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Fluke 77 Series III Back Panel Replacement

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Wat je nodig hebt

  1. Fluke 77 Series III Back Panel Replacement, Front Panel: stap 1, afbeelding 1 van 1
    • Be sure any test leads are out and the multimeter is off before opening the device.

    • Turn the multimeter so it is display side down.

    • Lift up the back stand of the device by putting your thumb in the curved well at the bottom of the device, so you have access to the two covered screws below.

  2. Fluke 77 Series III Back Panel Replacement: stap 2, afbeelding 1 van 1
    • Use your Phillips #2 Screwdriver to remove the four black 21 mm Phillips #2 screws.

  3. Fluke 77 Series III Back Panel Replacement: stap 3, afbeelding 1 van 2 Fluke 77 Series III Back Panel Replacement: stap 3, afbeelding 2 van 2
    • Turn the Fluke 77 Series III Multimeter back over so that it is display side up.

    • Pry the front panel from the back panel at the seam.

    • If the front panel does not come off easily, move a plastic opening tool along the seam until the panels separate completely.

  4. Fluke 77 Series III Back Panel Replacement, Battery: stap 4, afbeelding 1 van 2 Fluke 77 Series III Back Panel Replacement, Battery: stap 4, afbeelding 2 van 2
    • When doing this next step, make sure to remove the battery slowly, so you don't damage the wires connecting the battery to the device.

    • Locate the 9V battery in the lower right corner of the device.

    • Pull the battery out of its terminal.

  5. Fluke 77 Series III Back Panel Replacement: stap 5, afbeelding 1 van 2 Fluke 77 Series III Back Panel Replacement: stap 5, afbeelding 2 van 2
    • Only pull on the metal snaps and battery. Pulling the cords may damage them.

    • Detach the two metal snaps from the battery.

  6. Fluke 77 Series III Back Panel Replacement, Fuse: stap 6, afbeelding 1 van 2 Fluke 77 Series III Back Panel Replacement, Fuse: stap 6, afbeelding 2 van 2
    • Replace a fuse only with a fuse identical in type, voltage rating, and current rating as specified by the back panel fuse rating label or the Fluke 77 Series III Service Manual. Inserting the wrong replacement fuse could create a fire hazard.

    • Locate the fuses near the bottom left corner inside the device.

    • Take note of which fuses belong in which location before removal. They are NOT interchangeable.

    • The .440 Amp fuse is located in the upper left hand fuse holder.

    • The 11 Amp fuse is located in the lower right hand fuse holder.

    • Lift the rounded edge of the fuse with one finger until that side is completely out of its holder.

  7. Fluke 77 Series III Back Panel Replacement: stap 7, afbeelding 1 van 1
    • Grab the lifted edge of the fuse between your thumb and forefinger and pull it the rest of the way out of the device.

    • The fuse in the upper left corner can be tricky to remove. Use a plastic opening tool if needed.

    • Repeat steps 4 and 5 to remove the other fuse if you are replacing both fuses or if you are replacing a different part further on.

  8. Fluke 77 Series III Back Panel Replacement, Range/Hold Buttons: stap 8, afbeelding 1 van 2 Fluke 77 Series III Back Panel Replacement, Range/Hold Buttons: stap 8, afbeelding 2 van 2
    • Locate the rubber range and hold buttons in the internal assembly. These are found just below the LCD screen on the left hand side.

    • The buttons are attached so they will come out of the multimeter as a single part.

    • Remove the rubber range and hold button part with your thumb and forefinger.

  9. Fluke 77 Series III Back Panel Replacement, Back Panel: stap 9, afbeelding 1 van 1
    • Locate the silver 7 mm screw found underneath the 11A fuse.

    • Using the Phillips #0 Screwdriver, unscrew and remove the silver 7 mm Phillips #0 screw that attaches the back panel to the internal cover.

  10. Fluke 77 Series III Back Panel Replacement: stap 10, afbeelding 1 van 1
    • Lift the grey internal cover out of the back panel.

    • You should now have the grey internal cover that's connected to the PCA circuit board and the plastic back panel in two separate pieces.

Conclusie

To reassemble your device, follow these instructions in reverse order.

Kishan Patel

Lid sinds: 01/31/14

734 Reputatie

3 handleidingen geschreven

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Cal Poly, Team 2-10, Amido Winter 2014 Lid van Cal Poly, Team 2-10, Amido Winter 2014

CPSU-AMIDO-W14S2G10

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