EM-X471 s SERVICE MANUAL EM.x471 Ys EM-X471 us EM
Contents
1. KITCHEN FROZEN FRESH my ENYD START veGETABLEPVEGETABLE OPTIONS 9 CLOCK Measure the voltage Between test points TP 1 TP 2 TP 3 or TP 4 and ground between TP 5 and TP 6 See control circuit board on page 9 POTATO TERMINALS OF FPC CONNECTOR Figure 2 OOOOOPP amp O Test 22V 25V 37V DC DC DC DC Test TP 5 T LE CONTROL CIRCUIT BOARD NOTE Proceed with the check of the step down transformer to see if any one of the measured values is different from the specified values Filament Windings CAUTION DISCONNECT THE POWER SUPPLY CORD FROM THE WALL OUTLET WHENEVER REMOVING THE CABINET FROM THE UNIT PROCEED WITH THE TESTS ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE LEAD WIRES FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER SEE FIGURE 3 Secondary Windings Figure 3 Primary A TEST PROCEDURES Windings COMPONENT 1 Check for resistance Across the filament Normal reading terminals of the magnetron with an ohm Less than 1 ohm meter on R x 1 scale Ohm meter MAGNETRON 2 Check for resistance Between each fila Normal reading ment terminai of the magnetron and the Infinite ohms chassis ground with an ohmmeter on high est scale Ohm meter Figure 5 1 Measure the resistance Normal readings With2. an ohm meter on R x 1 scale a Primary winding Approximately 1 53 ohms b Filament winding Less than 1 ohm c Secondary winding Approximately 97 2 ohms 2 Measure the resistance Normal readings With an ohm meter on highest scale a Primary winding to ground Infinite ohms HIGH VOLTAGE b Filament winding to ground Infinite ohms TRANSFORMER Ohm meter Note Remove varnish of measured point 5 EXPLODED VIEW AND PART LIST CAVITY PARTS 1 Sc ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK ES 1 1 1 1 1 2 3 4 5 6 7 8 9 1 NOTE Also order Circuit Diagram when replacing Cabinet Part No Description 617 214 9172 617 224 2262 617 224 2125 617 224 4082 617 214 9998 411 082 5201 411 160 6007 617 225 0724 617 204 9366 617 151 2458 411 010 5808 617 138 5601 617 221 6089 Cabinet EM X471S Cabinet EM X471YS Cabinet EM X471US Cabinet EM X471SS Cabinet EM X471BS SCR TPG TRS 4x 10 Z1 SCR TPG TRS SRT 4 x 10 Z1 Power Cord Oven Cavity Not Service Part Gear Motor SCR EVR PAN 4 x 10 Z1 Bottom Plate Not Service Part Plastic Foot with Canoe Clip h OO AA AA ak Ao Maa Description 411 011 0802 617 180 6137 411 089 2500 617 120 8481 617 144 4476 617 204 9489 617 07
3. y with Diode Space Partition Blower H V Capacitor including Resistor 1 10uf 2 5KV Capacitor Band Bolt Hex 4 x 10 Z1 Duct Magnetron Exhaust Lamp 240V 25W Lamp Socket Blower Motor SCR TPG TRS 4 x 10 Z1 dad od ad ad ad ad ad ad OD NAAR rs 617 196 8507 617 124 1181 617 221 4078 617 221 4061 617 221 4078 617 124 1174 411 102 5907 617 117 3505 617 124 3796 411 001 4704 411 160 6106 Blower Fan Latch Lever Micro Switch Primary Interlock AM51630C53F2 Micro Switch Interlock Monitor AM50620C53 Micro Switch Door Sensing AM51630C53F2 Lever Stopper SCRETGTRS 4x10 N2 Harness Door Sensing Lead Wire Ass y SCR S T PAN 4 x 10 Z1 SCR 5 TRS SRT 4 x 10 Z1 DOOR PARTS a ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A GUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK xxx de he Part No Description Key Part No Description Q ty 1 617 207 6294 Door Cover EM X471S 1 617 205 7163 Door Main Frame Also order 1 1 617 224 2286 Door Cover EM X471YS 1 d 2 E 1 617 224 2149 Door Cover EM X471US 1 617 124 0948 Choke Dielectric 1 1 617 224 4105 Door Cover EM X471SS 1 617 124 0931 Door Sheet 1 1 617 210 7271 Door Cover EM X471BS 1 411 054 1903 Nut Hex
4. 2 5639 Carbon 1K ohms 596 1 4W R15 102 108 109 116 401 012 6953 Carbon 10K ohms 5 1 4W 405 004 3010 2SA564A O TP R128 130 13 401 012 8056 Carbon 100K ohms 5 405 082 9 DTA123YS TP 405 000 1812 DTA143XS TP 401 013 6338 R16 52 55 58 Carbon 12K ohms 5 405 035 4819 401 016 2555 Carbon 220 ohms 5 VaW 2SC1685 O TP R13 14 405 000 3113 DTC114ES TP R105 401 016 3750 Carbon 2 2K ohms 5 405 000 5612 DTC143XS TP R104 106 401 016 4757 Carbon 22K ohms 5 1 4W 407 012 0220 1N4002 TP R111 112 401 016 9653 Carbon 27 ohms 5 407 012 6 1SS133 TP R115 401 017 1735 Carbon 2 7K ohms 5 407 051 4415 GZS13Y AT1 R110 401 018 2751 Carbon 330 ohms 5 1 4W 407 057 0510 RD5 6ESB3 407 160 6713 RD27ESB1 R113 401 018 3738 Carbon 3 3K ohms 5 1 4W 407 132 2316 HZS3 9NB2 R117 122 401 020 1957 Carbon 4 7K ohms 5 4W R103 53 401 020 2835 Carbon 47K Ohms 5 1 4W 403 002 4728 Ceramic 0 1mfd 5 25V R12 401 021 2953 Carbon 5 6K ohms 596 403 069 8355 Ceramic 0 01mfd 4 576 50V 403 14
5. 3 5889 617 204 9403 617 162 1938 411 069 1707 411 006 6604 617 200 0381 617 080 5315 411 160 6106 Bolt Hex SW 5 x 14 Z1 Hinge Lower Washer F5 x 10 x 0 8 Insulation Sheet Turn Table Shaft Roller Rotating Tray Antenna Complete Cavity Cover SCR TPG TRS 4x6 DA SCR TPG PAN 3x6 Z1 Thermal Fuse 167 C Special Washer SCR 5 TRS SRT 4 x 10 Z1 AA AA EA SWITCHES AND MICROWAVE PARTS Parts marked with this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special characteristics important for microwave leakage When replacing any of these parts use only manufacturers specified parts TER ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK xxv Part No Description Part No Description zZ o SOO YOO bb OQ MN AO 411 082 5201 617 208 0260 617 199 8283 411 006 6604 617 124 1235 415 002 6101 423 022 7503 617 213 3416 617 225 8553 617 162 1990 617 212 9013 617 182 2373 411 011 5609 617 198 4996 617 110 3618 617 124 1280 617 167 0592 411 082 5201 SCRTPG TRS 4 x 10 Z1 H V Transformer YS X670SAP Stay Cavity amp Magnetron SCR TPG PAN 3x 6 Z1 Thermostat Magnetron 122 C Magnetron 2M219H B A Fuse 250V 8A Power PCB Lead Wire Ass
6. 7 8837 Electrolytic 1 mfd 20 50V 403 152 7327 Electrolytic 100mfd 20 35V 403 147 8629 Electrolytic 47mfd 20 10V 420 000 6800 407 118 5505 617 220 9784 Buzzer PRM22EPT 2001 Varistor ENC 471D 10A 403 160 8729 Electrolytic 470mfd 20 25V Display Tube Relay OJE SH 112LM Relay DEC DU12D1 1PR 617 137 9358 617 141 0549 617 128 3372 Ceramic Oscillator 617 169 4109 617 126 8959 617 002 4396 617 111 1392 617 171 2155 Connector Connector 11P Connector 3P Male Connector 2 3P Male Step Down Transformer PD5TK S150 Spacer 617 079 4107 617 079 4299 617 079 4237 2 J1 6 Jumper J101 108 Jumper eJodeBuis U pe uud 17 008 66 uedep eyeso P171 OD 9149913 OANYS i m d l D102 8 s102 MOLEX 3 2 P AC 230V 240V PR 50Hz S it oe AN1 H gon LH I SENSING ME NN Fuse zaf OS oor Drag R l 9 22 uF 1 I NOISE A112 63 1 FILTER E goc E l 1650 nHx2 61 60 THERMAL POWER CONTROL D108 Tene Fuse PROTECTOR INTERLOCK CIRCUIT sa var Ay is O OPEN O OPEN O OPEN O OPEN O OPEN O OPEN O OPEN MAIN CONTROL CIRCUIT BUZZER DRIVE CIRCUIT KEY BOARD CIRCUIT ntt 47K 2012 RD27ESB 2 GE 3 2013 Qa Poog 96882
7. Flg W SRT 5 2 2 617210 7592 Door Panel 1 617 180 6151 Hinge Upper 1 411 011 0802 Bolt Hex 5 W5 x 14 2 617 101 1494 Spring 1 617 179 2478 Door Latch 1 CONTROL PANEL PARTS 1 Q ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A OUALIFIED TECHNICIAN USING APPROVED TESTING EOUIPMENT CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK xxx ZA o lt Part No Description Key zZ o AM o 617 225 6054 617 225 8423 617 225 8430 617 225 8447 617 225 9963 617 224 8189 617 207 6317 617 224 2323 617 224 2194 617 224 4143 617 210 7301 Part No Description Control Sheet EM X471S Control Sheet EM X471YS Control Sheet EM X471US Control Sheet EM X471SS Control Sheet EM X471BS Touch Key Board Control Frame EM X471S Control Frame EM X471YS Control Frame EM X471US Control Frame EM X471SS Control Frame EM X471BS oo A 617 207 0377 411 160 6205 617 222 7016 411 129 5805 617 080 9559 617 207 0353 617 224 2316 617 224 2187 617 224 4136 617 210 7288 w Control Base SCR TPG TRS SRT 4x 10 Z1 Power amp Control Circuit Board SCR TPG BIN 3 x 10 Z1 Spring Door Release Lever Door Release Lever EM X471S Door Release Lever EM X471YS Door Release Lever EM X471US Door
8. L T O O cn i CAVITY LIGHT BK Q w 4 O O INTERLOCK MONITOR PRIMARY N COM SWITCH INTERLOCK SWITCH O O NC COM NO BLOWER MOTOR Ww BK OO MOTOR HIGH VOLTAGE TRANSFORMER pm OK aa E RELAY 2 ai 0 on CONNECTOR 102 oe STEP DOWN TRANSFORMER NOTES THE SIGN THE SIGN R 20 KVDC FUSE DIODE CONNECTOR buen url 8101 CAPACITOR CIRCUIT RESISTOR 3 10 uf BOARD MAGNETRON 0MEGOHM 2 5 KV Figure 1 WIRING COLOUR BK BLACK Parts marked with this sign are supplied with BL BLUE High Voltage exceeding 250V W WHITE O ORANGE Parts marked with this sign have special R RED characteristics important for microwave Y YELLOW leakage When replacing any of these parts use only manufacturer s specified parts 4 TEST PROCEDURES COMPONENT CHECKOUT PROCEDURE Measure the resistance between terminals of FPC connector after removing it from S101 Figure 2 RESULT When When not touched touched Less than More than 1K Ohms 1 MEG Ohm When checking START key connect ohm meter as illustration below Resistance value NOTE When reconnecting the FPC connector make sure the holes on the connector are properly inserted in hooks of the plastic fastener in S101 TOUCH KEY BOARD MATRIX CIRCUIT FOR TOUCH KEY BOARD FPC CONNECTOR ohm meter i DWP DEFROST REHEAT MATCH QUICK
9. Los 2000 pa 815 10K 814 2200 o O VF OM POWER SUPPLY PD5TK S150 CIRCUIT sedes 1 237 102 DTAMOX _ dT 1 i RI3 20 3 3K we 1 P46T1 0 821 A114 mv amp M 1K j k INITIALIZATION To CIRCUIT TA123Y 9541237 pa R103 ax ae CO 750V P41ANT1 RUS 26 proto 1 CIRCUIT s TIME BASE may I 5 PD P33 GV Po 812 C is O OPEN PO P11 BEVEEL i O OPEN PO P10 Mal C 22 3 Em i PO Pos PD POS PI PD ER Si Ee SE TN NN sl EES EE Ed TA TUBE CIRCUIT 8131 100K WNVHOVIG LINDYID TIVH3AO 9
10. Release Lever EM X471SS Door Release Lever EM X471BS RY AAAAAAN AA ua NOTE Also order Touch Key Board when replacing Control Sheet and vise versa PRINTED MATTER Items Not illustrated Key No Part No 617 198 7324 617 224 8219 617 212 9006 617 224 8202 617 225 1943 Cook Book Description Operating Instructions Circuit Diagram Carton Box Comp EM X471S Carton Box Comp EM X471YS 617 225 1998 617 225 2049 617 225 9956 617 224 8158 617 225 1899 617 225 1950 617 225 2001 617 225 9871 Description Carton Box Comp EM X471US Carton Box Comp EM X471SS Carton Box Comp EM X471BS Name Plate EM X471S Name Plate EM X471YS Name Plate EM X471US Name Plate EM X471SS Name Plate EM X471BS Ak Y rs Yr mk mk mk CONTROL CIRCUIT BOARD Part NO 617 222 7016 TP 6 TP 5 TP 3 1 m o F TP 1 N 08 6019 TP 2 o TP 4 Rw BZ GROUND 01373108 E KPC 4594 CONTROL CIRCUIT BOARD Part NO 617 222 7016 Key No Q11 12 Q101 Q102 105 107 Q104 Q106 Q103 DIODES D11 12 D101 107 ZD14 ZD11 ZD12 ZD13 101 CAPACITORS 11 C102 C103 104 C101 C11 C13 C12 INTEGRATED CIRCUIT IC11 409 441 4606 IC LM8796C 360SP EN TRANSISTORS RESISTORS R101 107 114 123 127 401 01
11. SANYO FILE NO SUPPLEMENT OF EM X471S SERVICE MANUAL Microwave Oven EM X471YS EM X471US EM X471SS EM X471BS Australia New Zealand m aed MES PRODUCT CODE NO Sc 3 437 450 47 i ae 437 450 48 437 450 49 437 450 50 437 450 54 Foreword See the Service Manual of EM X670S SM 860177 except the items described in this Service Manual Read this manual carefully especially precaution on microwave energy and follow the procedure strictly Careless servicing and testing may expose yourself to the microwave energy leakage PRECAUTIONS PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY a Do not operate or allow the oven to be operated with the door open b Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source and make repairs as necessary 1 Interlock operation 2 proper door closing 3 seal and sealing surfaces arcing wear and other damage 4 damage to or loosening of hinges and latches 5 evidence of dropping or abuse Before turning on microwave power for any service test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmis sion sy
12. stems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner REFERENCE NO SS 860264 TABLE OF CONTENTS Specifications YY 1 Power Output Measurement 1 Circuit Diagram desa 2 1 SPECIFICATIONS C Rated Power Consumption 1500 W Microwave Output 1000 W Freguency 2450MHz 50MHz D Power Supply 230 240V 50Hz Rated Current 6 6 Amp Safety Devices Temp Fuse Open at 167 C for Cavity E Thermal Protector Open at 122 C for Magnetron Fuse Cartridge Type 8 A Primary Interlock Switch Door Sensing Switch and Relay 2 Interlock Monitor Switch Titiet sas or Electronic Digital up to 99 min 99 sec Overall Dimensions 525 W X 425 D X 289 H mm F Oven Cavity Size 351 W X 371 D X 208 H e mm Turn Table Diameter 275 mm Effective Capacity of Oven Cavity 28 liters NetWeight Approx 17 Kg 2 POWER OUTPUT MEASUREMENT G NOTE The Power Output specification 1000W on this model is measured with IEC measurement The Power Output is measured with two 2 liters water is eguivalent to 1000W in measurement with IEC when measured with the following power output A 1 Fill two test bowls with each 1 liter water respectively 2 Use accurate thermometer and meas
13. ure each water temperature respectively B Place the two bowls on glass turntable TestProcedureS 3 4 Exploded View and Parts List 5 10 Overall Circuit Diagram 11 1 Set cooking time to two 2 minutes 2 00 appears in display 2 Touch START key and operate oven for exactly two 2 minutes 1 Take out the two bowls at once 2 Stir both water with thermometer and measure the water temperature rise respectively 1 Get temperature rise by calculation the difference water temperature after cooking minus initial temperature in each bowl 2 Then calculate average value t of both temperature rise in degrees centigrade 3 Then work out Power Output watt 70 x At Where At is an Average Temperature Rise in degrees centigrade Power Output shall be in the following range Microwave Power Output Average Temperature Rise Minimum 11 2 C Maximum 13 7 C Power Output will be influenced by line voltage of power supply Consequently correct power output must be measured within 240V AC 2 volt while unit is operating 3 CIRCUIT DIAGRAM O MAGNETRON THERMAL PROTECTOR OPEN 122 5 C O w N POWER CORD 1 POWER CORD GROUND Se ah 5 NO S Ci c1 022 Rt Ri 1Ma L1 L2 650 C2 C3 4700PF 0 CAVITY TEMP FUSE c2 C3 OPEN 60 0 8 1 ON
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