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Sanyo EM-842WS manual

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Table of contents for the manual

  • Page 1

    CAUTION CAUTION CAUTION CAUTION CAUTION W W W W W ARNING TO SER ARNING TO SER ARNING TO SER ARNING TO SER ARNING TO SER VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS PRECAUTIONS TO BE OBSER VED BEFORE AND DURING SER VICING TO A VOID POSSIBLE EXPOSURE TO EXCESSIVE MICROW A VE ENERGY ( a ) Do not operate or allo[...]

  • Page 2

    In the area emitting the highest reading, switch the meter to SLOW RESPONSE, and take a reading for minimum of three (3) seconds. W e recommended the pattern outline shown below when the door sur face is surveyed. NOTE NOTE NOTE NOTE NOTE : Periodically check to be sure that the probe tip is not worn or dirty. The following U.S. standard applies to[...]

  • Page 3

    ( C ) 1 . Set cooking time to two (2) minutes. (“2 00” appears in display) 2 . T ouch “ST ART” key and operate oven for exactly two (2) minutes. ( D ) 1 . T ake out the two bowls at once. 2 . Stir both water with ther mometer and measure the water temperature rise respectively. (E) 1 . Get temperature rise by calculation the difference (wat[...]

  • Page 4

    WIRING COLOR O : ORANGE B K : BLACK R : RED B L : B L UE W : WHITE Y : YELLOW - 2 - - 2 - 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM Figure 1 Figure 1 Figure 1 Figure 1 Figure 1[...]

  • Page 5

    - 3 - 4. 4. 4. 4. 4. EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P AR AR AR AR AR TS LIST TS LIST TS LIST TS LIST TS LIST CA VITY P AR TS Note Note Note Note Note : Screws securing Cabinet cannot be removed by regular screwdriver . KEY NO. 26. SPECIAL SCREW REQUIRES SPECIAL DRIVER (P ART NO. 617[...]

  • Page 6

    SWITCHES AND MICROWAVE PARTS - 4 - *** 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 (***). Key Part No. Description Q’ty No. 17 617 197 7417 Blower Motor 1 18 411 082 5201 SCR TPG TRS 4 x 10 Z1 2 19 617 1[...]

  • Page 7

    - 5 - DOOR P AR TS * * * ALL SER VICE ON MICROW A VE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT . CUSTOMERS SHOULD NOT A TTEMPT TO REPLACE P A RTS IDENTIFIED BY A TRIPLE ASTERISK (***). Key Part No . Description Q ’ ty No. 5 617 144 4636 Door Sheet 1 6 411 054 1903 Nut Hex + Flg W / SRT 5*** 2 7 617 124 0[...]

  • Page 8

    - 6 - CONTROL P ANEL P A RTS Key Part No. Description Q ’ ty No. 617 220 9562 Operating Instructions 1 (English / Spanish) 617 223 5004 Carton Box Complete 1 617 223 4960 Name Plate 1 PRINTED MA TTER (Items Not Illustrated) * * * ALL SER VICE ON MICROW A VE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT . CUS[...]

  • Page 9

    - 7 - CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD (Part No. 617 221 5518 617 221 5518 617 221 5518 617 221 5518 617 221 5518 ) 34700 34700 34700 34700 34700[...]

  • Page 10

    - 8 - Key No. Order Part No. Description Q ’ ty RESISTORS. R105 401 012 4404 Carbon, 100 ohms 1 ± 5%, 1/4W . R101, 112 401 012 5609 Carbon, 1K ohms 7 121 ~ 1 25 ± 5%, 1/4W . R1 5, 102, 401 012 6903 Carbon, 10K ohms 4 109, 114 ± 5%, 1/4W . R16, 56, 58 401 013 6308 Carbon, 12K ohms 3 ± 5%, 1/4W . R13, 14 401 016 2505 Carbon, 220 ohms 2 ± 5%, 1[...]

  • Page 11

    - 9 - 5. 5. 5. 5. 5. OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM[...]

  • Page 12

    CAUTION CAUTION CAUTION CAUTION CAUTION W W W W W ARNING TO SER ARNING TO SER ARNING TO SER ARNING TO SER ARNING TO SER VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS VICE TECHNICIANS PRECAUTIONS TO BE OBSER VED BEFORE AND DURING SER VICING TO A VOID POSSIBLE EXPOSURE TO EXCESSIVE MICROW A VE ENERGY ( a ) Do not operate or allo[...]

  • Page 13

    In the area emitting the highest reading, switch the meter to SLOW RESPONSE, and take a reading for minimum of three (3) seconds. W e recommended the pattern outline shown below when the door sur face is surveyed. NOTE NOTE NOTE NOTE NOTE : Periodically check to be sure that the probe tip is not worn or dirty. The following U.S. standard applies to[...]

  • Page 14

    NOTE NOTE NOTE NOTE NOTE : If the Interlock Monitor Circuit operates and at the same time the fuse blows with the Door opened, be sure to replace the C ontrol Circuit B oard because R elay 2 on the C ontr ol C ircuit B oard, the Door S ensing S witch and the electric circuit related on t he Door Sensing S witch, which act as Secondary Interlock Swi[...]

  • Page 15

    2. 2. 2. 2. 2. SPECIFICA SPECIFICA SPECIFICA SPECIFICA SPECIFICA TIONS TIONS TIONS TIONS TIONS Rated Power Consumption .. 1650W . Microwave Output ................ 1100W . Frequency ............................. 2,450MHz±50MHz. Power Supply ........................ 120V±12V , 60Hz. Rated Current ....................... 14.0 Amp. Safety Devices ..[...]

  • Page 16

    - 3 - 5. CIRCUIT DIAGRAM K C O L R E T N I Y R A D N O C E S E D A M H C T I W S • Y R A M I R P K C O L R E T N I H C T I W S K C O L R E T N I R O T I N O M H C T I W S R O O D G N I S N E S H C T I W S 2 Y A L E R D N O CT IN O I M O CM O CM O CM O C O NC NO NO N N E P O R O O D • E S O L C R O O D •• • Figure 2 Figure 2 Figure 2 Figur[...]

  • Page 17

    A. A. A. A. A. TEST PROCEDURES TEST PROCEDURES TEST PROCEDURES TEST PROCEDURES TEST PROCEDURES COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESUL T T T T T 1) Check for resistance : Across the filament N or mal reading : ter m[...]

  • Page 18

    COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESUL T T T T T Measure the resistance : Across two terminals N orm al r eading : with an Ohm-Meter on highest scale. Momentarily indicates several Ohms, and gradually returns to 10[...]

  • Page 19

    COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESUL T T T T T Measure the resistance between terminals of FPC connector after removing it from S101. (Figure 9). TOUCH KEY NOTE NOTE NOTE NOTE NOTE BOARD - When reconnecting the F[...]

  • Page 20

    - 7 - STEP STEP STEP STEP STEP SEQUENCE SEQUENCE SEQUENCE SEQUENCE SEQUENCE B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING 0 V olt. Check continuity of Fuse, Ther mal Protector for Magnetron, Ther mal Protector for Cavity and AC Power Cord. If the Fuse is blown, see “E, REMOVING FUSE ” on page 13.[...]

  • Page 21

    T ouch “ ST ART ” key and measure voltage between white wire lead and black wire lead for primary winding of H.V . Transformer after removing the wire leads from ter minals of H.V . Transfor mer . STEP STEP STEP STEP STEP SEQUENCE SEQUENCE SEQUENCE SEQUENCE SEQUENCE RESUL RESUL RESUL RESUL RESUL T T T T T Continuity OK. Check contact of Connect[...]

  • Page 22

    STEP STEP STEP STEP STEP SEQUENCE SEQUENCE SEQUENCE SEQUENCE SEQUENCE Resistance OK. Check H.V . Capacitor or H.V . Diode with an Ohm-Meter after removing lead wires. (See page 5) Normal resistance No operation. Check operation of Blower Motor when “ ST AR T ” key is touched. Normal operation. Check resistance of each winding after removing lea[...]

  • Page 23

    STEP STEP STEP STEP STEP SEQUENCE SEQUENCE SEQUENCE SEQUENCE SEQUENCE RESUL RESUL RESUL RESUL RESUL T T T T T Set power level at “ 50 ”. (5) PROBLEM The Magnetron operates on high level when a lower cook power is selected. H.V . Transformer . T ouch “ ST ART ” key and measure voltage between white wire lead and black wire lead for primary w[...]

  • Page 24

    B. B. B. B. B. REMOVING PRIMAR REMOVING PRIMAR REMOVING PRIMAR REMOVING PRIMAR REMOVING PRIMAR Y INTERLOCK SWITCH AND Y INTERLOCK SWITCH AND Y INTERLOCK SWITCH AND Y INTERLOCK SWITCH AND Y INTERLOCK SWITCH AND INTERLOCK MONITOR SWITCH INTERLOCK MONITOR SWITCH INTERLOCK MONITOR SWITCH INTERLOCK MONITOR SWITCH INTERLOCK MONITOR SWITCH (Figure 10-b) ([...]

  • Page 25

    C. C. C. C. C. REMOVING BLOWER MOTOR REMOVING BLOWER MOTOR REMOVING BLOWER MOTOR REMOVING BLOWER MOTOR REMOVING BLOWER MOTOR (Figures 11 (T op View) and 12). (1 ) Remove screw securing the stay. (2) Disconnect all lead wires from the Blower Motor and H.V . Capacitor . (3) Remove 2 screws securing the Blower Base and disengage 3 hooks from the Rear [...]

  • Page 26

    E. E. E. E. E. REMOVING FUSE REMOVING FUSE REMOVING FUSE REMOVING FUSE REMOVING FUSE Remove the 20A Fuse with a screwdriver . NOTE NOTE NOTE NOTE NOTE - - When replacing the 20A Fuse, be sur e to use an exact repair part. - - If the 20A Fuse blows immediately, check the Primary Interlock Switch, the Relay 2 (on the Control Circuit Board) and the In[...]

  • Page 27

    J. J. J. J. J. REMOVING CA REMOVING CA REMOVING CA REMOVING CA REMOVING CA VITY COVER VITY COVER VITY COVER VITY COVER VITY COVER (Figure 16) (1 ) Remove a screw from the Cavity compartment. K. K. K. K. K. REMOVING TURNT REMOVING TURNT REMOVING TURNT REMOVING TURNT REMOVING TURNT ABLE MOTOR COVER ABLE MOTOR COVER ABLE MOTOR COVER ABLE MOTOR COVER A[...]

  • Page 28

    - 15 - 8. 8. 8. 8. 8. EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND P AR AR AR AR AR TS LIST TS LIST TS LIST TS LIST TS LIST CA VITY P AR TS * * * ALL SER VICE ON MICROW A VE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT . CUSTOMERS SHOULD NOT A TTEMPT TO REP[...]

  • Page 29

    Key Part No. Description Q’ty No. 17 617 124 1303 Blower Motor 1 18 411 077 2109 SCR TPG BIN 4 x 20 Z1 2 19 617 177 9974 Blower Fan 1 20 617 245 6256 Latch Lever*** 1 21 617 152 4741 Micro Switch,*** Primary Interlock 1 V-5930D 22 617 004 5575 Micro Switch,*** Interlock Monitor 1 V-5220DZ 23 617 152 4741 Micro Switch,*** Door Sensing 1 V-5930D 24[...]

  • Page 30

    Key Part No . Description Q ’ ty No. 5 617 124 6483 Door Sheet 1 6 411 054 1903 Nu t He x + Fl g W / SR T 5*** 2 7 617 180 6151 Hinge, Upper*** 1 8 411 011 0802 Bolt Hex + SW + W 5 x 14*** 2 9 617 101 1494 Spring*** 1 1 0 617 179 2478 Door Latch*** 1 Key Part No. Description Q ’ ty No. 1 617 207 0322 Door Cover*** 1 2 617 207 0360 Door Panel***[...]

  • Page 31

    Key Part No. Description Q ’ ty No. 617 220 9562 Operating Instructions 1 (English / Spanish) 617 221 5273 Carton Box Complete 1 617 221 5204 Name Plate 1 - 18 - PRINTED MA TTER (Items Not Illustrated) CONTROL P ANEL P A RTS * * * ALL SER VICE ON MICROW A VE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT . CU[...]

  • Page 32

    - 19 - CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD (Part No. 617 220 2952 617 220 2952 617 220 2952 617 220 2952 617 220 2952 ) 32900 32900 32900 32900 32900[...]

  • Page 33

    - 20 - Key No. Order Part No. Description Q ’ty RESISTORS. R105 401 012 4404 Carbon, 100 ohms 1 ± 5%, 1/4W . R101, 112, 401 012 5609 Carbon, 1K ohms 7 121 ~ 1 25 ± 5%, 1/4W . R1 5, 102, 401 012 6903 Carbon, 10K ohms 4 109, 114 ± 5%, 1/4W . R16, 58 401 013 6308 Carbon, 12K ohms 2 ± 5%, 1/4W . R13, 14 401 016 2505 Carbon, 220 ohms 2 ± 5%, 1/4W[...]

  • Page 34

    - 21 - 9. 9. 9. 9. 9. OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM[...]