Panasonic SC-HT900 Operating Instructions Manual page 41

Sound
No sound.
Distorted sound.
Humming heard during play.
Picture
Picture distorted.
No picture.
The picture shown on the
television is not normal.
(The sides of the picture are cut
off, the picture is stretched
horizontally, or black bands
appear at the top and bottom of
the screen.)
There is ghosting when
progressive output is on.
Picture quality is poor.
The picture on the television
disappears or stripes appear on
the screen.
Menus not displayed correctly.
Listening to the radio
Noise is heard.
"ST" flickers or doesn't light.
Sound is distorted.
A beat sound is heard.
A low hum is heard during AM
broadcasts.
≥Check the connections.
≥Turn the volume up.
≥Turn muting off.
≥Switch off the unit, determine and correct the cause, then switch the unit on.
Causes include:
–Shorting (bare wires touching) of positive and negative speaker wires.
–Using speakers with an impedance lower than that rated for this unit.
–Straining of the speakers through excessive volume or power.
–Using the unit in a hot environment without proper ventilation.
≥An AC power supply cord or fluorescent light is near the subwoofer. Keep other appliances and
cords away from the subwoofer.
≥Some distortion is normal during SEARCH.
≥Check the connection.
≥Make sure the television is on.
≥Ensure the television's video input setting (e.g., VIDEO 1) is correct.
≥Go to Video in the SETUP menus, and change "TV Aspect" to suit your television.
≥Use the television to change the aspect to the correct one.
If your television cannot change the aspect when input is progressive, try changing 4:3
Aspect with the on-screen menu icons.
≥Ensure that the unit is connected directly to the television, and is not connected through a video
cassette recorder.
≥Connect to the component video (480P) input terminals on a television compatible with this
unit's copy guard system. You cannot view progressive video if your television is not compatible.
≥Change the size with the variable zoom function.
≥The images on PAL system DVD-Audio are compressed for display. They may also appear
vertically stretched.
≥Press [PROGRESSIVE] so the indicator goes out. This problem is caused by the editing
method or material used on DVD-Video, but should be corrected if you use interlace output.
≥Check the settings in the On-Screen Menu Icons' Picture Menu.
≥Mobile telephone chargers can cause some disturbance.
≥The location and orientation of the antenna are incorrect. If you are using an indoor antenna,
change to an outdoor antenna.
≥The television antenna wire is too close to the unit. Separate the antenna wire of the television
from the unit.
≥Change the zoom ratio to "k1.00".
≥With the on-screen icon menus, change "Subtitle Position" to "0" or change "4:3 Aspect" to
"Normal".
≥Adjust the position of the FM or AM antenna.
≥Use an outdoor antenna.
≥Turn the television off or separate it from the unit.
≥Separate the antenna from other cables and cords.
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