HP ProBook 630 Maintenance and Service Guide - Page 99
Keyboard backlight, Touchpad, Table 7-35
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Table 7-35 Issues, possible causes, and fixes (continued) Items Procedures The following steps are for authorized providers and technicians. 1. Verify whether keyboard flex cables are in good condition (no delamination or torn cable end, no missing or cracked tracks, pads). 2. Verify that keyboard flex cable ends are fully inserted and aligned with connectors on system board and back of keyboard, and that connector tabs are properly closed. 3. Reseat point stick cables. Example of back of keyboard, including keyboard, point stick, and backlight cables. Keyboard backlight Use this information to troubleshoot keyboard backlight issues. Table 7-36 Issues, possible causes, and fixes Items Procedures Symptom Backlight function not working properly Possible causes Backlight disabled, loose connection. Troubleshooting steps NOTE: Not all notebook computers have backlit keyboards. A keyboard function key lets you turn the light on and off. Verify whether backlit feature is not disabled by pressing a combination of fn + backlit key. The following steps are for authorized providers or technicians. 1. Verify whether backlight flex cables are in good condition (no delamination or torn cable end, no missing or cracked tracks or pads). 2. Verify that backlight flex cable ends are fully inserted and aligned with connectors on system board and that connector tabs are properly closed. 3. Reseat backlight cable. Touchpad Use this information to troubleshoot touchpad issues. Table 7-37 Issues, possible causes, and fixes Items Procedures Symptoms Not working properly Possible causes Touchpad turned off, driver, settings. (1) Touchpad on/off button Troubleshooting steps Common issues and possible solutions 87
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