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)
• 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)
• Between Filament terminal
2. Measure the resistance.
(Ohm-meter scale: Rx1000)
• Filament to chassis
Approx.: 2.5
Approx.: 110
Less than: 0.4
Normal:
Normal:
Normal: Less than 1
Normal:
PRIMARY
TERMINAL
SECONDARY
TERMINAL
FILAMENT
WINDING
TERMINAL
COMPONENT TEST PROCEDURE
Содержание MS-194A
Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...
Страница 28: ...6 2 13581A 14970A 14026A 13552A 13536A 15006A 13213A 13720D 13352A DOOR PARTS ...
Страница 29: ...6 3 WTP018 26638A 23572A 23550D 24930D 24781M 268711 CONTROL PANEL PARTS ...
Страница 30: ...6 4 33052M 340511 33112U WTT021 34960A 34036W 36549S WTP013 33390G 35889A OVEN CAVITY PARTS ...
Страница 31: ...6 5 43501A 43500A 466001 WSZ085 466003 466002 44510A LATCH BOARD PARTS ...
Страница 33: ...6 7 56170D 63302A 63303A WTT021 WSZ002 65006B BASE PLATE PARTS ...
Страница 49: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Страница 50: ...8 2 PRINTED CIRCUIT BOARD ...