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Service Hints & Tips |
Document ID: GSMH-3D7CZK |
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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 3550-001 Expansion Unit - General Checkout
Applicable to: World-Wide
General Checkout (3550-001):
The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.
Overall Procedures:
1. Test the computer alone, to make sure there is not a problem with the computer before testing it with the 3550 Expansion Unit.
If there is a problem with the computer, solve it first. Then, test the computer with the 3550 Expansion Unit.
2. Have the external keyboard, mouse, parallel, and serial devices connected to the computer and test the computer. If no problem exists, connect them to the 3550 Expansion Unit and test the 3550 Expansion Unit with the computer installed.
3. When testing the 3550 Expansion Unit, use the Diagnostic Diskette supplied with the 3550 Expansion Unit.
a. Because the serial and parallel ports on the computer are covered by the 3550 Expansion Unit, when the computer is installed on the 3550 Expansion Unit, answer ¿No— when you are asked if a wrap plug is used.
b. Test the status indicators on the 3550 Expansion Unit by using the system status indicator test of the computer. The corresponding indicators on the 3550 Expansion Unit turn on and off in the test, except for the power-on indicator. This power-on indicator does not turn off due to hardware restriction.
4. If the user did not bring the computer with the 3550 Expansion Unit, use a properly working computer with the 3550 Expansion Unit.
5. If the diagnostics of the following SCSI devices fail or stop, suspect that the diagnostic programs are down level before replacing SCSI devices.
SCSI Tape Drive (error code = 0211XXXX)
SCSI CD-ROM Drive
(error code = 0215XXXX)
SCSI Rewritable Optical Drive
(error code = 0217XXXX)
To continue the diagnostics of other devices, remove these SCSI devices from the installed device list before starting diagnostics.
Important:
When the Problem Determination Procedure in the operation manual that is supplied with the adapter or device says ¿Have the system unit serviced,— the system unit stands for the computer and this 3550 Expansion Unit.
If the Reference Diskette or Diagnostic Diskette is shipped with this 3550 Expansion Unit, always use the corresponding version (or later) of the diskette for operation.
Notes:
1. The mouse or other pointing devices do not work if connected to the keyboard connector.
2. The mouse or other pointing devices do not work if connected to the mouse connector on the numeric keypad.
3. The computer keyboard does not work if an external keyboard is connected to the 3550 Expansion Unit.
- Power-on all external devices.
- Power-on the 3550 Expansion Unit.
- Watch the screen for a power-on self test (POST) error code.
Write down all error codes that are displayed. (You can press Pause when an error code occurs to hold the code on the screen.
Press F1 to continue.)
If the test stops and you cannot continue, go to ¿Symptom-to-FRU Index—.
003 (continued)
ARE THERE ANY EXTERNAL DEVICES ATTACHED TO THE EXPANSION UNIT?
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
10-01-97 | |
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Last Updated |
08-04-98 | |
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Revision Date |
07-04-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad Docking Stations | |
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Machine Type |
3550 | |
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Model |
001 | |
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TypeModel |
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Retain Tip (if applicable) |
N/A | |
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