5-8
COMPONENT TEST PROCEDURE
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.
HIGH VOLTAGE
TRANSFORMER
(Wire leads removed)
MAGNETRON
(Wire leads removed)
Approx.: 1.4 ohm
Approx.: 90 ohm
Less than: 1 ohm
Normal: Infinite
Normal: Infinite
Normal: Less than 1 ohm
Normal: Infinite
PRIMARY
TERMINAL
SECONDARY
WINDING
FILAMENT
WINDING
TERMINAL
COMPONENTS TEST
PROCEDURE RESULTS
1. Measure the resistance.
(Ohm-meter scale: Rx1)
• 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
Summary of Contents for MH2044DB
Page 9: ...MGT THERMAL GRILL SCHEMATIC DIAGRAM 4 3 7 5 3 1 8 BN ...
Page 29: ...DOOR PARTS EV 13581A ...
Page 30: ...CONTROLLER PARTS EV 24781M ...
Page 31: ...33390B 33112U 44360A 33052M 35300A 36549S 35889A 33390G 35026G ...
Page 32: ...LATCH BOARD PARTS 466001 466003 466001 43500A 569128 EV ...
Page 34: ...BASE PLATE PARTS 56170D EV ...
Page 35: ...R SERVICE PARTS 7 1 REPLACEMENT PARTS LIST ...
Page 36: ......
