Toshiba Satellite L20 Series Maintenance Manual page 123

Test Program for Field.
Subtest 02 640*480 Mode Display
This subtest uses 640*480 video resolution to display a high resolution white
frame, 256 letter types (8*16 pixels) and 64 gradations of white, red, green,
and blue as shown below.
[ 640*480 256 ]
0---+---1---+---2---+---3---+---4---+---5---+---6---
WHITE
RED
GREEN
BLUE
To exit this subtest and return to the High Resolution Display Test menu:
Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Press Ctrl + break if YES was selected for Test Loop on the Test Parameter
Menu.
Satellite L20 Maintenance Manual(960-Q01)
64 gradations
64 gradations
64 gradations
64 gradations
Press [ Enter ]key
256 letter
types
indication
123