Hi there and welcome to Just Answer. Thanks for asking your question. I'm sorry to hear about your TV.
Can you tell me what you have connected to the TV and with what type of connections?
Direct TV box HDMI conection to HDMI1 port
Panasonic DVD suround system HDMI2 port
Panasonic Blu-Ray HDMI3 port
Check that you haven't accidentally turned off the internal speakers. It will be in the Audio menu.
Check that and let me know. I will be here if you need more help, info or have a follow up comment or question.
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