S.M.S.L SD-793II Optical Coaxial DAC Digital to Analog Converter with Built-in Headphone AmpManwal ta 'l-Utent aktar ħaj

Introduzzjoni

The S.M.S.L SD-793II is a high-performance Digital-to-Analog Converter (DAC) with an integrated headphone amplifier. It is designed to convert digital audio signals from various sources into high-fidelity analog audio, suitable for connection to amplifiers, active speakers, or headphones. This manual provides essential information for the proper setup, operation, and maintenance of your SD-793II unit.

Figure A: The S.M.S.L SD-793II unit, a compact digital to analog converter with integrated headphone ampaktar ħaj.

Karatteristiċi tal-Prodott

• Utilizes the advanced DIR9001 digital receiver chip, supporting up to 24-bit/96KHz signal reception.
• Incorporates the high-quality PCM1793 D/A converter chip for 192K/24Bit audio conversion.
• Features an active low-pass filter output with an OPA2134 operational amplifier, which can be changed by the user for sound customization.
• Supports both coaxial and optical fiber digital audio inputs with a convenient switch.
• Integrated headphone amplifier with a 6.35mm headphone jack on the front panel.
• Provides both RCA and headphone jack analog audio outputs.
• Constructed with a durable aluminum shell, precision CNC processed, with an oxidized finish and a custom solid aluminum anti-skid volume knob.

Kontenut tal-Pakkett

Jekk jogħġbok iċċekkja l-pakkett għall-oġġetti li ġejjin:

• S.M.S.L SD-793II DAC Unit
• Adapter tal-Enerġija (DC 9V)
• Gwida Quick Start

Jekk xi oġġetti huma nieqsa jew bil-ħsara, jekk jogħġbok ikkuntattja lill-bejjiegħ tiegħek.

Figure B: The S.M.S.L SD-793II unit shown with its power adapter and retail packaging.

Istruzzjonijiet tas-Sigurtà

• Provvista tal-Enerġija: Uża biss l-adapter tal-enerġija pprovdut. Kun żgur li l-volumtage taqbel mal-provvista tal-enerġija lokali tiegħek.
• Ventilazzjoni: Timblokkax xi fetħiet tal-ventilazzjoni. Kun żgur li jkun hemm fluss tal-arja adegwat madwar l-unità biex tevita li tisħon iżżejjed.
• Ilma u Umdità: Tesponix l-unità għax-xita, umdità, jew likwidi li jqattru/jittajru. Tpoġġix oġġetti mimlija b'likwidi, bħal vażuni, fuq l-unità.
• Sorsi tas-Sħana: Żomm l-unità 'l bogħod minn sorsi ta' sħana bħal radjaturi, reġistri tas-sħana, stufi, jew apparat ieħor (inkluż amplifiers) li jipproduċu sħana.
• Servizzi: Tippruvax isservi dan il-prodott int stess. Irreferi l-manutenzjoni kollha lil persunal tas-servizz kwalifikat.
• Tindif: Unplug the unit from the power outlet before cleaning. Use a dry, soft cloth only.

Setup

1. Qabbad l-Enerġija: Insert the DC 9V power adapter into the "DC+9V" input jack on the rear panel of the SD-793II. Plug the adapter into a wall outlet.
2. Connect Digital Audio Source:
   • Input ottiku: Connect an optical fiber cable from your digital audio source (e.g., TV, CD player, game console) to the "OPTICAL" input on the rear panel.
   • Input koassjali: Connect a coaxial cable from your digital audio source (e.g., DVD player, computer sound card) to the "COAXIAL" input on the rear panel.

   Importanti: Ensure your digital audio source is configured to output PCM stereo audio. Multichannel formats like Dolby Digital or DTS are not supported and may result in no sound or clicking noises.
3. Connect Analog Audio Output:
   • Output RCA: Connect RCA cables from the "R OUT" (right) and "L OUT" (left) jacks on the rear panel to your amplifier, active speakers, or other analog audio input device.
   • Ħruġ tal-headphones: For private listening, plug your headphones into the 6.35mm headphone jack on the front panel.

Figure 1: Rear panel connections of the SD-793II, illustrating optical, coaxial digital inputs, RCA analog outputs, and the DC 9V power input.

Figure 2: Front panel controls of the SD-793II, including the power button, input select button, 6.35mm headphone jack, and volume control knob.

Istruzzjonijiet Operattivi

1. Power On/Off: Press the "POWER" button on the front panel to turn the unit on or off. An indicator light will illuminate when the unit is powered on.
2. Agħżel Input: Press the "SELECT" button on the front panel to switch between the optical and coaxial digital inputs. The corresponding indicator light will show the active input.
3. Adjust Headphone Volume: Rotate the large knob on the front panel to adjust the volume for the connected headphones. This control only affects the headphone output. The RCA line output is fixed.

Manutenzjoni

• Tindif: Use a soft, dry cloth to wipe the exterior of the unit. Do not use liquid cleaners or solvents.
• Ħażna: Jekk se taħżen l-unità għal perjodu estiż, skonnettjaha mill-provvista tal-enerġija u aħżenha f'post frisk u niexef.
• Sostituzzjoni tal-Komponent: The OPA2134 operational amplifier is user-changeable. If you choose to replace it, ensure the unit is powered off and unplugged. Exercise caution and refer to appropriate guides for safe component handling.

Issolvi l-problemi

• Ebda Ħsejjes tal-Ħsejjes:
  • Kun żgur li l-unità hija mixgħula u li l-adapter tal-enerġija huwa konness sew.
  • Verify that the correct input (Optical or Coaxial) is selected using the "SELECT" button.
  • Check all audio cable connections (digital input, RCA output, headphone).
  • Confirm that your digital audio source is outputting PCM stereo audio, not a multichannel format (e.g., Dolby Digital, DTS). Adjust source settings if necessary.
  • If using headphones, ensure the volume knob is turned up.
  • Test with a different audio source or output device to isolate the problem.
• Kwalità tal-Ħoss Mgħawġa jew Fqira:
  • Iċċekkja għal konnessjonijiet tal-kejbil maħlula.
  • Ensure the digital audio source is set to PCM stereo output.
  • Ivverifika li s-sample rate and bit depth of the input signal are within the supported range (up to 24-bit/96KHz for DIR9001, 192K/24Bit for PCM1793).
  • If using headphones, ensure they are properly connected and not damaged.
• Clicking Noise from Unit:
  • A mechanical relay inside the unit may produce a click when the audio signal starts or stops, or when switching sources. This is normal operation.
  • If continuous clicking occurs, ensure your digital audio source is set to PCM stereo output, not a multichannel format.
• L-Unità Ma Tixgħelx:
  • Iċċekkja l-konnessjoni tal-adapter tal-enerġija kemm mal-unità kif ukoll mas-sokit tal-ħajt.
  • Kun żgur li s-sokit tal-ħajt jaħdem.
  • Ipprova żbokk tad-dawl differenti.

Speċifikazzjonijiet

Informazzjoni dwar Garanzija

S.M.S.L products are designed and manufactured to the highest quality standards. Specific warranty terms and conditions may vary by region and retailer. Please retain your proof of purchase for any warranty claims. For detailed warranty information, refer to the documentation provided with your purchase or contact your authorized S.M.S.L dealer.

Appoġġ għall-Klijent

For technical assistance, troubleshooting, or service inquiries, please contact your local S.M.S.L distributor or the retailer from whom you purchased the product. You may also visit the official S.M.S.L websit għal riżorsi addizzjonali u informazzjoni ta’ kuntatt.