ONKYO TX-NR901 Instruction Manual

 

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• Check the input signal format setting. Depending on 

the playback source, you can select Auto, Multich, 
Analog, DTS, or PCM (page 53).

• Check the digital audio output setting on the con-

nected device. On some games consoles, such as those 
that support DVD, the default setting is off.

• With some DVD-Video discs, you need to select an 

audio output format from a menu.

• Depending on the input signal, some listening modes 

cannot be selected (page 58).

 

• These modes cannot be selected when no surround 

back speakers are connected, or Zone 2 is being used.

 

• If no surround back speakers are connected, or Zone 2 

is being used, 6.1 and 7.1 playback is not possible.

 

• When the levels of all speakers have been calibrated 

(page 44), the maximum volume setting may change.

 

• Using cable ties to bundle audio cables with power 

cords, speaker cables, and so on may degrade the 
audio performance, so don’t do it.

• An audio cable may be picking up interference. Try 

repositioning your cables.

 

• Make sure the source material is Dolby Digital 

(page 62).

 

• Check the MULTI CH INPUT connections (page 29).
• Make sure that the multichannel input is assigned to 

the correct input source (page 63).

• Set the audio input signal format to Multich (page 53).

 

• When DTS program material ends and the DTS bit-

stream stops, the TX-NR901 remains in DTS listening 
mode and the DTS indicator remains on. This is to pre-
vent noise when you use the pause, fast forward, or 
fast reverse function on your player. If you switch your 
player from DTS to PCM, because the TX-NR901 
does not switch formats immediately, you may not 
hear any sound, in which case you should stop your 
player for about three seconds, and then resume play-
back.

• With some CD and LD players, you won’t be able to 

playback DTS material properly even though your 
player is connected to a digital input on the 
TX-NR901. This is usually because the DTS bitstream 
has been processed (e.g., output level, sampling rate, 
or frequency response changed) and the TX-NR901 
doesn’t recognize it as a genuine DTS signal. In such 
cases, you may hear noise.

• When playing DTS program material, using the pause, 

fast forward, or fast reverse function on your player 
may produce a short audible noise. This is not a mal-
function.

 

• Make sure that all video connecting plugs are pushed 

in all the way (page 26).

• Make sure that each video component is properly con-

nected.

• If your video component is connected to a component 

video input, your TV must be connected to the compo-
nent video output, unless the Component Video setting 
is set to VIDEO (page 47).

• On your TV, make sure that the video input to which 

the TX-NR901 is connected is selected.

• While the Pure Audio listening mode is selected, the 

video circuits are turned off and the TX-NR901 out-
puts no video signals.

 

• Make sure that the video settings are correct 

(page 46).

• Check the Display Position and OSD Position settings 

(page 73).

• On your TV, make sure that the video input to which 

the TX-NR901 is connected is selected.

 

• Relocate your antenna.
• Move the TX-NR901 away from your TV or com-

puter.

• Try using the AUTO FM mode (page 54).
• When listening to an AM station, operating the remote 

controller may cause noise.

• Passing cars and airplanes can cause interference.
• Concrete walls weaken radio signals.
• If nothing improves the reception, install an outdoor 

antenna.

 

• Make sure that the batteries are installed with the cor-

rect polarity (page 8).

• Install new batteries. Don’t mix different types of bat-

teries or old and new batteries (page 8).

• Make sure that the remote controller is not too far 

away from the TX-NR901, and that there’s no obstruc-
tion between the remote controller and the 
TX-NR901’s remote control sensor (page 8).

TX-NR901_En.book Page 100 Wednesday, October 1, 2003 9:44 AM