2￿Troubleshooting￿Procedures￿

Procedure￿4￿ Diagnostic￿check￿

The￿power￿supply￿may￿not￿charge￿the￿battery￿pack.￿￿Perform￿the￿following￿procedures:￿

1.￿ Reinstall￿the￿battery￿pack.￿

2.￿ Attach￿the￿AC￿adaptor￿and￿turn￿on￿the￿power.￿￿If￿you￿cannot￿turn￿on￿the￿power,￿go￿to￿ Procedure￿5.￿

3.￿ Run￿the￿Diagnostic￿test￿following￿the￿procedures￿described￿in￿Chapter￿3,￿Tests￿and￿ Diagnostics.￿If￿no￿problem￿is￿detected,￿the￿battery￿is￿functioning￿normally.￿

Procedure￿5￿ Replacement￿check￿

The￿system￿board￿may￿be￿disconnected￿or￿damaged.￿Disassemble￿the￿computer￿following￿the￿ steps￿described￿in￿Chapter￿4,￿Replacement￿Procedures.￿Check￿the￿connection￿between￿the￿AC￿ adaptor￿and￿the￿system￿board.￿After￿checking￿the￿connection,￿perform￿Check￿1:￿

Check￿1￿ Use￿a￿multi-meter￿to￿make￿sure￿that￿the￿fuses￿on￿the￿system￿board￿are￿not￿blown.￿If￿a￿fuse￿is￿not￿blown,￿go￿to￿Check￿2.￿￿If￿a￿fuse￿is￿blown,￿go￿to￿Check￿3.￿

Check￿2￿ Make￿sure￿that￿the￿battery￿cable￿is￿firmly￿connected￿to￿the￿system￿board.￿If￿it￿is￿ connected￿firmly,￿go￿to￿Check￿3.￿

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

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QOSMIO￿F50-￿QOSMIO￿F55-￿DYNABOOK￿QOSMIO￿F50￿Series￿Maintenance￿Manual￿ ￿

￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿13￿

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Toshiba Qosmio F50 manual Procedure4 Diagnosticcheck, Procedure5 Replacementcheck