Toshiba manual SATELLITEL550/PROL550SERIESMAINTENANCEMANUAL7

2￿Troubleshooting￿Procedures￿

If￿the￿diagnostics￿program￿cannot￿detect￿an￿error,￿the￿problem￿may￿be￿intermittent.￿￿The￿test￿ program￿should￿be￿executed￿several￿times￿to￿isolate￿the￿problem.￿￿When￿a￿problem￿has￿been￿ located,￿perform￿the￿appropriate￿troubleshooting￿procedures￿as￿follows:￿￿

1.￿ If￿an￿error￿is￿detected￿by￿the￿battery￿test,￿perform￿the￿Power￿Supply￿Troubleshooting￿ procedures￿in￿Section￿2.3￿

2.￿ If￿an￿error￿is￿detected￿by￿the￿display￿test,￿perform￿the￿Display￿Troubleshooting￿ procedures￿in￿Section￿2.4￿

3.￿ If￿an￿error￿is￿detected￿by￿the￿keyboard￿test,￿perform￿the￿Keyboard￿Troubleshooting￿ procedures￿in￿Section￿2.5￿

4.￿ If￿an￿error￿is￿detected￿by￿the￿TouchPad￿test,￿perform￿the￿TouchPad￿Troubleshooting￿ procedures￿in￿Section￿2.7￿

5.￿ If￿an￿error￿is￿detected￿by￿the￿audio￿test,￿perform￿the￿Speaker￿Troubleshooting￿

procedures￿in￿Section￿2.8￿and￿the￿Optical￿Drive￿Troubleshooting￿Procedures￿in￿

Section￿2.9￿

￿￿￿￿￿￿￿￿￿

SATELLITE￿L550/PROL550￿SERIES￿MAINTENANCE￿MANUAL￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿7￿