Marantz AV Pre Tuner AV7005 ユーザーズマニュアル

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Troubleshooting
If a problem should arise, first check the following:
1. Are the connections correct?
2. Is the set being operated as described in the user guide?
3. Are the other components operating properly?
If this unit does not operate properly, check the items listed in the table below. Should the problem persist, 
there may be a malfunction.
In this case, disconnect the power immediately and contact your store of purchase.
G
GeneralH
Symptom
Cause/Solution
Page
Power does not turn 
on.
• Check whether the power plug is correctly inserted into the power 
outlet.
7
Display is off.
• Set “Display” on the menu to something other than “OFF”.
86
Set does not operate 
properly.
• Reset the microprocessor.
115
G
VideoH
Symptom
Cause/Solution
Page
No picture appears.
• Check the TV connection.
• Set the TV input correctly.
7
7
G
AudioH
Symptom
Cause/Solution
Page
Audio is not output.
• Check the connections for all devices.
• Check the speaker connections.
• Check whether the audio device power is turned on.
• Adjust the master volume.
• Cancel the mute mode.
• Select a suitable input source.
• Select a suitable input mode.
• Disconnect the headphones. No sound is output from the speakers 
or the PRE OUT connectors when headphones are connected.
7, 16 – 24
6, 49 – 51
26, 62
26, 62
25, 62
71
98
No sound is 
produced from 
surround speaker.
• Check if the surround speakers are connected to the SURROUND 
terminals.
No sound is 
produced from 
surround back 
speaker.
• Set “Amp Assign” on the menu to “Normal”.
• Set  “Speaker  Config.”  –  “S.Back”  on  the  menu  to  something 
other than “None”.
• Set the surround mode to something other than “STEREO”.
78
78
44
No sound is 
produced from front 
height speaker.
• Set “Amp Assign” on the menu to “Normal”.
• Set “Speaker Config.” – “F.Height” on the menu to something 
other than “None”.
78
78
No sound is 
produced from front 
wide speaker.
• Set “Amp Assign” on the menu to “Normal”.
• Set  “Speaker  Config.”  –  “F.Wide”  on  the  menu  to  something 
other than “None”.
78
79
No sound is 
produced from 
subwoofer.
• Check the subwoofer connections.
• Turn on the subwoofer’s power.
• Set “Speaker Config.” – “Subwoofer” on the menu to “Yes”.
• If “Front” and “Center” for “Speaker Config.” are set to “Large”, 
and “Subwoofer Mode” is set to “LFE”, no sound may be output 
from the subwoofers, depending on the input signal or selected 
surround mode.
6, 49 – 51
7
78
78, 79
DTS sound is not 
output.
• Set “Decode Mode” on the menu to “Auto” or “DTS”.
71
Dolby TrueHD, DTS-
HD, Dolby Digital 
Plus audio is not 
output.
• Make HDMI connections.
16
1.AV7005U_ENG.indd   112
2010/08/23   18:33:27