2.Replace system board.

If you are unable to correct the problem, go to “Undetermined problems” on page 56.

Computer exploded view (Types 2179 and 6643)

I/O connectors and removal procedures are described on the following pages.

Note:

The number of defective pixels to qualify a TFT LCD panel to be replaced under warranty is 8 or more for all types 2179 and 6643 computers.

18Hardware Maintenance Manual

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Image 26
IBM 6643 manual Computer exploded view Types 2179