Apple 5420/180 Manuale Utente

 

 Troubleshooting

Symptom Charts/Video - 13

 

Video output from the 

NTSC Video Out Card 

intermittently turns 

black and white.

1 Zap PRAM.

2 Use a contact cleaner to clean the contacts at the end of the 

ribbon cable (on the NTSC video out card) that fits in the 

external video slot.

3 Replace the NTSC Video Out Card.

Video coming from the 

NTSC Video Out Card 

exhibits flickering 

lines shooting across 

the screen.

1 Zap PRAM.

2 Replace the NTSC Video Out Card.