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It´s very very nice manual with all, what i need. Original in good quality. Very fast business. Very much thanks...
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Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site.
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Exactly what was needed to assess the product - excellent value and great service
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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
TEST PROCEDURES
PROCEDURE LETTER A MAGNETRON TEST NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED TOOL WHILE THE OVEN IS IN OPERATION. CARRY OUT 3D CHECK Isolate the magnetron from high voltage circuit by removing all leads connected to filament terminal. To test for an open circuit filament use an ohmmeter to make a continuity test between the magnetron filament terminals, the meter should show a reading of less than 1 ohm. To test for short filament to anode condition, connect ohmmeter between one of the filament terminals and the case of the magnetron (ground). This test should be indicated an infinite resistance. If a low or zero resistance reading is obtained then the magnetron should be considered faulty and replaced. MICROWAVE OUTPUT POWER (IEC-705-1988) The following test procedure should be carried out with the microwave oven in a fully assembled condition (outer case fitted). Microwave output power from the magnetron can be measured by way of IEC 60705, i.e. the temperature of a water load is measured to see how much energy is absorbed in a given time. To measure the microwave output power in the microwave oven, the relation between the calorie and watt is used. When P(W) heating works for t(second), approximately P x t/4.187 calorie is generated. On the other hand, if the temperature of the water with V(ml) rises �T (°C) during this microwave heating period, the calorie of the water is V x �T. The formula is as follows; P x t / 4.187 = V x � T P (W) = 4.187 x V x �T / t Our condition for water load is as follows: Room temperature..............around 20°C Power supply Voltage.........Rated voltage Water load.........1000 g Initial temperature...........10 ± 2°C Heating time ...47+3=50 sec. P = 90 x �T Measuring condition: 1. Container The water container must be a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm. 2. Temperature of the oven and vessel The oven and the empty vessel are at ambient temperature prior to the start of the test. 3. Temperature of the water The initial temperature of the water is (10 ± 2)°C. 4. Select the initial and final water temperature so that the maximum difference between the final water temperature and the ambient temperature is 5K. 5. Select stirring devices and measuring instruments in order to minimize addition or removal of heat. 6. The graduation of the thermometer must be scaled by 0.1°C at minimum and an accurate thermometer. 7. The water load must be (1000 ± 5) g. 8. �t� is measured while the microwave generator is operating at full power. Magnetron filament heatup time is not included. NOTE: The operation time of the microwave oven is �t + 3� sec. 3 seconds is the magnetron filament heatup time. Measuring method: 1. Measure the initial temperature of the water before the water is added to the vessel. (Example: The initial temperature T1 = 11°C) 2. Add the 1 litre water to the vessel. 3. Place the load on the centre of the shelf. 4. Operate the microwave oven at HIGH for the temperature of the water rises by a value � T of (10 ± 2) K. 5. Stir the water to equalize temperature throughout the vessel. R-733 - 11 COMPONENT TEST
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