Sanyo EM-D971EES Service Manual page 10

COMPONENT
Measure the resistance between terminals of FPC
connector after removing it from S101. ( See Figure
11).
- When reconnecting the FPC connector, make sure
the holes on the connector are properly inserted in
hooks of the plastic fastener in S101.
MATRIX CIRCUIT FOR TOUCH
KEYBOARD FPC CONNECTOR
TOUCH KEY
BOARD
7 6
10 9
8
UP GRILL
8
1
GRILL
DUAL
START
DOWN
COOK
DUAL
9
START
2
COOK
MICRO CONVEC
STOP/
POWER
CLEAR TEMP
STOP/ MICRO CONVEC
10
3
POWER
CLEAR TEMP
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wires from the switches and check the continuity of the switches, connecting an ohm-meter to its
terminals.
SWITCH
Primary Interlock
Connect an ohm-meters leads to terminals "COM"
and "NO" of switch
Door Sensing
Connect an ohm-meters leads to terminals "COM"
Interlock monitor
and "NC" of switch
CAUTION : After checking the switches, make sure that the interlock monitor switch is properly connected according to
the CIRCUIT DIAGRAM on page 5.
CHECKOUT PROCEDURE
NOTE
S101 10P
5
4 3 S101 10P 2
7 6
BAKED 5
CHICKEN ROAST
A.DEF
POTATO
PIECES
JOINT
BAKED
CHICKEN ROAST
A.DEF
POTATO
PIECES
CHOPS/
CASSER.
SNACKS
STEAKS
MEAL
CHOPS/
CASSER.
SNACKS
STEAKS
MEAL
SLOW CAKE/
FROZEN
BAKED
COOK PUDDING
FISH PIZZA
SLOW
FROZEN
BAKED
COOK PUDDING
FISH PIZZA
CHECKOUT PROCEDURES
-9-
RESULT
When
Resistance touched
Value
Less than
1K Ohms
When checking the "START" key, con-
nect Ohm-meter as illustration below.
TOP
A1
1
2
A2
1
A3
3
4
A4
4
A5
5
A6
6
JOINT
A7
7
C1
8
C2
9
10
C3
CAKE/
TERMINALS OF FPC CONNECTOR
DOOR OPEN DOOR CLOSE
When not
touched
More than
1 MEG Ω
Ohm-meter
Figure 11