THE EXTERNAL CRT MONITOR PORT SX/DX
The external CRT (Cathode Ray Tube) monitor port is located behind the right-hand cover on the rear of
the 486SX/DX-WinBook as shown in the illustration below. To gain access to the external monitor
connector, simply pull the cover open.
Fig. 6-2 Locating the External CRT Monitor Port
The External CRT monitor port supports the connection of any analog VGA compatible monitor. You
cannot connect a digital monitor such as a conventional monochrome, CGA or EGA monitor, to this
port. The IBM VGA standard is an analog signal, and only an analog monitor will work with the
486SX/DX-WinBook. If you have a multi-frequency [SX/DX 6-2] monitor this probably supports both
digital and analog modes. If you wish to connect such a monitor to the 486SX/DX-WinBook you must
configure the monitor in analog mode.
To connect an external monitor, first turn your 486SX/DX-WinBook off. Connect the 15-pin
D-connector cable from the monitor to the external monitor port, and secure the connector in place by
tightening the two screws. Now turn your system on again and turn the power to the monitor on.
With an external monitor connected, you may toggle the display between the external CRT, the LCD and
both at the same time by pressing the < Ctrl> < Alt> F10 key combination.
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