Atari CX 5200 Field Service Manual page 54

VERIFY OS
ROM
Purpose:
•
Procedure: P ress key 8 followed by START.
•
For m at:
•
3-8) the OS ROM chip is d efective.
restart the test.
No Flowchart Entry Point.
TONE TEST
Purpos e: To ch ec k the audio generation section of the POKEY (A l) .
•
Procedure: P ress key 6 followed by STA RT .
•
For mat: The screen prints at the bottom :
•
1 followed by ST A RT.
The first two tones may be inaudible but you can hear the speaker click.
Repeat for registers 2,3,4.
D iagnostic Flowchart Entr y Point: Pg. 4 A- 1 7.
CX5200 Field S er vice Manual
To test the OS ROM (AS) for proper functioning.
If error code 30 appears on the Error Summar y (Figure 3-1 , pg.
A series of eight ton es sounds on each register.
3 A-7
Replac e the d efective chip and
4)
Register (1 to ?
Changed by
ECN /1003 6
6 / 2 1 /83
Press key