Kenmore 721. 62622 Service Manual page 28

COMPONENTS
TOUCH KEY
BOARD
TEST PROCEDURES
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)
(For detail matrix circuit of each model,
refer to page 5-2.)
FAN Auto
Popcorn
N.C
High/Low/Off
Cook
LIGHT
N.C
Reheat
Potato
High/Night/Off
Add
Beverage
N.C Clock
Minute
Express
N.C
N.C Pizza
Defrost
Turntable STOP
START N.C
On/Off Clear
Frozen
N.C N.C N.C
Entree
Figure 27
Resistance
Cook
5 0
Time
Auto
6 1
Defrost
Kitchen
7 2
Timer
8 3
Power
Hold
9 4
Warm
N.C N.C N.C
7-17
RESULTS
When
touched
value
Less than More than
400 ohms 1 mega ohm
FPC CONNECTOR
Top
Figure 28
When not
touched
1
2
3
4
5
6
7
8
9
10
11
12
13