Optional Device Checkout
If you suspect an optional device problem, do either of the following:
“Port Replicator Checkout”
“External Monitor
Port Replicator Checkout
Do the following procedures to isolate a port replicator problem. A port replicator attaches to the system
expansion | connector | on the bottom | of | the | computer. | |
1. | Turn | off the | computer. |
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2. | Remove the failing devices | from | the | replicator. |
3.Unplug the AC adapter from the replicator, if attached.
4. Remove the port replicator from the computer.
5.Reconnect the failing device directly to the computer. (If another device is already connected to the
| computer, remove it |
| first.) |
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6. | Go | to | the | “Running | the Diagnostics” on | page | 34 and | |
| run | the | diagnostics. |
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7. | If | the advanced diagnostic device test does not find | ||||||
| an | error, | suspect | a | problem with the | port | replicator of | |
| the | system | expansion | bus. |
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8.Turn off the computer and reconnect the port replicator.
9.Turn on the computer and run the following advanced
diagnostic | tests: |
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Serial | port | test | with | the | wrap | plug | installed | on | |
the | replicator |
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Parallel | port | test | with | the | wrap | plug | installed | on | |
the | replicator |
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10.If diagnostic errors appear, replace the replicator or diskette drive attachment unit.
If the problem remains after the replacement, replace the system board.
11.If power problems appear only when the replicator is used, replace the replicator.
External | Monitor |
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If | a | monitor | problem | occurs only when an external monitor |
is | connected, | do the | following: |
Note: Before you replace a monitor:
Check that the 95XX systems support either 63XX, 85XX, or 95XX displays.
Make sure that the external monitor is properly connected to the computer.
If the screen is rolling, replace the external monitor. If that does not correct the problem, replace the FRUs in the following order:
1. System board
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