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RQT8720
35
Troubleshooting guide
Sound abnormal or improper Page
Menus
Picture abnormal or unviewable
Progressive video
Listening to the radio
Television operation
(Continued on next page)
Sound is distorted. ≥Noise may occur when playing WMA.
≥When using the HDMI output, audio may not be output from other terminals.
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Effects do not work. ≥Some audio effects do not work or have less effect with some discs. —
Humming is heard during play. ≥An AC power supply cord or fluorescent light is near the main unit. Keep other appliances and
cables away from the main unit.
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No sound ≥There may be a slight pause in sound when you change the play speed.
≥Audio may not be heard when more than 4 devices are connected with HDMI cables. Reduce the
number of connected devices.
≥When using the HDMI connection, ensure that “Audio Output” in the “HDMI” tab is set to “On”.
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The Setup menu cannot be
accessed.
≥Select “DVD/CD” as the source.
≥Cancel Program and Random play.
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The picture on the television is
not displayed correctly or
disappears.
≥Ensure that the unit is connected directly to the television, and is not connected through a video
cassette recorder.
≥Mobile telephone chargers can cause some disturbance.
≥If you are using an indoor television antenna, change to an outdoor antenna.
≥The television antenna wire is too close to the unit. Move it away from the unit.
≥Picture may not be seen when more than 4 devices are connected with HDMI cables. Reduce the
number of connected devices.
≥When using HDMI output, the video signal is progressive. Use other video connections if your
television is not compatible with progressive video.
≥If the picture is distorted or not displayed when using HDMI output, press and hold [CANCEL] until
the picture is displayed correctly. (The output will return to “480p”.)
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Picture size does not fit the
screen.
≥Change “TV Aspect” in the “Video” tab.
≥Use the television to change the aspect. If your television does not have that function, change “4:3
Aspect” in Display Menu.
≥Change the Zoom setting.
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Menu is not displayed correctly. ≥Restore the zoom ratio to “a1.00”.
≥Set “Subtitle Position” in Display Menu to “0”.
≥Set “4:3 Aspect” in Display Menu to “Normal”.
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Auto zoom function does not work
well.
≥Turn off television’s zoom function.
≥Use the other preset aspect ratios or manual adjustment.
≥Zoom function may not work well, especially in dark scenes and may not work depending on the
type of disc.
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There is ghosting when
progressive or HDMI output is on.
≥This problem is caused by the editing method or material used on DVD-Video, but should be
corrected if you use interlaced output. Set “Video Output Mode” in Picture Menu to “480i”.
(Alternatively, press and hold [CANCEL] to switch to “480i”.)
≥Disable the HDMI AV OUT connection and use other video connections. Make the settings in the
following order:
1 Set “Video Output” in the “HDMI” tab to “Off”.
2 Set “Video Output Mode” in Picture Menu to “480i”. (Alternatively, press and hold [CANCEL] to
switch to “480i”.)
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Pictures not in progressive
output.
≥Select “480p” in “Video Output Mode” in Picture Menu.
≥The unit’s VIDEO OUT or S-VIDEO OUT terminal outputs the interlaced signal even if “PRG” is
displayed.
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11
Closed captions not displayed. ≥When progressive or HDMI output is on, closed captions will not be displayed. —
Distorted sound or noise is heard.
“ST” flickers or does not light.
≥Adjust the position of the FM or AM antenna.
≥Use an outdoor antenna.
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A beat sound is heard. ≥Turn the television off or move it away from the unit. —
A low hum is heard during AM
broadcasts.
≥Separate the antenna from other cables. —
Cannot operate the television. ≥Check the remote control code for the television manufacturer. 32
HT744En.book Page 35 Thursday, March 23, 2006 1:30 PM