7-18
(2) CHECKOUT PROCEDURES FOR RELAY.
- PROBLEM (A) -
FAN motor turns 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?
GOOD
Replace the
circuit board
Replace
Wire Assembly
- PROBLEM (B) -
FAN motor turns on When the door is closed and
START key is touched.
Measure the voltage at pin NO.
1, 5 of CN1
Voltage reading: 120 V AC
Replace the
circuit board
Defective
FAN motor
Defective
Wire Assembly
Replace
FAN motor.
NO
NO
YES
YES
NO
NO
YES
YES
GOOD
- PROBLEM (A) -
Oven lamp turns 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?
GOOD
Replace the
circuit board
Replace
Wire Assembly
- PROBLEM (B) -
Oven lamp turns on When the door is closed and
START key is touched.
Measure the voltage at pin NO.
1, 4 of CN1
Voltage reading: 120 V AC
Replace the
circuit board
Defective
Oven lamp
Defective
Wire Assembly
Replace
Oven lamp
NO
NO
YES
YES
NO
NO
YES
YES
GOOD
Содержание LMVM1945SB
Страница 9: ...5 1 SCHEMATIC DIAGRAM OVERALL CIRCUIT DIAGRAM ...
Страница 10: ...5 2 MATRIX CIRCUIT FOR TOUCH KEY BOARD ...
Страница 37: ...8 2 CONTROLLER PARTS I 23506A 268711 ...
Страница 38: ...8 3 CONTROLLER PARTS II 268712 WTT028 250201 23572A 24810P 24781M ...
Страница 40: ...8 5 LATCH BOARD PARTS 43500A WSZ085 43501A 466001 466003 466001 44510A ...
Страница 43: ...8 8 INSTALLATION PARTS 44360A WSZ133 WWZ068 WSZ204 WSZ203 WSZ136 WSZ098 WWZ068 63300M 65862D 65862B 63861A ...
Страница 44: ...8 17 SCHEMATIC DIAGRAM OF P C B ...
Страница 45: ...8 18 PRINTED CIRCUIT BOARD ...
Страница 46: ...P NO 3828W5S3133 June 2003 Printed in Korea ...
