Xantech AM/FM Radio Tuner Stereo System User Manual
Contents
1. RS 232 oO jo i TUNER IN r UNER IN Amplifier Amplifier FM Antenna Connect an outdoor FM antenna to the FM 750 socket Generally a 3 element antenna will be sufficient if you live In an area where the FM signals are particularly weak it may be necessary to use one with 5 or more elements If standard FM broadcast frequencies are available via your cable service you may connect your 75 ohm FM antenna jack to your cable system Please contact your cable service to discuss this option AM Indoor Loop Antenna The high performance AM loop antenna provided with this unit is sufficient for good reception in most areas To stand the loop antenna on a surface fix the claw to the slot Connect the loop antenna s wires to the AM antenna terminals as shown How to connect Press the lever insert the end of the cord then release the lever Make sure it is fastened securely by pulling the cord lightly Make sure only the bare stripped wire is inserted in the jack and that no plastic insulation is preventing contact between the antenna wire and terminal s Place the antenna on a shelf for example or hang it on a window frame etc in the direction which gives the best reception as far away as possible from the entire system speaker cords and the power cord to prevent unwanted noise e f the AM loop antenna provided does not deliver su2. Stereo FM stereo broadcasts are received in stereo and the STEREO indicator lights in the display Mono To compensate for weak FM stereo reception select this mode Reception will now be forced monaural reducing unwanted noise Preset Tuning 1 O O Manual Memory Presetting E While the MEMORY indication is flashing select the preset you would like to use for this station by EITHER You can store your favorite FM and AM stations into any of the 30 preset locations by Scroll up or down using the TUNING PRESET buttons until the preset is displayed Then press the MEMORY button to store El Select the AM or FM band by pressing the corresponding band button TUNING PRESET MEMORY Fl Press the DIRECT button to select the manual tuning mode OR enter the 2 digit preset number using the numeric pad For instance 05 will store the station in preset number 5 25 Q will store the station in preset location 25 The preset will y automatically be stored and the memory indication will stop flashing DIRECT El Select the station you would like to store by scrolling through the station using the TUNING PRESET buttons or directly tune O ATP O 5 6 8 O the station by using the numeric buttons TUNING PRESET 9 AS Once the station is tuned press the MEMORY bu
3. _ e Do not expose this apparatus to dripps or splashes e Do not place any objects filled with liquids such as vases on the apparatus e Do not install this apparatus in a confined space such as a book case or similar unit e he apparatus draws nominal non operating power from the AC outlet with its POWER switch in the off position For CANADA AC POWER CORD CONNECTION CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT Important Safety Instructions 2 B Before Use _ 3 Remote Control Unit 3 4 Names of Each Control 6 Radio Reception 8 Proset TUNING UIS 9 Troubleshooting CR ee ds 10 Specifications _ 11 AppendixA RS 232 5 12 Read this before operation Choose the installation location of your unit carefully Avoid placing it in direct sunlight or close to a source of heat Also avoid locations subject to vibrations and excessive dust heat cold or moisture Do not open the cabinet as this might result in damage to the circuitry or electrical shoc
4. xantech XDT AM FM STEREO DUAL TUNER OWNER S MANUAL REMOTE SENSOR STANDBY ON 1 TUNING PRESET Thank you for choosing XANTECH Read this manual carefully to get the best performance from this unit Important Safety Instructions CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION REDUCE THE RISK OF ELECTRIC SHOCK DO NOT Important Safety Instructions 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle 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 a risk of electric shock to persons The exclamation point within an equilateral triangle 15 intended to alert the user to the presence of important operating and maintenance servicing Instructions in the literature accompanying the appliance WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE For U S A This equipment has been tested and found to comply with the limits for a Class
5. B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the equipment and or the receiving antenna e Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help CAUTION Changes or modifications to this equipments not expressly approved by the manufacturer for compliance will void the user s warranty CAUTION 00 NOT REMOVE THE PROTECTIVE HOUSING USING SCREWDRIVER e IF THIS PRODUCT DEVELOPS TROUBLE MAKE A CONTACT WITH OUR SERVICEMAN AND DO NOT USE THE PRODUCT IN A TROUBLED STATE 10 11 12 13 14 7 Do not block any ventilation openings Install in accordanc
6. unit Radio Reception El Press the POWER switch to turn the unit on POWER C STANDBY ON L S Fl Select the AM or the FM band by pressing the corresponding button El Press the DIRECT button to select the manual tuning mode QS Select the station you want to listen to e TUNED is displayed when a broadcast is correctly tuned in A Auto Selection TUNING PRESET il AS Hold down the TUNING PRESET button for 0 5 to 2 seconds When a station ts tuned in the tuning process will stop automatically If you want to stop the tuning process TUNING PRESET button press the Manual Selection Selecting stations which cannot be tuned automatically TUNING PRESET pow AS When the TUNING PRESET button is pressed momentarily 0 5 second or less the frequency changes by a fixed step FM 0 2 MHz steps AM 10 kHz steps Press the TUNING PRESET button repeatedly until the station you want to listen to is found Direct Tuning Input the frequency numbers with the numeric buttons 1 2 3 4 O O O O 5 6 7 8 O O O 9 0 O Example To select FM 88 30 MHz 8 8 3 To select 1220 kHz 1 2 2 0 e When no button is pressed for 3 seconds the mode will be cancelled FM MODE Button FM MODE TUNER 1 FM MODE TUNER 2 Pressing this button alternates between Stereo mode and Mono mode
7. Dimensions W xH xD 435 x 95 x 270 mm 17 1 8 x 3 3 4 x 10 5 8 4 kg 8 13 16 Ibs Standard Accessories Remote Control Unit x 1 Battery AAA R03 UM 4 x 2 AM Loop Antenna x 1 FM adapter x 1 RCA Cord x 2 e Improvements may result in specifications and features changing without notice e Illustrations may differ slightly from production models 11 Appendix A XDT DUAL AM FM TUNER RS 232 COMMANDS PURPOSE This document describes the RS 232 commands that will operate the XANTECH XDT Dual Tuner through the 9 pin RS 232 connector on the rear panel General Information RS 232 Pin Assignment amp Protocol Specification Data Rate 19 200 baud Connector Female DB9 Data Transmission Speed 19 200 bps Parity N Pin 3 Rx Data Command Spacing gt 25msec arity one Pin 2 Tx Data Character Length 8 bit Word length 8 data bits 1 stop bit Pin 5 Ground Parity Bit None Handshake No RTS CTS handshaking Stop Bit 1 bit Transfer Bit LSBit Fast Connections simple 3 wire Rx Tx Gnd interface 5244 Rx Data lt lt serial buss should follow standard serial Tx Data Rx Data communications protocol using Line oriented ASCII data B stream command line must be followed with a Ground Ground carriage return for the unit to respond The unit should not echo characters received back
8. Y TUNER AG Ho WE Vv PRESET DIRECT MEMORY F H 2 FM AM HODE M 2 1 2 3 4 5 6 7 8 9 TUNING PRESET A REMOTE SENSOR When operating the remote control unit point it towards the REMOTE SENSOR STANDBY indicator This indicator lights when the unit is in the standby mode When the unit is turned on it goes off POWER switch Press this switch to turn the unit on or off The equipment draws nominal non operating power from the AC outlet with its POWER switch in the OFF position gt FM button AM button Use these buttons to select FM or AM 3 FM MODE button Use this button to select stereo or monaural PRESET button Use this button to select the preset tuning mode 9 DIRECT button Use this button to select the manual tuning mode You can use the numeric buttons to directly input frequency numbers 1 MEMORY button Use this button to store preset channels into memory Il TUNING PRESET buttons Use these buttons to tune in a station F Numeric buttons These buttons are used either to input frequency numbers or to select preset stations 4 Display Note To simplify explanations instructions refer to names of buttons and controls on the front panel making no mention of the use of remote control
9. correctly Battery Installation Remove the battery compartment cover Insert two AAA R03 UM 4 dry batteries Make sure that the batteries are inserted with their positive and negative poles positioned correctly Close the cover Battery Replacement If the distance required between the remote control unit and main unit decreases the batteries are exhausted In this case replace the batteries with new ones Precautions concerning batteries Be sure to insert the batteries with correct positive 6 and negative polarities Use batteries of the same type Never use different types of batteries together Rechargeable and non rechargeable batteries can be used Refer to the precautions on their labels When the remote control unit is not to be used for a long time more than a month remove the batteries from the remote control unit to prevent them from leaking If they leak wipe away the liquid inside the battery compartment and replace the batteries with new ones Do not heat or disassemble batteries and never dispose of old batteries by throwing them in a fire CAUTION Turn off the power of all the equipment before making connections Read instructions of each component you intend to use with this unit e Be sure to insert each plug securely To prevent hum and noise do not bundle the connection cords with the power cord ANTENNA AUDIO OUT eaa Tio
10. e with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 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 provided 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 receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods 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
11. fficient reception often due to being too far from the transmitter or in a concrete building etc it may be necessary to use an outdoor AM antenna Use either a high quality commercial AM antenna or if not available an insulated wire more than 15 ft 5 m long strip one end and connect this to the terminal as shown The antenna wire should be strung outdoors or indoors near a window For better reception connect the GND terminal to a reliable ground Note Even when using an outdoor AM antenna do not disconnect the AM loop antenna 9 AUDIO OUT Connect the component with RCA pin cords Make sure to connect white plug white jack L left red plug red jack R right Power cord AC Be sure to connect the power cord to an AC outlet which supplies the correct voltage Hold the power plug when plugging or unplugging the power cord 3 REMOTE Used for a wired remote control unit optional RS 232 Used for a wired RS 232 standard remote control unit optional Names of Each Control REMOTE O O O X O O O X 4 5 STANDBY ON FM PRESET DIRECT MEMORY TUNING PRESET F L e o V 2 u dE 111 Al MODE PRESET DIRECT MEMORY TUNING PRESET STANDBY ON 1 2 3 4 5 6 7 8 TUNING PRESET PRESET DIRECT MEMOR
12. is T1B2P00F 1011811 T1 tuner 1 B2 FM 00 no preset selected F1011 frequency 101 1 MHz S11 signal lock amp stereo Shortcut Commands Note examples below are assuming Tuner 1 is in FM stereo mode and tuned to a station Response Action T1N1 lt cr gt 1 would step up to the next higher preset number T1L01 lt cr gt Tuner 1 would set the currently tuned station as FM preset 1 12 REMOTE SENSOR STANDBY ON TUNING PRESET Vv Nt AM FM STEREO DUAL TUNER This appliance has a serial number located on the rear panel Please record the model number and serial number and retain them for your records Model number Serial number xantech XDT Xantech Corporation 13100 Telfair Avenue Second Floor Sylmar CA 91342 3573 Sales 800 843 5465 Fax 818 362 9506 Thank you for choosing XANTECH Read this manual carefully to get the best performance from this unit Part No 08901025 Rev A 07 13 04
13. k If a foreign object should get into the set contact your dealer When removing the power plug from the wall outlet always pull directly on the plug never yank the cord Do not attempt to clean the unit with chemical solvents as this might damage the finish Use a clean dry cloth Keep this manual in a safe place for future reference Maintenance If the surface of the unit gets dirty wipe with a soft cloth or use diluted mild soap liquid Be sure to remove any excess completely Do not use thinner benzine or alcohol as they may damage the surface of the unit CAUTION The product shall not be exposed to dripping or splashing and that no object filled with liquids such as vases shall be placed on the product Do not install this equipment in a confined space such as a book case or similar unit The provided Remote Control Unit allows the unit to be operated from a distance When operating the remote control unit point it towards the REMOTE SENSOR on the front panel of the unit Even if the remote control unit is operated within the effective range remote control operation may be impossible if there are any obstacles between the unit and the remote control If the remote control unit is operated near other appliances which generate infrared rays or if other remote control devices using infrared rays are used near the unit it may operate incorrectly Conversely the other appliances may operate in
14. to the host DATA ENTRY PROTOCOL Command Codes Character Range ame 0 1 1 2 1 2 00 30 4 numbers F0890 890 F1045 104 5 FM A 01 Seek Up Down AO Seek Down A1 Seek Up M 01 Step Up Down IMO Step Down 1 step 1 Step Up 1 step Signal Lock S00 just for status no signal no stereo S01 invalid Stereo Presence S10 signal lock mono 11 signal lock stereo BN Query status Q1 Status of Tuner 1 Q2 Status of Tuner 2 of tuner Q3 Status of both tuners 1 then 2 N 0 Preset Step Up Down NO Step Down 1 Preset 1 Step Up 1 Preset Cd Command Examples T1B2P01 lt cr gt would command tuner 1 to select band 2 FM and tune to FM preset 1 T2B1F1070L03 cr would command tuner 2 to set AM frequency 1070 kHz as AM preset 3 This command however would not change the current station tuned on Tuner 2 To select a station to be tuned and THEN set that station as a preset would require two commands T2B1F1070 cr would command tuner 2 to select band 1 AM and tune to frequency 1070 kHz T2L03 lt cr gt would command tuner 2 to set the currently tuned station in this example AM 1070 as AM preset 3 Query Example Q1 lt cr gt would solicit the following response Feedback as to the status of tuner 1 which would include band select station preset frequency tuned signal lock and stereo presence The response string would look like th
15. tton To store more stations repeat steps El through MEMORY D 10 Preset Tuning 2 Troubleshooting dii lii TUNER 2 How to select preset stations El Select the AM or the FM band by pressing the corresponding button FM AM Press the PRESET button PRESET D El Select a preset channel using the numeric buttons Or press the TUNING PRESET button repeatedly until the desired preset station is found lt lt O O 50771 SNS Memory Backup Settings are stored permanently even when power Is turned off and the unit is unplugged If you experience any problems with the unit please take a moment to look through this chart and see if you can solve the problem yourself before you call your dealer or service center No power gt Check the connection to the AC power supply Check and make sure the AC source is not a switched outlet and that if It is the switch is turned on Make sure there is power to the AC outlet by plugging another item such as a lamp or fan Cannot listen to any station or signal is too weak Make sure the antenna is properly connected gt une in the station properly gt f a TV is near the unit turn it off gt Install the antenna again after relocating it to a better reception position An external antenna may be required Tho
16. ugh the broadcast is stereo it sounds monaural gt Press the FM MODE button Remote control doesn t work gt Press the POWER switch to turn the unit on f the batteries are dead change the batteries gt Use remote control unit within the range bm 15ft and point at the front panel gt Clear obstacles between the remote control unit and the main unit gt f a strong light is near the unit turn it off If normal operation cannot be recovered unplug the power cord from the outlet and plug it again Specifications FM Tuner Section Without notes 98 1 MHz 65 dBf Tuning Range 87 5 MHz 107 9 MHz 200 kHz steps Usable Sensitivity Mono 15 dBf 50 dB Quieting Sensitivity Mono 21 dBf Stereo 41 dBf Total Harmonic Distortion 1 kHz Mono 0 3 Stereo 0 4 Frequency Response 30 Hz 15 kHz 1 5 dB Stereo Separation 1 2 40 dB Signal to Noise Ratio Mono 67 dB Stereo 63 dB AM Tuner Section Tuning Range 530 kHz 1 710 kHz 10 kHz steps Usable 64 dB m Total Harmonic Distortion 196 at 85 dB m Signal to Noise 40 dB at 85 dB m General Power 120 V AC 60 Hz Power 12W
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