GE CTF878, User & Service Manual

Page: 15 / 72

February 2009
1-8 Diagnostics
Testing the Screen
To test the proper functioning of the CTF878 screen, scroll to the Test
Screen option in the Test Menu and press
[ENTER]
. The screen then
shows the message, “Press Any Key To Continue.” Once you press a
key, a screen with a checkerboard pattern appears, as in Figure 1-6
below.
Figure 1-6: A Functioning Test Screen
Pressing a key two more times should result in two more
checkerboard patterns, followed by a series of dark and light screens.
Pressing the key through this sequence should return the CTF878 to
Operate Mode. If the test does not proceed according to this
sequence, please consult the factory.
Press Any Key to Continue