NAD Electronics C270 User Manual download pdf (Page 7)

TROUBLESHOOTING

NO SOUND • Power AC lead unplugged or power not

switched on

• Input Select switch not set to active input

• Input Level Control turned down

• Check if AC lead is plugged in and

power switched on

• Set switch to the active input

• Turn control up to the correct level

Problem Cause Solution

NO SOUND ONE CHANNEL • Balance control not centred

• Speaker not properly connected or

damaged

• Input lead disconnected or damaged

• Centre Balance control

• Check connections and speakers

• Check leads and connections

WEAK BASS / DIFFUSE OR

NO STEREO IMAGE

• Speakers wired out of phase

• Bridge Mode selected when speakers

are connected normally

• Check connections to all speakers in

the system

• Disengage Bridge Mode

POWER/PROTECTION LED STAYS RED

UPON TURNING POWER ON

• Loudspeakers cabling has a short-circuit • Turn amplifier off and check

loudspeaker cable connections for both

speakers at amplifier’s back panel and

loudspeakers. Turn amplifier on

POWER/PROTECTION INDICATOR TURNS

RED DURING OPERATION

• Amplifier has over-heated

• Overall impedance of loudspeakers

too low

• Turn amplifier off. Make sure

ventilation slots on top and bottom of

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

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NAD Electronics C270 User Manual Page 7

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