5-9
CAUTIONS
1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE
OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH
VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE
HIGH VOLTAGE TRANSFORMER. (SEE PAGE 2-1)
2. ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER
OF WATER IN CONTAINER) IN THE OVEN.
COMPONENTS
TEST PROCEDURE
RESULTS
HIGH VOLTAGE
TRANSFORMER
(Wire leads removed)
MAGNETRON
(Wire leads removed)
1. Measure the resistance.
(Ohm-meter scale: Rx1 and Rx100)
• Primary winding
• Secondary winding
• Filament winding
2. Measure the resistance.
(Ohm-meter scale: Rx1000)
• Primary winding to ground
• Filament winding to ground
1. Measure the resistance.
(Ohm-meter scale: Rx1)
• Filament terminal
2. Measure the resistance.
(Ohm-meter scale: Rx1000)
• Filament to chassis
Approx.: 1.3 ~ 1.5 ohm
Approx.: 85 ~ 90 ohm
Less than: 1 ohm
Normal: Infinite
Normal: Infinite
Normal: Less than 1 ohm
Normal: Infinite
PRIMARY
TERMINAL
SECONDARY
TERMINAL
FILAMENT
WINDING
COMPONENT TEST PROCEDURE
Summary of Contents for MS-1071MC
Page 29: ...6 2 1002 1003 1008 1004 1000 1005 1006 1007 1001 DOOR PARTS ...
Page 30: ...6 3 2003 2004 2005 2000 W140 W032 2006 2001 2002 CONTROL PANEL PARTS ...
Page 31: ...6 4 3006 W101 3023 3002 3021 W081 3014 W094 3024 3025 3013 3020 OVEN CAVITY PARTS ...
Page 33: ...6 6 W067 5001 5002 W067 INTERIOR PARTS ...
Page 34: ...6 7 W067 W106 6002 6002 6009 6004 6001 6005 6006 6008 6007 W067 W101 BASE PLATE PARTS ...
Page 35: ...8 2 PRINTED CIRCUIT BOARD ...
Page 36: ...July 1997 Printed in Korea P NO 3828W5S0547 July 1997 P NO 3828W5S0547 Printed in Korea ...
