7-19
(2) CHECKOUT PROCEDURES FOR RELAY.
- 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?
GOOD
Replace the
circuit board
Replace
RELAY1
- PROBLEM (B) -
FAN motor and oven lamp turn on When the door is
closed and START key is touched.
Replace the
circuit board
Defective
RELAY1 or poor
connection of
RELAY1
Defective
RELAY1
Replace
RELAY1 or correct
the connection.
NO
NO
YES
YES
NO
NO
YES
YES
GOOD
Measure the voltage at pin NO.
35 of U01
Voltage reading: 0 Vdc
10 of U03
Voltage reading: about 15V
Содержание Expert EXV 1711B
Страница 9: ...5 1 A B C MODEL SCHEMATIC DIAGRAM OVERALL CIRCUIT DIAGRAM ...
Страница 38: ...8 2 CONTROLLER PARTS 24781M 23572A 26638A 24810P 268711 WTP018 07 EV ...
Страница 40: ...8 4 LATCH BOARD PARTS 466001 43501A 43500A 466003 466001 44510A WSZ084 EV ...
Страница 43: ...8 7 INSTALLATION PARTS EV 63300M 63861A 65862D 65862B ...
Страница 44: ...8 14 SCHEMATIC DIAGRAM OF P C B ...
Страница 45: ...8 15 PRINTED CIRCUIT BOARD ...
Страница 46: ......