Toshiba L500D manual Procedure1 Telephonelineconnectioncheck, Procedure2 Modemcardconnectioncheck

2￿Troubleshooting￿Procedures￿

This￿section￿describes￿how￿to￿determine￿if￿the￿computer's￿modem￿is￿functioning￿properly.￿ Figure￿2-12￿outlines￿the￿process.￿Perform￿the￿steps￿below￿starting￿with￿Procedure￿1￿and￿continuing￿with￿the￿other￿procedures￿as￿required.￿

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Procedure￿1:￿ Telephone￿line￿connection￿check￿

Procedure￿2:￿ Modem￿card￿connection￿check￿

Procedure￿3:￿ Modem￿card￿replacement￿check￿

Procedure￿1￿ Telephone￿line￿connection￿check￿

The￿telephone￿cable￿may￿be￿damaged￿or￿the￿connections￿may￿be￿loose.￿Use￿windows￿ application￿to￿check￿device￿can￿work￿fine￿or￿not.￿Attempt￿to￿connect￿the￿computer￿to￿a￿ network￿through￿using￿the￿modem.￿If￿the￿modem￿does￿not￿function￿at￿all,￿go￿to￿Procedure￿3.￿ If￿the￿attempt￿fails￿because￿the￿computer￿detects￿no￿telephone￿signal,￿the￿fault￿may￿be￿in￿the￿ telephone￿cable,￿the￿wall￿socket￿or￿the￿modem￿port.￿Perform￿Check￿1:￿

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Check￿1￿ Make￿sure￿telephone￿cable￿is￿firmly￿plugged￿into￿both￿the￿telephone￿wall￿socket￿

and￿the￿modem￿port￿of￿the￿computer.￿If￿the￿cable￿is￿connected￿correctly,￿go￿to￿

Check￿2.￿

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

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

Procedure￿2￿ Modem￿card￿connection￿check￿

Disassemble￿the￿computer￿following￿the￿steps￿described￿in￿Chapter￿4,￿Replacement￿ Procedures￿and￿ensure￿that￿the￿modem￿card￿is￿well￿connected￿to￿the￿system￿board.￿If￿the￿ problem￿persists,￿perform￿Procedure￿3.￿

Procedure￿3￿ Modem￿replacement￿check￿

The￿modem￿card￿or￿RJ-11￿jack￿may￿be￿faulty.￿Try￿replacing￿them.￿If￿the￿problem￿persists,￿the￿system￿board￿may￿be￿defective￿or￿damaged.￿￿Replace￿the￿System￿Board￿with￿a￿new￿one￿ following￿the￿steps￿in￿Chapter￿4,￿Replacement￿Procedures.￿

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SATELLITE￿L500D￿/￿￿PRO￿L500D￿MAINTENANCE￿MANUAL￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿45￿