Sanyo DS31520 Owner's Manual page 19

Is the program
you are watching
closed-captioned?
Did the black box disappear or disappear briefly then reappear?
Change Channels.
Press the INPUT
key.
Press the RESET
key twice
(personalized
settings will be
reset to factory
defaults).
Press the RESET
Did the problem go away?
key twice
(personalized
settings will be
reset to factory
defaults).
Yes. Set captioning on. Press the Caption key then press the 0 key to highlight Caption1.
No. Tune to a channel that is broadcasting a closed-captioned program.
Yes. TV station is broadcasting a Caption text signal without any textual data.
Press the RESET key twice (customized settings will be reset to factory defaults).
To retain customized settings, just turn captioning off (see page 16).
Did the Blue Screen disappear?
Yes. The TV was in the Video mode. (A Blue Screen will appear when the Video mode
is selected and there is no video signal being detected.) Your AV equipment may
be turned off or unplugged.
Do you recognize the menu words now?
Yes. A language other than English was selected.
Yes. It may have been the channel scan memory or V-Guide settings.