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Service Hints & Tips

Document ID: COBN-3H8C9C

TP 380,385 - Port replicator checkout

Applicable to: World-Wide

The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.

Port Replicator Checkout
Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the bottom of the computer.
1. Power off the computer.
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 already connected to the computer, remove it first.)
6. Go to ¿How to Run the Diagnostics— on page 23 and follow that procedure.
7. If the advanced diagnostic device test does not find an error, suspecta problem with the port replicator of the system expansion bus.
8. Power off the computer and reconnect the port replicator.
9. Power on the computer and run the following advanced diagnostic tests:
Serial port test with the wrap plug installed on the replicator
Parallel port test with the wrap plug installed on the replicator
FDD-2 device test on the failing device with the scratch diskette
10. If diagnostic errors appear, replace the replicator or the external diskette drive. If the problem remains after the replacement, replace the system board.
11. If power problems appear only when you use the replicator, replace the replicator.

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	19-05-97
	Last Updated	19-08-98
	Revision Date	17-08-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 380, ThinkPad 380D, ThinkPad 380E, ThinkPad 380ED, ThinkPad 380XD, ThinkPad 385D, ThinkPad 385E, ThinkPad 385ED, ThinkPad 385XD
	Machine Type	2635
	Model	Various
	TypeModel
	Retain Tip (if applicable)
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