LG LMV2015SW Service Manual page 34

COMPONENTS
TOUCH KEY BOARD
NOTES:
• A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR
ANY REASON.
• MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION.
• WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE CONNECTOR, NOT
THE WIRES.
TEST
Measure the resistance between terminal
pins of connector KEY CONNECTOR.
NOTE:
When reconnecting the FPC connector,
make sure that the holes on the FPC
connector are properly engaged with hooks
on the plastic fastener.
MATRIX CIRCUIT FOR
TOUCH KEY BOARD
CONNECTOR(KEY CON)
5 6 7 8 9
1 1 2 3 4 5
CUSTOM TIME POWER WARMING T/T ABLE
2
SET COOK LEVEL (Hold Warm) ON/OFF
VENT
TURBO MAC & STOP /
Hi / Low / OFF
3 LIGHT
(Vent Speed) CHEESE CLEAR
(Vent On / Off)
SENSOR SENSOR SENSOR DEFROST EZ-ON
4
POPCORN COOK REHEAT (Auto Defrost) (ADD30SEC)
-34-
10 11 12 13 14
6 7 8 9 0
ENTER / AUTO
Timer CLOCK NA
START Time Set
SOFTEN MELT MORE NA NA
CHICKEN
HOT DOG LESS NA NA
NUGGETS
RESULTS
When
When not
touched
touched
Resistance
value
More than
Less than
1 megohm
400 ohms
FPC CONNECTOR
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