NAD C270 owner manual Troubleshooting

Models: C270

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TROUBLESHOOTING

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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Page 7
Image 7
NAD C270 owner manual Troubleshooting