Introducció
This manual provides detailed instructions for the proper setup, operation, and maintenance of your Technics SA-GX303 AV Control Stereo Receiver. Please read this manual thoroughly before using the unit to ensure optimal performance and longevity. The SA-GX303 is designed to deliver high-quality audio and video control for your home entertainment system.

Figura 1: Frontal view of the Technics SA-GX303 AV Control Stereo Receiver, showcasing its display, control knobs, and input buttons.
Característiques clau
- Potència de sortida: 85 W per channel at 8 ohms (stereo).
- Sortida envoltant: 85 W (front), 10 W (rear).
- Resposta de freqüència: 7 Hz a 10 kHz.
- Sensibilitat d'entrada: 3 mV (MM), 200 mV (line).
- Ràtio senyal / soroll: 80 dB (MM), 90 dB (line).
- Speaker Load Impedance: 8 ohms (minimum).
- Integrated AV Control for multiple audio and video sources.
- Inclou un comandament a distància per a un funcionament còmode.
Configuració
1. Desembalatge i col·locació
Carefully remove the receiver from its packaging. Place the unit on a stable, flat surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight. Ensure there is enough space around the unit for proper airflow.
2. Connexió dels altaveus
Connect your speakers to the corresponding speaker terminals on the rear panel of the receiver. Ensure correct polarity (+ to + and - to -) for all speakers. The SA-GX303 supports 8-ohm minimum impedance speakers.
3. Connexió de components d'àudio/vídeo
Use the provided AV cables to connect your audio and video sources (e.g., CD player, VCR, TV, game console) to the appropriate input jacks on the rear panel. For optimal sound, connect your turntable to the PHONO input.

Figure 2: Rear panel of the Technics SA-GX303, illustrating the various audio/video input/output ports, speaker terminals, and power connections.
4. Connexió d'antenes
Connect the included FM and AM antennas to their respective terminals for radio reception. Extend the FM wire antenna fully for better reception.
5. Connexió d'alimentació
Once all connections are made, plug the receiver's power cord into a suitable AC outlet. The unit is designed for AC 120V, 60Hz power.
Instruccions de funcionament
1. Encendre/apagar
Premeu el botó PODER botó del panell frontal o del comandament a distància per encendre o apagar la unitat. La pantalla s'il·luminarà quan la unitat estigui engegada.
2. Selecció d'entrada
Use the input selector buttons (e.g., VCR1, VCR2, CD, SINTONITZADOR, FONO) on the front panel or remote to select your desired audio/video source.
3. Control de volum
Ajusteu el volum principal amb el botó gran VOLUM knob on the right side of the front panel or the volume buttons on the remote control.
4. Sintonitzar la ràdio
Seleccioneu el SINTONITZADOR input. Use the TUNING perilla o el MODE FM / ESCANY DE MEMÒRIA buttons to find radio stations. You can store your favorite stations as presets.
5. Surround Sound Operation
The SA-GX303 features DOLBY ENTORN. Premeu el botó ENVOLTANT button to activate or deactivate the surround sound mode. Adjust the NIVEL POSTERIOR knob to balance the rear speaker output.
6. Tone and EQ Controls
Utilitza el LEVEL/TREBLE i CENTER FRED/BASS knobs to adjust the bass and treble levels. The receiver also features a graphic equalizer function with preset EQ modes (EQ-1, EQ-2, EQ-3, EQ-4) and a manual adjustment option.
Manteniment
Neteja de la unitat
To clean the exterior of the receiver, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water and then wipe dry. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish. Ensure the unit is unplugged before cleaning.
Ventilació
Regularly check that the ventilation openings on the top and sides of the unit are not blocked. Proper ventilation is crucial to prevent overheating and ensure long-term performance.
Resolució de problemes
Sense poder
- Check if the power cord is securely plugged into the wall outlet and the receiver.
- Assegureu-vos que la presa de corrent funcioni.
Sense so
- Verifiqueu que s'ha seleccionat la font d'entrada correcta.
- Check speaker connections for proper polarity and secure attachment.
- Assegureu-vos que el volum estigui pujat i no silenciat.
- Confirm that the speakers are connected to the correct speaker terminals (A or B, if applicable).
Mala recepció de ràdio
- Adjust the position of the FM wire antenna or AM loop antenna.
- Consider connecting an external antenna for improved reception.
- Comproveu si hi ha interferències locals d'altres dispositius electrònics.
El control remot no funciona
- Reviseu i substituïu les piles del comandament a distància.
- Ensure there are no obstructions between the remote and the receiver's remote sensor.
Especificacions
| Fabricant | Tècniques |
| Número de model | SA-GX303 |
| Potència de sortida (estèreo) | 85 W per channel at 8 ohms |
| Surround Output (Front) | 85 W |
| Surround Output (Rear) | 10 W |
| Resposta de freqüència | 7 Hz a 70 kHz |
| Distorsió harmònica total | 0.05% |
| DampFactor | 20 |
| Input Sensitivity (MM) | 3 mV |
| Input Sensitivity (Line) | 200 mV |
| Signal-to-Noise Ratio (MM) | 80 dB |
| Relació senyal-soroll (línia) | 90 dB |
| Speaker Load Impedance | 8Ω (minimum) |
| Dimensions (L x A x A) | 44.45 x 35.56 x 13.72 cm |
| Pes | 9.09 kg |
| Dispositius compatibles | Smartphone, Tablet, PC, Game Console, TV, Amplifier, altaveu |
Garantia i Suport
For any questions or issues not covered in this manual, please contact Technics customer support. While specific warranty details are not provided here, please refer to your purchase documentation or the official Technics website for warranty information applicable to your region. Always provide your model number (SA-GX303) when seeking support.
Fabricant: Tècniques
Model: SA-GX303





