16. Always connect a test instrument's ground 10. Service technicians should remove their watches while repairing an MWO. lead to the instrument chassis ground before connecting the positive lead; always remove the instrument's ground lead last. Samsung Electronics...
Page 3
PRECAUTION DO NOT measure the voltage in the high voltage circuit Servicemen should remove their watches whenever including filament voltage of magnetron. working close to or replacing the magnetron. Samsung Electronics...
4-2 Replacement of High Voltage Transformer 1. Discharge the high voltage capacitor. 2. Disconnect all the leads. 3. Remove the mounting bolts. 4. Reconnect the leads correctly and firmly. H. V. Trans Screws Samsung Electronics...
Following the procedure as shown in the figure, insert and bend a thin metal plate between Door "E" and Door "A" until you hear the 'tick' sound. Door "E" 1. Insertion depth of the thin metal plate should be 0.5mm or less. Samsung Electronics...
Switch coupler. 8. Connect all the leads to the drive motor. Drive Motor Cover Base Plate 9. Screw the drive motor cover to the base plate with a screw driver. Samsung Electronics...
Page 9
2. Disconnect the connectors from the control circuit board. 3. Remove screws securing the control circuit bord. 4. Lift up the control circuit board from right side and remove the hooks holding the contol circuit board to the box assembly. Screws Screws Samsung Electronics...
1. Isolate the magnetron from the circuit by disconnecting its leads. 2. A continuity check across the magnetron filament terminals should indicate one ohm or less. 3. A continuity check between each filament terminal and magnetron case should read open. Cooling Fins Samsung Electronics...
4. Confirm that the gap between the switch Door Open Door Closed housing and the switch actuator is no more than ∞ Primary switch 0.5mm when door is closed. ∞ Monitor switch (COM-NC) ∞ Monitor switch (COM-NO) ∞ Door Sensing S/W Samsung Electronics...
Page 12
5. After heating for 2 minutes, measure the water temperature in each beaker. 6. Microwave heat distribution rate can be calculated as follows: Minimum Beaker Temperature Rise Heat Distribution = X 100(%) Maximum Temperature Rise The result should exceed 65%. Cooking Tray Samsung Electronics...
; CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer. Samsung Electronics...
H.V.Transformer component test procedure and replace if it is H.V.Capacitor defective. H.V.Diode,H.V.Fuse Magnetron 4. Open or loose wiring of power relay 5. Defective primary latch switch 6. Defective power relay or Ass'y PCB Replace PCB main. Samsung Electronics...
Page 15
Use plastic wrap or cover with a lid. Stir once or twice while cooking foods such as soup, cocoa, or milk. Noise from the turntable motor Noise may result from the motor. Replace turntable motor. when it starts to operate. Samsung Electronics...
BLU : BLUE ORG : ORANGE PRIMARY LATCH DOOR SENSING MONITOR YEL : YELLOW SWITCH SWITCH SWITCH PNK : PINK MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS HIGH VOLTAGE CAPACITOR H.V.FUSE SYMBOL COLOR ORANGE BROWN BLACK BLUE HIGH VOLTAGE TRANSFORMER Samsung Electronics...