45
Getting Started Connections
Basic Operations Advanced Operations TroubleshootingTroubleshootingInformation Specifi cations Index
ENGLISH
Explanation terms
If a problem occurs fi rst check the following:
1.  Are the connections correct?
2.  Is the set being operated as described in the owner’s manual?
3.  Are the other components operating properly?
If this unit does not operate properly, check the items listed in the table below. If the problem persists, 
there may be a malfunction.
In this case, disconnect the power immediately and contact your retail outlet.
GGeneralH
Symptom Cause Countermeasure Page
Set does not 
operate properly.
• External noise or interference is 
causing the set to malfunction.
• Reset the microprocessor. 35
Display not lit 
and sound not 
produced when 
power switched 
to on.
• Power cord not plugged in 
securely.
• Check the connections on 
the set's rear panel and the 
connection of the power plug to 
the power outlet.
10
Display lit but 
sound not
produced.
• Wrong input source selected.
• Volume control set to minimum.
• MUTING is on.
• Select the appropriate input 
source.
• Turn volume up to suitable level.
• Switch off MUTING.
12
12
12
Display is off. • The Dimmer setting is set to 
“OFF”.
• Set to something other than 
“OFF”.
13
Power turns off 
suddenly and 
POWER indicator 
fl ashes red.
(Flashes at 0.5 
second intervals)
• Core wires of two speakers 
are touching each other or a 
core wire is sticking out of 
the terminal and touching the 
set’s rear panel, activating the 
protection circuit.
• First unplug the power cord, 
then twist the core wires tightly 
or terminate the speaker cables, 
then reconnect.
5
Power turns off 
suddenly and 
POWER indicator 
fl ashes red.
(Flashes at 0.25 
second intervals)
• Set is damaged. • Turn off the power and contact 
a DENON service center.
–
Power turns off 
suddenly and 
POWER indicator 
fl ashes red.
(Flashes at 2 
second intervals)
• Protection circuit activated due 
to a rise in internal temperature.
• Turn off the power, wait for the 
set to fully cool down, then turn 
the power back on.
• Place the set in a well-ventilated 
location.
6
IV
Troubleshooting
 WPA (Wi-Fi Protected Access)
This is a security standard established by the Wi-Fi 
Alliance. In addition to the conventional SSID 
(network name) and WEP key (network key), it also 
uses a user identifi cation function and encrypting 
protocol for stronger security.
 WPA2 (Wi-Fi Protected Access 2)
This is a new version of the WPA established by the 
Wi-Fi Alliance, compatible with more secure AES 
encryption.
 WPA-PSK/WPA2-PSK (Pre-shared Key)
This is a simple authentication system for mutual 
authentication when a preset character string 
matches on the wireless LAN access point and 
client.
 WPS (Wi-Fi Protected Setup)
This is a standard drawn up by the Wi-Fi Alliance 
to ease the task of setting up wireless LAN 
connections and confi guring security.
There are two methods: push-button and PIN (Personal 
Identifi cation Number) code.
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