Maintenance Manual (960-946) 2-1
Chapter 2
Troubleshooting Procedures
2.1 Troubleshooting
This chapter 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 here are as
follows:
1. Power supply
2. System Board
3. USB
4. M.2 SSD
5. Keyboard
6. Touch Pad (Click Pad)
7. Display
8. Wireless LAN + Bluetooth
9. 3G/LTE
10. Sound
11. Memory media (SD Card) slot
12. Fingerprint sensor
13. Web camera
14. HDMI
15. LAN
16. USB Type-C adapter
* Please note that some units are installed only on some models.
The Test Program operations are described in Chapter 3, Tests and
Diagnostics. Detailed Replacement Procedures are described in Chapter
4.
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