NV52/NV54/NV56/NV58 Service Guide - tim.id.au

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Error Messages FRU/Action Sequence
I/O device IRQ conflict n Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot
the notebook.
n Test or replace the CMOS battery, run the BIOS Setup Utility to
reconfigure system time, then reboot the system.
n Test or replace the system board.
Operating system not found n Run the BIOS Setup Utility and see if fixed disk and drive A: are
properly identified.
n Test or replace the diskette drive
n Test or replace the hard disk drive
n Test or replace the system board
No-beep error messages
No-beep Error Messages FRU/Action in Sequence
No beep, power-on indicator turns off and LCD
is blank.
No beep, power-on indicator turns on and LCD
is blank.
No beep, power-on indicator turns on and LCD
is blank. But you can see POST on an external
CRT.
No beep, power-on indicator turns on and a
blinking cursor shown on LCD during POST.
n Test the power source (battery pack and power adapter). See “Testing
the power system” on page 118.
n Make sure that every connector is connected tightly and correctly.
n Reconnect the SO-DIMM.
n Test or replace the LED board.
n Test or replace the system board.
n Test the power source (battery pack and power adapter). See “Testing
the power system” on page 118.
n Reconnect the LCD connector
n Check the hard disk drive.
n Check the LCD inverter ID.
n Check the LCD cable.
n Test or replace the LCD inverter.
n Test or replace the LCD.
n Test or replace the system board.
n Reconnect the LCD connectors.
n Check the LCD inverter ID.
n Check the LCD cable.
n Test or replace the LCD inverter.
n Test or replace the LCD.
n Test or replace the system board.
n Make sure that every connector is connected tightly and correctly.
n Test or replace the system board.
No beep during POST but system runs correctly. n Test or replace the speaker.
n Test or replace the system board.
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