2 Troubleshooting Procedures
Satellite P770/P775 Series Maintenance Manual
3
2.1 Troubleshooting Introduction
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. Display 7. Optical driver 13. JET 19. Sleep & play music 25. Battery
2. Keyboard
8. Wire LAN
14. USB 3.0
20. Wimax
26. LED
3. USB ports
9. Camera
15. Light sensor
21. LAN
4. MIC 10. Bluetooth 16. TV-Tuner &B-Case 22.HDD
5. Touch Pad 11. HDMI CEC 17. Sleep &Charge 23.CIR
6. Speaker/Headphone 12. 3D Sensor 18. Bridge Media slot 24.CRT
The Diagnostics Disk operations are described in Chapter 3. Detailed replacement
procedures are given in Chapter 4.
The following tools are necessary for implementing the troubleshooting procedures:
1. Phillips screwdriver (3.5 mm)
2. 2DD or 2HD formatted work disk for floppy disk drive testing
3. Multimeter
4. External monitor
5. USB compatible keyboard
6. Multimedia sound system with line-in and line-out ports
7. Headphones
8. USB test module and USB cable
9. Music CD
10. MIC module and MIC line
11. Audio loop back
12. TV tuner signal generator
13. USB3.0 HDD
14. Remote controller
15. HDMI
16. CRT
17. 3D Glasses
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