6-12 Replacing Main Menu Keypad Rubber Membrane – 3-61361 Assembly Removal and Replacement,
6-16 PN: 10580-00307 Rev. D MS20xxC MM
4. Using a small flat blade screwdriver and a small piece of rubber or similar material as a fulcrum,
carefully pry the six (6) Main Menu Keypad Bezel locking tabs free from the case. The following tips help
with the removal process:
• The flat blade screwdriver tip must be less than 3.5 mm (0.13 inch) wide and as thin as possible. If
available, recommended is a screwdriver made of fiberglass or other material that will not scratch
the bezel.
• As each locking tab releases, the bezel comes up a bit.
• The basic technique is to place the protective piece of rubber (or similar material) next to the slot,
press the screwdriver straight in between the case and the bezel, and then gently lever the
screwdriver AWAY from the bezel using the rubber as protection for the case finish.
5. When the six (6) locking tabs are released, lift up the bezel and set it aside.
Replacing Main Menu Keypad Rubber Membrane:
6. Lift the Main Menu Keypad Rubber Membrane out of the case and set it aside, revealing the underlying
Main Menu Keypad Flex PCB.
7. Insert the replacement Main Menu Keypad Rubber Membrane into the case slot, making sure that the
center Membrane latch cutouts correctly match up with the latch slots.
Installing Main Menu Keypad Bezel:
8. Replace the Main Menu Keypad Bezel by first correctly positioning it over its mounting slot, making sure
that the latches at the very end of the bezel are to the left.
9. Work your way around the bezel gradually positioning each Locking Tab into its slot. Take care not to
bend any Locking Tab.
10. When all tabs are correctly inserted, go around again snapping each tab into place.
11. When complete, each membrane button should protrude approximately 1.5 mm to 2 mm above the bezel.
Installing Battery:
Refer to Section 5-4 “Battery Pack Removal and Replacement” on page 5-3.
12. Install the Battery.
13. Install the Battery Door.
Restarting the Instrument:
14. Restart the instrument.
15. Perform a function check for each button on the Main Keypad.
Caution
Exercise extreme caution working around the Main Menu Keypad ribbon cable. Do not touch it with a
screw driver or other tool.
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