B. CHECKOUT PROCEDURES
(1) CHECKOUT PROCEDURES FOR FUSE BLOWING
CAUTION:
REPLACE BLOWN FUSE WITH 20 AMPERE FUSE.
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.
-23-
PROBLEMS
CAUSES
Fuse blows immediately after
the door is closed.
Improper operation of the primary interlock,
secondary interlock switches and/or the interlock
monitor switch.
Malfunction of the high voltage transformer; the high
voltage capacitor including the diode, the magnetron,
the blower motor or the circuit board.
Fuse blows immediately after
the door is opened.
Fuse blows when the door is closed and START key
is touched.
Summary of Contents for 721.62252200
Page 9: ...8 A II SCHEMATIC DIAGRAM Check the Model No ADD Noise filter...
Page 10: ...9 B MATRIX CIRCUIT FOR TOUCH KEY BOARD Figure 4...
Page 34: ...33 2000 2002 2001 2006 2004 2381 W106 EV CONTROL PANEL PARTS MODEL 721 62259 721 62252...
Page 35: ...34 2004 2381 2001 2003 2005 2382 2006 W106 EV CONTROL PANEL PARTS MODEL 721 62253 721 63263...
Page 37: ...36 W102 4002 4000 4003 4002 4004 EV LATCH BOARD PARTS MODEL 721 62259 721 62252...
Page 38: ...37 W102 4002 4003 4002 4000 EV LATCH BOARD PARTS MODEL 721 62253 721 63263...
Page 41: ...40 5008 6000 6001 W108 W101 W109 6002 9001 EV BASE PLATE PARTS...
