User Guide
EN-7100s
12
v1_090802
EN-7100s
Operating Instructions
DOS-mode
This feature allows you to choose between 
resolutions of 720 x 400 or 640 x 400 while 
working in DOS-mode. Follow the instructions for 
selecting functions in the OSD window as listed on 
the previous page. Press your monitor’s Power 
button off and then on to activate your chosen 
DOS-mode resolution. Note: the default DOS-
mode resolution is 720x400@70Hz.
How to Optimize the DOS-mode 
1. Insert the Windows 95/98/2000/ME INF Driver 
Disk into your floppy drive.
2. Open Windows Explorer to search on the 
floppy drive (Drive A:) to find the Dos1.exe file.
3. Double-click on the Dos1.exe file.
4. Expand the picture to full screen by pressing 
the icon on the top of window. If there is no 
icon, the picture is already at full screen.
If you don't have the driver disk:
1. Choose Start / Programs / MS-DOS mode.
2. Type C:\> EDIT and press Enter. You will be in 
the Dos-Editor screen.
3. Press the AUTO button on the front of your 
monitor for 2 seconds. The screen will be 
automatically adjusted.
If the screen is distorted (for example: the picture 
can't go to full screen, the background of white 
pattern has vertical stripe noise, or the characters 
are twisted):
1. Change the resolution to 640 x 400 
2. Press the Power button off and then on.
3. Press the AUTO button for 2 seconds. 
Note: the above procedure must process 
in full-screen pattern.
To exit, press the ESC key or press ALT-F, and 
then press the X key. 
Plug & Play DDC1/2B Feature
This monitor is equipped with VESA DDC1/2B 
capabilities according to the VESA DDC 
STANDARD. It allows the monitor to inform the 
host system of its identity and, depending on the 
level of DDC used, communicate additional 
information about its display capabilities. The 
communication channel is defined in two levels, 
DDC1 and DDC2B.
The DDC1 is a unidirectional data channel from 
the display to the host that continuously transmits 
EDID information. The DDC2B is a bidirectional 
data channel based on the I²C protocol. The host 
can request EDID information over the DDC2B.










