58
Troubleshooting
—Continued
There’s no sound with a certain signal format?
• Check the input signal format setting. Depending on
the input source, you can select Auto, Multich, Ana-
log, DTS, or PCM (page 49).
• Check the digital audio output setting on the source
component. On some games consoles, such as those
that play DVDs, 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 40).
Can’t select the DTS-ES Discrete/Matrix or THX
Surround EX listening modes?
• These modes cannot be selected when no surround
back speakers are connected.
The volume won’t go up to 79?
• When the levels of all speakers have been calibrated
(page 28), the maximum volume setting may change.
Noise can be heard?
• 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.
The Late Night function doesn’t work?
• Make sure the source material is Dolby Digital
(page 42).
The DVD multichannel input doesn’t work?
• Check the DVD MULTI CH IN connections
(page 22).
• Set the audio input signal format to Multich (page 49).
About DTS signals
• When DTS playback finishes and the DTS bitstream
stops, the TX-LR552 remains in DTS listening mode
and the DTS indicator remains on. This is to prevent
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-LR552
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-LR552. This is usually because the DTS bitstream
has been processed (e.g., output level, sampling rate,
or frequency response changed) and the TX-LR552
doesn’t recognize it as a genuine DTS signal. In such
cases, you may hear noise.
• When playing DTS material, using the pause, fast for-
ward, or fast reverse function on your player may pro-
duce a short audible noise. This is not a malfunction.
There’s no picture?
• Make sure that all video connecting plugs are pushed
in all the way (page 18).
• Make sure that each video component is properly con-
nected.
• The TX-LR552 doesn’t convert between video for-
mats. It works as a video signal switcher. Composite
video input signals are output only by the composite
video output. S-Video input signals are output only by
the S-Video output. And component video input sig-
nals are output only by the component video outputs.
• On your TV, make sure that the video input to which
the TX-LR552 is connected is selected.
Reception is noisy, FM stereo reception is
noisy, or the FM STEREO indicator doesn’t
appear?
• Relocate your antenna.
• Move the TX-LR552 away from your TV or computer.
• Try using the AUTO FM mode (page 34).
• 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 none of the above improves reception, install an out-
door antenna.
The remote controller doesn’t work?
• Make sure that the batteries are installed with the cor-
rect polarity (page 9).
• Install new batteries. Don’t mix different types of bat-
teries or old and new batteries (page 9).
• Make sure that the remote controller is not too far
away from the TX-LR552, and that there’s no obstruc-
tion between the remote controller and the
TX-LR552’s remote control sensor (page 9).
• Make sure that the TX-LR552 is not subjected to
direct sunshine or inverter-type fluorescent lights.
Relocate if necessary.
• If the TX-LR552 is installed in a rack or cabinet with
colored-glass doors, the remote controller may not
work reliably when the doors are closed.
• Make sure you’ve selected the correct remote control-
ler mode (page 10).
• When using the remote controller to control other
manufacturers’ AV components, some buttons may
not work as expected.
• Make sure you’ve entered the correct remote control
code.
Video
Tuner
Remote Controller
TX-LR552̲En.book Page 58 Thursday, August 5, 2004 1:07 PM
