Trouble Shooting - Minelab F3 Operation Manual

5.2 Trouble Shooting. The following table provides several
trouble shooting procedures in response to a variety of possible
problems:
Problem
F3 will not switch On
After switching On there is
a very loud noise
After switching On the
Threshold Tone varies in
pitch and volume with the
coil stationary
There is no sound from the
Earset
There is no sound from the
Speaker
Cannot hear the Test
Piece with the Black
Sensitivity End Cap
Recommended Procedure
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)
1. Ensure Lower Shaft is extended at least
100mm (4ins) beyond the Middle Shaft - OR
2. Conduct Audio Reset
1. Conduct Noise Cancel
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)
1. Switch Off and On - or
2. Disconnect Earset, Switch Off and On
1. Ensure that the detector has been turned
on for at least 30 seconds.
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F3 Operations Manual