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2. MICROWAVE RADIATION TEST

PROCEDURES

1. Prepare Microwave Energy Survey Meter, 600cc glass

beaker, and glass thermometer 100˚C(212˚F).

2. Pour 275cc±15cc of tap water initially at 20±5˚C(68±9˚F) in

the 600cc glass beaker with an inside diameter of approx.
95mm(3.5in.).

3. Place it at the center of the tray and set it in a cavity.

4. Close the door and operate the oven.

5. Measure the leakage by using Microwave Energy Survey

Meter with dual ranges, set to 2450MHz.

1) Measured radiation leakage must not exceed the value

prescribed below. Leakage for a fully assembled oven with
door normally closed must be less than 4mW/cm

2

.

2) When measuring the leakage, always use the 5cm(2in.)

space cone with probe. Hold the probe perpendicular to 
the cabinet and door. Place the space cone of the probe
on the door, cabinet, door seem, door viewing screen, the
exhaust air vents and the suction air vents.

3) Measuring should be in a counter-clockwise direction at a

rate of 1 in./sec. If the leakage of the cabinet door seem is
unknown, move the probe more slowly.

4) When measuring near a corner of the door, keep the probe

perpendicular to the areas making sure the probe end at the base of the cone does not get closer than 2 in. from any
metal. If it does not, erroneous reading may result.

CAUTION :
1. Make sure to check the microwave leakage before and after repair of adjustment.
2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy.
3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known.
4. Care should be taken not to place the eyes in direct line with the source of microwave energy.
5. Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the unit

under the test.

Содержание N230S

Страница 1: ...9S001 http svc dwe co kr May 2003 Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please r...

Страница 2: ...monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwav...

Страница 3: ...d oven unit is found to servicing a microwave emission check should be performed prior to servicing the oven a inform the manufacturer importer or assembler b repair the unit at no cost to the owner c...

Страница 4: ...NCY 2450MHz OUTSIDE DIMENSIONS W X H X D 539 x 300 x 406 mm 21 2 x 11 8 x 16 0 in CAVITY DIMENSIONS W X H X D 354 x 228 x 373 mm 13 9 x 9 0 x 14 7 in NET WEIGHT APPROX 15 5 kg 34 1 Ibs TIMER 99 min 99...

Страница 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION 539 406 300...

Страница 6: ...ects the microwave outlet from splashes of cooking foods 5 Safety interlock system Prevents the oven from operating while the door is opened 6 Door release button Pushing this button stops oven operat...

Страница 7: ...OK Used to cook or reheat 5 TIME DEFROST Used to defrost food for time 6 AUTO DEFROST Used to defrost foods for weight 7 POWER LEVEL Used to set power level 8 KITCHEN TIMER Used as a minute timer dela...

Страница 8: ...f special type which if damaged must be repaired with cable of same type Such a cable can be purchased from DAEWOO and must be installed by a qualified person 6 Examine the oven after unpacking for an...

Страница 9: ...a lower power level 7 The display will show 0 when the oven is plugged in 8 Time clock returns to the present time when the cooking time ends 9 When the PAUSE CLEAR pad is touched during the oven oper...

Страница 10: ...epair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation stopped and electric charge remains in the high voltage capacitor When replacing o...

Страница 11: ...ard 2 To remove door assembly 1 Remove two screws which secure the stopper hinge top 2 Remove the door assembly from top plate of cavity 3 Reverse the above for reassembly NOTE After replacing the doo...

Страница 12: ...DESCRIPTION Q TY REMARK A01 3511716300 DOOR SUB AS KOR 1A5A3A01 1 A02 3517005920 BARRIER SCREEN 0 PET T0 25 1 A03 3515202900 STOPPER HINGE T AS KOR 121M0A 1 A04 3511711300 DOOR PAINTING AS KOR 1A1G0A...

Страница 13: ...ge top and then push the door to contact the door seal to oven front surface Tighten two screws 2 To reduce gap located on part B Loosen two screws on stopper hinge under and then push the door to con...

Страница 14: ...B09 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3518570970 SWITCH MEMBRANE KOR 1A5A9S 1 B02 3511604820 DECORATOR C PANEL SUS430 H L 0 5T 1 B03 3516727520 CONTROL PANEL ABS AF 345 VE 0855U 1...

Страница 15: ...m2 for a fully assembled oven with door normally closed 6 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal of the H V diode and the capacitor holder 2 Remove...

Страница 16: ...ssembly 4 Draw forward the wind guide assembly 5 Pull the fan from the motor shaft 6 Remove two screws which secure the motor shaded pole 7 Remove the motor shaded pole 8 Reverse the above steps for r...

Страница 17: ...pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it un...

Страница 18: ...e terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed Malfunction of interlock moni tor switch Malfunction of int...

Страница 19: ...relay coil Approx 15 VDC Replace NOTE All these switches must be replaced at the same time please refer to Interlock Mechanism And Adjustment TROUBLE 2 Display shows all figures selected but oven does...

Страница 20: ...on Defective high voltage rectifier Replace Connect megger leads to mag netron terminal and magnetron body Continuity Defective mag netron Replace Check resistance of primary and secondary coil of hig...

Страница 21: ...ps in time while counting down 19 Display counts down noticeably too fast while cooking 10 Display does not show the time of day when cancel pad is touched 11 Oven lamp and turntable motor do not stop...

Страница 22: ...essel 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 fol...

Страница 23: ...net door seem door viewing screen the exhaust air vents and the suction air vents 3 Measuring should be in a counter clockwise direction at a rate of 1 in sec If the leakage of the cabinet door seem i...

Страница 24: ...er set on the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and again observe the resistance reading Meter with 6V 9V or higher voltage batteries s...

Страница 25: ...24 WIRING DIAGRAM...

Страница 26: ...NOTE Each measure point must be measured with GND point NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power s...

Страница 27: ...26 Measure Point MP1 MP2...

Страница 28: ...e refer to Circuit Diagram Point 2 Check method 3 When there is no microwave oscillation 1 When touching START pad oven lamp does not turn on Fan motor does not rotate but cook indicator in display co...

Страница 29: ...28 2 PCB CIRCUIT DIAGRAM...

Страница 30: ...STOR R15 16 1 6W 10K 5 RD AZ103J 2 20 RESISTOR R17 1 6W 510 5 RD AZ511J 1 21 RESISTOR R18 1 6W 1M 5 RD AZ105J 1 22 RESISTOR R19 1 4W 51 5 RD 4Z510J 1 23 RESISTOR R23 1 6W 4 7K 5 RD AZ472J 1 1 24 REGUL...

Страница 31: ...30 1 DOOR ASSEMBLY Refer to Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3 TOTAL ASSEMBLY EXPLODED VIEW AND PARTS LIST...

Страница 32: ...HVR 1X 3AB 12KV 187 1 F24 3518700230 FUSE HV 5KV 0 7A HV 41A70 1 187 1 F25 3518114510 TRANS HV DY N95S0 16T 1 F26 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F27 3510312400 BASE SBHG T0 7 1 F28 7...

Страница 33: ...S M No R1A5A9S001 DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE May 2003...

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