Display Board - Bunn MHG Service & Repair Manual

SERVICE (Cont.)
Display Board (Model MHG)
FIG 66 DISPLAY BOARD
Location:
The display board is located inside the hopper
housing behind the membrane switch.
Test Procedure:
1. Press and hold the upper right hidden button to
enter the Programming menus.
2. Scroll to SERVICE TOOLS menu, and press the
button under "YES".
3. Press "YES" under TEST OUTPUTS and proceed,
through the menus to test the left and right gates,
and the grinder motor.
4. Then scroll to the TEST SWICHES menu and press
the button under "YES". Test each button on the
conttrol panel, the button pressed will be displayed
on the screen.
Removal and Replacement
1. Disconnect the grinder from the power supply.
2. Remove the two 6-32 screws attaching the mem-
brane switch bezel to the hopper housing.
3. Tilt the bezel assembly forward.
4. Remove the four 8-32 screws attaching the board
cover bracket to the switch bezel and remove the
bracket.
5. Disconnect the wiring harness from the display
board.
6. Remove the four 8-32 screws attaching the display
board to the switch bezel and remove the board.
To Control Board J8
1
J9-1
FIG 67 DISPLAY BOARD TERMINALS
57

DISPLAY BOARD

16
16
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