5-8
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.: 1.81 ~ 2.4 ohm
Approx.: 110 ~ 125 ohm
Less than: 1 ohm
Normal: Infinite
Normal: Infinite
Normal: Less than 1 ohm
Normal: Infinite
FILAMENT
WINDING
SECONDARY
TERMINAL
PRIMARY
TERMINAL
COMPONENT TEST PROCEDURE
Summary of Contents for DECS11MA
Page 15: ...SCHEMATIC DIAGRAM 4 9...
Page 35: ...6 4 2012 2400 2005 2006 2381 2000 W130 W102 CONTROL PANEL PARTS MODEL DFS11G EV...
Page 36: ...6 5 2012 2400 2005 2006 2381 W130 2000 2002 W102 CONTROL PANEL PARTS MODEL DECS11MA UCS11MA EV...
Page 37: ...2004 2381 2000 2002 2006 W130 W102 CONTROL PANEL PARTS MODEL DES11EA US11EA 6 6 EV...
Page 38: ...6 7 2004 2006 2381 W130 W102 2000 CONTROL PANEL PARTS MODEL DFS11EA UFS11EA EV...
Page 43: ...7 1 SCHEMATIC DIAGRAM OF P C B...
Page 44: ...7 2 PRINTED CIRCUIT BOARD...
