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Sanyo EM-F3400SW 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

    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 control circuit board because relay 2 on the control circuit board, the door sensing switch and the electric circuit related on the door sensing switch, which act as Secondary Interlock Switch. T est [...]

  • Page 4

    2. 2. 2. 2. 2. SPECIFICA SPECIFICA SPECIFICA SPECIFICA SPECIFICA TIONS TIONS TIONS TIONS TIONS Rated Power Consumption . . 1480W . Microwave Output ................ 1050W . Frequency ............................. 2,450MHz±50MHz. Power Supply ........................ 120V±12V , 60Hz. Rated Current ....................... 12.9 Amp. Safety Devices .[...]

  • Page 5

    - 3 - 5. CIRCUIT DIAGRAM Figure 2 Figure 2 Figure 2 Figure 2 Figure 2 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 [...]

  • Page 6

    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 No r m al r eading : te[...]

  • Page 7

    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 No rma l r eading : with an Ohm-Meter on highest scale. Momentarily indicates several Ohms, and gradually returns to 10[...]

  • Page 8

    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 9

    - 7 - STEP STEP STEP STEP STEP SEQUENCE SEQUENCE SEQUENCE SEQUENCE SEQUENCE B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING 0 volt. 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. R[...]

  • Page 10

    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 Connector S102. PROBLEM 3-b Replace Control Circuit Board. Normal Control Circuit Board. 0 V olts. T ouch “ ST ART ” key and measure voltage between white wire lead and black wire lead for primary winding[...]

  • Page 11

    - 9 - 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 removi[...]

  • Page 12

    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 13

    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 14

    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 3 screws securing the blower base and disengage 3 hooks from the rear[...]

  • Page 15

    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 sure to use an exact repair part. - - If the 20A fuse blows immediately, check the primary interlock switch, the relay 2 (on the control circuit boar d) and the in[...]

  • Page 16

    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 17

    - 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 18

    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 19 617 196 8507 Blower Fan 1 20 617 245 6256 Latch Lever*** 1 21 617 221 4078 Micro Switch,*** Primary Interlock 1 AM51630C53F2 22 617 221 4061 Micro Switch,*** Interlock Monitor 1 AM50620C53 23 617 221 4078 Micro Switch,*** Door Sensing 1 AM5[...]

  • Page 19

    Key Part No . Description Q ’ ty No. 5 617 222 0123 Door Sheet 1 6 411 054 1903 N ut Hex + F lg W / S RT 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. 1 617 229 2403 Door Cover*** 1 2 617 181 4170 Door Panel*** [...]

  • Page 20

    Key Part No. Description Q ’ ty No. 617 232 7594 Operating Instructions 1 (English / Spanish) 617 230 9095 Carton Box Complete 1 617 230 7664 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 21

    - 19 - CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD (Part No. 617 230 2324 617 230 2324 617 230 2324 617 230 2324 617 230 2324 ) 40800 40800 40800 40800 40800[...]

  • Page 22

    Key No. Order Part No. Description Q ’ ty RESISTORS. R901,906, 401 037 5608 MT-Glaze, 10K ohms 3 9 0 9 +-1%, 10W . R903 401 038 3603 MT - G l a ze , 3 . 3K ohms 1 +-1%, 10W . R902,905, 401 038 6406 MT - G l a ze , 4 . 7K ohms 4 907, 908 +-1%, 10W . R904 401 039 0304 MT - G laze, 820 ohms 1 +-1%, 10W . R106 401 012 4404 C a r bon, 100 ohms 1 +-5%,[...]

  • Page 23

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