Troubleshooting - Toshiba PORTEGE A200 series Maintenance Manual

2.1 Troubleshooting

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2.1 Troubleshooting
Chapter 2 describes how to determine which Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. (The "FRU" means the replaceable unit in the field.)
The FRUs covered are:
1. Power supply
2. System Board
3. USB FDD
4. HDD
5. Optical Drive
6. Display
7. Keyboard
The Detailed replacement procedures are given in Chapter 4. Test Program operations are
described in Chapter 3.
The following tools are necessary for implementing the Diagnostics procedures:
For tools required for executing the Test Program, refer to the Chapter3. For tools required for
disassembling/assembling, refer to the Chapter 4.
1. A set of tools for debugging port test (test cable, test board, RS-232C cross cable,
display, D port FD)
2. A PC with a serial port (for displaying debug port test result)
3. Toshiba MS-DOS system FD
4. An external CRT display(for Display trouble shooting)
5. A SD card(for SD card slot trouble shooting)
6. An external microphone(for Sound trouble shooting)
7. Headphone(for Sound trouble shooting)
PORTEGE A200 Maintenance Manual (960-499)
2 Troubleshooting Procedures
8. Touch pad
9. SD card slot
10. Modem
11. LAN
12. Sound
13. Wireless LAN
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