F3 Operations Manual
45
5.2 Trouble Shooting. The following table provides several
trouble shooting procedures in response to a variety of possible
problems:
Problem Recommended Procedure
F3 will not switch On 1. Check batteries have been inserted
correctly into the Battery Pack - or
2. Replace batteries - or
3. Remove Battery Pack and reconnect
ensuring battery Lock Lever is locked into
position - or
4. Exchange Battery Packs (if this solves the
problem, the original Battery Pack may be
faulty)
After switching On there is
a very loud noise
1. Ensure Lower Shaft is extended at least
100mm (4ins) beyond the Middle Shaft - OR
2. Conduct Audio Reset
After switching On the
Threshold Tone varies in
pitch and volume with the
coil stationary
1. Conduct Noise Cancel
There is no sound from the
Earset
1. Disconnect and reconnect the Earset - or
2. Try a known serviceable Earset (if this
solves the problem, the original Earset may
be faulty, if this does not solve the problem,
the Earset socket may be faulty)
There is no sound from the
Speaker
1. Switch Off and On - or
2. Disconnect Earset, Switch Off and On
Cannot hear the Test
Piece with the Black
Sensitivity End Cap
1. Ensure that the detector has been turned
on for at least 30 seconds.
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