Toshiba TECRA A9 Series Maintenance Manual

2 Troubleshooting Procedures 2.8 Display Troubleshooting
2.8 Display Troubleshooting
This section describes how to determine if the computer’s display is functioning properly.
Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1: External Monitor Check
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector Check and Cable Check
Procedure 4: Replacement Check
Procedure 1 External Monitor Check
Connect an external monitor and tun on the computer. If there is no problem on it, the
internal LCD may be defective. Go to Procedure 3. If there is any problem on the external
monitor, the system board may be defective. Go to Procedure 2.
Procedure 2 Diagnostic Test Program Execution Check
The Display Test program is stored on the computer’s Diagnostics disk. This program checks
the display controller on the system board. Insert the Diagnostics disk in the computer’s
floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and
Diagnostics for details. If an error is detected, go to Procedure 3.
Procedure 3 Connector Check and Cable Check
Check 1 The LCD, FL, FL Inverter Board and System Board are connected by the HV
cable and LCD/FL cable as shown bellow. Check the connections. The
connectors may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures.
2-42 [CONFIDENTIAL] TECRA A9(S5/P5/S200) Maintenance Manual (960-633)

Toshiba TECRA A9 Series Specifications

General

Processor	Intel Core 2 Duo
Display	15.4-inch
Display Resolution	1280 x 800 pixels
RAM	Up to 4 GB
Operating System	Windows Vista
Optical Drive	DVD-RW
Wireless	802.11a/g/n
Ports	USB 2.0, VGA, Ethernet, Headphone