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5.198 bytes |
Service Hints & Tips |
Document ID: GSMH-3BNHM9 |
TP 701C/CS - Infrared Transceiver Checkout
Applicable to: World-Wide
Infrared Transceiver Checkout:
The infrared transceiver is located on the inverter card in the ThinkPad 701C/CS. When you run diagnostics on the infrared transceiver, the test is actually checking the top system board, not the infrared itself. Therefore, complete the following steps before running diagnostics or replacing any FRUs.
If you cannot establish a connection between the ThinkPad and a remote system, perform the following steps:
1. Ensure that the device you attempted to connect with is an Infrared Data Association (IRDA) compliant device.
2. Check to make sure that both systems are using the same revision level of the same software.
3. Check setup options on both systems to ensure that the baud rate and other setup parameters are the same.
4. Check the Configuration Utility to ensure that the infrared transceiver is assigned to the same serial port that is designated in the application software and that the IRQ assignment is not shared with any other device such as the internal modem or external serial port on the MultiPort II.
5. Verify that the two systems are in close proximity (less than 1 meter ( 3.2) feet apart for IRDA-compliant devices) and that the infrared transceiver window on the TP 701C/CS is aligned with (directly opposite) the remote device's window.
6. Ensure that the windows on both systems are clean and unobstructed.
If the two systems still will not connect after you have followed the preceding steps and the remote system is another computer with a terminal program (for example, Windows** Terminal** or Procomm**) installed, perform the following tests:
1. Set up the terminal application on each system to communicate with the infrared transceiver serial port at a speed of 115 KB per second.
2. Type characters on the TP 701C/CS keyboard and check to see whether or not these characters appear on the remote system. (Note that the characters you type will not appear on the TP 701C/CS system.)
3. Type characters on the remote keyboard and check to see whether or not these characters appear on the system.
4. If characters do not appear in either step 2 on or 3 and you are certain that infrared is working correctly on the remote system, replace the inverter card.
5. If characters do appear, consult the software vendor to ensure that the customer is using a compatible software package and that the setup parameters are correct.
If data transfers between the TP 701C/CS and the remote system are slow or unstable:
1. Verify that the two systems are in close proximity (less than 1 meterÐ 3.2 feet apart for IRDA-compliant devices) and that the infrared window on the TP 701C/CS is aligned with the remote device's window.
2. Ensure that the windows on both systems are clean and unobstructed.
3. If you are using TranXit, check the IRDELAY parameter in the TRANXIT.INI file in the TRANXIT directory. The parameter should be set to 10.
To run the diagnostics test on the infrared transceiver, 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. When the memory test is completed, 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. Select Infrared and press Enter to run the test on the infrared transceiver. Test results will be displayed under the Infrared icon.
6. If no errors are detected, the 'OK' message appears.
7. If an error is detected, the FRU code and error description message appear. Go to FRU Codes— and replace the FRU.
8. To exit from the test screen, press Esc.
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Hint Category |
Infrared | |
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Date Created |
22-11-96 | |
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Last Updated |
16-04-98 | |
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Revision Date |
11-04-99 | |
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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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Retain Tip (if applicable) |
N/A | |
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