Acer TravelMate 2400 Service Manual

Also see for TravelMate 2400: Guía del usuario User guide Manuel d'utilisation Manual do utilizador

Contents

Acer TravelMate 2400 Service Manual Manual pdf 79 page image

72 Chapter 4Undetermined ProblemsThe diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect,whether a short circuit is suspected, or whether the system is inoperative.Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU).NOTE: Verify that all attached devices are supported by the computer.NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “PowerSystem Check” on page 59):1. Power-off the computer.2. Visually check them for damage. If any problems are found, replace the FRU.3. Remove or disconnect all of the following devices:T Non-Acer devicesT Printer, mouse, and other external devicesT Battery packT Hard disk driveT DIMMT PC Cards4. Power-on the computer.5. Determine if the problem has changed.6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.7. If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:T System boardT LCD assembly