Sony ST-JX410 User's Manual
Contents
1. Depress the POWER switch m ON 1 Depress the POWER switch ON Select the FM band with the FM AM band selector 2 select the FM band with the FM AM band selector Press the STEREO MUTING button so that the 3 Press the STEREO MUTING button so that the MUTING indicator appears MUTING indicator appears Press the TUNING MODE button so that the AUTO 4 Press the TUNING MODE button so that the SWEEP indicator appears indicator appears Press the TUNING button 5 Press the TUNING button Automatic frequency scanning will stop when a When a signal is received scanning will stop and signal is received If the signal received is not the the SWEEP indicator flashes so the received sta desired one press the TUNING button again tion can be heard for a few seconds after which Adjust the volume and tone of the amplifier scanning resumes To stop sweep tuning press the MEMORY button 6 Adjust the volume and tone of the amplifier During automatic tuning or sweep tuning if the signal strength is weak the band frequency display figures will not stop at the desired frequency When this hap pens adjust the antenna for optimum reception If the signal strength is still too weak for automatic tuning tune in the station as described in MANUAL TUNING MEMORY PRESET TUNING Once the frequencies of the stations you want to tune in are memorized all you have to do is push a button For each station preset button you can memorize an FM or a2. FM STEREO FM AM TUNER ST JX41 OPERATING INSTRUCTIONS Before operating the unit please read this manual thoroughly This manual should be retained for future reference 1984 by Sony Corporation OWNER S RECORD The model and serial numbers are located at the rear Record the serial number in the space provided below Refer to these numbers whenever you call upon your Sony dealer regarding this product Mode No ST JX410 Serial No WARNING To prevent fire or shock hazard do not ex pose the unit to rain or moisture CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute e a risk of electric shock to person This symbol is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance TABLE OF CONTENTS Features Precautions Function of controls a 7 System E aa O azi GONNEGHON NOLES ienie aaa naadik isai FM ant nna connection eiccennais AM antenna CONNECTION 0 cccccccceecssecesecconcessenes Ground connection on nconevercseceeeenecensnenecscsrcnccustnnsee M
3. ORY SCAN button the memorized stations are automatically received in order for a few seconds each Pushing a particular station preset button stops the scanning The scanning se quence will be shown by the flickering of the lamp in the station identification window above the station preset button STATION LABEL INSERTION Station labels are supplied for identification of the preset stations Affix the labels as shown below 1 Pull out the station identification plate from its slot on the right side 2 Remove the label by pushing it out from the rear Lightly pull upwards to remove the right side 3 Pick out the appropriate labels for the memorized stations and put them in the plate as shown in the correct order Check that the station labels match the memorized sta tions by tuning in to each station TROUBLE CHECKS The following checks will assist in the correction of most problems which you may encounter with your unit Should any problem persist after you have made these checks consult your nearest Sony service facility Before going through the check list below first refer back to the connection and operating procedures No audio output Check the connections to the amplifier eCheck the setting of the amplifier s input selector volume control and power switch See if the station is tuned in correctly eCheck the antenna connection SIGNAL indicator reading is unstable Tune in the station acc
4. al RM S410 system remote controller power on off preset station selection and timer opera tion can be controlled PRECAUTIONS On safety Operate the unit only on 120 V ac 60 Hz e Should any liquid or solid object fall into the cabinet unplug the unit and have it checked by qualified person nel before operating it any further eUnplug the unit from the wall outlet if it is not to be used for an extended period of time To disconnect the cord pull it out by grasping the plug Never pull it out by the cord On installation Do not install the unit in a location near heat sources such as radiators or air ducts or in a place subject to direct sunlight excessive dust mechanical vibration or shock eGood air circulation is essential to prevent internal heat build up in the unit Place the unit in a location with adequate air circulation On operation When the unit is not in use turn the power off to con serve energy and to extend the useful life of your unit On cleaning Clean the cabinet front and rear panels periodically with a soft dry cloth If the stains are difficult to remove use a cloth moistened with a mild detergent solution Do not use solvents such as alcohol benzine or thinner since they will damage the finish On repacking Do not throw away the carton and the packing material lt makes an ideal container to transport the unit in When shipping the unit for repair work or to another location repa
5. anual tun ea rir ret roar Automatic tuning Sweep tuning sie Memory preset tuning To memorize station FFEGUSMCHOS seccccssssocsssosnseerconen To receive a memorized station ceeseseeeeees Memory scanning Station label Se rtiO eaea cieccceetsccecccsveHeveccctedecsecs Bf cot Re 2dr 04 5 a Se ene OR Specioal o S siccincawrinactinaiane OOM ONWNAWHD AW ow b FEATURES The quartz locked digital frequency synthesizer system allows accurate and stable tuning that is not affected by temperature variations or long period usage Quick and accurate station selection is possible with an electronic digital readout on the band frequency dis play Four methods of tuning are available Manual tuning in which each band can be scanned either rapidly or step by step Automatic tuning in which the FM band is scanned automatically until a signal is r ceived Sweep tuning in which the entire FM band is scanned In this mode when a signal is received scanning stops for a few seconds to allow you to monitor the received station then the scanning resumes Memory preset tuning in which the frequency of up to 10 stations can be stored in the memory In this mode you can tune in your favorite station by pushing its station button The setting of the STEREO MUTING button can also be memorized for each station The MEMORY SCAN button allows you to scan the preset stations only Using the option
6. bove that shown on the display window will be scanned auto matically until a signal is received To resume scanning press the button again During sweep tuning Press to scan the entire band When a signal is received the scanning will stop for a few seconds while the SWEEP indicator flashes then resumes scanning automatically until the next signal is received This operation will be repeated until you press the MEMORY button During manual tuning Keep pressed to change the fre quency continuously until the desired frequency is re ceived The frequency figures will change rapidly Suc cessively press and immediately release the button to change the frequency slowly MEMORY button Press to operate memory circuit The MEMORY indica tor will appear in the display window for a few seconds indicating that the memory circuit is standing by O Station preset buttons and station identification windows To call up a memorized station press the appropriate button Station labels supplied can be placed in these window 4 O Ere Eea tR TE ERT IH ir ME T AGAPAN TN I A obni Remote control connector Connect the optional RM S410 system remote controller for remote operation MEMORY SCAN button Press to automatically scan the stations memorized on the station preset buttons STEREO MUTING button This button serves the dual purpose of a mode and FM muting switch To eliminate FM interstat
7. ck it as illustrated on the carton box Note about the AM channel plan selector This tuner has a two position AM channel plan selector underneath the left front corner To tune in AM stations correctly the selector should be correctly set according to the AM frequency allocation system of your country 10kHz for countries where the frequencies are allo cated at intervals of 10 kHz for example the USA and Canada 9kHz for countries where the frequencies are allo cated at intervals of 9 kHz This selector is factory preset at 10 kHz If the AM fre quencies are allocated at intervals different to that of your country the selector should be set to the ap propriate interval Be sure to turn off the power before changing the position of the selector For the customers in the USA For detailed safety precautions see the leaflet IMPOR TANT SAFEGUARDS FUNCTION OF CONTROLS Q 2 SS AFAR PEETS Maranan oaa oi algae cannar tf hal Ai sri i nl Ie ee pt Reo ey Dive ie mite ares ES ian Plies So re F I Aaina iea mais EGNE Hnt ait phain a Jiang i OUAITE LOGH CTL Gv ed rears so y F a _ POWER switch Depress to turn on the power To turn the power off press the switch again TUNING button Press the left side to go to a lower frequency and the right side to go to a higher During automatic tuning Press to start automatic fre quency scanning The frequencies below or a
8. eading the received frequency at a glance from the figures SYSTEM CONNECTIONS LAYOUT FREE AM ANTENNA 7 Ground ST JX410 OUTPUT i Power cord Connecting cord Amplifier to a wall outlet Speaker system CONNECTION NOTES e fhe power cord should be connected last of all first making sure that the POWER switch is turned off eKeep the speaker cords connecting cord and power cord away from the LAYOUT FREE AM antenna or antenna lead in of the tuner to avoid possible noise pickup Be sure to connect the red plug of the supplied connecting cord to the right R jack and the remaining one to the left L The cable connectors should be fully inserted into the jacks A loose connection may cause hum and noise FM ANTENNA CONNECTION To get the best from your tuner it is important to use an outdoor antenna Be sure to pick an outdoor antenna which suits your location 75 ohm coaxial cable connection 73 ohm coaxial cable is free from external interference reduces noise pickup and is the ideal transmission line for most FM antenna installations 1 i 3 5 mm G 15 mm s 300 ohm twinlead connection Standard 300 ohm twinlead is inexpensive but suscepti ble to the pickup of extraneous noise To route the twinlead over the roof or outerwall use stand off insulators Keep the lead as short as possible and avoid running parallel to other wires or metal pipes Ribbon antenna supplied U
9. ensitivity at 50 dB quieting 16 1 dBf 3 5 pV mono 37 9 dBf 43 pV stereo Usable sensitivity 10 3 dBf 1 8 pV IHF Signal to noise ratio at 75 kHz deviation 84 dB mono 78 dB stereo Harmonic distortion at 1 kHz 0 08 mono 0 15 stereo IM distortion 0 08 mono 0 15 stereo Separation at 1 kHz 50 dB Frequency response 30 Hz 15 kHz 92 dB Selectivity at 400 kHz 80 dB Capture ratio 1 0dB AM suppression ratio 65 dB Image response ratio 80 dB IF response ratio 90 dB Spurious response ratio 100 dB RF intermodulation 74 dB IHF Muting threshold Approx 30 dBf 18 V Output level impedance at 75 KHz deviation 750 mV 3 3 k ohms AM tuner section Tuning range 530 1610 kHz 10 kHz step 531 1602 kHz 9 kHz step Antenna LAYOUT FREE AM antenna external antenna terminal Intermediate frequency 450 kHz Usable sensitivity LAYOUT FREE AM antenna 300 pV m at 999 or 1 000 kHz external antenna 30 pV at 999 or 1 000 kHz Signal to noise ratio 54 dB 50 mV m Harmonic distortion 0 3 at 50 mV m 400 Hz Selectivity 38 dB 10 KHz 35 dB 9 KHz Sony Gorporation Printed in Japan General System PLL quartz locked digital synthesizer system FM stereo FM AM super heterodyne tuner Power requirements 120 V ac 60 Hz Power consumption 11 watts Dimensions Approx 430 x 80 x 275mm w h d 17 x 34 4 x 107 s inches including projecting parts and controls Weight 3 3 kg 7 Ibs 5 oz Accessorie
10. ion noise while tuning from station to station press this button so that the MUTING indicator appears The tuner operates in stereo mode for stereo sound sources and will be automatically switched to mono mode for monaural sound sources TUNING MODE button Select a tuning system MANUAL AUTO or SWEEP The selected tuning system will be indicated in the display window FM AM band selector Select the desired band The selected band will be in dicated in the band frequency display window LAYOUT FREE AM external ferrite bar antenna For AM reception always connect this antenna to the AM ANTENNA and a terminals on the rear panel Posi tion the LAYOUT FREE AM antenna for best reception Display window ORY MUTNG STEREO Tg 4 5 forts Cio wht j aT mo aaah wel FM TUNING MODE indicators The tuning system selected by the TUNING MODE button is displayed B MEMORY indicator When the MEMORY button is pressed the MEMORY in dicator will appear for a few seconds indicating that the memory circuit is standing by MUTING indicator This indicator appears when the STEREO MUTING button is pressed in FM reception STEREO indicator This indicator will appear when an FM stereo program of sufficient signal strength is tuned in with the SoTEREO MUTING button pressed Signal indicator Indicates the strength of the tuned signal by the amount of indicator illumination O Band frequency display Permits r
11. n AM station in any desired sequence A total of 10 stations can be memorized TO MEMORIZE STATION FREQUENCIES 1 Tune in the desired station following the procedure described in MANUAL TUNING AUTOMATIC TUNING or SWEEP TUNING 2 Press the MEMORY button and while the MEMORY indicator is illuminated press the desired station preset button The MEMORY indicator will go out Then the frequency is memorized Repeat these steps for each station preset button Press each preset button to check a memorized frequency Notes The MEMORY indicator will go off automatically after a few seconds When the indicator is out the memory circuit does not operate to memorize the station The previous memory will be erased when a new fre quency is committed to the memory of the same button An erasure cannot be made without a new input TO RECEIVE A MEMORIZED STATION Turn the POWER switch on and simply press the desired station preset button Memory of the last received station This tuner includes a memory circuit which is backed up by the lithium manganese batteries to remember the station which had been received for more than one second just before the power was turned off This station will be automatically tuned in when the power is turned on again 10 MEMORY SCANNING The MEMORY SCAN button allows you to quickly hear what kind of programs are being broadcast by the preset station When you press the MEM
12. nected there is no need to disconnect the LAYOUT FREE AM antenna AM antenna LAYOUT FREE GROUND CONNECTION When an outdoor antenna is installed a direct ground is recommended for lightning protection The use of a lightning arrester is recommended for any outdoor antenna MANUAL TUNING Follow the numbered sequence 1 Depress the POWER switch a ON 2 Select the desired band with the FM AM band selector 3 For FM reception press the STEREO MUTING button so that the MUTING indicator appears To tune in a very weak station see below 4 During FM reception press the TUNING MODE button so that the MANUAL indicator appears 5 Tune in the desired station with the TUNING button observing the STEREO indicator in FM reception the signal indicator and the band frequency display 6 Adjust the volume and tone of the amplifier When the frequency figures reach the end of the tuning range of each band the frequency will then be scanned from the opposite end of the tuning range To tune in a weak or noisy station When FM stereo signals are noisy or to tune in a very weak FM station lower the volume and disengage the STEREO MUTING button by pressing it again The MUTING indicator will go out This will result in better reception at the sacrifice of the stereo effect AUTOMATIC TUNING for FM only SWEEP TUNING for FM only Follow the numbered sequence Follow the numbered sequence
13. ntil you install a suitable outdoor antenna the ribbon antenna may be useful Connect it to the 300 ohm anten na terminals and fasten the ends to a wall etc using thumbtacks or adhesive tape Fully extend the antenna and position it for the best reception AM ANTENNA CONNECTION Supplied LAYOUT FREE AM external ferrite bar antenna Always keep the LAYOUT FREE AM antenna connected to the AM ANTENNA and r terminals Connect the lead in marked in white to the 7 terminal AM reception cannot be made without this antenna ar a Hy ws This antenna is designed to pick up signals from a par ticular direction Move the LAYOUT FREE AM antenna to obtain optimum reception lf a beating sound should be heard while recording AM programs move the LAYOUT FREE AM antenna to the position where it is not heard This antenna can be placed in various places such as on the speaker amplifier desk etc It can also be hung on the wall or on the rear panel of the tuner For convenience the antenna lead in of the LAYOUT FREE AM antenna can be wound around the hooks on the rear Outdoor antenna In most areas the LAYOUT FREE AM antenna will pro vide satisfactory reception In difficult reception areas it may be necessary to connect a length of insulated wire 6 15 meters 20 50 feet long to the AM ANTENNA terminal Extend this out of doors if possible keeping the greater portion horizontal When an outdoor antenna is con
14. s supplied Ribbon antenna 1 Connecting cord 1 LAYOUT FREE AM antenna 1 Station label 1 set Design and specifications subject to change without notice 3 773 932 21 1
15. urately Adjust the antenna STEREO indicator does not light when receiving stereo programs ePress the STEREO MUTING button so that the MUTING indicator appears Adjust the antenna STEREO indicator flickers Tune in the station accurately eWhen the signal is weak adjust the antenna or con nect an external FM antenna Tuning cannot be done correctly when the station preset button is pressed Memorize the frequency correctly The desired FM station cannot be tuned in with the automatic or sweep tuning system elhe signal strength is too weak for automatic or sweep tuning Adjust the antenna for optimum reception or disengage the STEREO MUTING button and tune in the station with manual tuning system Severe hum or noise e Ground the tuner Avoid long horizontal runs of antenna lead Keep connecting cords or antenna lead in away from transformers or motors and at least 3 meters 10 feet from TV sets and fluorescent lights Adjust the antenna Keep the speaker cords connecting cords and power cords from the LAYOUT FREE AM antenna or antenna lead in at the rear Ignition noise elnstall the outdoor antenna away from heavy traffic e Use a shielded or coaxial lead in for the antenna Electrostatic charge e Ground the tuner 1 SPECIFICATIONS FM tuner section Tuning range 87 5 MHz 108 MHz Antenna terminals 300 ohms balanced 75 ohms unbalanced Intermediate frequency 10 7 MHz S
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