Toshiba T2100 Series Maintenance Manual page 70

Subtest 10 LED/DAC Pallet
This subtest checks the LED indicator (Caps Lock, Overlay and Num Lock)
by key operation.
[ Caps/Num/Overlay LED test ]
(1) Press [ Caps Lock
(2) Press [ Fn + Num Lock ] key !...Num
(3) Press [ Fn
PRESS [Enter] KEY
Press Enter to display the following messages.
[ DAC pallet W-R-CMP test ] =
[ Processor latch test
Processor latch test (1:256 times, 2:endless) ?
Select either 1 (256 times) or 2 (endless), and press Enter .
After pressing Enter , the subtest writes '2A' and '15' data to 6 bits of 256x3
(RGB), reads the new data, and compares the results with the original data.
To exit, press Ctrl + Break , then press Enter .
Subtest 11 TFT color display (T2100CT only)
This subtest sets the video mode to '13,' displays color codes (0 to 63) at the
same time, then displays seven screens. The first shows many colors at once,
the next three display 64 shades of red, green, and blue successively, and the
last three display 64 shades of red, green and blue. Also, it sets the video
mode '5F,' and displays 256 colors.
Press Enter to change the display. Press Ctrl + Break to exit.
3-20
] key !...Caps
] key !...Overlay
(about 1 seconds)
] =
(on/off)
(on/off)
(on/off)
T2100 Series