Toshiba e-STUDIO2008A Service Manual page 355

5.12 [01 Control panel check mode]
The following items can be checked with this mode.
• Performance of hard keys (buttons on the control panel) performance
• LEDs blinking
• LCD display
• LCD back light blinking and brightness
• LCD touch sensor
• USB storage device connection
• Performance of digital keys (ten key option)
Notes:
To check the performance of the digital keys, connect the ten key option before starting this
mode.
5.12.1 Screen transition
01 Control panel check mode
・ Check whether LCD backlight is
turned on
・ Check whether LED is turned on
[Cancel]
・ Checking of the hard keys
・ Checking of the digital keys
[Back]
・ Checking of the LCD touch sensor
・ Checking of the USB storage device connection
5.12.2 Checking of the LCD back light and LEDs
By pressing [01 Control panel check mode], the LCD back light blinks in 3-second intervals. Moreover,
all LEDs are lit.
[Tips]
• By touching the screen or pressing a certain hard key, the screen is shifted to the hard key
confirmation screen.
• It is not possible to return to the HS Menu from [01 Control panel check mode]. Therefore, be
sure to shut down the equipment by pressing the [ON/OFF] button for a few seconds in the
screen after the confirmation in [01 Control panel check mode] is completed.
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Pressing for at least
0.5 seconds
Touch the screen or press the any hard key
Each icon
[HOME]
[NEXT]
Fig.5-24
5 - 37
Shut down
Checking of the LCD display
e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A
SELF-DIAGNOSTIC MODE
5