3.116 bytes

Service Hints & Tips

Document ID: GSMH-3D7DJ6

This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose.

TP 3550 Expansion Unit - Miscellaneous Symtoms

Applicable to: World-Wide

Miscellaneous Symptoms:

Symptom/Error	FRU/Action
Program-load error during remote IPL from the file service. Displayed on upper or lower half of the LCD.	1. Network Adapter
External display screen changes colors.	1. External Display 2. Docking Frame
One or more keys do not work on the external keyboard but the 3550 Expansion Unit is otherwise functional. (See - 'External Keyboard/Auxillary Input Device Checkout' -.)	1. External Keyboard 2. Keyboard Cable 3. System Board of 3550 Expansion Unit
Power-good light does not turn on and fan runs.	1. System Board of 3550 Expansion Unit 2. Power Supply
Power-good light does not turn on, fan does not run, and 3550 Expansion Unit is not functional. (See żUndetermined Problem—.)	1. Power Supply 2. System Board of 3550 Expansion Unit
Intermittent Failures. (See żUndetermined Problem—.)	1. Power Supply 2. System Board of 3550 Expansion Unit 3. Any Device or Adapter
3550 Expansion Unit cannot be powered-off.	1. System Board of 3550 Expansion Unit 2. Power Supply
LED for hard disk drive stays on.	1. SCSI Hard Disk Drive 2. System Board of 3550 Expansion Unit
LED for hard disk drive is not working, but the 3550 Expansion Unit is completely functional.	1. System Board of 3550 Expansion Unit

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	10-01-97
	Last Updated	07-04-98
	Revision Date	06-04-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad Docking Stations
	Machine Type	3550
	Model	001
	TypeModel
	Retain Tip (if applicable)	N/A
	Reverse Doclinks and Admin Purposes