Minelab MF5 Service Manual
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Minelab MF5 Service Manual

Metal mine detector
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MF5 Service Manual
MF5
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F3 Metal Mine Detector
Metal Mine Detector

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Summary of Contents for Minelab MF5

  • Page 1 MF5 Service Manual _______________________________________________________________________________________________________________________ F3 Metal Mine Detector Metal Mine Detector...
  • Page 2 Minelab Electronics Pty Ltd of 2 Second Avenue, Mawson Lakes SA 5095, Australia. Patents and Trademarks Patents may apply to this product: www.minelab.com/patents Minelab® and MDS-5® are trademarks of Minelab Electronics Pty. Ltd...

  • Page 3: Table Of Contents

    MF5 Service Manual _______________________________________________________________________________________________________________________ Contents Introduction ............................5 Mechanical & Functional Testing ......................6 Mechanical Testing ........................8 Function Testing ..........................8 Disassembly & Reassembly Procedures ....................14 Open the Detector Chassis ......................15 Close the Detector Chassis ......................20 Main Printed Circuit Board (PCB) ....................
  • Page 4 MF5 Service Manual _____________________________________________________________________________________________________________________ Software Upgrade..........................90 Circuit Schematics MF5 ........................92 Contact Minelab ..........................93...

  • Page 5: Introduction

    3004-0300 Coil Connector Loom MF5 Servicing the MF5 can be conducted in the field (under clean and dry conditions) or at local service centres. No special tools are required but it is recommended that the MF5 Service Tool Kit be used.

  • Page 6: Mechanical & Functional Testing

    2 Mechanical & Functional Testing The detector set should be regularly checked to ensure all parts and accessories are present and in good working order. The MF5 is supplied as a mine detecting set comprising the following items. Figure 1: MF5 Detecting Set...
  • Page 7 If a detector fails ANY of the mechanical or functional tests, it must not be used in operations. Battery Compartment Earset Connector Main Body Controls Shaft Hinge Upper Shaft Upper Camlock Middle Shaft Lower Camlock Lower Shaft Coil Coil Pivot Assembly Handle Assembly Test Piece Armrest and Strap Figure 2: Major component parts of the MF5...

  • Page 8: Mechanical Testing

    Function Testing Function testing is used to confirm the serviceability of an MF5 before and after repair. The MF5 must pass all functional tests to be considered serviceable and ready for operations. Functional testing requires a ground balance test piece. The ground balance test piece simulates mineralised ground which results in an alarm from the detector.
  • Page 9 During noise cancel the MF5 scans the environment searching for the source of any electrical interference (noise). At the completion of Noise Cancel the detector will automatically select operating frequencies that have reduced interference.
  • Page 10 Plug the earset into the detector. • Switch on the detector and confirm the detection tone or heartbeat is audible using the earset. • The MF5 will always provide audio to a connected Earset regardless of the user selected options/controls. Figure 5: Connect the Earset...
  • Page 11 • Turn on the detector. • The MF5 will disable the LEDs by default. Short press the LED Display button to enable the LEDs. Short press again to disable the LEDs. • If LEDs are not visible, long press the LED Display button to toggle LEDs between IR (infrared, for use with night vision imaging systems) and visible light.
  • Page 12 Earset. • The MF5 will stay in tactical mode even if it is turned off and on or batteries are removed. It is possible to turn LED display, main speaker and vibration on and off whilst in tactical mode.
  • Page 13 If the test piece is still not heard, refer to section Fault Finding Procedures. Provided the MF5 passes all function tests it is serviceable and ready for operations If the detector does not pass all functional tests refer to section Fault Finding Procedures...

  • Page 14: Disassembly & Reassembly Procedures

    Section Mechanical & Functional Testing must be completed. The MF5 can be repaired and maintained with standard tools. No special tools are required. The following tools may be required to service and support the MF5: • Hex key driver (Allen key) 3mm •...

  • Page 15: Open The Detector Chassis

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.1 Open the Detector Chassis In order to conduct repairs and replace many of the parts of this detector, the first step will often be to open the detector chassis. Many sections of this manual will refer to this section.
  • Page 16 MF5 Service Manual _________________________________________________________________________________________________________________ Coil Connector Figure 8: Remove Cover Cable. • Unscrew and disconnect the coil connector. • Remove the two (2) screws (M4x35mm) from the shaft hinge. Figure 9: Disconnect Coil Connector and Remove Screws from Hinge •...
  • Page 17 Figure 11: Torx T20 Bolts with O ring seal Note Four (4) Screws in the Chassis of the MF5 must have an O-ring on the Screw to seal (make watertight) the detector. All Screws with an O-ring are Torx T20 and not Allen key (Hex socket).
  • Page 18 MF5 Service Manual ________________________________________________________________________________________________________________ Figure 12: Remove four (4) Screws Torx T20 • Using fingers gently separate the left and right chassis halves. The battery end of the detector will come away easily. The shaft end is held by two (2) locating pins and will require more force to separate.
  • Page 19 MF5 Service Manual _________________________________________________________________________________________________________________ Speaker Speaker Connector Figure 13: Disconnect the Speaker. • Remove the upper shaft from the detector body. Figure 14: Remove Shafts The detector chassis is now opened revealing the internal components, which can now be replaced as required.

  • Page 20: Close The Detector Chassis

    MF5 Service Manual ________________________________________________________________________________________________________________ Figure 15: Open Detector Chassis 3.2 Close the Detector Chassis Required Tools. • Hex key driver (Allen key) 3mm • Torx driver T20 • Silicon Grease The following procedure outlines the steps involved in closing and resealing the detector chassis: •...
  • Page 21 MF5 Service Manual _________________________________________________________________________________________________________________ • Carefully turn the detector over so that it is on its right side. Check the coil connector nut is tight. • Attach the coil connector to the socket and tighten the coil connector as tight as possible with fingers.
  • Page 22 MF5 Service Manual _________________________________________________________________________________________________________________ • Ensure the battery lid is closed. • Check the Seal Chassis (O-ring) in the detector body is clean, lightly greased and correctly positioned. • Connect the speaker to the PCB. Check all other connectors and cables are connected.
  • Page 23 MF5 Service Manual _________________________________________________________________________________________________________________ Coil Cable Must Not be above these screw bosses Figure 20: Coil Cable Position in Hinge • Ease the two halves of the detector together. Align the detector chassis right side with the locating pins either side of the shaft hinge.
  • Page 24 MF5 Service Manual ________________________________________________________________________________________________________________ • Starting with the two (2) long (M4x35mm) screws fit the four (4) remaining screws into the right side of the detector. • Tighten all eight (8) screws. Figure 22: Insert four screws • Identify the four (4) Torx (star) screws and check they all have O-rings fitted. Insert the four (4) Torx screws into the right side of the detector.
  • Page 25 MF5 Service Manual _________________________________________________________________________________________________________________ • Place the detector on its right side. Remove the Cover Cable then insert and tighten the two (2) screws (M4x35mm) into the shaft hinge. Figure 24: Insert two (2) screws (35mm length) • Confirm coil connector is tight by turning the knurled connector collar as tight as possible by hand (clockwise no tools).
  • Page 26 MF5 Service Manual ________________________________________________________________________________________________________________ Coil Connector Connector lock nut 18mm Figure 25: Check coil connector, Attach Cover Cable. • Reattach the armrest with four (4) screws (12mm). Figure 26: Attach Armrest • Check all moving parts for correct operation. •...

  • Page 27: Main Printed Circuit Board (Pcb)

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.3 Main Printed Circuit Board (PCB) The Main PCB kit 3004-0294 is available as a spare part, this section of the manual describes the procedure for replacing the Main PCB. Figure 27: Main PCB kit Item MRN...

  • Page 28: Remove The Main Pcb

    MF5 Service Manual ________________________________________________________________________________________________________________ The connections to the Main PCB are show in the following figure. 4 Vibration Motor 5 Earset 3 Handle UI 2 Battery 1 Speaker 5 Connector Coil 7 User Interface 8 Coil Keypad Transmitter 6 Sensitivity...
  • Page 29 MF5 Service Manual _________________________________________________________________________________________________________________ • Disconnect the battery connector from the Main PCB. Battery Connector Figure 30: Unplug Battery Connector • Unplug the Wiring Loom Handle from the Main PCB. • Unplug the Vibration Motor from the Main PCB. •...
  • Page 30 MF5 Service Manual _________________________________________________________________________________________________________________ • Unplug the Wiring Loom Earset (connects earset connector to the Main PCB). Figure 32: Disconnect Wiring Loom earset • Unplug the Switch Sensitivity by first opening the locking bail on the connector on the main...
  • Page 31 MF5 Service Manual _________________________________________________________________________________________________________________ Locked Locking bail Open Cable to Keypad Unplugged Cable to Sensitivity Switch Figure 33: Unplug Switch Sensitivity and User Interface Secondary (keypad) • Remove the screw from the Coil Transmitter Connector. Unplug the Coil Transmitter connector by lifting it off the Main PCB. The Coil Transmitter Connector is part of the Coil Connector Loom (3004-0300) •...
  • Page 32 MF5 Service Manual ________________________________________________________________________________________________________________ Coil Receiver connector Coil Transmitter connector Figure 34: Unplug Coil Transmitter and Receiver Connectors from the Main PCB • Remove the three screws that hold the main PCB in place. Figure 35: Remove main PCB mounting screws (3).

  • Page 33: Main Pcb Assembly

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.3.2 Main PCB Assembly Required tools. • Hex key driver (Allen key) 2.5mm • Hex key driver (Allen key) 1.5mm The Main PCB can be replace by first opening the detector chassis as described in section...
  • Page 34 MF5 Service Manual _________________________________________________________________________________________________________________ • Insert the three (3) mounting screws (M3x20mm) into the Main PCB. The two uppermost (of three) screws require a nylon washer, the lower screw closest to the coil connector doesn’t require a washer. Nylon Washer...
  • Page 35 MF5 Service Manual _________________________________________________________________________________________________________________ • Connect the flat ribbon cables from the Switch Sensitivity and the User Interface to the connectors on the Main PCB. First open the connector locking bail (slide out) then firmly insert the ribbon cable then close the connector locking bail.
  • Page 36 MF5 Service Manual ________________________________________________________________________________________________________________ • Connect the Coil Receiver Connector to the Main PCB. Screw the Coil Receiver Connector to the Main PCB using the M2x5mm screw (31-22005-980). Apply a small amount of threadlocker (Loctite 222) to the thread of the M2x5mm screw...
  • Page 37 • Having completed the previous steps the Main PCB is now installed and connected into the MF5. To complete the assembly of the detector refer to section Closing the Detector Body.

  • Page 38: Coil

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.4 Coil 3004-0290 Coil Kit MF5 is a spare parts kit that contains the coil and associated parts. The parts of the Coil Kit are shown in the following figure. Figure 44: Coil Parts Item Part Number...

  • Page 39: Remove The Coil

    Required Tools: • Hex key driver (Allen key) 3mm • Flat tip screw driver To remove the Coil from the MF5: • Prepare a clean well lit area in which to work. • Switch off the detector and remove the batteries.
  • Page 40 MF5 Service Manual _________________________________________________________________________________________________________________ • Remove the Pin Coil Cable from the upper end of the upper shaft. Turn the pin clockwise (90deg) then pull to remove. Figure 47: Remove Pin Coil Cable from the upper shaft • Remove the two (2) screws (Nylon M6x14mm) from the Cap Shaft on the lower shaft.
  • Page 41 MF5 Service Manual _________________________________________________________________________________________________________________ • Slide the coil out and off the lower shaft, exposing the coil cable. Figure 49: Slide the Coil off the Shaft • Push the coil cable connector into the shaft hinge whilst gently pulling the coil cable out of the end of the lower shaft.

  • Page 42: Coil Pivot

    Figure 51: Coil Pivot Kit Parts Item Part Number Description 3004-0291 Coil Pivot Kit 4003-0121 Screw Thumb Nylon 1/4BSW 4003-0126 Screw Nylon M6x27 4311-0114 Pivot Coil Yoke MF5 4311-0117-001 Pivot Lower Shaft 0703-0204 Cap Shaft 4003-0124 Screw Nylon M6x14 30-29011-514 O-Ring 25mm IDx2 4308-0030...
  • Page 43 MF5 Service Manual _________________________________________________________________________________________________________________ • Remove the Thumb Screw (Screw Thumb Nylon 1/4BSW) and screw (Nylon M6x27) from the Coil Pivot. Figure 52: Remove two (2) Screws NOTE The two (2) screws each adjust the friction of the coil pivot movement.
  • Page 44 MF5 Service Manual _________________________________________________________________________________________________________________ • Separate the pivot lower shaft from the pivot coil yoke. Gently feed the coil cable through the pivot lower shaft removing the pivot shaft from the coil cable. Do not over stretch the coil cable.
  • Page 45 MF5 Service Manual _________________________________________________________________________________________________________________ Coil Pivot Kit Figure 56: Coil Pivot Assembly...

  • Page 46: Attach The Coil Pivot

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.4.4 Attach the Coil Pivot Required Tools: • Flat tip screw driver To attach the coil pivot: • Attach the O-ring to the coil. The O ring needs to be clean and positioned in the grove around the cable entry point of the coil.
  • Page 47 MF5 Service Manual _________________________________________________________________________________________________________________ • Feed the Pivot Coil Yoke onto the coil cable and carefully move the Pivot Coil Yoke along the coil cable to the coil. Do not attach the Pivot Coil Yoke to the coil yet. •...
  • Page 48 MF5 Service Manual _________________________________________________________________________________________________________________ Figure 60: Align Pivot before assembly • Push the Pivot assembly onto the coil. A flat tip screw driver can be used to prise apart the Pivot Coil Yoke so that it fits over the O ring without causing damage to the O ring.

  • Page 49: Connect The Coil

    Attach the coil to the shaft then fit onto the detector as described in Section Connect the Coil. Complete the mechanical and function testing of the metal detector (described in this manual) before returning the MF5 to operations. 3.4.5 Connect the Coil Required Tools: •...
  • Page 50 MF5 Service Manual ________________________________________________________________________________________________________________ • Remove the screw from the Cover Shaft Hinge then remove the Cover from the shafts. Figure 63: Remove the Cover Shaft Hinge from the shaft. • Push the coil connector into the bottom of the lower shaft, thread the coil cable through the shafts and out of the hinge at the top of the upper shaft.
  • Page 51 MF5 Service Manual _________________________________________________________________________________________________________________ • Push the Pin Coil Cable into the shaft and inside the spirals of the coil cable. Turn the pin counter clockwise to lock it into place. Cable held firm by pin inside cable spirals Locked Figure 65: Insert Pin Coil Cable.
  • Page 52 ________________________________________________________________________________________________________________ Figure 67: Attach shafts. • Align then connect the coil cable to the MF5 detector, turn the connector locking collar clockwise until finger tight. Close the detector body and complete the detector assembly as described in Section Closing the Detector Body.

  • Page 53: Shafts

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.5 Shafts The 3004-0292 Shaft Kit MF5 is available as a spare part kit, the parts of the Shaft Kit are shown in the following table. Figure 68: Shaft. Item Part Number Description 3004-0292 Shaft Kit MF5...

  • Page 54: Replacing A Camlock

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.5.1 Replacing a Camlock 3004-0047 Camlock kit is available as a spare part and includes the following items. Figure 69: Camlock Kit Item Description 3004-0047 Camlock Kit 4308-0014 Pin Camlock Lever 8008-0062 Pressure Block Camlock 8008-0061 Camlock Lever Table 6: Camlock Kit.
  • Page 55 MF5 Service Manual _________________________________________________________________________________________________________________ • Once the Pin Camlock Lever has been removed the Pressure Block Camlock can be removed and replaced if needed. NOTE When the camlocks are closed they must hold the shafts firmly with no slippage. If the camlock does not hold the shafts firmly in place, then pressure blocks should be replaced.

  • Page 56: Remove The Shafts

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.5.2 Remove the Shafts Required Tools: • Flat tip screw driver. To remove the shafts from the detector firstly open the detector chassis as described in Section Open the Detector Chassis. Once completed: • Lift the shafts clear of the detector.

  • Page 57: Attach The Shafts

    Figure 75 Remove Coil Cable from Shafts The Shafts have now been removed from the MF5. 3.5.3 Attach the Shafts The detector chassis needs to be opened in order to fit the shafts to the detector, refer to...

  • Page 58: Handle

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.6 Handle The Handle kit 3004-0293 is a spare part, the following figure illustrates the major parts of the handle. Figure 76: Handle Parts Item Part Number Description 3004-0293 Handle Kit 9511-0278 Wiring Loom UI Handle 31-03512-980 Screw 3.5x12 skt head...

  • Page 59: Removing The Handle

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.6.1 Removing the Handle No tools required to remove the handle once the detector chassis is opened. The detector body must first be opened to remove the handle as described in Section Open the Detector Chassis Figure 77: Disconnect Wiring Loom Handle •...

  • Page 60: Connecting The Handle

    Pass the wiring loom through the top of the detector chassis and lift the handle out of the detector. The handle has now been removed from the MF5 and can be replaced if required. 3.6.2 Connecting the Handle To connect the handle the detector chassis must be opened as described in Section...
  • Page 61 MF5 Service Manual _________________________________________________________________________________________________________________ • Thread the Wiring Loom Handle into the detector body. Pin Handle Pivot Figure 79: Thread the Wiring Loom Handle • Push the handle onto the Pin Handle Pivot. • Connect the Spring Latch Hinge to the Latch Assembly.
  • Page 62 MF5 Service Manual _________________________________________________________________________________________________________________ Figure 81: Connect Wiring Loom Handle Assemble the detector and close the detector body as described in Section Close the Detector Chassis.

  • Page 63: Armrest

    MF5 Service Manual _________________________________________________________________________________________________________________ 3.7 Armrest The Armrest is available as a spare part, the following table shows all the parts of the Armrest. Figure 82: Armrest Item Part Number Description 3004-0048 Armrest Kit with Slide 8001-0022 Armrest Flap Upper Right...

  • Page 64: Replace The Armrest

    MF5 Service Manual _________________________________________________________________________________________________________________ The Armrest Slide Assembly 3004-0308 is available as a spare part, the following figure shows that parts of the Armrest Slide Assembly Figure 83: Armrest Slide Assembly Item Description 3004-0308 Armrest Slide Assembly 4308-0021 Pin Armrest Slide...
  • Page 65 MF5 Service Manual _________________________________________________________________________________________________________________ • Remove the four (4) screws from the top of the armrest and remove the armrest. Figure 84: Armrest replacement. The armrest can now be replaced as an assembly. If the armrest slide assembly must also be replaced, then the detector body must be opened.

  • Page 66: Battery Compartment

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.8 Battery Compartment The Battery Compartment kit and the Battery Lid are available as a spare parts kit. The following table shows the parts of the Battery Compartment. Figure 85: Battery Compartment Item Part Number Description...
  • Page 67 MF5 Service Manual _________________________________________________________________________________________________________________ • Slide the battery compartment rearward (away from the main PCB), threading the battery connector out of the detector body. Battery Connector Figure 86: Replace Battery Compartment • Check that the Battery Compartment has an O ring positioned where the battery cables leave the battery compartment and entre the detectors sealed enclosure.

  • Page 68: Battery Lid

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.8.2 Battery Lid The Battery Lid kit 3004-0052 is available as a spare part, the parts of the battery lid are show in the following table. Figure 87: Battery Lid Item Part Number Description 3004-0052 Battery Lid kit...

  • Page 69: Detector Chassis

    The following assemblies within the detector chassis are available as spare parts: 3004-0295 Wiring Loom Handle Kit. 3004-0057 Speaker Kit 3004-0296 Switch kit Sensitivity MF5 3004-0297 Wiring Loom Earset kit MF5 3004-0298 Vibration Motor kit MF5 3004-0300 Coil Connector Loom MF5 3004-0299 User Interface Chassis MF5...

  • Page 70: Switch Sensitivity Replacement

    O ring Figure 89: Sensitivity Switch parts Item Part Number Description 3004-0296 Switch Kit Sensitivity MF5 5909-0328 Switch with Cable includes washer and nut 4006-0047 Spring Knob Lift to Turn 4305-0032 Knob Lift to Turn...
  • Page 71 MF5 Service Manual _________________________________________________________________________________________________________________ Locked Connector Sensitivity Switch Locking bail Open Unplugged Sensitivity Switch Figure 90: Sensitivity switch connector • Lay the detector body on its right side with the Switch Sensitivity facing upwards. Set the Switch Sensitivity control to 3 IED.
  • Page 72 MF5 Service Manual _________________________________________________________________________________________________________________ Figure 91: Remove Sensitivity Knob The Switch Sensitivity can now be removed from the chassis of the detector and replaced if required. NOTE Use care handling the flexible ribbon cable. These are internal components and will be easily damaged if they are forced or misaligned.
  • Page 73 MF5 Service Manual _________________________________________________________________________________________________________________ • Insert the Switch Sensitivity into the detector body; attach the lock washer and 10mm nut. • Attach the Switch knob then the spring followed by the bush and screw to the control switch. The Screw M3x6 should have a small amount of threadlocker (loctite 222) applied to the thread of the screw before insertion.

  • Page 74: Speaker Replacement

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.9.2 Speaker Replacement The speaker is a spare part kit, 3004-0057 Speaker Kit. The following table illustrates the major parts of the speaker kit. Figure 93: Speaker kit Item Part Number Description 3004-0057 Speaker Kit 9511-0183...

  • Page 75: Wiring Loom Earset Replacement

    Body. 3.9.3 Wiring Loom Earset Replacement The Wiring Loom Earset kit is available as a spare part, 3004-0297 Wiring Loom Earset Kit MF5 includes all parts shown in the following table. Figure 95: Wiring Loom Earset kit Item Part Number...

  • Page 76: Wiring Loom Handle Kit Replacement

    MF5 Service Manual ________________________________________________________________________________________________________________ Required Tools: • Spanner 13mm Open the detector body and remove the Main PCB as described in Section Open the Detector Chassis Remove the Main PCB. Once completed: • Disconnect the Wiring Loom Earset from the PCB.
  • Page 77 MF5 Service Manual _________________________________________________________________________________________________________________ Required tools: • Screw driver flat tip. • Silicon Grease Open the detector body as described in Section Open the Detector Chassis. Then remove the Wiring Loom Handle as follows: • Disconnect the Wiring Loom Handle socket from the plug (handle wiring loom).

  • Page 78: Replace Vibration Motor

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.9.5 Replace Vibration Motor The Vibration Motor is a spare part, 3004-0298 Vibration Motor Kit MF5. Figure 100: Vibration Motor Item Part Number Description 3004-0298 Vibration Motor kit MF5 0703-0434 Clamp, vibration motor MF5 9511-0265 Vibration Motor Assembly 31-03520-901 Screw, 3.5x20 Pt PAN MS ZN SKT HD(Torx 10)
  • Page 79 MF5 Service Manual _________________________________________________________________________________________________________________ 4. Screw, 3.5x20 2. Vibration Torx T10 Motor 3. Clamp Vibration Motor Connector Vibration Motor Figure 101: Vibration Motor Parts • Unplug the Vibration Motor from the connector on the Main PCB. • Remove the Screw 3.5x20 (Torx T10) from the clamp then remove the clamp.

  • Page 80: Coil Connector Loom

    MF5 Service Manual ________________________________________________________________________________________________________________ 3.9.6 Coil Connector Loom 3004-0300 Coil Connector Loom MF5 is a Spare Part, the following table shows the parts of the Coil Connector Loom. Figure 103: Coil Connector Loom Item MRN Description 3004-0300 Coil Connector Loom MF5...

  • Page 81: User Interface Chassis Kit

    Replace the Coil Connector Loom in the reverse order to the removal of the Coil Connector Loom. 3.9.7 User Interface Chassis Kit 3004-0299 User Interface Chassis Kit MF5 is a spare part. The following table shows the parts of the User Interface Chassis. Figure 105: User Interface Chassis...

  • Page 82: Detector Chassis Parts

    Silicon Rubber. Minelab recommend that customer wishing to replace the User Interface (keypad) should purchase the complete User Interface Chassis as this is assembled sealed and tested.
  • Page 83 Screw M4x20 Skt Cap 31-24035-980 Screw M4x35 Skt Cap 31-24035-987 Screw M4x35 Torx with Seal 31-24020-987 Screw M4x20 Torx with Seal Table 20: Screws. Figure 108: Chassis Right MF5 Item Part Number Description 0703-0433-001 Chassis Right MF5 30-43000-004 Vent, Temish Fabric...
  • Page 84 MF5 Service Manual ________________________________________________________________________________________________________________ Figure 109: Parts MF5 Item Part Number Description 0304-0027 Rod, Handle Slide 4309-0068 Seal, Chassis 4007-0009 Latch Assembly 0701-0147 Shield Plate MF5 Table 22: Parts MF5.

  • Page 85: Fault Finding Procedures

    A functional test failure can generally be repaired by replacing one of the sub- assemblies (Spare Parts Kits) of the detector. The MF5 is designed so that Spare Parts Kits 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.
  • Page 86 MF5 Service Manual ________________________________________________________________________________________________________________ • After working in hot Factory Reset conditions, detector • Check coil plug is tight makes a loud noise • Replace coil • Replace main PCB • Ground Balance does not Check area is metal free work •...
  • Page 87 MF5 Service Manual _________________________________________________________________________________________________________________ • Water found inside Clean battery lid and apply silicone grease to battery lid battery pack O-ring • Replace the O ring on the battery lid • Camlocks will not stop Replace camlock kit shafts from collapsing •...

  • Page 88: Pressure Test

    62mm long, at one end it has a M4 screw thread with 32mm long (by 4mm) shaft, this screws into the MF5 in place of a screw M4x35 Torx T20 with O ring. The other end of the Seal Checker has a 1/8BSPT female thread into which a 1/8BSPT hose tail can be attached for connection to a hose and vacuum pump.
  • Page 89 Conduct a pressure test on the MF5 as follows: • On the right side of the MF5 remove the Torx T20 screw just below the speaker. • Insert the Service seal checker ‘plug’ into the Torx T20 screw hole just below the speaker.
  • Page 90 Check seals and O rings for possible leaks and retest. • Remove the Service Seal Check Plug from the MF5, insert the Torx T20 screw into the detector making sure it has an O ring (on the screw). Software Upgrade.
  • Page 91 • When the upgrade is complete the MF5 will turn off and back on. The MUU will prompt the operator to disconnect the detector and quit the application. Figure 114: Screen shot, MUU, Detector is up to date.
  • Page 92 MF5 Service Manual ________________________________________________________________________________________________________________ 7 Circuit Schematics MF5 Figure 115: Schematic circuit of the MF5...
  • Page 93 MF5 Service Manual _________________________________________________________________________________________________________________ 8 Contact Minelab Support and help with Minelab metal detectors is available through the following Minelab contacts: Minelab Electronics Pty. Ltd. Email countermine@minelab.com.au Phone +61 8238 0888 Webpage www.minelab.com/countermine Part Number: 4904-0015-2...

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