16. Always connect a test instrument's ground lead to the instrument chassis ground before 10. Service technicians should remove their connecting the positive lead; always remove watches while repairing an MWO. the instrument's ground lead last. Samsung Electronics...
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(Use a screwdriver.) 3. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components. Fig. 1-1. Discharging the High Voltage Capacitor Samsung Electronics...
2. Specifications 2-1 Table of Specifications M633 POWER SOURCE 230V 50Hz, AC POWER CONSUMPTION 1300W OUTPUT POWER FROM112W TO 750W (6 LEVEL POWER) (IEC-705 TEST PROCEDURE) OPERATING FREQUENCY 2450MHz TIMER 60 MINUTES COOLING METHOD COOLING FAN MOTOR MAGNETRON OM75S(31) OUTSIDE DIMENSIONS...
Operating Instruction 3-2 Features & External Views Ventilation Slot Light Door Safety Interlock Holes 750W Control Panel Door Latches M633 Open Door Push Button Glass Tray Guide Roller 750W M633 200mm 357mm 489mm 351mm 3-3 Checking That Your Oven is Operating Correctly NOTE: The oven must be plugged into an appropriate wall socket.
Operating Instruction 3-4 Variable Power Cooking Chart Operation: OUTPUT POWER LEVEL Set the COOKING POWER CONTROL M633 knob to the appropriate power level by turning it. HIGH 100% 750W MEDIUM HIGH 525W MEDIUM 375W 225W DEFROST 150W WARM 112W 3-5 Adjusting the Cooking Time During Cooking...
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron. H. V. Trans P-HVT Screws PRECAUTION Never touch any circuit wiring with your hand nor with an insulated tool during operation. Samsung Electronics...
1. Insertion depth of the thin metal plate should be 0.5mm or less. 4-3-4 Removal of Key Door & Spring Door "E" Remove pin hinge from Door "E" Detach spring from Door "E" and key door. Key Door Spring Samsung Electronics...
4. When the above three switches operate properly, check if any other part such as the control circuit board, blower motor or high voltage transformer is defective. Base Plate Drive Motor Cover Samsung Electronics...
2. Isolate the magnetron from the circuit by disconnecting its leads. 3. A continuity check across the magnetron filament terminals should indicate one ohm or less. Cooling Fins 4. A continuity check between each filament terminal and the magnetron case should read "open". Samsung Electronics...
Door Closed 5. Confirm that the gap between the switch housing and the switch actuator is no more than ¥ Primary switch 0.5mm when door is closed. ¥ Monitor switch (COM-NC) ¥ Door Sensing S/W ¥ Secondary switch Samsung Electronics...
5. After heating for 2 minutes, measure the temperatures of water in each beaker. 6. Microwave heat distribution rate can be caicviated as follows : Minimum Temperature Rise Heat Distribution = X 100(%) Maximum Temperature Rise The result should exceed 65%. Samsung Electronics...
3) Set survey meter with dual ranges to 2,450MHz. 4) When measuring the leakage, always use the 2 inch spacer cone with the probe. Hold the probe M633 perpendicular to the cabinet door. Place the spacer cone of the probe on the door and/or...
2) Defective con- The oven lamp does not light and fan motor Replace the timer. tacts of timer does not operate. NOTE: Interlock monitor switch must be replaced when the fuse is blown out. Samsung Electronics...
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3) Too small a If a small amount of food is heated repeatedly over To increase the oven load or no a long period of time, microwave turns off during load, place a glass of load operation. water into the oven. Samsung Electronics...
1) If there is no continuity in forward, direction the H.V.Diode is open. Replace. 2) If there is continuity in reverse direction, it's shorted. Fan motor Fan motor Check if the motor coil is open. Replace. does not rotate. Samsung Electronics...
BRN,WHT BLUE BLU,ORG BRN,WHT ORANGE WHITE PRIMARY SECONDARY MONITOR BLACK LATCH S/W LATCH S/W LATCH S/W High Voltage Circuit MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS HIGH VOLTAGE CAPACITOR H.V.FUSE SYMBOL COLOR BROWN BLACK BLUE ORANGE HIGH VOLTAGE TRANSFORMER Samsung Electronics...