User Manual

53
_MAN40-A (CMU040-A3)
TROUBLESHOOTING CHART
Problems Possible Causes and Solutions
The screen is empty and the
keyboard does not beep
when a key is pressed.
The unit is possibly turned off. Press the
key to restart it. (Refer to item “Turning The
Unit On”).
The unit does not turn on
when pressing the
key.
Batteries are possibly too low. Connect the
unit to a charger. The unit should turn on
after a few seconds and restart the operating
system.
The PC Card does not
connect in the PCMCIA
socket.
The PC-Card is possibly inserted the wrong
way. Refer to USE OF PC-CARD.
Display contrast is weak or
display background very
dark
The display contrast is incorrectly set. Use
the contrast keys to adjust the display. Refer
to “Display background and contrast,
additional adjustments”.
The display cannot be adjusted correctly if
the unit is used outside of its temperature
limits.
The unit does not shutoff
automatically or manually.
The unit is possibly connected to a charger or
the shutoff feature is not set properly.
FIGURE 18
TROUBLESHOOTING CHARTS