7-18
(2)CHECKOUT PROCEDURES FOR RELAY.
-PROBLEM (A)-
FAN motor turns on without touching START key
when the door is closed.
-PROBLEM (B)-
FAN motor turns on When the door is closed and
START key is touched.
GOOD
Remove the mate connector of I/O
CON from the circuit board.
Does the unit still operate?
Defective
Wire Assembly
Replace the
circuit board
Replace
Wire Assembly
NO
NO
YES
YES
-PROBLEM (A)--
Oven lamp turns on without touching START key
when the door is closed.
GOOD
Remove the mate connector of I/O
CON from the circuit board.
Does the unit still operate?
Defective
Wire Assembly
Replace the
circuit board
Replace
Wire Assembly
NO
NO
YES
YES
GOOD
Measure the voltage at pin NO.
1,4 of CN1
Voltage reading:120 V AC
Replace the
circuit board
Defective
FAN motor
YES
NO
NO
YES
Replace
FAN motor.
-PROBLEM (B)-
Oven lamp turns on When the door is closed and
START key is touched.
GOOD
Measure the voltage at pin NO.
1,4 of CN1
Voltage reading:120 V AC
Replace the
circuit board
Defective
Oven lamp
YES
NO
NO
YES
Replace
Oven lamp
Summary of Contents for AMV4204AAB
Page 9: ...5 1 OVERALL CIRCUIT DIAGRAM SCHEMATIC DIAGRAM I Check the Model No ...
Page 10: ...5 2 SCHEMATIC DIAGRAM II Check the Model No ADD Noise filter ...
Page 11: ...5 3 MATRIX CIRCUIT FOR TOUCH KEY BOARD 13 12 8 9 10 11 2 1 3 4 5 6 7 KEY MATRIX ...
Page 37: ...8 2 CONTROLLER PARTS 2004 2002 2381 2008 2006 2009 W130 2000 07 Check the Serial No EV ...
Page 39: ...8 4 LATCH BOARD PARTS W111 4004 4003 4002 4002 4001 4000 EV ...
Page 43: ...8 8 INSTALLATION PARTS VINYL BAG 6011 6009 6010 6008 EV ...
