EXFO FTB-1 - Manual (Page 207)

Troubleshooting
FTB-1 197
Solving Common Problems
One of the applications
is not responding.
Press and hold it down until the
shutdown menu appears, then select
Turn off. Turn the unit on again to
reset it.
Impossible to calibrate
the touchscreen via the
calibration application
in System Settings.
Screen calibration is
very poor.

Press and hold it down until
the shutdown menu appears,
then select Turn off.

Turn on the unit.
While the system is displaying the
boot menu (3 seconds), press the
down arrow from the unit’s
keypad to select the emergency
system tools operation mode.
OR
Press the ARROW DOWN key on
the keyboard (if you have
connected one).

Press from the
unit’s keypad or ENTER on your
keyboard to confirm your choice.

Press to start the
screen calibration.
Unit’s operating time is
reduced.
Battery is probably
worn out.
Replace the battery.
Battery was not fully
charged.

Charge the battery.

Perform a complete battery
calibration cycle
a
.
Battery indicator
remains low after a full
charge.
Battery is not
completely charged.
Perform a complete battery
calibration cycle
a
.
Problem Cause Solution