Samsung M540 Service Manual

Also see for Rant M540: User manual

Contents

5-4 Samsung Electronics1) Pour 275¡ 15cc of 20¡ 5¡ ( 68¡ 9¢ ) water in abeaker which is graduated to 600cc, and placethe beaker in the center of the oven.2) Start to operate the oven and measure theleakage by using a microwave energy surveymeter.3) Set survey meter with dual ranges to 2,450MHz.4) When measuring the leakage, always use the 2inch spacer cone with the probe. Hold the probeperpendicular to the cabinet door. Place thespacer cone of the probe on the door and/orcabinet door seam and move along the seam, thedoor viewing window and the exhaust openingsmoving the probe in a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet doorseam is taken near a corner of the door, keep the probe perpendicular to the areas making sure that theprobe end at the base of the cone does not get closer than 2 inches to any metal. If it gets closer than 2inches, erroneous readings may result.5) Measured leakage must be less than 4mW/cm2, after repair or adjustment.Alignment and AdjustmentsDefrostPowerLevel1472580369PauseCancelClockStart5-13 Leakage Measuring Procedure5-10 Procedure for Measurement of Microwave Energy Leakage5-12 Note on Measurement5-11 Check for Microwave Leakage5-13-1 Record keeping and notification after measurement1) After adjustment and repair of a radiarion preventing device, make a repair record for the measuredvalues, and keep the data.2) If the radiation leakage is more than 4 mW/§† after determining that all parts are in good condition,functioning properly and the identical parts are replaced as listed in this manual notift that fact to ;SAMSUNG ELECTRONICS AUSTRALIAUNIT G 10-16 SOUTH STRYDALMERE NSW 2116 AUSTRALIA5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by itsmanufacturer.1. Remove the outer panel.2. Pour 275±15cc of 20±5˚C(68±9˚F) water in abeaker which is graduated to 600cc, andplace the beaker in the center of the oven.3. Start the oven at the highest power level.4. Set survey meter dual ranges to 2,450MHz.5. Using the survey meter and spacer cone asdescribed above, measure arnear theopening of magnetron, the surface of the airguide and the surface of the wave guide asshown in the following photo.( but avoid thehigh voltage components.) The neadingshould be less than 4mW/cm2.1) Do not exceed the limited scale.2) The test probe must be held on the grip of the handle, otherwise a false reading may result when theoperator's hand is between the handle and the probe.3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this maycause damage to the probe.4) Follow the recommendation of the manufacturer of the microwave energy survey meter.Maximum allowable leakage is 5mW/cm2 .4mW/cm2 is used to allow for measurement and meter accuracy