HP Nc4000 Maintenance and Service Guide: HP Compaq Notebook nc4000 Series - Page 40
Flowchart 2.6—No Video, Part 1
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Troubleshooting Flowchart 2.6-No Video, Part 1 No video. Stand-alone or docking station? Docking Station Go to Section 2.7, No Video, Part 2. *NOTE: To change from internal to external display, use the hotkey combination. Stand-alone Internal or external display*? External Adjust brightness. Adjust brightness. Internal A Y Video OK? N Press lid switch to ensure operation. Done Y Y Video OK? Done Video OK? Done N N Check for bent pins on cable. Replace the following one at a time. Test after each replacement. 1. Cable between notebook and notebook display (if applicable) 2. Inverter board (if applicable) 3. Display 4. System board N N Video OK? Y Try another display. Internal and external video OK? Y Replace system board. Done Done 2-16 Maintenance and Service Guide
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