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30

(TROUBLE 3)    No microwave oscillation even though fan motor rotates.

CONDITION

CHECK

RESULT

Check continuity of high 

voltage capacitor terminals

with wires removed

Continuity

CAUSE

Defective high

voltage

transformer

REMEDY

Replace

No

microwave

oscillation

Check continuity of high voltage

rectifier in forward and backward

direction with DC megger

Continuity in

backward

direction

Defective high

voltage rectifier

Replace

Connect megger leads to

magnetron terminal and

magnetron body

Continuity

Defective

magnetron

Replace

Check resistance of primary and

secondary coil of high voltage

transformer

0 

Ω

or infinity

Defective high

voltage

transformer

Replace

Check continuity of magnetron

with wires removed

No

Continuity

Defective

magnetron

Replace

Check continuity of filament

terminal of high voltage

transformer

No

Continuity

Defective high

voltage

transformer

Replace

Check D.C. voltage being

supplied to RELAY (RY1) coil

0 V

Defective touch

control circuit

Replace

Approx

15 VDC

Faulty

contacts or

RELAY (RY1)

or open

relay coil

Replace

Содержание KOR-1A0A0A

Страница 1: ...OR 1A4H9A27 KOR 1A7G9A27 KOR 1A8Q0A KOR 1A9H9A KOR 1A9H9A27 S M No R1A1G0A005 Dec 2005 Caution In this Manual some parts can be changed for improving their performance without notice in the parts list...

Страница 2: ...tive or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before...

Страница 3: ...the oven operates with the door open the service person should tell the user not to operate the oven and contact the manufacturer immediately IMPORTANT The wire in this mains lead coloured in accorda...

Страница 4: ...LS CAVITY VOLUME 1 1 Cu Ft SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2 SPECIFICATIONS 2 KOR 1A4G H MODEL KOR 1A0A 1A1G 1A1H POWER SUPPLY 120V 60Hz SINGLE PHASE WITH GROUNDING MICROWAVE 1400W...

Страница 5: ...ONS 10 LEVELS CAVITY VOLUME 1 1 Cu Ft SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 4 KOR 1A8Q MODEL KOR 1A7G POWER SUPPLY 120V 60Hz SINGLE PHASE WITH GROUNDING MICROWAVE 1400W POWER GRILL CONSU...

Страница 6: ...VE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 539 x 300 x 409 mm 21 2 x 11 8 x 16 1 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 8 Kg 34 9 lbs TIMER...

Страница 7: ...6 3 EXTERNAL VIEW 1 OUTER DIMENSION 1 KOR 1A0A 1A1G H 2 KOR 1A4G H...

Страница 8: ...7 3 KOR 1A7G 4 KOR 1A8Q...

Страница 9: ...8 5 KOR 1A9H...

Страница 10: ...of cooking foods 5 OVEN LAMP Automatically turns on during oven operating 6 SAFETY INTERLOCK SYSTEM 7 CONTROL PANEL 8 GLASS COOKING TRAY Made of special heat resistant glass The tray must always be in...

Страница 11: ...wing of food Microwave cannot pass through perforations in screen 4 SPATTER SHIELD Protects the microwave outlet from splashes of cooking foods 5 OVEN LAMP Automatically turns on during oven operating...

Страница 12: ...tors and present time are displayed 3 3 One touch Used to cook or reheat specific quantities of food 4 4 More Used to add time to cooking 5 5 Less Used to remove time from cooking 6 6 Auto Defrost Use...

Страница 13: ...time to cooking 6 6 Less Used to remove time from cooking 7 7 Auto Defrost Used to defrost foods for weight 8 8 Power Used to set power level 9 9 Defrost Used to defrost foods for time 0 0 Kitchen Ti...

Страница 14: ...5 Less Used to remove time from cooking 6 6 Auto Defrost Used to defrost foods for weight 7 7 Power Used to set power level 8 8 Defrost Used to defrost foods for time 9 9 Kitchen Timer Used as a minut...

Страница 15: ...f food 4 4 Quick cook Used to cook or reheat 5 5 More Used to add time to cooking 6 6 Less Used to remove time from cooking 7 7 Auto Defrost Used to defrost foods for weight 8 8 Power Used to set powe...

Страница 16: ...of approximately 12 amperes 120Volts 60Hz grounded outlet Power supply cord is about 0 8 meters long 1 A short power supply cord is provided to reduce the risks resulting from becoming entangled in or...

Страница 17: ...ore If the oven door is opened during the oven operation all information is retained 10 If the Start pad is touched and the oven does not operate check the area between the door and door is closed sec...

Страница 18: ...12A fuse is blown out due to the operation of the monitor switch replace primary interlock switch secondary interlock switch and interlock monitor switch 5 After repair or replacement of parts make s...

Страница 19: ...eplacing the door assembly perform a check of correct alignment with the hinge and cavity front plate e e h h h h h h e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Страница 20: ...970 KOR 1A9H9A 27 A03 3515202900 STOPPER HINGE T AS KOR 121M0A 1 A04 3511711300 DOOR PAINTING AS KOR 1A1G0A 1 A05 3517005800 BARRIER SCREEN I PE 1 A06 3512301900 GASKET DOOR PP 1 A07 3513100700 HOOK P...

Страница 21: ...1 A07 3512603301 HANDLE DOOR U ABS SG 175 1 A08 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 2 A09 3517005800 BARRIER SCREEN I PETP T0 1 1 A10 3512301900 GASKET DOOR PP 1 1 Remove the gasket door from d...

Страница 22: ...07 3512602700 HANDLE DOOR U ABS XR 401 H 2938 1 A08 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 2 A09 3517005800 BARRIER SCREEN I PETP T0 1 1 A10 3512301900 GASKET DOOR PP 1 1 Remove the gasket door fr...

Страница 23: ...h the door to contact the door seal to oven front surface Tighten two screws NOTE A small gap may be acceptable if the microwave leakage does not exceed 4mW cm2 e e h h h h h h e e e e e e e e e e e e...

Страница 24: ...0A 3518522100 KOR 1A1G0A KOR 1A1G0A B01 3518522110 SWITCH MEMBRANE KOR 1A1H0A 1 KOR 1A1H0A 3518570980 KOR 1A8Q0A KOR 1A8Q0A 3518523740 KOR 1A9H9A KOR 1A9H9A 3516722330 ABS AF 345 KOR 1A0A0A 3516722300...

Страница 25: ...y B01 B02 B03 B04 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3518522130 SWITCH MEMBRANE KOR 1A4G0A 1 3518522140 KOR 1A4H0A 1A B02 3516722320 CONTROL PANEL ABS AF 315 345 HFA 700HT 1 B03 PK...

Страница 26: ...ithout the metallic gasket plate which is packed with each magnetron to prevent microwave leakage Whenever repair work is carried out on magnetron check the microwave leakage It shall not exceed 4mW c...

Страница 27: ...Draw forward the wind guide assembly 4 Pull the fan from the motor shaft 5 Remove two screws which secure the motor shaded pole 6 Remove the motor shaded pole 7 Reverse the above steps for reasembly...

Страница 28: ...hten completely a mounting screw ADJUSTMENT Interlock monitor switch When the door is closed the interlock monitor switch should be changed NO condition before other switches are closed When the door...

Страница 29: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Страница 30: ...e Display do not shown countdown Malfunction of secondary interlock switch Replace Check continuity of power supply cord Open power supply cord No Continuity Replace Defective touch control circuit No...

Страница 31: ...lace Connect megger leads to magnetron terminal and magnetron body Continuity Defective magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or infinity Defec...

Страница 32: ...table motor do not stop although cooking is finished Check if the RELAY 2 contacts close if they are close replace touch control circuit NOTE Before following the particular steps listed above in the...

Страница 33: ...to table as following Heating time is measured while the microwave generator is operating at full power The filament heat up time for magnetron is not included 6 The initial and final temperature of...

Страница 34: ...net 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...

Страница 35: ...ter 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...

Страница 36: ...35 10 WIRING DIAGRAM 1 KOR 1A1G H 9A27 1A7G9A27 1A9H9A27 1A1H9A37 1A4H9A27...

Страница 37: ...36 2 KOR 1A0A0A 1A1G H 0A 1A4G H 0A 1A8Q0A 1A9H9A...

Страница 38: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e g g g g g g NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to...

Страница 39: ...38 Measure Point...

Страница 40: ...the door is opened during operation the count down timer does not stop refer to Circuit Diagram Point 1 Check method 5 When the digital clock does not operate properly refer to Circuit Diagram Point...

Страница 41: ...40 2 PCB CIRCUIT DIAGRAM...

Страница 42: ...15 RESISTOR R1 R5 1 6W 330 5 RD AZ331J 7 16 RESISTOR R8 10 12 14 22 1 6W 1K 5 RD AZ102J 5 17 RESISTOR R11 20 21 1 6W 100K 5 RD AZ104J 3 18 RESISTOR R13 1 6W 100 5 RD AZ101J 1 19 RESISTOR R15 17 1 6W 1...

Страница 43: ...e e e e e e e e e e e e e e e e e e e e g g g g g g NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power sourc...

Страница 44: ...43 Measure Point MP1 MP2...

Страница 45: ...n the door is opened during operation the count down timer does not stop refer to Circuit Diagram Point 1 Check method 5 When the digital clock does not operate properly refer to Circuit Diagram Point...

Страница 46: ...45 2 PCB CIRCUIT DIAGRAM...

Страница 47: ...5C 1CPMC7805C 1 17 LED DISPLAY DP1 DDG 611Q DDDG611Q00 1 18 PCB MAIN M152 81 5X139 9 3514315400 1 19 R ARRAY RA1 7P 6 1 8 100K J RA 87X104J 1 20 RESISTER R12 1 6W 100 5 RD AZ201J 1 21 RESISTER R11 15...

Страница 48: ...47 1 DOOR ASSEMBLY Refer to Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3 TOTAL ASSEMBLY 12 EXPLODED VIEW AND PARTS LIST...

Страница 49: ...H 9A27 1A7G9A27 1A9H9A27 F03 3516110400 CAVITY AS KOR 1A1G0A 1 F04 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 1 F05 7122401211 SCREW TAPPING T2S TRS 4 12 MFZN 1 F06 7112401011 SCREW TAPPING T1 TRS 4 1...

Страница 50: ...F31 4415A66910 SW MICRO VP 531A OF SZM V16 FA 61 1 F32 3518571000 SWITCH PUSH MP101C 1 3513702600 POM KOR 1A0A 1A1G H F33 LEVER LOCK 1 1A8Q 1A9H 3513702610 POM KOR 1A4G H 1A7G 3513811700 POM KOR 1A0A...

Страница 51: ...S M NO 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 Dec 2005...

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