SERVICE (Cont.)

Membrane Switches (Model MHG only)

FIG 57 MEMBRANE SWITCH

Location:

The membrane switch is located on the front of the hopper housing.

Test Procedure:

1.Press and hold the right hidden button to enter programming.

2.Scroll through the menus to Service Tools and select YES.

3.Select YES at Test Outputs and scroll through to Test Switches by pressing NEXT.

4.Follow the chart below to test all switches.

If any of the switches indicate a fault, replace the membrane switch.

Removal and Replacement

1.Disconnect the grinder from the power supply.

2.Remove the rear access panel.

3.Disconnect the membrane switch harness from the control board.

4.Carefully peel the membrane switch from the front of the switch bezel.

5.Remove any excess adhesive from the bezel sur- face.

6.Remove the backing from the new membrane switch.

7.Feed the membrane switch harness through the openning and apply the new membrane switch to the switch bezel.

8.Connect the switch harness to J9 on the display board.

TEST SWITCHES?

NO YES

PRESS RIGHT

HIDDEN TO EXIT

NOTHING PRESSED

TEST FREQUENCY?

NO YES

PRESSING ANY BUTTON

EXCEPT THE RIGHT HIDDEN

BUTTON WILL DISPLAY

THE BUTTON NAME

ON THE SCREEN

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Bunn G9-2T DBC, LPG-2, G9WD, G1, FPG-2 service manual Membrane Switches Model MHG only

FPG-2, G1, FPG, G9-2T DBC, G9-2 specifications

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