Toshiba L600D Benutzerhandbuch

These are 6 LED lights at Top assy. From left to right, the Open statuses of them represent 
functions as below.  

1. AC-IN          2. Power          3. Battery          4.HDD/SSD 

5. Card Reader    6.W-Lan 

To check if the computer’s LED is malfunctioning or not, follow the troubleshooting 
procedures below as instructed. 

Procedure 1:   Each function Execution Check 

Procedure 2:   Connect Check and Replacement Check 

In this procedure, you must first make sure all components except LED are working right. 
Then you can execute the related function to check if the corresponding LED is on or not. If 
not, please go to Procedure2. 

LED light is built on system board; the system board may be faulty. Disassemble the 
computer following the steps described in Chapter 4, Replacement Procedures. 

Check 1 

The system board may be faulty. Replace it with a new one following the 
instruction in Chapter 4.