4
TS44DLX Deluxe Test Set
Users Guide
When the LO BATT LED begins flashing, the battery,
has anywhere from several hours to several days of life
remaining depending on how often the speaker is
used.
See “Replacing the Battery” on page 15 for instructions
on changing the battery.
If the test set stops working, remove the 9 V battery,
wait at least 40 seconds, then replace the battery. This
resets the test set. Use the same battery if you know it
is good or use a new battery if you are not sure. If it still
doesn’t work, contact Fluke Networks Technical
Support.
Speaker and Speakerphone Microphone
See Figure 1.
The speaker and speakerphone microphone are
located on the keypad side of the test set. The speaker
draws more current than any other circuit in the test
set. The battery lasts longer if the speaker is used in
moderation.
Audio Controls
See Figure 2.
The three audio control keys are located on the inside
handle of the test set between the handset receiver
and the handset microphone. These controls let the
operator switch between the handset and speaker-
phone, mute the active microphone, and control the
volume of the received audio signal. Table 1 describes
the audio control keys.
W
Warning
Never hold the speaker against your ear
when it is on, or when turning it on or off.
Sounds emitted by the speaker can be loud
enough to damage your hearing.
Keypad Controls and Indicators
See Figure 3.
The keypad has 19 keys that are recessed into the
housing. The recessed bezel protects the keypad and
helps prevent accidental key presses. Table 2 describes
the keys and other indicators on the test set.
bfp02.eps
Figure 2. Audio Control Keys
