Panasonic CT-24SL14J Service Manual page 184

7. Press POWER on the remote control to display the service
adjustment modes menu, select adjustment by pressing the
volume right/left buttons and channel up/down buttons on the
remote and ACTION to enter the adjustment.
Exiting the service mode:
This TV goes out from service mode when it is unplugged or turned OFF. To exit the service
mode, turn the TV OFF from or unplug the TV from A.C.
Other method
Press ACTION and POWER on the receiver simultaneously for at least 2 seconds.
The receiver momentarily shuts off; then comes back on tuned to channel 3 with a preset level of
sound.
Any programmed channels, channels caption data and some others user defined settings will be
erased when exited by pressing ACTION and POWER on receiver.
IMPORTANT NOTE
Always check that the TV exits the service mode.
To confirm colors
When in service mode (red "CHK" is displayed) press RECALL on the remote control to enter the
purity field check mode
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