DEC VT420 - Before You Start; Displaying the Screen Test Pattern; Screen Test Pattern

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46 Adjusting The Video Monitor

4.2.1 Before You Start

Before you perform any adjustments, complete the following steps:

WARNING

The following procedures expose you to high voltages. Use

caution when performing them.

1. Remove the top cover (Section 3.1).

2. Plug in the power cord.

3. Turn the power switch on by moving it toward the ( | ). Wait for the

VT420 OK message to appear on the screen.

4. Make sure all shields are in place before doing any adjustments.

4.2.2 Displaying the Screen Test Pattern

You use the same screen test pattern for all monitor adjustments. The

test pattern is a screen full of E’s (Figure 4–4). To display the test pattern:

1. Set up the terminal (Sections 2.2.1 and 2.2.2).

2. Enter the sequence ESC # 8 to display a screen full of E’s.

If you do not know how to enter an ESC character, see Section 2.2.2.

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

MA-X0938-88

Figure 4–4 Screen Test Pattern

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