Panasonic TX-47AS800T Ehelp page 247

Information
Using Help menu
1. Display the menu with MENU.
2. Select Help with
3. Select TV Self Test
and press OK to access.
TV Self Test
Makes a diagnosis of picture or sound problems.
Follow the on-screen instructions.
System Information
Displays the system information of this TV.
Device Information
Displays the device information of this TV.
/ and press OK to access.
/ System Information
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/ Device Information with /