Panasonic DMP-BD Series Service Manual page 15

Mode name
Laser Used Time Check laser used time (hours) of drive.
Indication
Item
Description
FL display
l(****) is the used time display in
hour.
lLaser used time of BD/ DVD/ CD in
Playback/Recording mode
counted.
15
Key operation
(Remote controller key)
Press [4] [1] in service mode.
is