Toshiba T1960CT Maintenance Manual page 63

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
(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) ?
After pressing Enter , the subtest writes '2A' and '15' data to 6 bits of 256x3
(RGB), then reads the new data and compares the result with original data.
To exit, press Ctrl + Break , then press Enter .
Subtest 11 64 color graphics display (T1960CS), TFT color graphics display (T1960CT)
This subtest 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.
Press Enter to change the display. Press Ctrl + Break to exit.
Subtest 12 SVGA color graphics display (T1960CT)
NOTE: To execute this subtest, the external SVGA display must be
connected and the power-on display option of SETUP program must be
set to Internal/External.
This subtest displays seven screens.
Press Enter to change the display. Press Ctrl + Break to exit.
3-20
] key !...Caps
!...Num
] key !...Overlay (on/off)
= (about 1 second)
] =
(on/off)
(on/off)
T1960CS/T1960CT