Daewoo KOR-616T2S Service Manual Download Page 22 | Manualshive

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21

POWER SUPPLY:

SINGLE PHASE ONLY

FILTER ASS’Y

FUSE

BR(BK)

BL(WH)

GE(GN)

L

N

N

L

GN

GN

BL

BL

BL

RD

RD

WH

BK

D.O.M. SWITCH

SECONDARY

INTERLOCK SWITCH

RELAY-2

RELAY-1

CONTROL P.W.B. ASS’Y

RD

WH

COM

NO

NC

PRIMARY

INTERLOCK

SWITCH(UPPER)

INTERLOCK

MONITOR

SWITCH

RD

HIGH VOLTAGE

TRANSFORMER

RD

RD

H.V.

CAPACITOR

MAGNETRON

H.V. DIODE

GY

GY

GY

WH

GY

GY

GY

CL

GM

FM

NOTE

RD

:

RED

OR

:

ORANGE

CL

:

CAVITY LAMP

(CONDITION)

WH

:

WHITE

BL

:

BLUE

FM

:

FAN (BLOWER) MOTOR

DOOR : CLOSED

BK

:

BLACK

GY

:

GRAY

GM

:

GEARED MOTOR

COOK : OFF

GN

: GREEN

GE

:

GREEN/YELLOW

BR

:

BROWN

2

3

1

L

R

H.V.

FUSE

WIRING DIAGRAM

Fig. 1

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Summary of Contents for KOR-616T2S

Page 1: ...Service Manual Microwave Oven Model KOR 616T2S KOR 816T2S DAEWOO ELECTRONICS CO LTD...

Page 2: ...interlock 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...

Page 3: ...ase soil or spatter should be allowed to build up on these surfaces or inside the oven DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN The microwave oven has concealed switches to make sur...

Page 4: ...379 mm CAVITY DIMENSIONS W x H x D 320x 225 x 330 mm 290x 200 x 290 mm NET WEIGHT APPROX 15 0Kg APPROX 13 5Kg TIMER 60 min 00 sec POWER SELECTIONS 5 LEVELS 495 409 289 Stop Defrost 1 2 Weight Quantit...

Page 5: ...k system 6 Door viewing screen Allows viewing of food The screen is designed so that light can pass through but not the microwaves 7 Glass cooking tray Made of special heat resistant glass Food in a p...

Page 6: ...maged must be repaired with cable of same type Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person Examine the oven after unpacking for any damage such as A misaligne...

Page 7: ...he START pad is touched and the oven does not operate check the area between the door and door seal for obstructions and make sure the door is closed securely The oven will not start cooking until the...

Page 8: ...ugged the clock will have to be reset for the proper time Once power is restored or oven is plugged in the display will show 0 00 To reset the time of day repeat the steps given below To check the tim...

Page 9: ...e For example 20 minutes 20 00 will show in the display Time 3 Press button The TIME DEFROST indicator light will start blinking to show the oven is in TIME DEFROST mode Time NOTE During the defrostin...

Page 10: ...ator light will start blinking to show the oven is in WEIGHT DEFROST mode Weight NOTE During the defrosting operation turn over the food after buzzer sound for completed defrosting NOTE This digital w...

Page 11: ...CROWAVE mode Stage 1 NOTE To insure the best microwave and defrost results be sure to start with a cool oven Let the oven cool 15 20minutes with the door slightly open Power levels are 900W 700W 500W...

Page 12: ...how in the display 1 Stage 3 Press POWER button By repeatedly pressing this button you can also select other power levels For example KOR 616T The STAGE2 indicator light will light The WATT indicator...

Page 13: ...e end of stage 1 the oven will beep and start the second stage 2 The STAGE1 indicator light will go off and the STAGE2 indicator light starts blinking The display counts down the time to show you how...

Page 14: ...esired cooking quantity Auto cook 5 Select the desired cooking quantity For example 3 350g 3 will show in the display Auto cook 3 If you want to select other menu press AUTO COOK button until display...

Page 15: ...l Knob until display you desired 8 Buzzer will sound at the end of the cooking time The indicator light will go off The display panel will return to the time of day The oven light will turn off and th...

Page 16: ...ll indicators are lighted setted function Indicator of operating function is blinking SPEEDY COOK 1 min CHILD SAFTY LOCK SETTING THE CONTROL NOTE This key is increased from 30 seconds to 5 minutes If...

Page 17: ...ods rather than to over cook them If a range of times is stated in a recipe cook the minimun suggested time check for doneness and then cook slightly longer if necessary NOTE Oven stops operating when...

Page 18: ...cks the oven door If the door is not closed properly the oven will not operate When the door is closed the hook pushes the button of the micro switch Then the button of the primary interlock switch br...

Page 19: ...to the following diagram 2 Check the connection of monitor switch after replacement 3 Perform the electrical continuity check of interlock switches and microwave emission test mentioned in this manua...

Page 20: ...er is added to the vessel After addition of the water to the vessel 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...

Page 21: ...ergy survey meter with dual ranges set to 2 450 MHz Measured radiation leakage must not exceed the values prescribed below Leakage for a fully assembled oven with door normally closed must be less tha...

Page 22: ...RD WH COM NO NC PRIMARY INTERLOCK SWITCH UPPER INTERLOCK MONITOR SWITCH RD HIGH VOLTAGE TRANSFORMER RD RD H V CAPACITOR MAGNETRON H V DIODE GY GY GY WH GY GY GY CL GM FM NOTE RD RED OR ORANGE CL CAVIT...

Page 23: ...IMARY INTERLOCK SWITCH UPPER INTERLOCK MONITOR SWITCH RD HIGH VOLTAGE TRANSFORMER RD RD H V CAPACITOR MAGNETRON H V DIODE GY GY GY WH GY GY GY CL GM FM NOTE RD RED OR ORANGE CL CAVITY LAMP CONDITION W...

Page 24: ...ools the magnetron by blowing the air coming from the intake on the rear plate hole 3 The oven lamp light the inside of the oven 4 Indicator light turns on to indicate function operation Cooking time...

Page 25: ...ave oven from power level 1 to 5 100 power One complete ON and OFF cycle of the RELAY 1 is 29 seconds The relation between indications on the control panel and the output of the microwave oven is as s...

Page 26: ...pen the display stops counting down 3 Fan motor and turn table stop rotating 4 The oven lamp turns off 5 As soon as the door is opened the interlock monitor switch contacts close and creats the short...

Page 27: ...e 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 or checking parts short betwee...

Page 28: ...3 and door assembly 3 from top plate of cavity 3 Remove the stopper hinge top 3 from door assembly 4 Reverse the above for reassembly taking care to replace fixing glue 3 To remove door parts DISASSE...

Page 29: ...hinge stopper and then the door to contact the door seal to oven front surface 2 Tighten three screws 3 To reduce gap located on part C See Fig A 1 Loosen a screw on the interlock switch assembly loca...

Page 30: ...y B10 4 Remove the PCB ass y B10 from the control panel B02 5 Remove the button cook B04 the button auto cook B09 the button start B03 and the button function B08 from the control panel B02 6 Remove...

Page 31: ...r holder 3 2 Remove the H V diode 2 from the capaci tor holder 3 3 Remove the above steps for reassembly High voltage circuit wiring 7 To remove magnetron 1 Remove three screws 1 which secure the magn...

Page 32: ...H V transformer 2 2 Remove the transformer 2 3 Reverse the above steps for reassembly 5 4 2 1 3 1 Magnetron antenna Metallic gasket plate Cooling fin Magnetron Filament terminal 2 1 Wave guide Magnet...

Page 33: ...numbers is in the display 3 One or more digits in the display are not on when they should be 4 Display indicates a number different from one setted For example when 5 00 setted 3 00 appears in the di...

Page 34: ...ontinuity Malfunction of interlock switch Check continuity of primary interlock switch contact with door partially open unit interlock monitor switch contact close COM NC close Shorted contacts of pri...

Page 35: ...o not turn on Check continuity of primary interlock switch No Continuity Malfunction of Primary interlock switch Adjust or replace Approx 24VDC Faulty contacts of RELAY RY2 open relay coil Replace Def...

Page 36: ...Defective touch control circuit Replace Check continuity of high voltage recitifier in forward and backward direction with DC meggr Check continuity of filament terminal of high voltage transformer Ch...

Page 37: ...Between 14 and 10 NOTE Before following the particular steps listed above in the trouble shooting guide for failure please check for the continuity of each wire harness between the tact switch keyboa...

Page 38: ...higher voltage batteries should be used to check the front back resistance of the diode otherwise an infinite resistance may be read in both directions Anormal diodes resistance will be infinite in on...

Page 39: ...zero resistance ohmmeter Fig a Condition 1 Door is opened 2 Common terminal of the monitor switch disconnected 3 In case of secondary interlock switch ohmmeter Fig c Condition 1 Door is closed 2 In ca...

Page 40: ...table tolerance of the secondary voltage is within 5 of norminal voltage NOTE Each measure point must be measured with GND points 2 Voltage check Key check point MICOM PIN NO CHECK POINT REMARK 1 PIN...

Page 41: ...4 7 1 SEGMENT a does not come on from G1 to G5 SEGMENT d 19 8 SEGMENT b does not come on from G1 to G5 SEGMENT e 18 7 SEGMENT c does not come on from G1 to G5 SEGMENT f 16 5 SEGMENT d does not come o...

Page 42: ...41 FIG 5 MEASUREMENT POINT MP2 MP3 MP1...

Page 43: ...42 FIG 5 MEASUREMENT POINT...

Page 44: ...ON OFF of the secondary Replace secondary interlock switch by resistance measurement interlock switch 36 MICOM RY1 D8 24V Q11 A B 40 MICOM A 5V B R8 R11 SW D O M R7 C3 1 2 CHECK METHOD CHECK METHOD 5...

Page 45: ...clock does not operate properly 44 C8 D10 R26 R24 R27 A B 5V C C6 Q8 C4 MICOM D12 D11 D13 D14 8 9 R21 R23 POINT WAVEFORM A B C T 20 ms 50Hz If clock does not keep exact time you must check Diode D10...

Page 46: ...1 PCB Circuit Diagram 45 2 P C B CIRCUIT DIAGRAM...

Page 47: ...46 2 Transistor NPN Type 3 Diode and zener diode Emitter Collecftor Base Cathode k Cathode k ANODE A D1 16 ANODE A ZD1 6 DIODE ZENER DIODE...

Page 48: ...47 3 PRINTED CIRCUITS BOARD...

Page 49: ...48...

Page 50: ...C9 50V 0 1uF Z CCKF1H473Z 8 18 C CERAMIC C6 50V 0 047uF Z CCKF1H104Z 1 19 C ARRRAY CA1 50V 1000PF 5P CN4XB 102M 1 20 DIODE ZENER D1 D5 D10 1N4148 DZN4148 6 21 DIODE RECTIFIER D8 D9 D11 D14 1N4002A DZN...

Page 51: ...OATING 85801052GY 10MM 16 47 JUMPER WIRE J1 J2 J10 J11 J12 1 0 52 TIN COATING 85801052GY 5MM 5 NO PART NAME SYMBOL SPECIFICATION PARTCODE Q TY 1 PCB SUB M157 M157 3514313861 1 2 LED L102 SLR 34VR DSLR...

Page 52: ...KOR 816T 3515304600 KOR 616T A04 STOPPER HINGE T AS 3515201500 KOR 61150S 1 A05 DOOR PAINTING AS 3511706520 KOR 81250S 1 KOR 816T 3511706100 KOR 61150S KOR 616T A06 BARRIER SCREEN I 3517002900 PE 0 1...

Page 53: ...0 KOR 616T B03 BUTTON START 3515101600 ABS 1 MILKY B04 BUTTON FUNCTION COOK 3516905700 ABS 1 B05 SCREW TAPPING 7621301011 T2S PAN 3X10 PW MFZN 9 B06 WINDOW DISPLAY 3515500910 PMMA 1 KOR 816T 351550081...

Page 54: ...53 3 Main Unit...

Page 55: ...ADED POLE 3963512100 MW10GA R01 1 F19 FAN 3511800300 PP 30 GLASS 1 F20 SCREW TAPTITE 7272400811 TT3 TRS 4X8 MFZN 1 F21 HOLDER HV CAPACITOR 3513001900 SECC T0 8 1 F22 CAPACITOR HV 4415T66300 2100VAC 0...

Page 56: ...S001 DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 02 360 8184 TEL 02 360 8183 http www dwe daewoo co kr PRINTED D...

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