-30-
CONDITION
CHECK
RESULT
CAUSE
REMEDY
No microwave
oscillation.
No continuity.
Continuity.
Defective PCB
assembly.
Replace PCB
assembly.
Disconnect the
wire leads from
relay and check
continuity of
relay. (Operate
the unit)
Replace Inverter
and Magnetron.
Output is full power
when you set lower
power level.
Abnormal.
Defective PCB
assembly.
Replace PCB
assembly.
Disconnect the
lead wires from
relay and check
continuity relay .
(Operate the unit)
(TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run.
(Display operates properly)
NOTE : • Make sure the wire leads correct position.
• When Removing the lead wires from the parts, be sure to grasp the connector, not the wires.
• When removing the magnetron, be sure to install the magnetron gasket in the correct position
and in good condition.
Summary of Contents for LRMM1430SB
Page 8: ...6 OVERALL CIRCUIT DIAGRAM A SCHEMATIC DIAGRAM 7 Figure 3 ...
Page 9: ...B MATRIX CIRCUIT FOR TOUCH KEY BOARD 8 Figure 4 ...
Page 32: ... 31 INTRODUCTION EXPLODED VIEW ...
Page 34: ... 33 CONTROLLER PARTS 268711 WTP002 23506A 13551A ...
Page 36: ... 35 LATCH BOARD PARTS WSZ085 43500A 466001 43501A 466003 466001 ...
Page 37: ... 36 OVEN INTERIOR PARTS WTT028 WTT021 54974T 56501A 56930V 56912B 43500A 56324A WSZ002 ...
Page 43: ... 42 SCHEMATIC DIAGRAM OF P C B ...
