NAD C270 owner manual Troubleshooting

Page 7

TROUBLESHOOTING

Problem

Cause

Solution

 

 

 

NO SOUND

• Power AC lead unplugged or power not

• Check if AC lead is plugged in and

 

switched on

power switched on

 

• Input Select switch not set to active input

• Set switch to the active input

 

• Input Level Control turned down

• Turn control up to the correct level

 

 

 

NO SOUND ONE CHANNEL

• Balance control not centred

• Centre Balance control

 

• Speaker not properly connected or

• Check connections and speakers

 

damaged

 

 

• Input lead disconnected or damaged

• Check leads and connections

 

 

 

WEAK BASS / DIFFUSE OR

• Speakers wired out of phase

• Check connections to all speakers in

NO STEREO IMAGE

• Bridge Mode selected when speakers

the system

 

are connected normally

• Disengage Bridge Mode

 

 

 

POWER/PROTECTION LED STAYS RED

• Loudspeakers cabling has a short-circuit

• Turn amplifier off and check

UPON TURNING POWER ON

 

loudspeaker cable connections for both

 

 

speakers at amplifier’s back panel and

 

 

loudspeakers. Turn amplifier on

 

 

 

POWER/PROTECTION INDICATOR TURNS

• Amplifier has over-heated

• Turn amplifier off. Make sure

RED DURING OPERATION

• Overall impedance of loudspeakers

ventilation slots on top and bottom of

 

too low

amplifier aren’t blocked. After amplifier

 

 

has cooled down, turn back on

 

 

• Ensure the overall loudspeaker

 

 

impedance isn’t below 4 ohms

 

 

• Check loudspeaker cables for

 

 

short circuits

 

 

 

GB

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Contents C270 Important Safety Instructions Rear Panel Connections Front Panel Controls Bi-Amping NAD C270 Stereo Power AmplifierExtended volume control range Level matchingSoft Clipping Bare Wires and PIN ConnectorsBridge Mode Speakers a & Speakers BBridge Mode Indicator Front Panel Controls Figure Power ON/OFFSTAND-BY/PROTECTION Indicator Soft Clipping IndicatorTroubleshooting ’utilisateur peut intervenir Amplificateur de Puissance NAD C270Equilibrage des niveaux d’entrée HAUT-PARLEURS a & HAUT-PARLEURS B Commande DE Niveau D’ENTREE Input LevelMode Ponte Bi-AmplificateursCordon Alimentation Secteur Ecretage Doux Soft ClippingMARCHE-ARRET Auto Asservissement Entree Asservissement 12 TriggerIndicateur D’ECRETAGE Doux Soft Clipping Indicateur DE Mode Ponte Bridge ModeDepannage Erweiterter Lautstärkeeinstellungsbereich Endverstärker NAD C270Vom Benutzer reparierbaren Teile PegelabgleichBRIDGE-MODUS Brückenschaltung Eingangspegelsteller Input LevelLautsprecher a + B Speakers a + Speakers B Blanke Drähte UND EndhülsenEingang 12V Trigger Frontplattenelemente Abbildung Netz EIN/AUS Power ON/OFFAnzeige Bridge Mode Wahlschalter 12V Trigger Auto ON/OFFProblemlösung Bi-Amping biamplificación Gama de control de volumen ampliadaAmplificador NAD C270 Hacer coincidir el nivelControl Input Level Nivel DE Entrada Funcionamiento normal Stand-by Protection Controles DEL Panel Delantero FIG Power ON/OFFIndicador Bridge Mode Cordon DE Linea DE CAInvestigacion DE Averias Amplificatore NAD C270 Campo esteso controllo del volumeAppaiamento livello Modo Ponticellare Controllo Livello DI InputAltoparlanti a ED Altoparlanti B Fili Scoperti E Connettori a PiediniIndicatore DEL Modo Ponticellare Bridge Mode Comandi SUL Quadro Anteriore FIG Power ON/OFF ACCESO/SPENTOIndicatore STANDBY/PROTEZIONE Indicatore DI Distorsione Soft ClippingAccende L’UNITA’ Ricerca GuastiNON VI E’ Suono Stereo Assente O SvanitaBi-Amplificação Gama alargada de controlo de volumeAmplificador de Energia NAD C270 Ajustar os níveisInput Level Control Controlo DE Nível DE Entrada Bridge Mode Modo DE Ligação EM PonteSpeakers a & Speakers B Altifalantes a E B 12V Trigger Entrada DE Disparo DE 12 Soft Clipping Limitação SuaveCabo DE Alimentação AC Resolução DE Problemas Soft Clipping Indicator Indicador DE Limitação SuaveUtökat reglerområde på volymkontrollen Nivåmatchning12V Trigger Ingång Högtalarterminaler a & BBryggkoppling 12V Trigger Automatiskt AV OCH PåslagSoft Clipping Indikator STAND-BY/SKYDDSLÄGESINDIKATORBryggkopplingsindikator Felsökning NAD Electronics

C270 specifications

The NAD C270 is a highly regarded power amplifier that has captured the attention of audiophiles and music enthusiasts alike. Known for its impressive performance and reliability, the C270 has become a staple in many home audio systems. This amplifier is part of NAD’s esteemed lineup, which is renowned for its commitment to high-quality sound reproduction and innovative technologies.

One of the key features of the NAD C270 is its robust construction. Built to withstand the rigors of everyday use, the amplifier features a solid chassis designed to minimize vibrations and protect internal components. This sturdy design not only enhances durability but also contributes to the overall sound quality, as stability is crucial for clarity in audio reproduction.

At the heart of the C270 is its impressive power output. The amplifier is capable of delivering a continuous RMS power of 130 watts per channel into 8 ohms, and it can increase its output to 200 watts per channel into 4 ohms. This significant power allows the C270 to drive a wide range of speakers, providing ample headroom for dynamic musical passages. Additionally, it features high current capability, which ensures excellent transient response, allowing it to handle the most demanding musical passages with ease.

The NAD C270 employs advanced technologies that improve its performance and efficiency. One notable feature is its use of NAD’s unique PowerDrive technology. This innovative design allows the amplifier to maintain its dynamic performance while ensuring reliability and protection against overheating. PowerDrive analyzes the output requirements and provides optimal power, ensuring consistent performance regardless of the speaker load.

Another significant aspect of the C270 is its dual-mono design, which provides independent amplification for each channel. This ensures that both the left and right channels operate without interference, resulting in a more immersive listening experience. The symmetrical layout also helps to minimize crosstalk, preserving the integrity of the audio signal.

In terms of connectivity, the C270 offers a variety of input options, allowing it to integrate seamlessly into any audio setup. With RCA inputs for standard connections and a low-level input for preamp connections, the amplifier caters to both classic and modern audio systems.

Overall, the NAD C270 is a powerful and versatile amplifier that embodies the essence of high-fidelity sound. Its combination of robust design, advanced technologies, and impressive performance makes it a popular choice for serious audio enthusiasts seeking to elevate their listening experience. Whether used with high-end speakers or as part of a home theater system, the C270 promises to deliver an audio experience that is both captivating and true to the original recordings.
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