LG LMV1314B Service Manual page 27

COMPONENTS
CIRCUIT BOARD
TOUCH KEY
BOARD
NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS
SERVICED FOR ANY REASON.
TEST PROCEDURES
See page 7-19 for "CHECKOUT PROCEDURES FOR THE CIRCUIT BOARD"
Measure the resistance between terminal
pins of connector KEY CON.
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)
Ez On
FRESH
VEGETABLE
Figure 26
Resistance
CUSTOM
TIMER
SET
7-16
RESULTS
When When not
touched touched
value
Less than More than
400 ohms 1 mega ohm
FPC CONNECTOR
Top
Figure 27
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