9 Troubleshooting
Warning
•• Risk of electric shock. Never remove the casing of the product.
To keep the warranty valid, never try to repair the product yourself.
If you have problems using this product, check the following points before you request service. If you still have a problem, get support at www. philips.com/support.
Main unit
The buttons on the home theater do not work.
•Disconnect the home theater from the power supply for a few minutes, then reconnect.
Picture
No picture.
•Make sure that the TV is switched to the correct source for the home theater.
No picture on a TV connected through HDMI.
•Make sure that the HDMI cable is not faulty. If it is faulty, replace it with a new cable.
•Press 
(Home) and then 731 on the remote control to restore the default picture resolution.
•Change the HDMI video setting, or wait for 10 seconds for auto recovery (see 'Picture resolution' on page 23).
Disc does not play
•Make sure that the disc contains high- definition video.
•Make sure that the TV supports high- definition video.
•Use an HDMI cable to connect to the TV.
Sound
No sound from home theater speakers.
•Connect the audio cable from your home theater to your TV or other devices.
You do not need a separate audio connection when the home theater and TV are connected through an HDMI ARC connection.
•Set up the audio for the connected device (see 'Set up audio for connected devices' on page 13).
•Reset your home theater to its factory settings (see 'Apply factory settings' on page 26), then switch it off and switch on again.
•On your home theater, press SOURCE repeatedly to select the correct audio input.
Distorted sound or echo.
•If you play audio from the TV through the home theater, make sure that the TV is muted.
Audio and video are not synchronized.
•1) Press 
SOUND SETTINGS. 2) Press the Navigation buttons (left/right) to select AUD SYNC, and then press OK. 3) Press the Navigation buttons (up/down) to synchronize the audio with the video.
Play
Cannot play a disc.
•Clean the disc.
•Make sure that the home theater supports the type of disc (see 'Media formats' on page 29).
•Make sure that the home theater supports the region code of the disc (see 'Region codes' on page 29).
•If the disc is a DVD±RW or DVD±R disc, make sure that it is finalized.
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