Troubleshooting - NAD T 973 Owner's Manual

T 973manual C.qxd 8/21/2006

TROUBLESHOOTING

PROBLEM
NO SOUND
NO SOUND ON ONE CHANNEL
NO SOUND ON SURROUND CHANNELS
NO SOUND ON CENTER CHANNEL
WEAK BASS/ DIFFUSE STEREO IMAGE
TEMPORARILY SWITCHES TO STANDBY, THEN
SWITCHES BACK ON AUTOMATICALLY
11:39 AM Page 7
CAUSE
• Power AC lead unplugged or power not
switched on
• Speaker not properly connected or damaged.
• Input lead disconnected or damaged
• No surround mode selected
• Mono sound source
• Speakers not properly connected
• Surround volume level too low
• Speaker not connected properly
• Center volume level set too low
• Speakers wired out of phase
• Amplifier is running too hot
SOLUTION
• Check if AC lead is plugged in and power
switched on
• Check connections and speakers
• Check leads and connections
• Select a Surround Mode
• Test system with Stereo or Dolby Surround
material
• Check speakers and connections
• Increase surround volume level
• Check speaker and connection
• Increase center volume level
• Check connections to all speakers in the system
• Let the amplifier cool down
• Remove the excessive load condition
• Speakers must be greater than 4 Ohms nominal
GB
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