LG LFX31995ST Training Manual page 133

Water / Ice Dispenser
Cap Duct Motor & Duct Flapper
Ice Dispenser Cap Duct Motor
When the paddle is depressed, the
Display Board also sends 5V
the Dispenser Board to energize the
12V
DC
The Display PWB signals the
Dispenser PWB via CON4 Pin 20 to
CON1 Pin 10 on the Dispenser
PWB. 5V
wire to signal the driver IC. The
driver IC applies 12V
the Cap Duct motor to open the Duct
Flapper to dispense the ice.
When the paddle is released the
Display Board signals the Dispenser
PWB via CON4 Pin 22 to CON1 Pin
11 on the Dispenser PWB. 5V
sent on the WH wire to signal the
driver IC. The driver IC applies
12V
DC
the Cap Duct Motor to close the Duct
Flapper. (Motor Reverses!)
131
LFX31995 Refrigerator
Cap Duct Motor
is sent on the RD/YL
DC
to energize
DC
in reverse polarity to energize
to
DC
is
DC