Toshiba Satellite L640 User Manual

Chapter 2 Troubleshooting Procedures
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
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Procedure 4 Replacement Check
The power is supplied to the system board by the AC adapter. If either the AC adapter or the
system board was damaged, perform the following Checks.
To disasse ollow the steps described in Chapter 4, Replacement
Procedures.
When AC adapter is connected;
Check 1 AC adapter may be faulty. Replace the AC adapter with a new one. If the problem
still occurs, perform Check 2.
Check 2 System board may be faulty. Replace the system board with a new one.
When AC adapter is not connected ;
(When driving with battery pack)
Check 1 Battery pack may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 2.
Check 2 System board may be faulty. Replace it with a new one.
mble the computer, f

Toshiba Satellite L640 Specifications

General

Optical Drive	DVD SuperMulti Drive
Wireless	802.11b/g/n
Webcam	Integrated Webcam
Processor	Intel Core i3/i5
RAM	Up to 8GB DDR3
Storage	320GB HDD
Display	14-inch HD
Graphics	Intel HD Graphics
Operating System	Windows 7 Home Premium
LAN	10/100 Ethernet
Battery	6-cell Lithium Ion
Ports	HDMI, VGA, RJ-45, Microphone input, Headphone output