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Fabricant : Daewoo
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Nom Fichier : a03b3f87-4630-4f07-86fe-33982ae92540.pdf
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Facilité d'utilisation
0.7 1 B12 3516906940 BUTTON DOOR OPEN ABS SG-0760 SG-175 1 1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. 2) Remove the door open lever from the control panel. 3) Remove four screws which secure the timer assembly. 4) Remove the timer assembly. 5) Pull out the timer knob from the timer. 6) Pull out the imer coupler from the timer. 7) Remove the screw which secure the V.P.C coupler. 8) Pull out the V.P.C coupler, V.P.C knob and flat spring from the control panel. 9) Remove door open button and button spring from the control panel. 10) Reverse the above steps for reassembly. 10 TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not. 1. Check grounding before trouble checking. 2. Be careful of the high voltage circuit. 3. Discharge the high voltage capacitor. 4. When checking the continuity of the switches, fuse or high voltage transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter. NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet. Check wire harness, wiring and connected of the terminals and power cord before check the parts listed below. (TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted. Does the fuse blow? If outlet has proper voltage, check continuity of power sup- ply cord. ContinuityYES NO NO NO NO Continuity Does the fan motor work when you shut the door and turn the timer? Check continuity of interlock monitor switch with door shut. Replace primary, secondary interlock switch and interlock monitor switch. Replace fuse and check con- tinuity of both interlock switch’s contact and monitor switch’s contact with door partially open until monitor switch contact. Replace primary, secondary interlock switch and interlock monitor switch. Normal Fuse again Both continuity Disconnect one side of the lead wire connected from transformer to the high volt- age capacitor, and operate oven. Replace high volt- age capacitor. Replace high volt- age transformer Replace power sup- ply cord. 14 NO YES YES NO Does the fan motor work when you shut the door and turn the timer? Replace or repair oven lamp, turntable motor. Does the oven lamp light? Does the turntable turn? Normal reading should be approx. 0. Replace high volt- age transformet If microwave do not oscillate, check continuity of filament of magnetron. Poor continuity Continuity NO Continuity Check continuity filament tap (3.3V) of high voltage. Continuity Check the diode for continuity in the reverse and normal directions. Continuity in the reverse direction. Replace high voltage diode. Replace magnetron. Meter with 6V or higher voltage batteries should be used to check the normal direction resis- tance of the diode. Check the isolation of filament winding of high voltage trans- former. NO Good Good Replace high voltage transformer Replace magnetron. 15 MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water exposed to the microwave as directed below. PROCEDURE 1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of 1000±5cc of potable water. 2. The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm. 3. The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature of the water is 10±2°C (50±3.6°F) It is measured immediately before the water is added to the vessel. After addition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowest normal position. 4. Microwave power is switched on. 5. Heating time should be exactly A seconds. (Refer to table as following) Heating time is measured while the microwave generator is operating at full power. The filament heat-up time for magnetron is not included. 6. The initial and final temperature of water is selected so that the maximum difference between the ambient and final water temperature is 5K. 7. The microwave power output P in watts is calculated from the following formula : P=4187 X T/t • T is difference between initial and ending temperature. • It is the heating time. The power measured should be B (Refer to SPECIFICATIONS)W±10.0%. CAUTION : 1. Water load should be measured exactly to 1 liters. 2. Input power voltage should be exactly specified voltage(Refer to SPECIFICATIONS). 3. Ambient temperature should be 20±2°C(68±3.6°F) Heating time for power output: A(second) 70 64 60 56 52 49 47 44 42 40 38 B(W) 600 650 700 750 800 850 900 950 1000 1050 1100 16 2. MICROWAVE RADIATION TEST WARNING : 1. M...