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Additional information
12
106
En
Settings
Symptom
Remedy
The Auto MCACC Setup 
continually shows an error.
• The ambient noise level may be too high. Keep the noise level in the room as 
low as possible (see also Problems when using the Auto MCACC Setup on 
page 40). If the noise level cannot be kept low enough, you will have to set up 
the surround sound manually (page 93).
• When using only one surround back speaker, connect it to the SURROUND 
BACK L
 (Single) terminals.
• To use a 5.1-channel speaker set, use the surround speakers for the surround 
channel, not the surround back channel.
• Make sure there are no obstacles between the speakers and the microphone.
• If Reverse Phase is displayed, try the following: 
  – The speaker’s wiring (+ and –) may be inverted. Check the speaker 
connections.
  – Depending on the type of speakers and their installation conditions, Reverse 
Phase
 may be displayed even if the speakers are properly connected. If this 
happens, select GO NEXT and continue.
  – If the speaker is not pointed to the microphone (listening position) or when 
using speakers that affect the phase (dipole speakers, reflective speakers, etc.), 
it may not be possible to properly identify the polarity.
After using the Auto MCACC 
Setup, the speaker size 
setting is incorrect.
• There may have been some low frequency noise in the room from an air-
conditioner, motor, etc. Switch off all other appliances in the room and use 
Auto MCACC Setup again.
• Depending on a number of factors (room size, speaker placement, etc.) this 
may occur in some cases. Change the speaker setting manually in Speaker 
Setting
 on page 94, and use the ALL (Keep SP System) option for the Auto 
MCACC
 menu in Automatic MCACC (Expert) on page 77 if this is a recurring 
problem.
Can’t adjust the Fine Speaker 
Distance setting (page 82) 
properly.
• Check that the speakers are all in phase (make sure the positive (+) and 
negative () terminals are matched up properly).
The display shows KEY LOCK 
ON
 when you try to make 
settings.
• With the receiver in standby, press 
 STANDBY/ON while holding down 
SPEAKERS to disable the key lock.
Most recent settings have 
been erased.
• The power cord was disconnected from the wall while adjusting this setting.
• Settings are only stored if all the zones are turned off. Turn off all the zones 
before unplugging the power cord.
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