2￿Troubleshooting￿Procedures￿

Procedure￿1￿ Diagnostic￿test￿

Run￿the￿functioning￿Program￿on￿Windows￿model￿or￿DOS￿model,￿which￿will￿display￿the￿￿test￿ result.￿

If￿tests￿and￿diagnostics￿result￿abnormal￿go￿to￿Procedure￿2.￿If￿an￿error￿is￿not￿located,￿the￿button￿ functioning￿is￿properly.￿

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Procedure￿2￿ Replacement￿check￿

Disassemble￿the￿computer￿following￿the￿steps￿described￿in￿Chapter￿4,￿Replacement￿ Procedures,￿and￿perform￿the￿following￿checks.￿

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Check￿1￿ Make￿sure￿that￿Button￿test￿operation￿is￿correct,￿go￿to￿Check￿2.￿

Check￿2￿￿￿￿￿￿Make￿sure￿that￿the￿FFC￿of￿the￿button￿is￿assemble￿OK,￿go￿to￿Check￿3￿

Check￿3￿ The￿button￿may￿be￿damaged.￿￿Replace￿it￿with￿a￿new￿one￿following￿the￿ instructions￿in￿Chapter￿4.￿

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SATELLITE￿L550￿/￿SATELLITE￿L555￿/￿SATELLITE￿L557￿/￿SATELLITE￿PRO￿L550￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿43￿

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Toshiba PROL550 manual Procedure2 Replacementcheck