Hdmi Troubleshooting; Procedure 1 Connector Check And Replacement Check; Procedure 2 External Monitor Check; Procedure 1 - Toshiba Satellite L640 Maintenance Manual

Chapter 2 Troubleshooting Procedures

2.13 HDMI Troubleshooting

To check if the computer's HDMI is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: External HDMI Monitor Check
Procedure 2: Connector and Cable Check
Procedure 3: Replacement Check

Procedure 1

Connector Check and Replacement Check
The HDMI port is connected to system board. If HDMI malfunctions, its connection is
defective and system board may be faulty.
Check 1 Make sure HDMI cable is firmly connected to the connector CN13 (system board).
If the problem still occurs, perform Procedure 2.
Procedur e 2 External Monitor Check
Connect an external monitor to the computer's HDMI port, and then boot the computer. The
computer a utomatically
If the external monitor works correctly, the internal LCD may be faulty. Go to Procedure 3.
If the external monitor appears to have the same problem as the internal monitor, system
board m ay be faulty. Go to Procedure 2.
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
detects the external monitor.