Troubleshooting

 

Symptom Charts/Video (Continued) - 9

 

 

Video (Continued)

Screen is completely

1

Verify that external power cables are properly connected.

dark, fan is not

2

Reset logic board. (Refer to Additional Procedures.)

running, and LED is

3

Remove peripherals.

not lit

4

Remove NuBus cards.

 

 

5

Replace power supply.

 

 

6

Replace logic board. Retain customer’s SIMMs.

Multiple Scan

Replace Power Macintosh AV Card.

monitor attached to

 

 

Power Macintosh

 

 

7100/66AV displays

 

 

ghosting or video

 

 

smearing

 

 

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Image 43
Apple 7100/80AV, 7100/66AV manual Video