Diagnostics - NEC VERSA UltraLite Service And Reference Manual

Number of
Beeps
10
11

Diagnostics

This section summarizes problems that might develop during notebook operation and lists
suggested corrective actions.
Problem or Symptoms
No power
Power LED is on but no
display and notebook does
not turn on
Display on the LCD can not
be read
LCD screen does not show
display
7-6 Troubleshooting
Beep Codes
Error
CMOS Shutdown
Register Read/Write
Error
Cache Error/External
Cache Bad
Diagnostics
Corrective Actions
Check that the AC adapter is plugged into the power port of the
notebook. Also, check that the AC adapter is plugged into a properly
grounded and working AC power outlet.
Check that the secondary battery is the correct type, charged properly,
and is inserted correctly.
Check if the memory module is inserted properly.
Check that the CPU is inserted properly.
Replace the memory module, CPU, or main board.
Adjust the brightness.
Check if the installed driver is correct and resolution is set according to
the LCD size and type.
Check if the LCD panel is connected properly.
Replace the main board.
Check if the power saving mode is activated. Press any key or press
the power button to resume operation and display.
Check if the display output is switched to the external monitor.
Check if there is power.
Check if the LCD panel is disconnected or loose.
Replace the LCD panel.
Description
The shutdown register for CMOS
RAM failed.
The external cache is faulty.