ADVENTURER+ Service Manual P/N 83020790 A
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off adhesive backing for easy replacement.
1. Refer to paragraph 4.3.1, page 4-10 and open the balance.
2. Disconnect the Membrane Switch Cable from the front of the Main PC Board.
3. Before replacing the Membrane Switch, connect a new Membrane Switch to the Main PC Board connector,
apply power to the balance and test the balance. If the balance functions properly with the new Membrane
Switch, replace the switch. If the balance fails to operate properly with the new switch, the Main PC Board
requires replacement.
3. Using a small knife or screwdriver, pry up a corner of the Membrane Switch from the front panel. Grasp the
edge of the Membrane Switch which is accessible with your fingers and pull carefully across the cover until
the membrane switch is free of the cover.
4. On the Top Cover, remove any adhesive residue from the Top Cover.
CAUTION
IN THE NEXT STEP,USE CAUTION WHEN APPLYING THE MEMBRANE
SWITCH TO THE TOP COVER. IT MUST BE ALIGNED PROPERLY OR IT MAY
BECOME DAMAGED IFYOU TRY TO REMOVE AND REPOSITION IT.
5. Peel off the adhesive backing from the new Membrane Switch, then place the cable from the switch
through the hole in the Top Cover. Carefully position the new Membrane Switch on the Top Cover, starting at
the bottom edges and roll the Membrane Switch upwards into its final position. Smooth down the switch until it
is completely in position on the Top Cover.
6. Place the Top Cover into position next to the base and connect the Membrane Switch cable to the
connector on the Main PC Board.
7. Refer to paragraph 4.3.2, page 4-11 and re-assemble the balance.
8. After assembly, verify that the balance meets all specifications. Perform all tests.
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