speakers connected to the B terminals A and B Sound can be heard simultaneously from
18. l compact cassette deck DCC atc Tape deck 1 not included REMOTE CONTROL OUT terminal This terminal can be used only with Technics tape deck and com pact disc player which have the appropriate remote control ter minal Consult your dealer for details Proper connection with remote control connection cables will allow control of some functions from this unit s remote control transmitter See pages 12 13 for details Connect to a tape deck and or compact disc player as shown below If a tape deck is not being used the compact disc player can be connected directly dotted line This unit REMOTE CONTROL OUT Connection cable for remote control included with tape deck Tape deck not included REMOTE Q CONTROL 2 Connection cable for remote control Included with compact disc r Compact disc player A not included REMOTE For a compact disc player with a remote control sensor the above connection is not necessary To set the power voltage For areas except United Kingdom Europe Australla and N Z CoE CODCOD Set the voltage selector to 110 V 127 V or 220 V 240 V according to the area in which the unit will be used Use a minus screwdriver Note Note that this unit will be seriously damaged if this setting is not made correctly There is no cooling fan for some countries The coofing fan operates at high power
19. n SU A900 2x 90 W 8 Q SU A800 2x55 W 8 O 1 kHz continuous power output both channels driven THD 1 SU A900 2 x 100 W 8 Q 2 140 W 4 0 SU A800 2x70 W 8 O 2x 100 W 4 9 63 Hz 12 5 kHz continuous power output both channels driven THD 0 7 SU A900 2 x 90 W 8 Q 2x125 W 4 O SU A800 2x65 W 8 9 2x85 W 4 Q Total harmonic distortion rated power at 20 Hz 20 kHz 0 01 8 Q Intermodulation distortion 50 Hz 7 kHz 4 1 SMPTE rated power 0 007 8 Q Residuat hum and noise 1 mV Damping factor 60 8 Q 30 4 Q Headphones output level impedance 540 mV 330 NQ Load impedance Aor B BI WIRING 4Q 16Qa A and B 8Q 160 Input sensitivity impedance PHONO MM 2 5 mV 47 KQ PHONO MC 170 1V 220 Q TUNER CD AUX TAPE 1 TAPE 2 150 MV 22 kQ Phono maximum Input voltage 1 kHz RMS MM 160 mV IHF 66 MC i 12 mV IHF 66 SIN rated power 4 Q PHONO MM 78 dB 85 dB IHF 66 PHONO MC 64 dB S 250 uV 66 dB IHF 66 TUNER CD AUX TAPE 1 TAPE 2 91 dB 100 dB IHF 66 SIN at 26 dB power 4 Q PHONO MM 68 dB PHONO MC 63 dB TUNER CD AUX TAPE 1 TAPE 2 70 dB Maintenance To clean this unit use a soft dry cloth For very dirty surfaces dip a soft cloth in a weak soap and water solution and wring well After cleaning wipe with a soft dry cloth SIN at 50 mW power 4 O PHONO MM 64 dB PHONO MC 60 dB TUNER CD AUX TAPE 1 TAPE 2 64 dB Frequency response PHONO MM RIA
20. o record from tape deck 1 to 2 Set the tape monitor button to the SOURCE position D Press the TAPE 1 button Start tape deck 2 for recording and tape deck 1 for playback E To directly select the source for recording The desired source can be selected directly by using the input selector buttons located inside the panel E To check the sound recorded With a tape deck with 3 heads It is possible to check the sound recorded on the tape Set the tape monitor to TAPE 1 or TAPE 2 and the monitor switch on the tape deck to TAPE TAPE 1 when recording on tape deck 1 first tape deck TAPE 2 when recording on tape deck 2 second tape deck Remote Control Transmitter 1 Open the cover 2 Insert the batteries Be sure to insert according to the and indications in the battery compartment e Use two UM 4 AAA ROS 1 5 V size batteries Face about 7 meters In front of the sensor This actual range will depend on the angte at which the remote control is operation Face It toward the remote control signal receptor of this unit Obstacles should be avoided 1 Do not expose the receptor on this unit to direct sunlight or other strong light because to do so might result in Incorrect H Battery life Battery life is about one year Battery life may vary depending upon the frequency of use and other conditions of use
21. ome of the check points or if the remedies indicated in the chart do not solve the problem refer to the directory of Authorized Service Centers enclosed with this unit to tocate a convenient service center or consult your Technics dealer for instructions Probable cause s Suggested remedy During phono disc The sound lacke clarity and volume play The phono cartridge selector is incorrectly set to the MM position when a moving coil type cartridge Is being used e Set it to the MC position The high frequency range cannot be clearly heard Problems noted at No sound is heard when the power Is switched ON The phono cartridge selector is incorrectly set to the MC position when a moving magnet type cartridge is being used all times The power cord plug is not completely inserted e Set it to the MM position e Confirm that the power cord plug is connected completely or incorrect Connections to the speakers etc are incomplete e Check to be sure that all connection wires are correctly connected The input selector setting is incorrect e Check to be sure that the selection of the desired sound source is made correctly i The speaker selector is set incorrectly e Set it to the correct position When listening to stereo sound the sound lacks depth i e thin bass tinny sound When listening to stereo sound the left and right sounds are reversed
22. s coloured BROWN must be con nected to the terminal in the plug which is marked with the letter L or coloured RED Under no circumstances should either of these wires be connected to the earth terminal of the three pin plug marked with the letter E or the Earth Symbol L Before use Remove the connector cover as follows How to replace the fuse 1 Remove the fuse cover with a screwdriver Connections To connect to each terminal Make connections to each component in the system by using stereo connection cables not included Stereo connection cable White L Red R GOO O PHONO terminals Connect to a turntable GND DO Turntable not included U M GND terminal This terminal is for use with a turntable which has a ground wire TUNER terminals Connect to a tuner Tuner not included SPEAKERS Cooling fan See page 5 Cep terminals Connect to a compact disc player Compact disc player not included e OUT D Q GS AU AUX terminals Connect to a component such as a video disc player audio only connectable etc Video disc player not included AUDIO OUT 9 LJ TAPE 2 terminals Connect to a second tape deck Tape deck 2 or a graphic equalizer etc Tape deck 2 not included REC IN PLAY OUT Q C TAPE 1 terminals Connect to a first tape deck Tape deck 1 or a digita
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