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1. SPECIFICATIONS

Microwave output ................ 1,200W to 120W
Frequency ........................... 2,450MHz
Power supply ....................... 120V, 60Hz
Rated current ...................... 15 Amp.
Safety Device ......................
  Thermal protector(Magnetron) 150°C(270°F) Open
               (Thermostat)           80°C(144°F)Close
   Thermistor (Magnetron)      200°C(360°F) Open
                                            108°C(194°F)Close
   Thermistor(Duct)................120°C(216°F) Open
   Fuse (Cartridge Type) ................. 250V 10A
   Micro switch, Relay
                                           Interlock Switch

Interlock monitor Switch
Door sensing Switch and
Relay RL-3 and RL-4

Max. input time .................... Electronic Digital, up to

                Manual   10min./Memory 30min.

Overall Dimensions ........ 422(W)x540(D)x335(H) mm
Oven cavity size ............ 330(W)x330(D)x230(H) mm
Effective Capacity of Oven Cavity.........19.1liters
Net weight ........................... 29Kg

NOTE: The power output specification, 1200W on this
model is measured with IEC measurement. The power
output is measured with two(2) liters water is equiva-
lent to 1200W in measurement with IEC, when mea-
sured with the following power output.
(1)1. Fill two beakers, one liter of tap water respec-
        tively
     2. Use an accurate thermometer and measure each
        water temperature respectively.
(2) Place beakers side by side in center of the
     ceramic tray.
(3) Close the door,set the “TIME” for two minutes.
     Touch the “START” key and heat the water for
     exactly two minutes.
(4)Take the beakers out, immediately stir the water
     and measure the water temperatures respectively.
(5) Calculate the temperatures rise of water in each
     beaker. Then calculate the average value of the two
     temperature rises.(ƒ¢t)
(6) The teperature rise shall be in the following range;
                       Average Temp. Rise
        Minimum       15.4°C
        Maximum      18.8°C
Power output is affected by the line voltage under load.
(7) For correct Power output measurement, the line
     voltage under load must be  120±2 Volts.

2. POWER OUTPUT MEASUREMENT

Power output Measurement ...................................... 1
Precautions and Repair Service Tips ....................... 1
Circuit Diagram ......................................................... 2

Test Procedures ............................................3
Disassembly Instructions............................... 3

•`4

Exploded View and Parts List......................... 5

•`12

Overall Circuit Diagram.................................13

•`

16

Summary of Contents for EM-C120

Page 1: ...erating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections d Any defective or misadjusted components in the interlock monitor do...

Page 2: ...the area emitting the highest reading switch the meter to SLOW RESPONSE and take a reading for minimum of three 3 seconds We recommended the pattern outline shown below when the door surface is survey...

Page 3: ...ea sured with the following power output 1 1 Fill two beakers one liter of tap water respec tively 2 Use an accurate thermometer and measure each water temperature respectively 2 Place beakers side by...

Page 4: ......

Page 5: ...ng to ground CHECKOUT PROCEDURE RESULT Normal reading Approximately 1 0 ohms Less than 1 ohm Approximately 83 ohms Normal reading Infinite ohms Infinite ohms Note Remove varnish of measured point PRIM...

Page 6: ...g consumable components will be replaced Maintenance light in window display indicates when accumulative cooking time reaches 1 250 hours Light 1 Magnetron Tube Part No 415 002 7702 2 Printed Circuit...

Page 7: ...t have special characteristics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment...

Page 8: ...istics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers should not at...

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Page 10: ...characteristics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers shou...

Page 11: ...istics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers should not at...

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Page 18: ...h Blue NC Inside Light Blue Interlock switch Orange White Pink NO Insde Red wire Transformer Transformer Red wire Red wire Red wire Filament Winding Filament Winding Lower Magnetron Magnetron Upper Up...

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