Bunn FPG-2 Manual De Usuario

56

Location:

The memory clock board is located on the component 

mounting bracket mounted to the grinder base inside 

the front access panel.

Test Procedure:

1.  Disconnect the grinder from the power supply.

2.  Disconnect the wiring harness on the memory 

board.

3.  Check for 5VDC on J1-4 and J1-5.

If voltage is not present as described the memory board 

is operating properly.

If voltage is present as described, replace the memory 

board.

FIG 64 MEMORY CLOCK BOARD

Removal and Replacement

1.  Disconnect the grinder from the power supply.

2.  Remove the front access panel.

3.  Remove the two 8-32 screws securing the compo-

nent bracket to the grinder base and tilt forward to 

gain access to the memory clock board. 

5.  Disconnect the harness from the memory clock 

board.

6.  Remove the two 6-32 nuts attaching the memory 

clock board to the component bracket.

7.  Remove the two spacers from the old board and 

attach to the new board.

8.  Install new memory board using two #6-32 nuts 

to secure board to the component bracket.

9.  Refer to Fig. 65  when reconnecting the wires.

FIG. 65 MEMORY CLOCK BOARD CONNECTORS

MEMORY

BOARD

GRN

WHI

RED

BLK

+5VDC

J1-1

J1-5

J16-1

J16-5

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