Troubleshooting - Toshiba TECRA S4 Maintenance Manual

2.1 Troubleshooting

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2.1 Troubleshooting
Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. The FRUs covered are:
1. Power Supply
2. System Board
3. USB Floppy Disk Drive 8. Modem
4. Hard Disk Drive
5. Keyboard/Touch pad
The Diagnostics Disk operations are described in Chapter 3. Detailed Replacement
Procedures are given in Chapter 4, Replacement Procedures.
The following tools are necessary for implementing the troubleshooting procedures:
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. Toshiba MS-DOS system FD
2. LED board
3. Headphone (for Sound troubleshooting)
4. An external microphone(for Sound troubleshooting)
5. A SD card (for SD card slot troubleshooting)
TECRA S3 Maintenance Manual (960-532)
6. Display
7. Optical Drive
9. LAN
10. Sound
2 Troubleshooting Procedures
11. SD Card Slot
12. Wireless LAN
13. Bluetooth
14. PCI ExpressCard
15. Fingerprint Sensor
[CONFIDENTIAL] 2-1