Epson Equity LT Product Support Bulletin(s) - Page 23

The Equity LT supports both LCD and RGB displays. The frame

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*1 : Maximum backlight brightness *2 : Backlight turned off *3 : HDD switch turned off Q37. A. What are the differences in the ROM BIOS between the Equity LT and the Equity I+? The differences are: 1) The Equity LT ROM BIOS turns off the EL element of the backlit LCD if a specified time has passed without keyboard input. The backlight is restored by pressing any key. The backlight period is stored in system CMOS RAM. 2) The Equity LT supports both LCD and RGB displays. The frame frequency is different between the LCD display (88 Hz) and the RGB display (60 Hz). The BIOS changes frame frequency automatically, depending on which display is enabled. 3) A "quick boot" function has been added to the LT BIOS. Holding down the "Alt" key while powering on causes the BIOS boot code to bypass the RAM test. Q38. A. What are the differences between the Equity LT Reference diskette and the Equity I+ Diagnostics diskette? The differences are: 1) The title and date of the copyright. 2) ROMBIOS has been changed so that it doesn't display the machine name. HELP has been changed accordingly. 3) The checksum test for the ROM BIOS has been deleted. 4) HDFMTALL.EXE has been deleted. 5) HDSIT has been removed as the HDD moves the heads to the shipping zone after approx. 5 seconds. 6) SETUP now also sets the backlight period. 7) The monochrome display, secondary parallel port and math co- processor tests have been removed. Also, the "Modifying the DEVICE LIST" selection has been removed. 8) The LIGHTON command has been added. Equity LT - Common Questions and Answers - Page 8 of 9

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*1
: Maximum backlight brightness
*2 :
Backlight turned off
*3 :
HDD switch turned off
Q37.
What are the differences in the ROM BIOS between the Equity LT and
the Equity I+?
A.
The differences are:
1)
The Equity LT ROM BIOS turns off the EL element of the backlit
LCD if a specified time has passed without keyboard input. The
backlight is restored by pressing any key. The backlight period is
stored in system CMOS RAM.
2)
The Equity LT supports both LCD and RGB displays. The frame
frequency is different between the LCD display (88 Hz) and the
RGB display (60 Hz). The BIOS changes frame frequency
automatically, depending on which display is enabled.
3)
A “quick boot” function has been added to the LT BIOS. Holding
down the “Alt” key while powering on causes the BIOS boot code
to bypass the RAM test.
Q38.
What are the differences between the Equity LT Reference diskette and
the Equity I+ Diagnostics diskette?
A.
The differences are:
1)
2)
3)
4)
5)
6)
7)
8)
The title and date of the copyright.
ROMBIOS has been changed so that it doesn’t display the machine
name. HELP has been changed accordingly.
The checksum test for the ROM BIOS has been deleted.
HDFMTALL.EXE has been deleted.
HDSIT has been removed as the HDD moves the heads to the
shipping zone after approx. 5 seconds.
SETUP now also sets the backlight period.
The monochrome display, secondary parallel port and math co-
processor tests have been removed. Also, the “Modifying the
DEVICE LIST” selection has been removed.
The LIGHTON command has been added.
Equity LT -
Common Questions and Answers - Page 8 of 9