dynabook TECRA A40-J Series Maintenance Manual

Maintenance Manual (960-945) 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.

dynabook TECRA A40-J Series Specifications

General

Operating System	Windows 10 Pro
Battery Life	Up to 10 hours
Graphics	Intel Iris Xe Graphics
Bluetooth	Bluetooth 5.1
Processor	Intel Core i5-1135G7 or i7-1165G7
Display	14.0" FHD (1920 x 1080) Anti-Glare
RAM	8GB/16GB DDR4
Storage	256GB/512GB SSD
Wireless	Intel Wi-Fi 6 AX201
Ports	2 x USB 3.2 Type-A, 1 x USB 3.2 Type-C, HDMI, Ethernet, MicroSD card slot
Security	Fingerprint Reader, TPM 2.0
Webcam	HD Webcam