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4. TEST PROCEDURES
4. TEST PROCEDURES
4. TEST PROCEDURES
4. TEST PROCEDURES
4. TEST PROCEDURES
COMPONENT
COMPONENT
COMPONENT
COMPONENT
COMPONENT
TOUCH KEY
BOARD
- - - - -
0
6
1
7
2
8
3
9
STOP /
4
CLEAR
HIGH-VOLTAGE
TRANSFORMER
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 2).
NOTE
NOTE
NOTE
NOTE
NOTE
- When reconnecting the FPC connector, make
sure the holes on the connector are properly
inserted in hooks of the plastic fastener in S101.
MA
MA
TRIX CIRCUIT FOR
TRIX CIRCUIT FOR
MATRIX CIRCUIT FOR
MA
MA
TRIX CIRCUIT FOR
TRIX CIRCUIT FOR
TOUCH KEY BOARD
TOUCH KEY BOARD
TOUCH KEY BOARD
TOUCH KEY BOARD
TOUCH KEY BOARD
FPC CONNECTOR
FPC CONNECTOR
FPC CONNECTOR
FPC CONNECTOR
FPC CONNECTOR
POWER
5
LEVEL
TOTAL
QUICK
DEFROST
ON
QUICK
DEFROST
PIZZA
S TAR T
SLICE
FRESH
CLOCK
VEGETABLE
1)
Measure the resistance :
With an Ohm-Meter on R x 1 scale.
a.
Primary winding
b.
Filament winding
c.
Secondary winding :
2)
Measure the resistance :
With an Ohm-Meter on highest scale.
a.
Primary winding to ground :
b.
Filament winding to ground :
Ohm-Meter
Ohm-Meter
Ohm-Meter
Ohm-Meter
Ohm-Meter
Note
Note
Note
Note
Note : Remove varnish of
measured point.
MORE +
SOUP /
LESS -
BEVERAGE
POTATO
KITCHEN
FROZEN
TIMER
ENTREE
ADD
FROZEN
30 SEC
VEGETABLE
CUSTOM
POPCORN
PROGRAMS
:
:
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
- 3 -
RESUL
RESULT T T T T
RESUL
RESUL
RESUL
When
touched
Resistance
value
Less than
1K Ohms
When checking "START" key, connect
Ohm-Meter as illustration below. . . . .
Ohm-Meter
Ohm-Meter
Ohm-Meter
Ohm-Meter
Ohm-Meter
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
Normal readings :
Approximately 0.30 Ohms.
Less than 1 Ohm.
Approximately 74.2 Ohms.
Normal readings :
Infinite Ohms.
Infinite Ohms.
When not
touched
More than
1 MEG Ohms
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
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