Aiphone TX-1200 User's Manual
Contents
1. fa Quertz eu cota secu C i a na How to Preset Broadcasts 1 Turn on the power of both the TX 1200 and your amplifier 2 When tuning to FM broadcasts set the MONO ST switch as required 3 4 Tune to the desired AM or FM station by pressing the TUNING UP or DOWN button while monitoring Press the desired AM or FM function selector the frequency display and the SIGNAL indicators so that the frequency of the desired station is displayed and the maximum number of SIGNAL indicators light Press the MEMORY button The red LED above the MEMORY will light to indicate that you should enter the required preset number Choose either 1 10 or 11 20 using the 1 10 11 20 shift button While the MEMORY indicator is displayed press any of the AM FM RANDOM 20 STATION MEMORY buttons as desired The PRESET STATION displays the number corresponding to the button pressed and the MEMORY indicator will go off Now tune to the next station Press the AM FM RANDOM 20 STATION MEMORY selector button Set all the stations you wish to preset in the same way The AM FM RANDOM 20 STATION MEMORY selectors can be used to preset a total of 20 stations When presetting to only FM stations 20 stations can be preset a maximum of 10 AM stations can be preset Once preset these stations can be recalled at a later time You can overwrite a previously preset station with a new entry by following the above procedure When this is done the memory setting2. AIPHONE AM FM STEREO TUNER MODEL TX 1200 TX 1200 INSTRUCTIONS The TX 1200 is a quartz synthesized stereo monaural AM FM tuner offering stable drift free reception for your background music system in conjunction with the Aiphone or other playing systems One touch tuning allows instant recall of up to 20 preprogrammed stations Automatic muting eliminates extraneous noise while tuning VAIPHONE AMIGO STEREO TES TX 1200 FEATURES Digitally Synthesized Quartz Locked Tuning High Sensitivity amp Exceptionally Stable Reception 20 programmable stations random Automatic Next Station Search mode tuning Stereo Monaural output Convenient digital frequency display for manual tuning WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION TO PREVENT ELECTRIC SHOCK DO NOT REMOVE CABINET NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL SPECIFICATIONS FM SECTION Frequency Range Sensitivity 50 dB quieting sensitivity Mono Stereo Total Harmonic Distortion Signal to Noise Ratio Mono Stereo Frequency Response Alternate Channel Selectivity Capture Ratio Image Rejection Spurious Response Rejection at 98 MHz AM Supression 1 KHz 10 KHz Carrier Leak 19 KHz 38 KHz Antenna Terminals AM SECTION Frequency range Sensitivity Image Rejection at 1000 KHz IF
3. MHz 5 PRESET STATION Indicator These light to indicate preset station number selected from the AM FM RANDOM 20 STATION MEMROY 6 AUTO TUNING Indicator The indicator lights when the AUTO TUNING switch is pressed 7 MEMORY Indicator The indicator lights when the MEMORY switch is pressed Store the frequencies of broadcast stations in the memory when this indicator is on MEMORY Switch Press this switch to store the frequency of a broadcast station in memory See page 9 for use TUNING UP DOWN Buttons These buttons are used to select the desired frequency in the band selected Press the UP button to tune upscale and the DOWN button to tune downscale 10 1 10 11 20 Shift Button When selection or storing 11 20 of the AM FM RANDOM 20 STATION MEMORY press this button while pressing any of the AM FM RANDOM 20 STATION MEMORY buttons When 1 10 11 20 and 1 11 are pressed at the same time 11 will be selected Otherwise 1 will be selected 11 AM FM RANDOM 20 STATION MEMORY Press these buttons to preset or call up stations 12 FM AM Function Selector Buttons Selects the frequency band as follows FM For reception of FM broadcasts AM For reception of AM broadcasts 13 MONO ST Button Pressing this button alternates the receiving mode between monaural and stereo MONO For reception of monaural or weak FM stations ST For reception of FM stereo When tuned to a stereo signal the tuner will automatic
4. Rejection at 1000 KHz GENERAL Power Requirements Power Consumption Dimensions WxHxD Weight INSTALLATION 87 5 108MHz 11 2dBf 24V IHF 58 20 2dBf 5 6 V IHF 58 40 2dBf 564V IHF 58 0 2 Mono 0 3 Stereo 73dB 71dB 20Hz 15KHz 65dB 1 0dB 50dB 70dB 40dB 35dB 35dB 50dB 300 ohms balanced 75 ohms unbalanced 530 1610KHz 20nV 330nV m 40dB 60dB AC 120V60Hz 14W 422 x 67 x 232mm 16 5 8 x 2 5 8 x 9 3 16 7 04ibs 3 2kg The TX 1200 should never be placed directly on top of a component that generates heat such as a power amplifier Make sure it is not located near a heater radiator or a window that might be left open in the rain Make sure the audio leads are pressed or attached in firmly and are not stretched taut so they could pull loose later Never make or break these connections while your amplifier or preamplifier is switched on The audio output may be connected to the music input of any one of the Aiphone paging adaptors ie PD 1 PD 2 MC A PA T or BX Serie amplifiers CONNECTION m AM Outdoor Antenna T type Roof top FM Antenna FM antenna i 300 2 Saor i 300 22 a ee a Wi Aes ee i am 37 IEG mz Ev 8S 156 Muz mtr Tomos aoee me m oer DESIGN CERTIFIED TO COMPLY WITH sA 7 P ADE N TAIWAN ECC AULES PART 15 SUGFPART C POWER CO Amplifi Turn off all com
5. of the previously preset station will be cleared and replaced by the new entry SAIPHORE anera SES PES TK 200 How to Recall a Preset Station Turn on the power of both the TX 1200 and your amplifier Select either 1 10 or 11 20 with the 1 10 11 20 shift button Press the AM FM RANDOM 20 STATION MEMORY selector button corresponding to the preset station you wish to recall If an FM station has been chosen set the MONO ST switch as required 9 MEMORY BACK UP FUNCTION The contents of the preset station memories and the channel which was received at the last are maintained as long as power is supplied to the tuner if the power plug of the tuner is disconnected they will be cleared about six hours after disconnection A NOTE FOR BEST RECEPTION FM broadcast are prone to several forms of interference the most disturbing ts multi path interference which is analogous to ghosting on your TV set You may find that you have to experiment quite a bit with anten na placement for some stations Particularly weak or distant stations can be received with the MONO switch depressed this also defeats the interstation FM muting which might otherwise interpret the weak signal as simply noise THIS DESIGN HAS BEEN CERTIFIED TO COMPLY WITH PART 15 SUB PART C OF THE FCC RULES AND REGULATIONS
6. ally select and demodulate FM stereophonic broadcasts The STEREO indicator will light when tuned to a stereo broadcast 14 AUTO TUNING Button Pressing this button alternates the tuning mode between automatic and manual When the automatic tuning mode is selected the AUTO TUNING indicator will light When the AUTO TUNING indicator is lit Automatic Tuning By pressing the TUNING UP or DOWN button the tuning frequency scans the frequency band up or down continuously scanning will stop when tuned precisely to a broadcast When this button is in the in When the AUTO TUNING indicator is not lit Manual Tuning When the UP or DOWN button is pressed once the tuning frequency changes to a higher or lower fre quency by one step 100 KHz for FM 10 KHz for AM REAR PANEL 15 OUTPUT Jacks These output the signal received by the TX 1200 Connect to the TUNER or AUX terminals of the Stereo Amplifier or similar amplifier 16 AC Power Cord Connect to an AC socket ANTENNA FOR OPTIMUM RECEPTION FM Antenna lf the TX 1200 is to be used in a strong signal area a T type antenna dipole may provide adequate rece tion To connect this antenna attach its leads to the 300 ohm terminals fully extend the upper Section of the T and position them for greatest sensitivity maximum indication of the SIGNAL indicators when tuned to a broadcast station In weak signal areas a roof top FM antenna will be required A 3 element a
7. ntenna is generally suffices for medium distances and an antenna with 5 or more elements may be required for long distances and frit areas Two types of outdoor antenna are available 300 ohm balanced antennas and 75 ohm unbalanced antenna 300 ohm antennas uses the same fiat twin lead used by most TV antennas 75 ohm antennas uses a Coanisy cable these antennas are recommended for use in high interference areas such as adjacent to a road Whi ignition noise may be present When installing a roof top antenna check that it is pointing in the direction from which most stations are received Do not connect antenna leads to both the 75 ohm and 300 ohin in puts at the same time Use only the terminals corresponding to the antenna and cable being used AM Antenna 1 AM Bar Antenna In an area where signals are strong near to the broadcast stations the AM bar antenna provided on thu rear panel may be adequate This antenna is effective in all areas except where the signal strength in very low or in buildings made from reinforced concrete Position this antenna so that as many SIGNA indicators as possible light when tuned to an AM broadcast 2 Outdoor Antenna If you have difficulty in receiving clear AM broadcasts using the bar antenna connect an external antes na to the AM terminals Set this antenna near a window or outdoors as high as possible do not discon nect the provided AM bar antenna How to connect the coaxial cable to the FM 75Q
8. ponents plifier before making connection For antenna settings and connections see page 7 OPERATIONS INSTRUCTIONS Front Panel SAIPHONE Back Panel gala aa fon 7520 hat Ad RO iy ae ERY TEU D 12 D ami S37 SECO mz fm 8 s ai tus DES GN CERT FED TO COMPLY writes MADE tA Taiwan Antenna Connection Terminals FM 300 ohms Antenna Terminals FM 75 ohms Antenna Terminals GND Terminal AM Antenna Terminal AM Bar Antenna FM Antenna 75 ohm Socket This socket is used for a coaxial 75 ohm antenna cable with a plug FCC PULES PAAT 19 SUBPART C OUTPUT Terminals Connect to the TUNER or AUX terminals of the Stereo Amplifier or similar amplifier LOCATION OF CONTROLS AND THEIR FUNCTIONS 1 POWER Switch Press ON to apply AC power to the tuner Press again to release and switch power OFF NO Function Indicators These light to indicate the selected frequency band as follows FM For reception of FM broadcasts AM For reception of AM broadcasts When the tuner receives an FM stereo broadcast with the MONO ST switch set to ST STEREO posi tion the STEREO indicator will be displayed 3 SIGNAL Strength Indicator Indicates the signal strength at the antenna The indication should be maximum when tuning to AM FM stations D Frequency Display Digitally indicates the AM FM station s frequency AM frequencies are indicated in KHz and FM in
9. terminal Lift for AM reception RECEIVING BROADCASTS VAIPHONE amen STEC Turen TX 4200 Quortz Pu ota SER FM Broadcasis PUND Turn on the power of both the TX 1200 and the amplifier or similar stereo amplifier Press the AUTO TUNING button so that the AUTO TUNING indicator goes off Press the FM function selector for the reception of FM broadcasts Pressing either the TUNING UP or DOWN button while watching the frequency display and the SIGNAL indicator will enable correct tuning to the required station After tuning to the station precisely adjust the volume and other controls of the amplifier for the desired sound refer to your amplifier s manual If the signal is very weak set the MONO ST switch to the MONO position SAIPHONE AMEN STEREO TUNER TX 1200 AM Broadcasts ae wae Turn on the power of both the TX 1200 and the amplifer or similar stereo amplifier Press the AUTO TUNING button so that the AUTO TUNING indicator goes off Press the AM function selector for the reception of AM broadcasts Pressing either the TUNING UP or DOWN button while watching the frequency display and the SIGNAL indicator will enable correct tuning to the desired station After tuning to the station precisely adjust the volume and other controls of the amplifier for the desired sound refer to your amplifier s manual PRESET BROADCAST RECEPTION SAIPHONE AMIFM STEREO Toren TX 200 det Pea RANK T SAN aR SAS
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