Toshiba T110, ProT1!0 manual LED Troubleshooting, Procedure 1 Each function Execution Check

Chapter 2 Troubleshooting Procedures

2.20 LED Troubleshooting

These are 9 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
5.	Cardreader	6.W-Lan	7.3G	8.Arrow Lock	9.Number Lock

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

Procedure 1 Each function Execution 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.

Procedure 2 Connect Check and Replacement Check

LED light is combined with Touchpad/B which is connected to system board by a TP-MB cable. This cable may be disconnected from system board. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures.

Check 1 Make sure TP-MB is correctly and firmly inserted. If the problem still occurs, perform Check 2.

Check 2 Touchpad/B may be faulty. Replace it with a new one. If the problem still occurs, perform Check 3.

Check 3 The system board may be faulty. Replace it with a new one following the instruction in Chapter 4.

Satellite T110 / Satellite Pro T110 / PORTEGE T110 Maintenance Manual (960-Q08)		42
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