Atari CX 5200 Field Service Manual page 133

If the ST A RT , PAUSE or RESET buttons fail, g o to F lowchart B , page 7 - 1 2 of this
section.
If the Keypad(s) fail(s), go to F lowchart B X, page 7 - 1 3 of this section.
Trakball and Firebutton T e s t :
Insert the M issile Com mand cartridge into the Model 5200.
1 )
Turn the Model 5200 on and press START.
2)
By spinning the ball at a moderately slow speed, verify that it w ill cause
3)
the cursor (crosshairs) to move in any direction. Be sure that it moves to
all extre mes of the screen ( up, down, left, right, diagonal, and circular
motions).
NOTE : When moving in diagonal
slight "steps".
in
not be considered a
Diagonal
N OTE :
If
5T ART
as
For Cursor left/right failures, go to Flowchart C, page 7 - 1 4 of this section.
For Cursor up/down failures, go to Flowchart D , page 7 - 1 9 of this section.
Move the cursor to the right border of the screen. Spin the ball as fast as
4)
possible by hand in the rig ht direction.
dropouts".
cursor should remain on the right border . There sho uld be no movement to
the left.
Repeat this test for the left, up, and down directions.
failures, go to Flowchart E, page 7 -2 3 .
Flowchart F , page 7 -24.
CX5200 Field Service M anual
due
This is
to
failure
trakba11
Motion
Figure 7-4. Diagonal or Circular Motion.
more time is required than the attack wave allows, simply press
needed.
While spinning the ball as fast as possible to the right, the
7-8
circular motions,
the
or
the type of programming
(see
Figure 7-4).
C ir cular Motion
This tests
For up/down failures, go to
cursor will move
and should
used
for "directional
For Left/Right