Epson Equity LT Product Support Bulletin(s) - Page 21

Equity LT - Common Questions and Answers - of 9

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Q30. How are colors distinguished on the LCD display? A. Text mode In text mode, the CGA can display 16 colors (8 normal, 8 intensified), In LCD mode 3, 8 gradations are used for the 8 normal colors and the double-width font is used for the intensified colors. Note that in LCD modes 0, 1 and 2 that the colors are not distinguished. Intensity is represented by use of the double-width font or a halftone. Graphics mode CGA can display 4 colors at the same time in the 320 x 200 graphics mode. There are two methods available with the LCD display. Method 1 can display only 3 shades (4 simulated); Method 2 can display 4 shades. LCD modes 0 and 2 use Method 1; modes 1 and 3 use Method 2 and are thereby the better choice for displaying graphics. Q31. A. Why are there 4 LCD modes.? What are the differences between them? In LCD mode 3, 8 gradations and the double-width font are used instead of colors in text mode. However, it is difficult to read characters in a light shade or characters in which the foreground and background shades are similar. To resolve this, other LCD modes are provided. Roughly speaking, the differences in text mode (80 x 25 and 30 x 25) are as follows: Mode 0 A11 non-black characters use the white shade, with the double-width font being used for intensified characters. Mode 1 All non-black characters use the white shade, with halftone being used for intensified characters. Mode 2 All non-black characters use the white shade, with the double-width font being used for intensified characters. Mode 3 8 gradations are used for the 8 normal CGA colors. The double-width font is used for intensified characters. Q32. A. How long does it take to charge the battery pack? For full charge, it takes 12 hours when the LT is turned off. The battery pack cannot be overcharged, so it is perfectly safe to leave it connected for more than 12 hours. Also, remember that NiCad batteries need to be fully discharged from time to time for maximum effective life. So occasionally let the battery pack discharge to the point that the "Low Battery" LED comes on. Equity LT - Common Questions and Answers - Page 6 of 9

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Q30.
How are colors distinguished on the LCD display?
A.
Text mode
In text mode, the CGA can display 16 colors (8 normal, 8 intensified),
In LCD mode 3, 8 gradations are used for the 8 normal colors and the
double-width font is used for the intensified colors. Note that in LCD
modes 0, 1 and 2 that the colors are not distinguished. Intensity is
represented by use of the double-width font or a halftone.
Graphics mode
CGA can display 4 colors at the same time in the 320 x 200 graphics
mode. There are two methods available with the LCD display. Method 1
can display only 3 shades (4 simulated); Method 2 can display 4 shades.
LCD modes 0 and 2 use Method 1; modes 1 and 3 use Method 2 and are
thereby the better choice for displaying graphics.
Q31.
Why are there 4 LCD modes.? What
are
the differences between them?
A.
In LCD mode 3, 8 gradations and the double-width font are used
instead of colors in text mode. However, it is difficult to read
characters in a light shade or characters in which the foreground and
background shades are similar.
To resolve this, other LCD modes are
provided. Roughly speaking, the differences in text mode (80 x 25 and
30 x 25) are as follows:
Mode 0
A11 non-black characters use the white shade, with the
double-width font being used for intensified characters.
Mode 1
All non-black characters use the white shade, with halftone
being used for intensified characters.
Mode 2
All non-black characters use the white shade, with the
double-width font being used for intensified characters.
Mode 3
8 gradations are used for the 8 normal CGA colors. The
double-width font is used for intensified characters.
Q32.
How long does it take to charge the battery pack?
A.
For full charge, it takes 12 hours when the LT is turned off. The
battery pack cannot be overcharged, so it is perfectly safe to leave it
connected for more than 12 hours. Also, remember that NiCad batteries
need to be fully discharged from time to time for maximum effective
life. So occasionally let the battery pack discharge to the point that
the “Low Battery” LED comes on.
Equity LT - Common Questions and Answers - Page 6 of 9