SERVICE (cont.)
Grinders with One or Two Brewer Optional Interface
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
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.
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.
VIO TO SELECTOR SWITCH
WHI TO POWER CORD
BLK TO FUSE HOLDER
5 1 6 2 7 3 8 4 | J4 |
WHI TO MOTOR CIRCUIT BOARD |
|
| |
ORA TO OFF/ON/START SWITCH | J1 | 6 1 7 2 8 3 94 105 | |
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
J5
DIGITAL CONTROL DISPLAY
ASSEMBLY CORD CONNECTION
GRY TO WEIGH CONTROL ASSEMBLY
BLK TO WEIGH CONTROL ASSEMBLY
J3 | 3 1 4 2 |
RED TO WEIGH CONTROL ASSEMBLY
ORA TO WEIGH CONTROL ASSEMBLY
P930
21 | 10854 030300 |
|