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Grinders with One or Two Brewer Optional Interface
1. Set the brewer selector switch on one third
batch with grinder "OFF/ON/START" switch in the
"ON" position.
2. Select the two third's batch, if the readout is not
different then adjust the settings and return se-
lector switch to one third batch. The readout
should now be different.
3. Select full batch, if the readout is not different
then adjust the settings and return selector switch
to two third's batch. The readout should be dif-
ferent.
4. Repeat steps 1 thru 3 for the opposite side.
NOTE: Each brew selection has its own readout. If
readouts do not differ with each brew selection after
adjusting settings, check interface cable. If interface
cable is ok replace weigh control board.
Removal and Replacement:
1. Separate the grinder wiring harness connectors
from the weigh control board.
2. Refer to the illustration below when re- attach-
ing the connectors.
3. Refer to the
Adjustments
(page 7) section to re-
set the volume dispensed.
J4
1
2
3
4
5
5
6
6
7
7
8
8
1
1
2
2
3
3
4
49
10
J1
J3
J5
VIO TO SELECTOR SWITCH
WHI TO POWER CORD
BLK TO FUSE HOLDER
WHI TO MOTOR CIRCUIT BOARD
ORA TO OFF/ON/START SWITCH
ORA TO OFF/ON/START SWITCH
TAN TO INTERFACE CONNECTOR
GRY TO INTERFACE CONNECTOR
BLK TO GRINDING LED
PNK TO INTERFACE CONNECTOR
RED TO OFF/ON/START SWITCH
YEL TO SELECTOR SWITCH
GRN TO OPTIONAL MULTISET SWITCH
TAN TO OPTIONAL INTERFACE CONNECTOR
GRY TO OPTIONAL INTERFACE CONNECTOR
DIGITAL CONTROL DISPLAY
ASSEMBLY CORD CONNECTION
GRY TO WEIGH CONTROL ASSEMBLY
BLK TO WEIGH CONTROL ASSEMBLY
RED TO WEIGH CONTROL ASSEMBLY
ORA TO WEIGH CONTROL ASSEMBLY
P930
SERVICE (cont.)
Weigh Control Board - WDG-2 (cont.)
8. Disconnect grinder from the power source.
If voltage is present as described, proceed to #9.
If voltage is not present as described, refer to the wir-
ing diagram and check the grinder wiring harness.
9. Check the voltage between J4-3 and J4-5 with a
voltmeter when the "OFF/ON/START" is in the
"START" position. Connect grinder to the power
source. The indication must be 120 volts AC.
10. Disconnect grinder from the power source.
If voltage is present as described, proceed to #11.
If voltage is not present as described, replace weigh
control board.
11. Reconnect the wires.
12. Place the hopper selector in the right position.
13. Repeat steps #4 thru 10.
10854 030300