2 Troubleshooting Procedures
dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual(960-931) [CONFIDENTIAL] 2-47
2.20 USB Type-C adapter Troubleshooting
On some models, the USB Type-C adapter (USB-C to VGA Adapter) is bundled.
To check if each function of USB Type-C adapter work properly or not, follow the steps
below.
2.20.1 RGB port
To check if RGB port is malfunctioning or not, follow the troubleshooting procedures below
as instructed.
Procedure 1: Check on the external display
Procedure 2: Connector Check and Replacement Check
Procedure 1 Check on the external display
Connect an external display to the RGB port on the USB Type-C adapter. If the RGB port
works, a desktop screen of Windows will appear on the external display.
Connecting to the computer
1. Connect the USB Type-C adapter to the USB type-C connector on the computer.
2. Plug one end of the cable into the RGB port of the external display.
3. Turn on the power of the external display.
4. Plug the other end of the cable into the RGB port on the USB Type-C adapter.
Switching the image output from computer’s screen to the external
display
When you press F5, the screen for selecting the device to show image will appear.
Select [Second screen only]. Then check if the desktop image is shown on the TV.
If any problem occurs on sound and image output, perform Procedure 2.
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