7-19
(2) CHECKOUT PROCEDURES FOR RELAY.
- PROBLEM (A) -
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
Replace
RELAY1
NO
NO
YES
YES
GOOD
Defective
RELAY1
- PROBLEM (B) -
Oven lamp turn on When the door is closed and
START key is touched.
Measure the voltage at pin NO.
35 of U01
Voltage reading: -5 Vdc
Replace the
circuit board
Defective
RELAY1 or poor
connection of
RELAY1
Replace
RELAY1 or correct
the connection.
YES
NO
NO
YES
GOOD
Содержание 721.80412500
Страница 9: ...5 1 OVERALL CIRCUIT DIAGRAM SCHEMATIC DIAGRAM RY1 O L RY14 C L HIGH RY15 C L NIGHT RY11 V M RY6 T M...
Страница 10: ...5 2 MATRIX CIRCUIT FOR TOUCH KEY BOARD...
Страница 34: ...7 23 PROBLEM D No buzzing when touching the key between stages or at end of cooking 1...
Страница 35: ...7 24 PROBLEM E Ventilation fan does not operate when FAN HIGH LOW key is touched 1 Check 1 POWER SUPPLY 2 FUSE...
Страница 39: ...8 4 4000 W102 4001 4002 4003 4002 4004 LATCH BOARD PARTS EV...
Страница 43: ...Printed in Korea P NO 3828W5S5237...
