Toa DT-940 Operating Instructions Manual
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Toa DT-940 Operating Instructions Manual

Toa DT-940 Operating Instructions Manual

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OPERATING INSTRUCTIONS
AM/FM TUNER
DT-940
Thank you for purchasing TOA's AM/FM Tuner.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

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Summary of Contents for Toa DT-940

  • Page 1 OPERATING INSTRUCTIONS AM/FM TUNER DT-940 Thank you for purchasing TOA’s AM/FM Tuner. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. IMPORTANT SAFETY INSTRUCTIONS ..........3 2. SAFETY PRECAUTIONS ................3 3. INFORMATION TO THE USER ..............4 4. GENERAL DESCRIPTION ................5 5. NOMENCLATURE AND FUNCTIONS ..........5 Front ..........................5 Rear ..........................6 6. RADIO RECEPTION ..................

  • Page 3: Important Safety Instructions

    • Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.

  • Page 4: Information To The User

    • Use the dedicated AC adapter for the unit. Note that the use of other adapter may cause a fire. • Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result.

  • Page 5: General Description

    4. GENERAL DESCRIPTION The DT-940 is an AM/FM radio tuner. 20 receiving channels each of AM and FM broadcasts can be stored in memory, which can be recalled by one- touch key operation. The unit can be mounted on an EIA equipment rack using the optional MB-15B Rack Mounting Bracket.

  • Page 6: Rear

    [Rear] 12 13 14 10. Functional ground terminal 15. Monaural output terminals Hum noise may be generated when external Provide monaural audio output of received radio equipment is connected to the unit. Connecting programs. this terminal to the functional ground terminal Connect the output cable to the "H"...

  • Page 7: Radio Reception

    6. RADIO RECEPTION The following 2 modes are available for receiving the desired frequency. (1) Auto tuning mode: Automatically detects and selects the frequency. (2) Manual tuning mode: The frequency is changed in specified steps, and selected manually. [Keys used for operation] Stereo/Monaural selector key LCD indicator Tuning keys...

  • Page 8: Manual Tuning Mode

    6.2. Manual Tuning Mode Step 1. Press the AM/FM Band selector key to select either AM or FM broadcast. The selected band is displayed on the screen. Step 2. Press the Tuning Key ( ) several times to select the desired receiving frequency. Each time the key is pressed, the frequency increases by 10 kHz for AM broadcasts or by 100 kHz for FM broadcasts.

  • Page 9: Manual Memory Preset

    7.1. Manual Memory Preset Step 1. Tune in the desired frequency. Use Auto tuning or Manual tuning method for broadcast reception. (See p. 7.) Step 2. Press the Memory key. The "CH – –" indication flashes on the LCD indicator. Step 3.

  • Page 10: Recalling The Preset Frequency

    8. RECALLING THE PRESET FREQUENCY [Keys used for operation] AM/FM band selector key LCD indicator Preset memory enter keys Stereo broadcast receiving indication Receiving band (No indication while in Monaural broadcast receiving mode) Receiving frequency Preset channel number Step 1. Press the AM/FM Band selector key to select either AM or FM broadcast. The selected band is displayed on the LCD indicator.

  • Page 11: Key Locking

    DT-940 rear PA amplifier Cable holder RCA stereo cord Note (supplied with the DT-940) AC adapter (supplied with the DT-940) Insert the AC adapter cord near its plug into the cable holder to prevent the plug from coming off.

  • Page 12: Am Antenna Connections

    AM loop antenna setup Finish DT-940 rear Loop antenna (supplied with the DT-940) Notes • When using the supplied AM loop antenna, keep it as far away as possible from speaker cables, audio cables, power cables, and AC adapter. • Connect the loop antenna cables to the antenna terminals so that their cable core wires are exposed several millimeters from the terminals.
  • Page 13 Coaxial cable clamp Coaxial cable AM antenna terminal DT-940 rear AM antenna 75 Ω coaxial cable such as RG-6/U Step 1. Treat the coaxial cable end. 1-1. When using the RG-59/U cable 35 mm 1.

  • Page 14: Fm Antenna Connections

    10.3. FM Antenna Connections Connect the supplied FM wire antenna or a commercially available FM antenna to the FM antenna terminal. DT-940 rear FM wire antenna Cord clamp (supplied with the DT-940) F-type terminal F-type connector Cord clamp Commercial FM antenna...

  • Page 15: Rack Mounting

    Rack mounting screw 5 x 12 (supplied with the MB-15B) CAUTION MB-15B (option) Fiber washer for M5 The rack mounting screws (5 x 12) are (supplied with the MB-15B) dedicated for the TOA equipment racks. Do not use them for other racks.

  • Page 16: Specifications

    FM wire antenna* ........1 For indoor use only, 135 x 125 mm (5.31" x 4.92"), leadwire: 1.2 m (3.94 ft) For indoor use only, element length: 2.2 m (7.22 ft) • Optional product Rack mounting bracket: MB-15B URL: https://www.toa.jp/ 133-07-00121-00...

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