Sanyo EM-X471S Service Manual Supplement

Sanyo microwave oven service manual supplement

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SUPPLEMENT OF
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 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.
(c) 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.
(d) Any defective or misadjusted components in the 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.
Microwave Oven EM-X471S
Foreword
PRECAUTIONS
File No :
EM-X471YS
EM-X471US
EM-X471SS
EM-X471BS
(Australia / New Zealand)
Model No :
Product Code No :
EM-X471S
EM-X471YS
EM-X471US
EM-X471SS
EM-X471BS
See the Service Manual of EM-X670S (SM-860177)
except the items described in this Service Manual.
REFERENCE NO. SS-860264
437 450 47
437 450 48
437 450 49
437 450 50
437 450 54

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Summary of Contents for Sanyo EM-X471S

  • Page 1 File No : SUPPLEMENT OF Microwave Oven EM-X471S SERVICE MANUAL EM-X471YS EM-X471US EM-X471SS EM-X471BS (Australia / New Zealand) Model No : Product Code No : EM-X471S 437 450 47 EM-X471YS 437 450 48 EM-X471US 437 450 49 EM-X471SS 437 450 50...
  • Page 2: Specifications

    - TABLE OF CONTENTS - Specifications ............Test Procedures ..........3 ~ 4 Power Output Measurement ........Exploded View and Parts List ......5 ~ 10 Circuit Diagram ............ Overall Circuit Diagram ........1. SPECIFICATIONS (3) (a) Set cooking time to two (2) minutes. (“2 00” Rated Power Consumption ..
  • Page 3 3. CIRCUIT DIAGRAM Figure 1 WIRING COLOUR NOTE : THE SIGN Parts marked with this sign are supplied BLACK with High Voltage exceeding 250V. BLUE WHITE THE SIGN Parts marked with this sign have special ORANGE characteristics important for microwave YELLOW leakage.
  • Page 4 4. TEST PROCEDURES Filament Windings CAUTION - DISCONNECT THE POWER SUPPLY CORD FROM Secondary THE WALL OUTLET WHENEVER REMOVING THE Windings 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.
  • Page 5 COMPONENT CHECKOUT PROCEDURE RESULT When When not Measure the resistance between terminals of touched touched Resistance FPC connector after removing it from S101. value Less than More than (Figure 6). 1K Ohms 1 MEG Ohms NOTE TOUCH KEY - When reconnecting the FPC connector, make When checking “START”...
  • Page 6: Exploded View And Parts List

    Description Q’ty Part No. Description Q’ty 411 011 0802 Bolt Hex+SW+W 5 x 14 Z1*** 617 214 9172 Cabinet EM-X471S 617 224 2262 Cabinet EM-X471YS 617 180 6137 Hinge, Lower*** 617 224 2125 Cabinet EM-X471US 411 089 2500 Washer F5 x 10 x 0.8...
  • Page 7 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 manufacturer’s specified parts. ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT.
  • Page 8: Door Parts

    IDENTIFIED BY A TRIPLE ASTERISK (***). Part No. Description Q’ty Part No Description Q’ty 617 207 6294 Door Cover*** EM-X471S 617 124 0948 Choke Dielectric*** 617 224 2286 Door Cover*** EM-X471YS 617 124 0931 Door Sheet 617 224 2149 Door Cover*** EM-X471US...
  • Page 9: Control Panel Parts

    Control Sheet*** EM-X471SS 617 225 9963 Control Sheet*** EM-X471BS 617 080 9559 Spring, Door Release Lever*** 617 207 0353 Door Release Lever*** EM-X471S 617 224 8189 Touch Key Board*** 617 224 2316 Door Release Lever*** EM-X471YS 617 207 6317 Control Frame*** EM-X471S...
  • Page 10 CONTROL CIRCUIT BOARD (Part No. 617 222 7016) - 9 -...
  • Page 11: Control Circuit Board

    CONTROL CIRCUIT BOARD (Part No. 617 222 7016) Key No. Order Part No. Description Q’ty Key No. Order Part No. Description Q’ty INTEGRATED CIRCUIT RESISTORS. IC11 409 461 3603 IC LM8861-525SP. R101, 107, 401 012 5609 Carbon, 1K Ohms 114, ±5%, 1/4W.
  • Page 12 6. OVERALL CIRCUIT DIAGRAM SANYO Electric Co., Ltd. July ‘99/300 LT. Printed in Singapore - 11 - Osaka, Japan.

This manual is also suitable for:

Em-x471ysEm-x471ssEm-x471usEm-x471bs

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