1. Introduzzjoni
Welcome to the instruction manual for your NAD T 748 7.1-Channel Home Theater Receiver. This manual provides essential information for the safe and efficient operation of your new audio-video component. Please read this manual thoroughly before using the receiver and retain it for future reference. It covers setup, operation, maintenance, and troubleshooting to ensure you get the best performance from your unit.
2. Informazzjoni Importanti dwar is-Sigurtà
To prevent fire, electric shock, and damage to the unit, observe the following safety precautions:
- Sors tal-Enerġija: Qabbad l-unità biss ma' sokit tal-AC tal-volumtage speċifikat fuq il-pannell ta 'wara.
- Ventilazzjoni: Ensure adequate ventilation. Do not block ventilation openings. Allow sufficient space around the unit for proper airflow.
- Ilma u Umdità: Tesponix l-unità għax-xita jew għall-umdità. Tpoġġix oġġetti mimlija b'likwidi, bħal vażuni, fuq l-unità.
- Sħana: Tpoġġix l-unità ħdejn sorsi tas-sħana bħal radjaturi, reġistri tas-sħana, stufi, jew apparat ieħor (inkluż amplifiers) li jipproduċu sħana.
- Tindif: Skonnettja l-unità mill-plagg tal-ħajt qabel ma tnaddafha. Uża biss drapp niexef.
- Servizzi: Tippruvax isservi dan il-prodott int stess. Irreferi l-manutenzjoni kollha lil persunal tas-servizz kwalifikat.
3. Setup
3.1 Disimballaġġ
Carefully remove the receiver from its packaging. Please check that all accessories are present:
- NAD T 748 Receiver
- Kontroll mill-bogħod bil-batteriji
- Korda tal-Enerġija
- Antenni FM/AM
- Setup Microphone (for auto calibration)
- Gwida Quick Start
3.2 Konnessjonijiet
Before making any connections, ensure the receiver and all source components are powered off and unplugged from the AC outlet.
3.2.1 Konnessjonijiet tal-Ispeaker
Connect your speakers to the corresponding terminals on the rear panel of the T 748. Observe correct polarity (+ to + and - to -) for all speakers. Ensure speaker wires are securely fastened and do not short-circuit.
- Quddiem Xellug/Lemin: Għall-ħoss stereo prinċipali.
- Ċentru: For dialogue.
- Surround Left/Right: For ambient and directional effects.
- Surround Back Left/Right (or Zone 2): For 7.1 channel setup or multi-room audio.
- Pre-Out tas-subwoofer: Connect to a powered subwoofer.
3.2.2 Audio/Video Source Connections
Connect your audio and video source components (e.g., Blu-ray player, game console, cable box) to the appropriate input jacks on the receiver.
- Inputs HDMI: For high-definition audio and video. Connect HDMI cables from your sources to the HDMI IN ports.
- Ħruġ HDMI: Connect an HDMI cable from the HDMI OUT port to your TV or projector.
- Digital Audio Inputs (Optical/Coaxial): For digital audio sources without HDMI.
- Analog Audio Inputs (RCA): For older audio components.
3.2.3 Konnessjoni tal-Enerġija
Once all audio/video and speaker connections are made, connect the supplied power cord to the AC IN jack on the rear panel of the receiver, then plug the other end into a suitable AC wall outlet.
3.3 Konfigurazzjoni Inizjali
After connecting all components, power on your TV and the receiver.
3.3.1 Wiri fuq l-Iskrin (OSD)
Access the receiver's setup menu via the On-Screen Display (OSD) on your TV. Use the remote control to navigate the menus.
3.3.2 Setup tal-Ispeaker
Use the included setup microphone and the receiver's auto-calibration feature to automatically detect speaker configuration, distance, and levels for optimal sound performance. Alternatively, you can manually configure these settings.
3.3.3 Input Assignment
Assign appropriate names and input types to each connected source for easy selection during operation.
4. Istruzzjonijiet Operattivi
4.1 Operazzjoni Bażika
- Power On/Off: Agħfas il-buttuna POWER fuq il-pannell ta 'quddiem jew il-kontroll mill-bogħod.
- Kontroll tal-Volum: Use the VOLUME knob on the front panel or the VOLUME +/- buttons on the remote control.
- Għażla tal-Input: Press the desired input button (e.g., HDMI 1, CD, OPTICAL) on the front panel or remote control to switch between sources.
- Modi ta' Smigħ: Select various listening modes (e.g., Stereo, Dolby Digital, DTS, NAD EARS) using the MODE button on the remote to optimize sound for different content.
4.2 Karatteristiċi Avvanzati
- Kontrolli tat-Ton: Adjust Bass and Treble levels via the setup menu or dedicated buttons on the remote for personalized sound.
- Zone 2 Operation: The T 748 supports a second audio zone. Refer to the full manual for detailed instructions on setting up and controlling Zone 2.
- Aġġornamenti tal-Firmware: Periodically check the NAD website for firmware updates to ensure your receiver has the latest features and performance enhancements. Follow the instructions provided with the update carefully.
5. Manutenzjoni
5.1 Tindif
To clean the exterior of the receiver, use a soft, dry cloth. For stubborn marks, lightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals or solvents, as they may damage the finish.
5.2 Ħażna
If you plan to store the receiver for an extended period, disconnect it from the power outlet and all connected components. Store it in a cool, dry place, away from direct sunlight and extreme temperatures.
6 Issolvi l-problemi
If you encounter issues with your NAD T 748 receiver, consult the table below for common problems and their solutions.
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| Ebda qawwa | Power cord disconnected; power outlet faulty; unit in standby. | Check power cord connection; try a different outlet; press POWER button. |
| L-ebda ħoss | Incorrect input selected; speaker wires loose; volume too low; mute activated. | Select correct input; check speaker connections; increase volume; deactivate mute. |
| Ebda video | Incorrect input selected; HDMI cable loose or faulty; TV input incorrect. | Select correct input; check HDMI cables; ensure TV is on correct HDMI input. |
| Il-kontroll mill-bogħod ma jaħdimx | Batteries depleted; obstruction between remote and receiver; remote sensor blocked. | Replace batteries; remove obstructions; ensure remote sensor is clear. |
7. Speċifikazzjonijiet
The following specifications are typical for the NAD T 748 7.1-channel home theater receiver. For precise details, please refer to the official product documentation.
- Output tal-Enerġija: 7 x 60 Watts (FTC, 8 ohms, all channels driven)
- Rispons tal-Frekwenza: 20Hz - 20kHz (±0.8dB)
- Proporzjon Sinjal-Ħsejjes: > 92dB (ippeżat A)
- Sensittività tad-dħul: 250mV (line input)
- Inputs HDMI: 4
- Outputs HDMI: 1
- Digital Audio Inputs: 2 Optical, 2 Coaxial
- Inputs Awdjo Analoġiċi: 3 Stereo RCA
- Dimensjonijiet (W x H x D): Madwar 17.1 x 6.7 x 15.4 pulzieri (435 x 170 x 390 mm)
- Piż: Madwar 25 lbs (11.3 kg)
8. Garanzija u Appoġġ
NAD products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty. Please refer to the warranty card included with your product or visit the official NAD websit għal termini u kundizzjonijiet dettaljati tal-garanzija speċifiċi għar-reġjun tiegħek.
For technical support, service, or further assistance, please contact your authorized NAD dealer or visit the support section of the official NAD website. When contacting support, please have your product model and serial number ready.
