EXFO DC0091A - Manual (Page 3)

DC0091A November 2001 3/3
Note: If all the solutions mentioned above do not seem to work, make sure the
FTB-100/FTB-100B is turned off and cut all power sources (unplug the
power supply and remove the 9 V and main batteries) for 10 seconds.
Then, reinsert the batteries and power up the unit. If the problem persist,
call EXFO.
The 9 V battery must
be replaced regularly.
➤
See. Battery Maintenance
Recommendations on page 1
When pressing the
PUSH button on the
battery, the LEDs do
not light up.
The battery voltage is
below 5.8 V and the
NiMH main battery is
uncalibrated.
➤
Perform a complete battery
recalibration b .
The performance of
the unit degrades
noticeably
OR
The “Storage capacity
is low and may slow
down the operation of
the unit. Please delete
unnecessary
files”message is
displayed on-screen
upon startup.
The internal flash ROM
has less than 512 KB of
free memory left.
➤
Free up more memory in the
FTB-100/FTB-100B’s internal flash
ROM by deleting some stored trace
files or by transferring them to a PC
Card or floppy disk.
a. The screen is only completely dark on the color LCD. On the monochrome LCD, you can always
distinguish the screen, even when the backlight is completely off.
b. A complete battery recalibration consists of a full discharge, immediately followed by a full charge, then
followed by a full discharge.
Problem Cause Solution