Toshiba TECRA A2 User Manual

User’s Manual

9-19

Troubleshooting

Sound system

Refer also to documentation for your audio devices.

Monitor

Refer also to Chapter 8, 

, and to your monitor’s 

documentation.

The computer will not 

start and the following 

sequence of beeps 

sounds:Long, short, 

no sound, long, short, 

short, ...

Unsupported memory modules (with SPD) are 

installed in both Slot A and B.

The computer will not 

start and no beeps are 

heard.

One or more unsupported memory modules 

(without SPD) are installed in the slots.

The computer starts 

but does not detect 

memory.

Supported memory is installed in one of the 

slots but unsupported memory (without SPD) in 

the other slot. Note that the unsupported 

memory does not have an adverse effect on the 

computer.

No sound is heard

Adjust the volume control dial.

Check the software volume settings.

Make sure the headphone connection is secure. 

If problems persist, contact your dealer.

Monitor does not turn 

on 

Make sure that the external monitor’s power 

switch is on. Confirm that the external monitor’s 

power cable is plugged into a working power 

outlet.

No display

Try adjusting the contrast and brightness controls 

on the external monitor.

Press hot keys Fn + F5 to change the display 

priority and make sure it is not set for the internal 

display.

Display error occurs

Check that the cable connecting the external 

monitor to the computer is attached firmly.
If problems persist, contact your dealer.