Toshiba Qosmio F50 manual 52TroubleshootingProcedures, Procedure1 CRTconnectioncheck

52￿Troubleshooting￿Procedures￿

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To￿determine￿if￿the￿computer’s￿CRT￿port￿is￿functioning￿properly,￿perform￿the￿following￿ procedures.￿Figure￿2-7￿outlines￿the￿process.￿Start￿with￿Procedure￿1￿and￿continue￿as￿instructed.￿

Procedure￿1:￿ CRT￿connection￿check￿

Procedure￿2:￿ CRT￿set￿check￿

Procedure￿1￿ CRT￿connection￿check￿

The￿CRT￿cable￿may￿be￿damaged￿or￿the￿connections￿may￿be￿loose.￿Use￿windows￿application￿ to￿check￿device￿can￿work￿fine￿or￿not.￿Perform￿Check￿1:￿

Check￿1￿ Make￿sure￿CRT￿cable￿is￿firmly￿plugged￿into￿both￿the￿CRT￿set￿and￿the￿CRT￿port￿ of￿the￿computer.￿If￿the￿cable￿is￿connected￿correctly,￿go￿to￿Check￿2.￿

Check￿2￿ Make￿sure￿the￿CRT￿port￿is￿firmly￿secured￿to￿the￿system￿board￿of￿the￿computer.￿If￿ the￿malfunction￿remains,￿go￿to￿Check￿3.￿

Check￿3￿ The￿CRT￿cable￿may￿be￿damaged.￿Replace￿with￿a￿good￿cable.￿If￿the￿malfunction￿ remains,￿go￿to￿Procedure￿2.￿

Procedure￿2￿ CRT￿set￿check￿

The￿CRT￿set￿may￿be￿faulty.￿Perform￿Check￿1:￿

Check￿1￿ Try￿using￿the￿set￿for￿CRT￿reception.￿If￿it￿does￿not￿work,￿the￿set￿may￿be￿damaged.￿ If￿the￿set￿does￿work,￿perform￿Check￿2.￿

Check￿2￿ Try￿connecting￿a￿different￿CRT￿to￿the￿computer.￿If￿the￿replacement￿CRT￿works,￿

the￿original￿set￿may￿be￿damaged.￿If￿the￿replacement￿set￿does￿not￿work￿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￿ ￿

￿ 52￿

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