-23-
B. CHECKOUT PROCEDURES
(1) CHECKOUT PROCEDURES FOR FUSE BLOWING
CAUTION: REPLACE BLOWN FUSE WITH 20 AMPERE FUSE.
Fuse blows immediately after
the door is closed.
Fuse blows immediately after
the door is opened.
Fuse blows when the door is closed and START key
is touched.
Improper operation of the primary interlock,
secondary interlock switches and/or the interlock
monitor switch.
Malfunction of the Inverter, the magnetron,
the fan motor or the circuit board.
PROBLEMS CAUSES
NOTES:
- If the fuse is blown by an improper switch operation, replace the defective switches and the fuse at the same time.
After replacing the defective switches with new ones, make sure that they are correctly connected.
- Check for microwave energy leakage according to “1. ADJUSTMENT PROCEDURES” on page 3, when the primary
interlock, secondary interlock switches and/or the interlock monitor switches are adjusted or replaced.
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 ...
