Apple 578 Benutzerhandbuch

 

 Troubleshooting

Symptom Charts/Video

 

 (Continued)

 

 - 4

 

Picture breaks into 

diagonal lines, or 

picture rolls 

vertically or 

horizontally

1 Perform video adjustments. Refer to “Video” in Adjustments 

chapter.

2 Replace analog board.

Out of convergence 

(color bleeds from 

text or lines)

1 Perform convergence adjustment. Refer to “Convergence” in 

Adjustments chapter.

2 Replace analog board. 

3 Replace CRT. 

Black screen spots 

(burnt phosphors)

Replace CRT.