Panasonic DMP-BD90 Owner's Manual page 24

No subtitles.
When progressive output is on, closed
captions/subtitles cannot be displayed.
The subtitles overlap closed captions
recorded on discs.
Turn off the subtitles or the closed captions.
( 16, 20)
Closed captions are not displayed.
Confirm that the source content supports CC.
Confirm the "Closed Caption Display" is set to
"On". ( 17, 20)
Change the "Closed Caption Type" setting.
( 17, 20)
Confirm the "Analog CC" or "Digital CC" is set
properly ( 17, 20).
A black band is displayed around the edge of
the screen.
The aspect ratio of the screen is abnormal.
Confirm the "TV Aspect" is set properly.
( 21)
Adjust the aspect setting on the TV.
Audio
Cannot switch audio.
The audio cannot switch, if "Digital Audio
Output" is set to "Bitstream". Set "Digital
Audio Output" to "PCM". (
Cannot hear the desired audio type.
Check the connections and the "Digital Audio
Output" settings. (
19)
10, 19)
Reference
Playback
Disc cannot be played.
The disc is dirty. (
The disc is not finalized. (
Still pictures (JPEG) do not play back
normally.
The images that were edited on the PC, such
as Progressive JPEG, etc., may not be played
back.
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5)
7)