Dell Vostro 3401, Service Manual

Page: 13 / 87

●
System LED's illuminates upon pressing the power button.
● All the available LED's (Keyboard backlit/ Keyboard caps lock LED/ Battery Charge LED) illuminates and displays specified
behavior.
● The auditory tone is Off by default. It can be enabled in the BIOS setup.
● Safeguards do not time out if the device gets hung during the logon process.
●
Dell logo: Turns on within 2 secs after pressing the power button.
● Full boot: Within 22 secs after pressing the power button.
● Below is the example timelines:
Power button with fingerprint reader will have no LED and will leverage the available LED's in the system to provide indication of
the system status
● Power Adapter LED:
○ The LED on Power adapter connector illuminates white when power is supplied from electrical outlet.
● Battery Indicator LED:
○ If the computer is connected to an electrical outlet, the battery light operates as follows:
1. Solid white -the battery is charging. When the charge is complete the LED turns off.
○ If the computer is running on a battery, the battery light operates as follows:
1. Off -the battery is adequately charged (or the computer is turned off).
2. Solid amber -the battery charge is critically low. A low battery state is approximately 30 minutes or less of battery life
remaining.
● Camera LED
○
White LED activates when camera is on.
● Mic Mute LED:
○ When activated (muted), the mic mute LED on the F4 Key should illuminate WHITE.
Technology and components 13