Fault Finding Procedures; Introduction; Trouble Shooting Table - Minelab F3 Service Manual

F3 Service Manual

4 Fault Finding Procedures

4.1

Introduction.

A functional test failure (section
replacing one or all of the following line replaceable units:

Coil

Wiring Loom

Electronics Pack
The F3 is designed so that line replaceable units can be exchanged between detectors
without the need to calibrate. This means that where spare parts are not available
and more than one detector is faulty, then parts from one detector can be used to
make another serviceable. For example, if detector # 1 has an unserviceable coil and
detector # 2 has an unserviceable electronics pack, then the coil from detector # 2 can
replace the coil on detector # 1 thereby producing a serviceable detector.
Whenever a line replaceable unit is exchanged, follow the applicable procedure
described in Section 3.
Where the source of a fault is unknown, due to the ease of replacement it is
recommended that line replaceable units be exchanged in the following sequence:

Electronics Pack

Coil

Wiring Loom
4.2

Trouble Shooting Table.

The following table identifies a number of faults and provides recommended solutions.
The suggested solutions should be investigated in the order they are listed.
Problem
F3 will not switch on
F3 will not switch off
3.2. Functional Testing) can generally be repaired by
Recommended Solutions

check batteries are installed correctly

replace batteries with fresh batteries

remove and refit battery pack

replace battery pack

replace wiring loom

replace electronics pack

remove battery pack and refit

check magnet on ON/OFF slide has not been
dislodged and connected to the wiring loom

replace wiring loom

replace electronics pack
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