Troubleshooting

 

Symptom Charts/Video - 12

 

 

is black, no

1

Reset Cuda chip. (Refer to The Cuda Chip in Basics for

 

Screen

boot tone and drive

2

instructions.)

does not operate, but

Reset logic board. (Refer to Resetting the Logic Board in

fan is running and

3

Basics for instructions.)

LED is lit

Remove all DRAM DIMMs and try replacing them one at a

 

 

 

4

time to test. Replace any bad DIMMs.

 

 

 

Replace processor card.

 

 

 

5

Replace logic board. Retain customer's DIMMs.

 

 

 

6

Replace power supply.

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Apple WS 9650 manual Screen