-22-
(2) CHECKOUT PROCEDURES FOR RELAY.
Microwave Oven
Toaster
- PROBLEM (A) -
FAN motor and oven lamp turn on without touching
START key when the door is closed.
Remove the mate connector of I/O
CON from the circuit board does
the unit still operate?
Replace the
circuit board
NO
NO
YES
GOOD
- PROBLEM (B) -
FAN motor and oven lamp turn on When the door is
closed and START key is touched.
Check the interlock switches
Replace the
micro switches.
Defective
RELAY or poor
connection of
relay
Replace
RELAY or correct
the connection.
YES
NO
NO
YES
GOOD
- PROBLEM (A) -
FAN motor and indicator light turn on without touching
START key when the door is closed.
Remove the mate connector of I/O
CON from the circuit board does
the unit still operate?
Replace the
circuit board
NO
NO
YES
GOOD
- PROBLEM (B) -
FAN motor and indicator light turn on When the door
is closed and START key is touched.
Check the interlock switches
Replace the
micro switches.
Defective
RELAY or poor
connection of
relay
Replace
RELAY or correct
the connection.
YES
NO
NO
YES
GOOD
Summary of Contents for LTRM1240SB
Page 8: ... 7 B MATRIX CIRCUIT FOR TOUCH KEY BOARD ...
Page 31: ... 30 EXPLODED VIEW INTRODUCTION ...
Page 34: ... 33 LATCH BOARD PARTS WSZ085 56912B 55262A 466003 466001 466001 43500A 44510A ...
Page 36: ... 35 BASE PLATE PARTS 63302A WTT021 65006A 647781 WTT028 WTT021 WSZ002 56170D 63303A ...
Page 37: ... 36 SENSOR PARTS WTP004 56501A WTT021 54974T ...
Page 39: ......
