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7. Wiring Diagrams

7-1 Wiring Diagrams

(This Document can not be used without Samsung’s authorization)

RED

RED

BRN

BLK

FA

F

HIG
H

VOLTAGE

TRANSFORMER

H.V.FUSE

HIG
H

VOLTAG

E

CAPACITOR

HIG
H

VOLTAGE

DIODE

TO

CHASSIS

MAGNETRON

SYMBO

L
COLOR

OR
G

ORANGE

BR

N

BROWN

RE

D

RED

BL

U

BLUE

RED

RED

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Содержание M187ASTR

Страница 1: ...over for the more information 1 Precaution 2 Product Specification 3 Disassembly and Reassembly 4 Troubleshooting 5 Exploded Views and Part List 6 PCB Diagrams 7 Wiring Diagrams 8 Schematic Diagrams BASIC M187ASTR MODEL M187ASTR MODEL CODE M187ASTR SBW ...

Страница 2: ...3 Replacement of Door Assembly 12 3 4 Replacement of Drive Motor 13 3 5 Replacement of Control Circuit Board 14 4 Troubleshooting 15 4 1 Error Code Numbering Rule 15 4 2 Error Code List 15 4 3 Electrical Malfunction 17 5 Exploded Views and Parts List 36 5 1 Exploded Views 36 5 2 Main Parts List 37 5 3 Door Parts List 38 5 4 Control Parts List 39 5 5 Standard Parts List 40 6 PCB Diagrams 41 6 1 PCB...

Страница 3: ... 1 Precaution ...

Страница 4: ...k Monitor Switch Replace all of the following at the same time Primary door sensing switch and power relay as well as the Interlock Monitor Switch The correct adjustment of these switches is described elsewhere in this manual Make sure that the fuse has the correct rating for the particular model being repaired 13 Design Alteration Warning Use exact replacement parts only i e only those that are s...

Страница 5: ...ained within specified limits by close tolerance safety related components and adjustments If the high voltage exceeds the specified limits check each of the special components H V Diode Short H V Capacitor PRECAUTION There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH VOLTAGE TRANSFORMER secondary and filament terminals It is extremely dangerous to wor...

Страница 6: ...50Hz Power consumption Microwave 1250W 1250W Output power 100W 850W 100W 850W Operating frequency 2450MHz 2450MHz Magnetron OM75P 31 OM75P 31 Cooling Method Cooling Fan Motor Cooling Fan Motor Dimension W x H x D Outside 489 x 275 x 401 5 mm 489 x 275 x 401 5 mm Oven cavity 330 x 211 x 329 mm 330 x 211 x 329 mm Volume 23liter 23liter Weight Net 13 5Kg 13 5Kg Export zone Russian Federation Ukraine ...

Страница 7: ... 2 Specifications 2 3 Accessory Item Description Code No Q ty Coupler DE67 00140A 1 Assy Guide Roller DE97 00193B 1 Tray cooking DE74 20102D 1 Assy Steam Bowl DE96 00168A 1 ...

Страница 8: ... 1 Disconnect all lead wires from the magnetron and lamp 2 Remove a screw securing air cover 3 Remove the air cover 3 1 Disassembly of Magnetron Motor Assembly and Lamp Remove the magnetron including the shield case permanent magnet choke coils and capacitors all of which are contained in one assembly ...

Страница 9: ...plaination Magnetron Motor Assembly and Lamp 4 Remove screws securing the magnetron to the wave guide 5 Take out the magnetron very carefully 6 Remove two screws from the back panel 7 Take out the fan motor 3 1 Disassembly of Magnetron Motor Assembly and Lamp ...

Страница 10: ...not hit any adjacent parts or it may be damaged NOTE2 When replacing the magnetron be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition 3 2 Replacement of High Voltage Trancefomer Parts Explaination Photo Explaination High Voltage Transformer 1 Discharge the high voltage capacitor 2 Disconnect all the leads 3 1 Disassembly of Magnetron Motor...

Страница 11: ... and firmly PRECAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron PRECAUTION There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGHVOLTAGE TRANSFORMER secondary and filament terminals It is extremely dangerous to work on or near these circuits with the oven energized DO NOT measure the voltage in the high vo...

Страница 12: ...into gap between Door A and Door C to remove Door C because it is fragile Then remove door assembly Removal of Door Assembly Lift up the Door Assembly from Cavity Removal of Door E Following the procedure as shown in the figure insert and bend a thin metal plate between Door E and Door A until you hear the tick sound Insertion depth of the thin metal plate should be 0 5mm or less Removal of Key Do...

Страница 13: ...ve sharp edge after cover removal 3 Disconnect leads from motor 4 Remove the screws securing motor to bottom of over cavity Drive Motor 6 Lift out the motor 5 When replacing the motor be sure to remount it in the correct position NOTE The shaft of motor should fit tip coupler COVER FIXING SCREW MATCHINE SCREW 6006 001170 6 When reassemble a drive motor cover give a turn in a 180 and fix with a scr...

Страница 14: ...tic electric charge in your body and never touch the control circuit 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control box assembly 4 Remove the screw securing the ground tail of the keyboard Removal of Ass y P C B SCREWS ASSY PCB 1 Remove screws securing the control circuit board 2 Lift up the control circuit board from the Ass y control box ...

Страница 15: ...Open Check Sensor part connection of sensor housing and PCB s connector 19 Page E 12 Short 20 Page E 13 T1 Max Time Error 21 Page E 14 Dry Up No Load Insert food and restart Temp Sensor Error Code Temp Sensor Error Case E 2X Solution Page E 21 Open Check sensor part and connection of sensor housing and PCB s connector 19 Page E 22 Short 20 Page E 23 T1 Max Time Error Preheating not completed Check...

Страница 16: ...sensor and restart 25 Page E 46 Primary Open Error 3minutes Check Sensor 19 Page E 47 The door opens during cooking Cancel the present mode and restart from the begining 24 Page Humidity Sensor Error Code Humidity Sensor Error Case E 6X Solution Page E 61 Open Check Sensor 19 Page E 62 Short 20 Page E 63 T1 Max Time Error 21 Page Others Error Code Others E 0X Letter Solution Page SE Key Short Erro...

Страница 17: ...onnected Is the sensor wire connected properly Does the voltage change as the humidity temperature and weight change Replace the sensor Check if the sensor wire is damaged if the housing is loose and if the sensor and the wire are properly connected Check if the voltage of the GND and sensor changes using a digital multi meter by forcefully changing the humidity temperature and weight Connect the ...

Страница 18: ...ture and weight Check if the sensor and related parts such as the connector or soldering parts are slightly shorted Remove the shorted part of the temperature sensor Remove any foreign Substance from the shorted part YES NO YES YES NO NO YES NO E 12 E 22 E 28 E 32 E2A E 42 or E 62 is displayed Is the sensor shorted The sensor is out of order Replace the sensor Perform the operation again and check...

Страница 19: ... the sensor or is something acting as an obstacle in front of the sensor Does it heat with completely dried food Replace the sensor If the sensor is contaminated by a foreign substance it may fail to detect the humidity Since heating completely dried food may burn the food take care Insert food and heat it again Place food with moisture into it and heat it again Remove the an foreign substance or ...

Страница 20: ...n again and check if it is working properly S W Error Is a specific key not recognized Is the key recognized intermittently The membrane is defective Replace the Control Panel Is the key not recognized at all After Power On does the symptom continue Replace the PCB 4 3 4 Key Short Error ...

Страница 21: ...e weight sensor contaminated by any foreign substance Replace the sensor Check if the turntable turns abnormally because food is placed on one side only or if it turns irregularly or if it is slanted and the weight sensor is not pressed Place the turntable over the roller properly YES Remove the foreign substance Place the food in the center Has the turntable been placed over the roller properly 4...

Страница 22: ...nd if it is opened or shorted intermittently Close the door Check the Door S W and the housing Was the door open during the operation Perform the operation again and check if it is working properly S W Error Is the door sensing part normal After Power On does the symptom continue Replace the PCB 4 3 6 Weight Sensor Error ...

Страница 23: ...erminal is maintained over 3V continuously during the initial cooking course using a multi meter Remove any moisture of the sensor Check the sensor terminal and housing Replace the sensor YES NO YES NO YES NO YES NO E 45 is displayed Is the sensor wet S W Error Replace the PCB After Power On does the symptom continue Perform the operation again and check if it is working properly 4 3 7 Cooling Err...

Страница 24: ...M 단자가 Open Short 되었는가 YES NO NO EEPROM이 삽입 되었는가 S W 오동작 YES YES YES NO E 51 E 53 or E 54 is displayed Has the EEPROM been inserted Is the EEPROM terminal opened or is there a short circuit EEPROM Defect Replace the EEPROM Does it work properly Perform the operation again and check if it is working properly S W Error After Power On does the symptom continue Replace the PCB 4 3 8 EEPROM Error ...

Страница 25: ...vider inserted Is it Upper Lower Mode Is the Divider detection S W out of order Is the Divider detection S W connected properly Are the connections in the Main PCB normal Connect correctly Connect correctly wire S W Error After Power On does the symptom continue Replace the PCB Perform the operation again and check if it is working properly Remove the Divider 4 3 9 Divider Missing Error ...

Страница 26: ...for the corresponding internal temperature Is it temperature 100 C in oven Is it temperature 105 C 240 C in oven Is it temperature 245 C in oven Does same error arise S W Error S W Error Does same error arise Does same error arise Has it worked for 8 hours continuously Has it worked for 6 hours continuously Has it worked for 4 hours continuously Turn the oven off and let it cool sufficiently After...

Страница 27: ...pair the short circuit Is the temperature of the PCB over 90 C An E 2b error occurred Insert the temperature sensor An E 0b error occurred Check the Motor drive part Is the Cooling Motor rotating The temperature sensor is out of order Replace the temperature sensor Perform the operation again and check if it is working properly S W Error After Power On does the symptom continue Replace the PCB 4 3...

Страница 28: ...ES NO YES NO E 08 E 23 E 26 is displayed Is the heater temperature very low Is the temperature sensor connected properly Is the resistance between the heater terminals more then a few MΩ Check the heater related drive part Replace the heater Reconnect the temperature sensor properly Replace the heater Does the heater work S W Error After Power On does the symptom continue Replace the PCB Perform t...

Страница 29: ...l the current state Press the Cancel key to cancel the current state Is this happening during the MW operation Is it happening during the Grill operation Is it happening during the Convection operation Over Time is set Over Time is set Over Time is set Over Time is set Is it happening during the Combination operation Since the max time may differ depending on the model refer to the IB For example ...

Страница 30: ...Has the oven internal temperature reached over 350 degrees Is the temperature sensor connectivity normal Is the temperature sensor connectivity normal An E 09 error occurred An E 24 E 0A error occurred Reconnect the temperature sensor properly Check and repair the heater drive part if necessary S W Error After Power On does the symptom continue Replace the PCB Perform the operation again and check...

Страница 31: ...ck if it is working properly Is the oven in MW mode Is the internal temperature over 200 degrees Is the sensor connectivity normal An E 25 error occurred Press the Cancel key Connect it properly and try again After Power On does the symptom continue Press the Cancel key to cancel the current state 4 3 15 Swing Heater Detection Error ...

Страница 32: ...he oven in Bake Toast mode Has the switch heater operated for 20 seconds Has the micro switch been detected After waiting for 20 seconds check if the micro switch has been detected The micro switch is defective Replace it Connect the micro switch properly After Power On does the symptom continue Is connectivity housing of the micro switch normal 4 3 16 Swing Heater Detection Error ...

Страница 33: ...duit normal NO NO Is Primary interlock switch normal Is Power Relay normal YES YES YES YES YES YES NO NO NO YES NO NO Replace switch Do check power supply circuit Do check Relay control circuit Is high voltage dioed normal Is high voltage dioed normal Is high voltage capacitor normal Is magnetron normal NO Is the IC01 output of PCB normal NO NO Checking high voltagecircuts NO NO 4 3 17 If oven mal...

Страница 34: ...r to User Manual Menbrane type Tact type YES YES Buttons of the control panel do not work Inspection method Are button pressed in the correct order Is the connector of the control panel normal Replace PCB 4 3 18 If button malfunction ...

Страница 35: ...O Is the latch switch operating normally Food is not heated even though an oven works Inspection method Method to control latch switch Checking high voltage circuits YES 4 3 19 If food is not heated even though an oven works ...

Страница 36: ...s List 5 1 Exploded Views T001 T017 M034 M047 M048 M045 M042 M039 M040 M041 T023 M001 Z778 M015 M023 M020 M204 M019 M017 M022 W002 M036 M035 M037 M038 B018 B006 B002 B010 B001 B011 B024 M049 M051 H018 D026 X018 X104 T070 X105 M155 ...

Страница 37: ...DE96 00371A ASSY BASE PLATE SUB M1719N CE2719N TSE 1 SA 1 3 M047 DE61 40066A FOOT PP BLK 1 SA 1 3 M048 DE80 00023A BASE PLATE MW850WA SGCC1 T0 6 NC2000 1 SA 1 1 B018 DE96 00120B ASSY BODY LATCH M1717N NC2000 HANDLE 1 SA 1 2 B002 3405 001032 SWITCH MICRO 125 250VAC 16A 200GF SPDT 1 SA MONITOR SW 1 2 B001 3405 001034 SWITCH MICRO 125 250VAC 16A 200GF SPST N 2 SA PRIMARY SW DOOR SW 1 2 B024 DE96 0012...

Страница 38: ... SA 1 2 C041 DE64 01155A BUTTON CANCEL M187ST CE287ST ABS HG0760S 1 SA 1 2 C029 DE64 01157A KNOB DIAL M187ST CE287ST ABS HG0760S 1 SA 1 2 C001 DE94 01105C ASSY CONTROL PANEL 230V49HZ M187ASTR BWT 1 SA 1 3 C133 DE64 01147C CHASSIS PANEL M187ASTR BWT STS430 T0 5 1 SNA 1 3 C005 DE64 01150A CONTROL PANEL M187ST CE287ST ABS HG0760S 1 SNA 1 3 C009 DE64 01151A WINDOW DISPLAY M187ST CE287ST SAN CR5381 1 S...

Страница 39: ... 01149A HANDLE DOOR M187ST CE287ST ABS HG0760S 1 SA 1 2 D015 DE94 00459A ASSY DOOR SUB MW850WA BLK DOOR E FILM 1 SA 1 3 D005 DE64 00221B FILM DOOR T0 13 W264 L143 NC08 1 SA 1 3 D004 DE94 00351K ASSY DOOR E COATING MW850WA BLK COATING 1 SA 1 2 D015 DE94 01104A ASSY DOOR SUB M187AST XEC NATURAL STS A 1 SA 1 3 D002 DE64 01145A DOOR A M187AST CE287AST ABS HG0760 1 SNA 1 3 D068 DE64 01148A CHASSIS DOOR...

Страница 40: ...HT 4 SNA PCB EARTH P C EARTH O PANEL N F EARTH 1 1 6006 001174 SCREW ASSY TAPP WE TH M4 L12 ZPC YEL 6 SNA C BLOWER C BOX O PANEL B LATCH B PLATE A 1 1 6006 001176 SCREW ASSY TAPT WT PH M4 L8 ZPC YEL 1 SNA D MOTOR 1 1 DE60 30016A NUT FLANGE M4 MSWR10 1 SA F MOTOR 1 2 6002 000643 SCREW TAPPING TH 2S M4 L10 ZPC YEL SW 1 SNA HANDLE DOOR 1 2 6002 000630 SCREW TAPPING PH 2S M3 L8 ZPC YEL SWR 2 SA EARTH ...

Страница 41: ...l Relay MWO Grill Heater Control Relay 5 RY05 Turn Table Relay Turn Table Control Relay 6 CN01 A Terminal for Connecting with LVT A Terminal for Connecting with LVT and SMPS Power Supply 7 CN02 A Terminal for connecting with Door S W A Terminal for Connecting with Door S W and SMPS Power Supply 8 CN03 A Terminal for Connecting with Control A Terminal for Connecting with Control and SMPS Power Supp...

Страница 42: ...RN Y G BLU L N POWER CORD 230 50Hz BLK BLU MONITOR FUSE 250V 1 6A BLU ASSY PCB BORD BLK ORG GRN GROUND ORG DOOR SENSING SWITCH INRUSH RELAY POWER RELAY SECONDARY INTERLOCK Y A L E R N I A M S N A R T V L F p 0 0 2 2 F u 1 0 H m 1 F p 0 0 2 2 A 2 1 V 0 5 2 E S U F K 0 0 5 P T C YEL 21V 0V BRN BRN BROWN RED RED BLU BLUE YEL YELLOW Y G YELLOW GREEN ORG ORANGE WHT WHITE BLK BLACK GRN GREEN SYMBOL COLO...

Страница 43: ...s This Document can not be used without Samsung s authorization RED RED BRN BLK FA F HIGH VOLTAGE TRANSFORMER H V FUSE HIGH VOLTAGE CAPACITOR HIGH VOLTAGE DIODE TO CHASSIS MAGNETRON SYMBOL COLOR ORG ORANGE BRN BROWN RED RED BLU BLUE RED RED ...

Страница 44: ...04B 1 2 3 DGND 220 R18 MM4148 D13 5V D12 MM4148 OJ01 100nF C15 11 d 10 e 9 f 8 g 7 uc_lc 6 DGND OJ04 DSP1 1G 2 2G 3 3G 4 4G 5 14 5V DOV 1 a 13 b 12 c MM4148 D07 CSE 4246G 01 GS1G D03 DGND TR06 KRC246 DGND C07 100nF 13 14 2 3 4 5 6 7 8 9 DGND CN03 12516HS 14 M 1 10 11 12 R06 1K 24V 24V 5V D01 GS1G C21 100nF BD01 DF06S 5V C10 1nF DGND R26 20M 5V 47K R12 C04 47uF 100nF C08 FTR JRJC024W RY04 DGND 24V ...

Страница 45: ...ungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe europe samsungportal com China china samsungportal com Asia asia samsungportal com Mideast Africa mea samsungportal com Samsung Electronics Co Ltd April 2007 Printed in Korea Code No DE68 04433A ...

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