EXFO MaxTester Series - Manual (Page 148)

Troubleshooting
138 MaxTester Series
Solving Common Problems
Unit screen
is dark.
Unit’s backlight is set
to minimum value.
Modify brightness (see Adjusting
Brightness on page 39).
Battery is discharged
and unit has shut
down.

Charge the battery.

Connect the unit to an external
power supply using the AC
adapter/charger (or the car outlet
adapter).
External keyboard is not
working.
External keyboard has
not been detected.

Disconnect the keyboard, and
then connect it again.

Turn off the unit, connect the
keyboard, and turn on the unit.
The USB memory key is
not working.
The USB memory key
has not been detected.
Disconnect the memory key, and then
connect it again.
The file system used
on the memory key
may not be supported.
The supported file
systems are: FAT,
FAT32, and exFAT. The
NTFS file system is not
supported.
To avoid loosing data, proceed as
follows:

On a computer, connect the USB
memory key, and then back up
any important data that you want
to keep.

Format the USB memory key to
one of the supported file system
(FAT, FAT32,or exFAT).
The USB memory key should now be
detected properly.
The keyboard, mouse or
USB memory key no
longer seem to be
detected properly after
browsing the
Maintenance and
Recovery menu.
The maintenance
mode has been
enabled by mistake.
Restart your unit.
Problem Cause Solution