dynabook TECRA A40-J Series Maintenance Manual

Maintenance Manual (960-945) 2-27
Troubleshooting Procedures
Figure 2-6 Connecting the HDMI out port
2.16.2 Procedure 2 Connector Check and Replacement Check
The connection of cables, boards and module may be defective.
Otherwise, they may be faulty. Disassemble the computer following the
steps described in Chapter 4 and perform the following checks:
Check 1
Make sure HDMI TV is firmly connected to the HDMI out port on
the system board. If the problem still occurs, perform Check 2.
Check 2
It checks whether there are any abnormalities in a setup of
HDMI TV, and returns to Procedure 1. In addition, an HDMI
setup of television should check "the instructions manual of
attachment on HDMI TV." If the problem still exists, perform
Check 3.
Check 3
HDMI cable may be damaged. Replace it with a new one. If the
problem still exists, perform Check 4.
Check 4
HDMI TV may be damaged. Replace it with a new one and
check the operation. If the problem still exists, perform Check 5.
Check 5
System board may be damaged. Replace it with a new one
following the instructions in Chapter 4, Replacement
Procedures.
2.17 LAN Troubleshooting
To check if the computer’s LAN is malfunctioning or not, follow the
troubleshooting procedures below as instructed.
1. HDMI out port 2. HDMI cable
1
2

dynabook TECRA A40-J Series Specifications

General

Brand	dynabook
Model	TECRA A40-J Series
Category	Laptop
Language	English