Minelab F3Ci Service Manual

F3Ci Service Manual
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4 Fault Finding Procedures
4.1 Introduction
a. A functional test failure can generally be repaired by replacing one or more of the line
replaceable units.
b. The F3Ci 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 battery compartment, then the coil from detector # 2 can replace the coil on
detector # 1 thereby producing a serviceable detector.
4.2 Trouble Shooting Table
a. 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 Recommended Solutions
Detector will not switch
on
● check batteries are installed correctly
● replace batteries with fresh batteries
● replace battery compartment
● replace main PCB
Detector will not switch
off
● remove batteries
● replace Main PCB
After switching on the
detector makes no
sound from speaker
● check for tone using the earset, turn LEDs on
● if there is tone through earset – replace the speaker
● if there is no tone through earset – replace main PCB
Ground Balance does
not work
● replace handle
● replace coil
● replace main PCB
Noise Cancel does not
work
(no Noise Cancel tones
emitted)
Note: Noise Cancel may not completely remove the effects of
interference if the source is powerful or in close proximity
● repeat Noise Cancel
● replace handle
● replace main PCB
LEDs do not illuminate ● remove earset
● Turn on the LEDs
● replace handle
● replace main PCB
Cannot hear the Test
Piece
● fit and use an earset
● set sensitivity switch to default 4
● conduct Noise Cancel
● ensure coil plug is firmly connected
● replace main PCB
● replace coil
Start Up tones keep
repeating
● insert new batteries
● replace battery compartment
● replace main PCB

Minelab F3Ci Specifications

General

Brand	Minelab
Model	F3Ci
Category	Metal Detector
Language	English