These troubleshooting tips are for the Pioneer Kuro PDP-6020FD, but they should apply for all Pioneer plasma televisions.
Check out the knowledge base and FAQs located in the resources to see if the answer to your problem is there.You may need to retune your TV from time to time to receive new channels or due to engineering work at transmitters.In most cases retuning is straightforward and should only take a few minutes.If you are having sound problems, make sure first that the TV isn't muted. Make sure the TV speakers are turned off, and make sure all audio cables are connected properly. If this happens, check your HDMI connections to make sure the cables are securely attached.Check the owner's manuals of your input devices to make sure they are HDCP compliant. Last, make sure the HDCP devices are properly handshaking over HDMI. Once everything is off, turn on the input device, then your receiver if you have one, then your TV.