Atari CX 5200 Field Service Manual page 39

The Model 5 200 tests are run using the Port Board (Loop Back Board) which
auto matically cy cles through all of the tests. If a test fails: turn the unit off, remove
the Port Board, plug a game controller into Port
select any of the tests manually by pressing the proper key followed by the start key.
NOTE: The Diagnostic Cartridge
is inserted before the unit
Press the * or II key followed by the start key to print this menu on the screen.
=Any Video
I
2=Color Bars
3 =Gray Bars
4 =Port Test
5 =Pokey Adjust
6 =Tone Test
Options 9 and 0 are not used at this time.
The following pages show the tests as they appear with the Port Board plugged in.
If a test fails, go to the F lowchart Entry Point indicated for that test and beg in
troubleshooting.
CX5 200 Field Service Manual
cycle automatically only
will
is turned on.
7 =Ram Test
8=Verify OS ROM
9=Display Options
O =Examine
3- 2
and turn the unit back on. You can
1,
if the Port Board