Panasonic DVCPRO AJ-DE77P Operating Instructions Manual page 7

Parts and Their Functions
LED Display Panel
AUTO OFF lamp
This lights when trouble has occurred in the unit's
operation.
Warning lamp
This lights when a warning item has occurred.
Channel condition lamps
One of these lamps lights in accordance with the
error rate status.
(Green — yellow — amber)
Green: This lights when the video and audio play
signal error rates are at acceptable
levels.
Yellow: This lights when either the video or audio
play signal error rate has deteriorated.
The playback picture remains normal
even while this lamp is lighted.
Amber: This lights when either the video or audio
play signal error rate is subject to
correction or interpolation.
LED display panel
(Yellow)
(Green)
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AUTO OFF CH CONDITION VTR
VTR lamp
This lights while the tape is traveling.
Cassette loaded lamp
This lights when a cassette has been loaded in
the unit.