1400 HD  (250-3505)             Monitor Options         Faxback Doc. # 1055

You can use the built-in LCD, or you can connect an external RGB color 
monitor to the computer.

The LCD:

The Tandy 1400 HD display is a 25-line by 80 column dot matrix LCD, 
capable of emulating IBM standard CGA graphics.

When you use the LCD, adjust the display until it is at a comfortable view-
ing angle. The display stays at the angle you select. To adjust the 
contrast, use the contrast dial on the right side of the unit. To assure a 
clear image, your work area must have adequate lighting.

Operating or storing the system unit in high temperatures or in a 
high-humidity environment for a long time shortens the life of the display.
If the display ever becomes too faint to read, take the unit to your local 
Radio Shack service center for replacement of the backlight.

Color Monitor:

To use an RGB color monitor, connect its cable to the 9-pin D-Sub female 
connector inside the connector compartment on the rear of the system. 
Fasten the cable with screws. Connect the monitor's power cord to an AC 
power source. Turn on the monitor.  

Selecting a Display Device:

You can specify the type of display you are using (internal LCD or
external color monitor) in the following two ways:

* Using the function keys

  Press <CTRL><ALT><F12> if you powered up using a color monitor as the
  default display. This tells the computer to use the LCD. If you powered 
  up using the LCD as the default display, press CTRL  ALT  F11 to tell the
  computer to use the color monitor.

* Using the Setup mode

  Enter the Setup mode by pressing CTRL  ALT  INS. The F2 function key lets  
  you make the selection. Move the cursor to select the type of display, and  
  then press ENTER. The highlighted device is ow enabled. Press ESC to exit  
  Setup mode.

(jej-05/10/94)