SANSUI TU-α707i

SANSUI TU-α707i Digital Synthesizer FM/AM Tuner

Model: TU-α707i | Brand: SANSUI

Indledning

This manual provides detailed instructions for the proper setup, operation, and maintenance of your SANSUI TU-α707i Digital Synthesizer FM/AM Tuner. Please read this manual thoroughly before using the unit to ensure optimal performance and longevity. Keep this manual for future reference.

Sikkerhedsoplysninger

  • Strømforsyning: Tilslut kun enheden til en stikkontakt med vekselstrøm.tage angivet på enheden.
  • Ventilation: Sørg for tilstrækkelig ventilation. Bloker ikke ventilationsåbningerne, og placer ikke enheden på bløde overflader, der kan hindre luftstrømmen.
  • Fugt og væsker: Udsæt ikke enheden for regn, fugt eller dryppende/sprøjtende væsker. Placer ikke genstande fyldt med væsker, såsom vaser, på enheden.
  • Varme: Hold enheden væk fra varmekilder såsom radiatorer, varmeregistreringsapparater, komfurer eller andre varmeproducerende apparater.
  • Rensning: Disconnect the power cord from the wall outlet before cleaning. Use a soft, dry cloth. Do not use liquid cleaners or aerosol cleaners.
  • Service: Forsøg ikke selv at servicere dette produkt. Overlad al service til kvalificeret servicepersonale.

Produktegenskaber

The SANSUI TU-α707i Digital Synthesizer FM/AM Tuner incorporates advanced technologies for superior audio reception and quality:

  • Equipped with SANSUI's unique Super Linear System digital synthesizer FM/AM tuner.
  • Features SANSUI's unique Super Linear Receiving Circuit (SLRC), achieving both high-sensitivity reception for weak signals and effective interference rejection for strong signals.
  • The IF section includes a WIDE/NARROW bandwidth switching mechanism. WIDE mode provides high-quality reception with low distortion, while NARROW mode minimizes adjacent station interference in strong signal areas, ensuring reliable reception of the desired station.
  • Incorporates the newly developed Super Linear Detector Circuit (SLDC) for linear detection of audio signals from FM waves.
  • The MPX section utilizes SANSUI's original digital decoder SLDD IV. This digital processing method avoids harmonic components that can cause adjacent station demodulation, precisely stereo demodulating only the desired station's signal.
  • The power supply section employs a multi-power supply circuit that independently supplies power to the audio, RF, and control systems, enhancing stability and performance.
  • Equipped with A/B two-system antenna inputs and a switching function. This allows for adaptation to the arrival direction of radio waves from different FM stations, achieving optimal reception.
  • Features a direct input function for tuning by entering the desired station's frequency using the 10-key pad. Includes one-touch preset memory, memory scan for quickly selecting preset stations, and a LAST-2 memory function for programmed recording of two broadcast stations.
Front view of the SANSUI TU-α707i Digital Synthesizer FM/AM Tuner
This image displays the front panel of the SANSUI TU-α707i tuner, featuring its display, control buttons, and tuning knob.

Opsætning

1. Antennetilslutning

Connect your FM and AM antennas to the corresponding terminals on the rear panel of the tuner. The TU-α707i features two FM antenna inputs (A and B) to optimize reception from different directions. Use a 75Ω coaxial cable for FM antenna connections. For AM, connect the supplied loop antenna or an external AM antenna.

2. Lydudgangsforbindelse

Connect the audio output jacks (RCA L/R) of the TU-α707i to an available input on your amplifier or receiver (e.g., 'Tuner' or 'Aux' input) using appropriate RCA audio cables.

3. Strømtilslutning

Plug the power cord into an AC wall outlet. Ensure the voltage matcher enhedens specifikationer.

Betjeningsvejledning

1. Tænd/sluk

Tryk på POWER-knappen på frontpanelet for at tænde eller slukke enheden.

2. Selecting FM/AM Band

Press the FM or AM button to select the desired broadcasting band.

3. Indstilling af stationer

  • Direkte indgang: Use the 10-key pad to directly enter the frequency of the desired station. Press the 'Enter' button to confirm.
  • Forudindstillet hukommelse: The tuner supports 10 preset stations for both FM and AM. To recall a preset station, press the corresponding preset number button.
  • Hukommelsesscanning: Activate the Memory Scan function to quickly cycle through and listen to your preset stations.
  • Manuel indstilling: Use the tuning knob or up/down arrow buttons to manually adjust the frequency.

4. FM Bandwidth Selection (WIDE/NARROW)

For FM reception, press the WIDE/NARROW button to switch between bandwidth modes. Use WIDE for optimal sound quality in strong signal areas and NARROW to reduce interference from adjacent stations in crowded broadcast environments.

5. Antenna A/B Switching

If you have connected two FM antennas, use the A/B antenna selector button to switch between them. Select the antenna that provides the best reception for the current station.

6. LAST-2 Memory Function

The LAST-2 memory function allows you to program and quickly switch between two specific broadcast stations, useful for timed recording with an external recorder.

Opretholdelse

Rengøring af enheden

To clean the exterior of the tuner, first disconnect the power cord. Use a soft, dry cloth to wipe surfaces. For stubborn dirt, lightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the finish. Do not allow liquids to enter the unit.

Almen pleje

Ensure the unit is placed in a well-ventilated area to prevent overheating. Avoid exposing the tuner to direct sunlight, extreme temperatures, or high humidity. Regularly check cable connections to ensure they are secure.

Fejlfinding

If you experience issues with your SANSUI TU-α707i, refer to the following common problems and solutions:

ProblemMulig årsagLøsning
Ingen strømNetledningen er frakoblet; stikkontakten er defektKontroller strømkablets forbindelse; prøv en anden stikkontakt
Ingen lydAudio cables disconnected; Amplifier input not selected; Tuner volume too low (if applicable)Kontroller lydkabelforbindelserne; Vælg den korrekte indgang på amplifier; Adjust amplifier volumen
Poor FM/AM receptionAntenna not connected or poorly positioned; Interference; Incorrect bandwidth selectedConnect/adjust antenna position; Try switching FM antenna A/B; Switch FM bandwidth (WIDE/NARROW); Move unit away from other electronic devices
Cannot tune to a specific stationIncorrect frequency entered; Station out of rangeVerify frequency input; Try manual tuning; Check local broadcast availability

Hvis problemet fortsætter efter at have prøvet disse løsninger, bedes du kontakte kvalificeret servicepersonale.

Specifikationer

FeatureSpecifikation
ModelFM / AM-tuner
MærkeSANSUI
Producentens modelnummerTU-α707i
Tuner typeAM, FM
FM Usable Sensitivity10.8 dBf
FM SN50dB Sensitivity (Mono)16.2 dBf
FM SN50dB Sensitivity (Stereo)37.0 dBf
FM Effective Selectivity (Wide)60dB
FM Effective Selectivity (Narrow)75dB
FM SN Ratio (Mono)98dB
FM SN Ratio (Stereo)91dB
FM Distortion (Stereo)0.0095 %
FM-separation60dB eller mere
FM Image Rejection Ratio80dB
FM Spurious Rejection Ratio120dB
FM IF Rejection Ratio120dB
Antenne impedans75Ω
FM/AM Preset Memory10 stations (each band)
AM Usable Sensitivity48 dB/m
AM Effective Selectivity (Wide)30dB
AM Effective Selectivity (Narrow)50dB
AM SN Ratio50dB
AM Distortion0.3 %
Nominelt strømforbrug12W
Dimensioner (B×H×D)448 × 98 × 315 mm
Vægt5.1 kg
ASINB085DDDHR2

Garanti og support

For warranty information and customer support, please refer to the warranty card included with your product or visit the official SANSUI website. Keep your purchase receipt as proof of purchase for any warranty claims. Do not attempt to repair the unit yourself, as this may void your warranty.