L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash either an error code [2,8] or an error code [2,7].
NOTE: If L-BIST fails, LCD-BIST cannot function as no power will be supplied to the LCD.
How to invoke L-BIST Test:
Press the power button to start the system.
If the system does not start up normally, look at the battery status LED:
If the battery status LED flashes an error code [2,7], the display cable may not be connected properly.
If the battery status LED flashes an error code [2,8], there is a failure on the LCD power rail of the system board, hence there is no power supplied to the LCD.
For cases, when a [2,7] error code is shown, check to see if the display cable is properly connected.
For cases when a [2,8] error code is shown, replace the system board.
Det finns inga tillgängliga data för ämnet
Ange betyg (1–5 stjärnor).
Ange betyg (1–5 stjärnor).
Ange betyg (1–5 stjärnor).
Ange om artikeln var användbar eller inte.
Kommentarer får inte innehålla följande specialtecken: <>()\