Sanyo 437 450 57, Supplement Of Service Manual

Page: 20 / 36

COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESULTTTTT
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 9).
TOUCH KEY
NOTE NOTE
NOTE NOTE
NOTE
BOARD
- When reconnecting the FPC connector, make When checking “START” key, connect
sure the holes on the connector are properly Ohm-Meter as illustration below.
inserted in hooks of the plastic fastener in S101.
MA MA
MA MA
MATRIX CIRCUIT FOR 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
0 6 5
1
2
3
4
7
8
9
STOP /
CLEAR
FRESH
VEGETABLE
POWER
LEVEL
SOUP /
BEVERAGE
MORE +
LESS -
TOTAL
DEFROST
QUICK
ON
CLOCK POPCORN
PIZZA
SLICE
S TAR T
FROZEN
VEGETABLE
CUSTOM
PROGRAMS
ADD
30 SEC
KITCHEN
TIMER
FROZEN
ENTREE
QUICK
DEFROST
POTATO
Figure 9 Figure 9
Figure 9 Figure 9
Figure 9
Ohm-Meter Ohm-Meter Ohm-Meter Ohm-Meter Ohm-Meter
- 6 -
TERMINALS OF FPC CONNECTOR TERMINALS OF FPC CONNECTOR TERMINALS OF FPC CONNECTOR TERMINALS OF FPC CONNECTOR TERMINALS OF FPC CONNECTOR
CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES CHECKOUT PROCEDURE FOR SWITCHES
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 CHECKOUT PROCEDURES CHECKOUT PROCEDURES CHECKOUT PROCEDURES CHECKOUT PROCEDURES CHECKOUT PROCEDURES DOOR OPEN DOOR OPEN DOOR OPEN DOOR OPEN DOOR OPEN DOOR CLOSED DOOR CLOSED DOOR CLOSED DOOR CLOSED DOOR CLOSED
(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
Terminals “COM” and “NO”
Door Sensing
Interlock Monitor Terminals “COM” and “NC”
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.
When When not
Resistance
touched touched
value
Less than More than
1K Ohms 1 MEG Ohms