Sanyo EM-P672WS Service Manual page 8

COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT
TOUCH KEY
BOARD
0 6
1 7
2 8
3 9
STOP /
4
CLEAR
Disconnect the lead wires from the switches and check for the continuity of the switches, connecting an Ohm-Meter
to its terminals.
SWITCHES SWITCHES SWITCHES
SWITCHES SWITCHES
(See Figure 1 on page 1) (See Figure 1 on page 1)
(See Figure 1 on page 1) (See Figure 1 on page 1) (See Figure 1 on page 1)
Primary Interlock
Door Sensing
Interlock Monitor
CAUTION CAUTION CAUTION CAUTION CAUTION : After checking the switches, make sure that the interlock monitor switch is properly connected according
to the CIRCUIT DIAGRAM on page 3.
CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 9).
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 MATRIX CIRCUIT FOR MA MA MA TRIX CIRCUIT FOR TRIX CIRCUIT FOR 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
FRESH
CLOCK
VEGETABLE
CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES CHECKOUT PROCEDURES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES
Terminals "COM" and "NO"
Terminals "COM" and "NC"
SOUP /
MORE +
BEVERAGE
LESS -
POTATO
FROZEN KITCHEN
ENTREE TIMER
ADD
FROZEN
30 SEC
VEGETABLE
CUSTOM
POPCORN
PROGRAMS
- 6 -
RESUL RESUL RESUL RESUL RESULT T T T T
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
DOOR OPEN DOOR OPEN DOOR OPEN
DOOR OPEN DOOR OPEN
When not
touched
More than
1 MEG Ohms
Figure 9 Figure 9 Figure 9
Figure 9 Figure 9
DOOR CLOSED DOOR CLOSED DOOR CLOSED
DOOR CLOSED DOOR CLOSED