User manual IBM THINKPAD 390

[. . . ] i Note: Before using this information and the product it supports, be sure to read the general information under "Safety Information" on page viii and "Notices" on page 160. For ergonomics information, see the Online User's Guide. First Edition (August 1999) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimers or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. [. . . ] The ThinkPad Configuration program window appears: 96 ThinkPad 390X User's Reference Frequently Asked Questions Note: You can also start the ThinkPad Configuration program as follows: 1. Move the cursor to Programs, ThinkPad; then click ThinkPad Configuration. My screen keeps blanking when I do not want it to. You can disable any system timers, such as the LCD turn off timer or the power management mode timers with the ThinkPad Configuration program. Using the Turn off monitor: item in the Power Schemes tab, you can set longer timeout values for the display or you can disable it by setting it to Never. How do I use my infrared port as a communication port? Solving Computer Problems 97 Frequently Asked Questions You can disable your ThinkPad's infrared port in order to free resources for another communication device, such as the serial port. If the infrared port is disabled, you need to enable it before you use it again. A "Warning" might appear that the hardware resource is in use by another communication device. Note: If you check your infrared port and it is already enabled, you can use it immediately without changing any settings. After your infrared port is enabled, you can use it as a communication port. If it does not work properly, you might have a problem with the communication software application on your system or the device that you are trying to communicate with. Check the online help system for your communication software if the other device appears to be working properly. ) button. 98 ThinkPad 390X User's Reference Frequently Asked Questions You can disable your ThinkPad's serial port in order to free resources for another communication device, such as the infrared port. If the serial port is disabled, you need to enable it before you use it again. A "Warning" might appear that the hardware resource is in use by another communication device. Note: If you check your serial port and it is already enabled, you can use it immediately without changing any settings. After your serial port is enabled, you can use it as a communication port. If it does not work properly, you might have a problem with the communication software application on your system or the device that you are trying to communicate with. Check the online help system for your communication software if the other device appears to be working properly. How can I use an external mouse when I am at my desk, but then use the TrackPoint when I am away from my desk?) button. Solving Computer Problems 99 Frequently Asked Questions For a PS/2 mouse: Connect the PS/2 mouse. Note: If you have not previously installed a serial mouse, you need to install the serial mouse device driver. See "Attaching an External Mouse or Numeric Keypad" on page 63 for instructions. [. . . ] La compagnie de télécommunications peut demader à l'utilisateur de débrancher un appareil à la suite de réparations ou de modifications effectuées par l'utilisateur ou à cause de mauvais fonctionnement. Pour sa propre protection, l'utilisateur doit s'assurer que tous les fils de mise à la terre de la source d'énergie électrique, des lignes téléphoniques et des canalisations d'eau métalliques, s'il y en a, sont raccordés ensemble. Cette précaution est particulièrement importante dans les régions rurales. Avertissement L'utilisateur ne doit pas tenter de faire ces raccordements lui-même; il doit avoir recours à un service d'inspection des installations électriques, ou à électricien, selon le cas. L'indice de charge (IC) assigné à chaque dispositif terminal indique, pour éviter toute surcharge, le pourcentage de la charge totale qui peut être raccordée à un circuit téléphonique bouclé utilisé par ce dispositif. [. . . ]