Toshiba 2000 user manual Screen display is improper, No character is entered when a key is pressed

Appendix A Q&A

Screen display is improper.

Q		A
Symptom	Check		Action
Nothing is displayed.	Is the main unit and CRT power		Turn on the power.
	on?		See "3.1.1 Turning On the
			Power"
	Is the CRT power cable		Turn off the power once and
	connected?		plug into an electrical outlet.
	Is the CRT signal cable		Connect the cable securely.
	connected properly?		See "2.5 Power Supply
			Connection"
Screen display is	Are the CRT brightness and		Turn the brightness and
distorted, size or position	contrast adjusted properly?		contrast knobs to adjust. Refer
is improper.			to the CRT operation manual for
			details.

No character is entered when a key is pressed.

Q		A
Symptom	Check		Action
Unable to enter from the	Is the keyboard cable plug		Connect the keyboard cable
keyboard.	connected to the mouse		plug to the keyboard connector.
	connector?
There is no response			Turn the power off and then
from any key.			back on after a while.
There is no response			Press the {Del} key while
when power on is			pressing the [Ctrl] key and [Alt]
repeated.			key.
The desired character	Are the CapsLock, NumLock,		Use the [Caps Lock] key and
cannot be entered.	and ScrollLock lamps lit		[Num Lock] key to obtain the
	properly?		desired state.

The mouse does not work

Q		A
Symptom	Check		Action
The mouse does not	Is the mouse connected to the		Connect the mouse to the
Respond	keyboard connector?		mouse connector.

Operating system does not start.

Q		A
Symptom	Check		Action
An error message	Did you turn the power off and		? Wait at least 5 seconds after
appears during startup.	then back on immediately		turning off the power before
			turning it back on.
	Is the BIOS set correctly?		Check "6.1 Setting the BIOS"
An error message			Refer to your application
appears when using an			program's operation manual.
application program.

46 Computer module C2PU37 User’s Manual