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18.717 bytes |
Service Hints & Tips |
Document ID: GSMH-3BNHGA |
TP 701C/CS - General Checkout
Applicable to: World-Wide
General Checkout:
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.
Warning:
Only trained personnel should service the computer.
Drives in the computer that you are servicing might have been rearranged or the drive startup sequence might have been altered. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be destroyed if you select an incorrect drive.
Perform the following procedures to complete a general checkout:
1. Power-off the computer and all external devices.
2. Check all cables and power cords for correct connection.
3. Power-on all external devices.
4. Power-on the computer..
5. Press the F1 key any time while the POST memory count is proceeding. The computer emits one short beep at the end of POST and the easy-setup screen appears. If this does not occur, go to 'Symptom-to-FRU Index—.
6. Run the advanced diagnostic tests. For information on how to run the diagnostic tests, see 'Running the Diagnostics.—. For information on how to disable the password, see 'Removing the Power-On Password—.
7. Find your symptom in the table in 'Checkout Guide—, and then go to the appropriate page. Otherwise, see 'Symptom-to-FRU Index—, and then go to 'Undetermined Problems—.
Memory Checkout:
Depending on the amount of additional memory installed by the customer, the memory size that is available for customer use appears differently. This is not a hardware problem. Consult the following table for the available memory on a system with a 4MB base memory when the customer installs different sizes of small outline dual inline memory module (SO-DIMM.).
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SO-DIMM Installed |
Total Memory |
Availble Memory |
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None |
4MB |
3 712KB |
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4MB |
8MB |
7 808KB |
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8MB |
12MB |
11 904KB |
|
16MB |
20MB |
20 096KB |
The following table shows the available memory on a system with an 8MB base memory with different sizes of SO-DIMM..
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SO-DIMM Installed |
Total Memory |
Available Memory |
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None |
8MB |
7 808KB |
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4MB |
12MB |
11 904KB |
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8MB |
16MB |
16 000KB |
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16MB |
24MB |
24 192KB |
Memory errors might stop system operations or cause error codes to be displayed.
Use the following procedure to isolate memory problems:
Note:
Make sure that the SO-DIMM is fully installed in the connector. A loose connection can cause an error. For more information about installing SO-DIMM, see 'FRU Removals and Replacements—.
1. Power-on the computer. Press the F1 key any time while the POST memory count is proceeding. At the end of the memory test, the easy-setup screen appears.
2. Select Test and press Enter.
3. Press Ctrl+A to enter advanced diagnostics.
4. Select Memory and press Enter to run the memory test on base memory.
If an error appears below 3 712KB on a system with a 4MB base memory (7 808KB with an 8MB base memory), replace the bottom system board. If an error appears above 3 712KB on a system with 4MB base memory (7 808KB with an 8MB base memory), replace the SO-DIMM.
5. If after replacing the SO-DIMM, an error above 3 712KB on a system with a 4MB base memory or 7 808KB with an 8MB base memory still appears, replace the bottom system board.
6. To exit from the test screen, press Esc.
If memory problems occur intermittently, use the loop option to repeat the test.
For more information on running the loop test, see 'Running the Diagnosics.—. When the test detects an error, an error log is printed on the printer connected to the parallel port. See 'Printing and Displaying Error Logs— for more information.
Do not replace FRUs because of a single, nonreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as electrostatic discharge or software errors. Consider replacing a FRU only when a recurring problem exists. If you suspect that problems besides a failing FRU exist, clear the error log and run the test again. Do not replace any FRUs if errors do not reoccur.
Updating Flash Memory:
BIOS and easy-setup, which includes configuration programs and diagnostic tests, are stored in Flash memory. To update them, Flash memory must be updated.
When Updating Flash Memory:
Do not power-off the computer, disconnect the Vac power, or remove the battery pack during the Flash update. The system board will have to be replaced if the update is interrupted.
Updating Flash memory also resets all of the customer's configuration settings to the default values.
To update the Flash memory, perform the following steps:
1. Within the "Configuration Utility", check the 'Startup Sequence— setting and make sure that it is set to Smart or Conventional. If it is set to Hard Disk , change the setting to Smart or Conventional to set the system to boot from the update diskette in the following procedure.
If you change the user's setting, make a note of the setting before changing it.
2. Power-off the computer..
3. Connect the computer. to Vac power and install a charged battery pack.
4. Insert the Flash update diskette in drive A.
5. Power-on the computer..
6. Follow the instructions as they appear to update Flash memory.
7. Power-off the computer, and then power it on again. Error codes 162 and 163 will be displayed.
Press Enter to enter the Configuration Utility.. Reset the date and time.
8. Press Esc to leave the Configuration Utility, and then press Enter to save the changes.
9. If the Flash update fails, replace the bottom system board. Save the system board that failed, marking it 'to be reflashed.—
Keyboard/Auxiliary Input Device Checkout:
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the top system board.
If the keyboard cable connection is correct, run the Keyboard Test by performing the following steps:
1. Power-off the computer., and then power it on again.
2. Press the F1 key any time while the POST memory count is proceeding. At the end of the memory test, the easy-setup screen appears.
3. Press the left or right arrow key to select Test and press Enter or position the pointer over the Test icon and click the left click button once.
4. Press Ctrl+A to enter advanced diagnostics.
5. Press Ctrl+K to start the keyboard diagnostic test.
6. Press each key.A shaded box appears in the corresponding key position on the keyboard layout on the screen. Press the key again to remove the box.
Note:
The shaded box appears in Fn only during the first keyboard test of a diagnostics session.
7. To exit from the test screen, press Esc.
If the tests detect a keyboard problem, perform the following tasks one at a time to correct the problem:
Note:
Do not replace a nondefective FRU.
- Reseat the three cables.
- Replace the keyboard.
- Replace the top system board.
The following auxiliary input devices are supported for this computer through the Multiport II.:
- Numeric keypad
- Mouse (PS/2* compatible)
- External keyboard (standard PS/2 or with keyboard/mouse cable)
If any of the above devices do not work, reseat the cable connector and repeat the failing operation. If the problem does not reoccur, recheck the connector. If the problem reoccurs, repeat the operation with a device that is known to be good. If the problem still reoccurs, go to 'Multiport II Checkout.—
Trackpoint III Checkout:
If the Trackpoint III does not work, check the configuration in the Configuration utility. by pressing PgDn to reach the I/O Management screen. If the setting for Trackpoint III. is Off , press the left or right arrow to change it to On.
If this does not correct the problem, continue with the following procedure:
Note:
The Trackpoint III performs automatic compensations to adjust the pointer sensor. During this process, the pointer moves about the screen for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the Trackpoint III. pointer when the computer is powered on, when the system is running, or when readjustment is required because the temperature has changed significantly within a short period of time or the temperature is higher than its operating temperature. This symptom does not indicate a hardware problem. No service actions are necessary if the pointer movement stops in a short period of time. However, the Trackpoint III will not stabilize if you apply pressure to it. If pointer movement occurs, you can go into Suspend mode, and then resume normal operation. Resuming or turning the computer on both cause the Trackpoint III to be calibrated, which may correct the problem. If you see continual movement of the pointer, the Trackpoint III is probably defective. In rare cases, the top system board can also cause this problem.
If a click-button problem or Trackpoint III problem occurs, perform the following steps:
1. Power-off the computer., and then power it on again.
2. Press the F1 key any time while the POST memory count is proceeding. At the end of the memory test, the easy-setup screen appears.
3. Select an item with the Trackpoint III..
4. Press either the left or right click button.
5. Verify that both buttons work correctly.
If either the Trackpoint III or the click button does not work, perform the following tasks one at a time to correct the problem:
Note:
Do not replace a nondefective FRU.
- Reseat the three keyboard cables.
- Replace the keyboard.
- Replace the top system board.
Diskette Drive Checkout:
Use the following procedure to isolate the diskette problem to a controller, drive, or diskette. For this test, you need a scratch, write-enabled, double-sided, high-density diskette (2.0MB that formats to 1.44MB) that is known to be good.
1. Power-off the computer..
2. Attach the external diskette drive if it is not already attached.
3. Power-on the computer.
4. Press the F1 key any time while the POST memory count is proceeding. When the memory test is completed, the easy-setup screen appears.
5. Press the left or right arrow key to select Test and press Enter or position the pointer over the Test icon and click the left click button once.
6. Press Ctrl+A to enter the advanced diagnostics.
7. Select the FDD-1 icon and press Enter. This runs the controller test and the drive read/write test.
8. If the controller test detects an error, FRU code 10 appears. First, replace the diskette drive. and cable and run the test again. If FRU code 10 appears from this second test, replace the top system board.
9. If the controller test runs without errors, select Tool from the advanced diagnostic screen. (See 'Running the diagnostics.— for instructions.) Select the FDD-1 icon and insert a scratch diskette to continue with the drive test.
10. Select the FDD-1 icon from the advanced diagnostics screen and press Enter.
11. If the drive test detects an error, FRU code 50 appears. Replace the drive or the drive cable.
12. To exit from the test screen, press Esc.
Hard Disk Drive Checkout:
1. Power-off the computer.
2. Insert the Hard Disk Drive to be tested.
3. Power-on the computer. Press the F1 key any time while the POST memory count is proceeding. When the memory test is completed, the Easy-Setup screen appears.
4. Press the left or right arrow key to select Test and press Enter or position the pointer over the Test icon and click the left click button once.
5. Press Ctrl+A to enter advanced diagnostics. and press Enter.
6. If the test detects an error, FRU code 60 appears under the HDD-1 icon. Replace the Hard Disk Drive..
7. To exit from the test screen, press Esc.
Multiport II Checkout:
Use the following procedure to isolate a Multiport II. problem. The Multiport II attaches to the system expansion connector at the rear of the computet..
1. Power-off the computer.
2. Remove all of the devices from the Multiport II.
3. Unplug the AC Adapter from the computer., if attached, and plug the AC adapter into the Multiport II if it is not already attached.
4. Attach wrap plugs to the serial port and the parallel port on the Multiport II..
5. Power-on the computer..
6. Press the F1 key any time while the POST memory count is proceeding. When the memory test is completed, the easy-setup screen appears.
7. Press the left or right arrow key to select Test and press Enter or position the pointer over the Test icon and click the left click button once.
8. Press Ctrl+A to enter advanced diagnostics.
9. Select Tool to install the wrap plugs on the ports. (See 'Running the Diagnostic's— for instructions.)
10. Run the diagnostic. tests on the parallel and serial ports on the computer and the Multiport II. To test the external display device, select the Display icon. Test results will be displayed under the icon for each selected device.
11. If the diagnostic tests do not find errors, suspect a problem with the previously attached devices.
If the tests find errors, perform the following steps to recheck the computer:
- Power-off the computer.
- Remove the Multiport II from the computer..
Power-on the computer and rerun the tests on the available parallel and serial ports. If the errors do not reoccur, replace the Multiport II. If the errors persist, suspect that the errors are related to internal FRUs and replace the appropriate FRU (for information on FRU codes, see 'FRU Codes—).
12. If power problems appear only when using the Multiport II., replace the Multiport II.
13. To exit from the test screen, press Esc.
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
22-11-96 | |
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Last Updated |
19-08-98 | |
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Revision Date |
18-08-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 701 | |
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Machine Type |
2630 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
N/A | |
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