NEC ND-3550A - Part Identification; Front View Description

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Part Names and Functions
Front View
1 BUSY Indicator
This indicator lights green while data is being read and written.
2 Tray Panel
This panel prevents dust from entering the DVD R/RW drive.
The disc tray will be ejected when the Load/Eject button is pushed.
3 Emergency Eject Hole
Use to remove the disc from the DVD R/RW drive if the electrical eject
is disabled by software or if power failure occurs. (See page 15
“Emergency Eject” for details.)
4 Load/Eject
This button is pressed to eject or retract the disc tray when the power is on.
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