Unwind DT-920 User's Manual
Contents
1. l Q OPERATING INSTRUCTIONS AM FM SYNTHESIZER DT 920 TUNER Please follow the instructions in this manual to obtain the optimum results from this unit We also recommend that you keep this manual handy for future reference TOA Corporation CONTENTS TO USE YOUR UNIT PROPERLY AND SAFELY scssssssssssccescsssesensecsescsssscssscssssssensenssecsascasescesessesssssenesssseeseseesaroaanecsess 1 ACCESSORIES ins issssssssssuativecsescitaneseeavsssneesavacessecstsntitdisievesobedbeciocnsdesdovonndscugsosssbasudevenssioesapesiaeshiondsesedtbadaseacesvavoeissutetedtooiadosae 1 CONNECTIONS A E E A E A TE EOT 2 CONTROLS E EEE E E E E I E EAEE 3 LISTENING TO THE RADIO esssscccsscsrssssssscscsscssssscsccsasssessesssssssassscssssssessassssesssessscseesssessensasssscesseaesoesnesassaeeaceessecacsanenes 3 FREQUENCY UP DOWN TUNING cessssesssesssscesccsvsesscsscssesssesesecsssessustseusssessestsceesveccesesensceeseustseussnsssnsesseeesensenssnssanesess 3 DIRECT TUNING icc csvessscsstcscstacsassscesseserentssccsasesecacenesisusceseecdentuaivannsacnsucuscsivasdvevssachaeducssvincdianavodsesaresdosnastasssouneaderssycedsvess 4 AUTOMATIC OR MANUAL PRESET TUNING iccssscccacejactnsscnsasanstnataanudisstanauliscdecarseussandssanoss anrguubaantceasnasveresosvacsseninneedis 4 LISTENING TO PRESET STATIONS nsien iaiaaeaia naaa a aasit o daersi Sa iiaa daukar siiin 5 A N O E E E T E E E E 6 TROUBLESHOOTING GUDE sic2. 4 Press two PRESET buttons 1 0 while CH is blinking When presetting stations two buttons must be pressed except when presetting CH40 Example CHO01 Press 0 and 1 CHOS Press 0 and 5 CH12 Press 1 and 2 CH 9 Press 3 and 9 CH40 Press 4 only The selected station is now programmed The preset channel number and the frequency of the programmed station appear on the display NOTES You cannot enter preset numbers above CH40 lf a new station is programmed into a band and preset number already containing a programmed station the previously programmed station will be cleared 5 To manually preset stations on the other band press the BAND button then follow steps 1 4 above LISTENING TO PRESET STATIONS Program stations as described in AUTOMATIC OR MANUAL TUNING Using the TUNING UP or DOWN button Using the PRESET button 1 Press the CH FREQ button to select the channel mode FREQ disappears 2 Press the TUNING UP or DOWN button until the desired channel number appears on the display The preset station for the selected channel number can be heard WHAT TO DO IF Ifthe operation of the unit or display is not normal or you wish to clear the contents of the memory disconnect the power cord from the AC outlet then press the RESET button rear of the unit for at least 20 seconds 5 1 Press two PRESET buttons
3. FM 103 5 MHz Press 1 0 3 and 5 AM 560 kHz Press 5 and 6 AM 1680 kHz Press 1 6 and 8 AUTOMATIC OR MANUAL PRESET TUNING Automatic preset tuning APT 1 Press the BAND button to select AM or FM 2 Press the SCAN LEVEL button to select the desired scan level SCAN 1 or SCAN 2 3 Press and hold down the MEMORY button for at least 3 seconds until APT and CH blink then release the button The unit will start atthe low end of the selected band and scan upward higher frequency numbers Up to 20 stations will be memorized automatically After the last station is programmed the lowest preset station number will be selected APT disappears 4 To automatically preset stations on the other band press the BAND button then follow steps 1 3 above IMPORTANT NOTE IfAPT is activated all previously programmed stations will be cleared and new stations will be programmed FM stations will be automatically programmed into CHO1 CH20 AM stations will be automatically programmed into CH21 CH40 NOTE If you try to enter an incorrect station frequency 86 0MHz or 500kHz for example the display will continue to blink until the correct number is entered Manual preset tuning 1 Press the BAND button to select AM or FM 2 Tune in a station as described in FREQUENCY UP DOWN TUNING or DIRECT TUNING 3 Press the MEMORY button MEMO appears and CH blinks
4. 1 0 to select the desired channel number Example CHO01 Press 0 and 1 CHO5 Press 0 and 5 CH12 Press 1 and 2 CH39 Press 3 and 9 CH40 Press 4 only You cannot enter preset numbers above CH40 The preset station forthe selected channel number can be heard lf a channel number which has not been preset is entered appears for2 seconds and the previous station is selected Changing the reception frequencies It is not necessary to perform this procedure in U S A and CANADA 1 Select the band to be changed 2 Turn the power off 3 While pressing the BAND button press the POWER button AM 520 1710 KHz 10 kHz steps 522 1710 kHz 9 kHz steps FM 87 9 107 9 MHz 200 kHz steps 87 5 108 0 MHz 50 kHz steps The preset stations will be retained in the memory even ifthe unit is turned off Ifthe memory contents are lost due to a power failure or other condition preset the stations again N EXTERNAL ANTENNA OUTPUT F 3000 LOOP 1 aaa CHIT Q 20 RESET GND rir MAINTENANCE Cleaning the cabinet WARNING Use a clean soft cloth moistened with plain lukewarm FOR YOUR PERSONAL SAFETY BE SURE TO water and wrung dry Never use benzol benzene or other DISCONNECT THE AC POWER CORD BEFORE strong chemical cleaners since these could damage the PROCEEDING WITH ANY MAINTENANCE OR CLEANING finish of your unit It is important that no liquid reaches
5. the inside of the unit TROUBLESHOOTING GUIDE If you have followed the instruction and are having difficulty operating the unit locate the SYMPTOM in the left column below Check the corresponding POSSIBLE CAUSE and CORRECTIVE ACTION columns to locate and remedy the problem SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION No power when the POWER button is set to No power plug connection at the AC outlet Insert power plug into the AC outlet ON Poor FM reception No antenna is connected Connect the supplied FM antenna to the FM antenna terminals on the rear panel of the unit Refer to the CONNECTIONS section Shorted or faulty connection s between the Check the connections to the FM antenna FM antenna and the tuner terminals on the rear panel of the unit The antenna is not positioned for the best Change the position of the antenna Referto the reception CONNECTIONS section Continuous or intermittent hissing noise Noise caused by motors fluorescent lamps Keep the unit away from noise sources during AM reception especially at night lightning television etc Install an outdoor AM antenna Noise may be reduced but not completely eliminated A humming noise can be heard during AM The power cord may be too close to the AM Position the power cord away from the antenna broadcast reception loop antenna or the antenna wire line and the AM loop antenna Adjust the position of the AM loop antenna The tuner oper
6. N OR MOISTURE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN These markings are located on the bottom side or back of the unit CAUTION TO PREVENT THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit This symbol indicates that there are important operating and maintenance instructions in the literature accompany ing this unit CONNECTIONS 1 Connect the FM and AM antennas as shown below FM antenna The T shaped indoor FM antenna 300 ohm is sufficient to receive most local FM broadcasts and should be connected to the rear FM terminals on the DT 920 Infringe areas or where reception is distorted or noisy an FM outdoor antenna not supplied should be connected instead ofthe indoor antenna The terminals will accept 300 ohm twin lead cable AM antenna The AM loop antenna is sufficient to receive most local AM broadcasts Assemble the loop antenna Unwind the antenna wires about 3 turns then connect them to the AM LOOP terminals Place the loop antenna in a position which yields the best AM reception or attach it to a wall or other surface as shown a NOTE To minimize noise Keep the speaker wires power cord and all other cables away from the antennas Do not place the antenn
7. a close to a TV or speaker 2 Connect one end of a supplied audio cable to the OUTPUT 1 or 2 jack on the TUNER and the other end to the AUX input jack 20 to OdBV 10kQ of the 900 series Il amplifier 3 After making all the connections connectthe AC power cord to 120V AC 60Hz outlet This unit is equipped with a polarized plug If you have difficulty inserting the plug turn it over and reinsert it If the unit will not be used for a long time disconnect the AC plug from the AC outlet CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND CAUTION Loose or incorrect connections will result in poor sound or improper operation 900 SERIES Il AMPLIFIER AUX Oe Case oe PES a a QO oa PUT DT 920 CONTROLS 1 Power button POWER 2 Channel Frequency select button CH FREQ 3 Display MULTI FUNCTION DISPLAY 4 Band select button BAND 5 Tuning button DOWN TUNING UP 6 Preset tuning buttons PRESET 7 Direct in button DIRECT IN 8 Memory button MEMORY 9 Scan level button SCAN LEVEL 10 Automatic Manual tuning select button AUTO MANUAL LISTENING TO THE RADIO Preparation 1 Press the POWER button on the tuner FREQUENCY UP DOWN TUNING Automatic tuning Man
8. ation or display is not normal The memory must be reset Disconnect the power cord then press the RESET button rear of the tuner at least 20 seconds See page 5 Servicing Should this product require service refer to the TOA Electronics Inc TOA Canada Corporation warranty SPECIFICATIONS DT 920 Tuning range AM 520kHz 1710kKHz 10kHz steps 522kHz 1710kHz 9kHz steps FM 87 9MHz 107 9MHz 200kHz steps 87 5MHz 108 0MHz 50kHz steps FM usable sensitivity 14 7dBf AM usable sensitivity 700uV m Power requirements 120V AC 10 60Hz Power consumption 6 Watts Dimensions W x H x D Approx 420 x 82 x 270 mm Weight Approx 2 8 kg IMPORTANT INFORMATION All specifications are subject to change without notice FCC INFORMATION This device complies with Part 15 of the FCC Rules Operation is subject to the condition that this device does not cause harmful interference CAUTION Changes or modifications not expressly approved by TOA may void the user s authority to operate this equipment Printed in Hong Kong 1AD6P1P0022 A TOA Corporation L
9. ccccssvescaticctesee icaticcntessaberaccstcoevindsienessussanscavc adsaasvocasscessatissouiosbisbedcessovanvarorseroceacosiesdiisanedaautes 6 SPECIFICA JON S si siciessasacdecessenesvsesscasgasbveaasccosdenscesossdanaabsasssubesssToieabsedssutesaeedeadsuitandcossaucacegeasdivinyesdaacsisadacdaccaiuseiaadhectnct resiwaas 6 TO USE YOUR UNIT PROPERLY AND SAFELY Do not damage the power cord CAUTION When not in use disconnect the power cord from the THIS UNIT SHOULD NOT BE ADJUSTED OR REPAIRED outlet Grasp the plug not the cord when disconnecting By ANYONE EXCEPT PROPERLY QUALIFIED SERVICE the unit l l PERSONNEL lf water should enter the unit electrical shock or a malfunction may result Use in an area where there is low humidity and little dust WARNING Do not disassemble or alter the unit in any way TO AVOID THE HAZARDS OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE ACCESSORIES lt AM loop antenna FM indoor antenna RCA plug audio cable Part No 614 240 0845 Part No 614 023 7481 Part No 645 005 0534 ATTENTION For your protection in the event of theft or loss of this product please fill in the information below for your own personal records Model No DT 920 Serial No Located on the back of the unit Date of Purchase o ooo o Purchase Price WN oo o oo Where Purchased WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAI
10. ual tuning 1 Press the BAND button to select AM or FM 1 Press the BAND button to select AM or FM 2 Press the CH FREQ button to select the frequency 2 Press the CH FREQ button to select the frequency 3 4 mode FREQ appears Press the AUTO MANUAL button to select the automatic tuning mode AUTO appears Press the SCAN LEVEL button to select the desired scanning level SCAN 1 or SCAN 2 SCAN 1 To receive stations with weak signals SCAN 2 To receive stations with strong signals Press the TUNING UP or DOWN button The unit will scan up or down the band and receive the next station with a signal that is at least as strong as the scanning level selected in step 4 Adjustforthe desired sound quality with the appropriate controls of the connected amplifier mode FREQ appears Press the AUTO MANUAL button to select the manual tuning mode AUTO disappears and MONO appears when FM band is selected Press and hold the TUNING UP or DOWN button until the desired station frequency appears on the display Press and release the TUNING UP or DOWN repeatedly change the selected frequency one step at atime DIRECT TUNING 1 Press the BAND button to select AM or FM 2 Press the DIRECT IN button FM MHz or AM kHz appears and blinks 3 Pressthe PRESET buttons 1 0 to enterthe frequency of a broadcast station Example FM 98 1 MHz Press 9 8 and 1
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