Panasonic TC-60AS640U - Manual (Page 152)

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Picture - Snowy / none
Why is there no picture or just a blue, black or snowy screen being
displayed?
● Press MENU and select Help . Then select TV Self-test . If the test picture
displays correctly, then the problem is with the external device (ex. Cable
box, DVD player, etc.) or its connection to the TV.
MENU Menu > Help > TV Self-test
● Check if the power cord is plugged in and the TV is turned on (front red
LED light should be on; not blinking)
● Press the INPUT button on the remote to select the correct input source.
INPUT Input select
●
Ensure all connections are correct and secure. Especially check for
Component and VIDEO connection since these terminals are shared.
●
When using an external video source, such as a Cable/Satellite box or
DVD player, check that the device is on and functioning correctly.
● Press MENU on the TV’s remote control. If the menu is displayed, then the
TV is working; recheck above steps.
Why is the picture snowy when ANTENNA/Cable setup is selected?
● When using a cable service (without a box), check that all connections are
secure.
● When using a cable or satellite box, change the connection (wiring) to
Composite, Component or HDMI.
● If you’re using an antenna, then check that connections are secure.
Change the position or direction of the antenna and check the Signal
meter .
MENU Menu > Setup > ANTENNA/Cable setup > Signal meter