Main Pc Board - LG WM3677HW Training Manual

COMBO
MAIN BOARD
The main board controls all the functions of the COMBO. All the sensors in the
machine report to the main board and the microprocessor makes all adjustments
based on sensor input. There are no panel controls for such things as water level
or washing time because these are determined via fuzzy logic based on the
selected cycle and sensor input.
The main board is potted into a plastic case to protect it from vibration and water.
It cannot be repaired and must be replaced as an assembly.
The connectors on the main board are color coded (See Wiring Diagram,
page 58.) and are unique. It is not possible to cross the connectors. They are
identifiable by pin count, conductor count, and shape, as shown on the diagram.
Two less common color abbreviations on the diagram are SB (Sky Blue) and
NA (Natural, which is cream or white.)
WM3677 COMBO Page 57 of 68 TRAINING MANUAL