Sharp R-1874TYA Supplemental Service Manual
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Sharp R-1874TYA Supplemental Service Manual

Over the range microwave
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U P D AT E
SUPPLEMENTAL SERVICE MANUAL
OVER THE RANGE MICROWAVE MODEL
*
FOR SERIAL NUMBERS: 514495 ~ AND ABOVE
Units with Serial Number range 514495 ~ and above employ a change to the
*
connectors on various Components, Harnesses and PWB's.
NOTE:
Use this Service Manual for all units with the Serial Number range
514495 ~ and above.
This is a supplemental Service Manual for Model R-1874TYA. Use this supplemental manual together with
the following base model for complete operation, service information, etc. R-1874TY
(base model R-1855).
In the interest of user-safety the unit should be restored to its original condition and only parts identical to those specified should
be used.
WARNING TO SERVICE PERSONNEL:
This service manual is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. Sharp Electronics
Corporation cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the
use of this manual.
Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the
following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage
Power Transformer, High Voltage Rectifier, Heat sink, Magnetron, and High Voltage Harness etc..)
SHARP ELECTRONICS CORPORATION
This document has been published to be used for after sales service only. The contents are subject to change without notice.
R-1874TYA
1
R - 1 8 7 4 T YA
S42M323R18OR4Y

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Summary of Contents for Sharp R-1874TYA

  • Page 1 Use this Service Manual for all units with the Serial Number range 514495 ~ and above. This is a supplemental Service Manual for Model R-1874TYA. Use this supplemental manual together with the following base model for complete operation, service information, etc. R-1874TY S42M323R18OR4Y (base model R-1855).

  • Page 2: Microwave Oven

    R-1874TYA FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Informa- tion for the SHARP OVER THE RANGE MICROWAVE OVEN. It is recommended that service personnel carefully study the entire text of this manual so that they will be qualified to render satisfactory customer service.
  • Page 3 U P D AT E R - 1 8 7 4 T YA SCHEMATIC NOTE: CONDITION OF OVEN 1. Door Closed 2. CLOCK APPEARS ON DISPLAY MAGNETRON SECONDARY TEMPERATURE INTERLOCK FUSE SWITCH CONTROL UNIT THIRD DOOR SWITCH MONITOR SWITCH DOOR HOOD FAN SENSING DAMPER...
  • Page 4 R-1874TYA U P D AT E...

  • Page 5: Parts List

    U P D AT E R - 1 8 7 4 T YA PARTS LIST Note: The parts marked “∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. REF. NO. PART NO. DESCRIPTION Q'TY CODE ELECTRIC PARTS...

  • Page 6: Door Parts

    R-1874TYA U P D AT E REF. NO. PART NO. DESCRIPTION CODE 4-16 FANGTA175WRYZ Unit mounting plate 4-17 PFPF-A310WREZ Heat protect 4-18 LANGQA811WRPZ Noise filter angle 4-19 PDUC-B161WRWZ Exhaust duct B 4-20 PDUC-B167WRWZ Hood intake duct 4-21 NFANJA069WREZ Fan blade...

  • Page 7: Miscellaneous Parts

    U P D AT E R - 1 8 7 4 T YA REF. NO. PART NO. DESCRIPTION Q'TY CODE SCREWS,NUTS AND WASHERS 7- 1 XHPS740P08K00 Screw 7- 2 XOTS840P08000 Screw 7- 3 XHPS730P08000 Screw 7- 4 XBTS740P08RV0 Screw 7- 5 XCTWW40P08RV0 Screw 7- 6...

  • Page 8: Oven And Cabinet Parts

    R-1874TYA U P D AT E OVEN AND CABINET PARTS 4-13 4-13 4-10 1-17 7-14 4-10 4-11 4-16 2-10 4-39 4-46 4-36 4-25 7-14 7-14 4-37 1-15 4-24 4-40 1-13 4-38 4-22 4-44 4-20 4-17 1-16 1-20 1-21 6-13 4-12...

  • Page 9: Control Panel Parts

    U P D AT E R - 1 8 7 4 T YA CONTROL PANEL PARTS DOOR PARTS 4-35...

  • Page 10: Packing And Accessories

    Revision 1 R-1874TYA U P D AT E PACKING AND ACCESSORIES INSTALL MATERIAL ASSEMBLY COOK BOOK 6-3 OPERATION MANUAL TOP PAD DOOR PROTECTOR WALL TEMPLATE WRAP COVER INSTALLATION INSTRUCTION 6-4 TOP TEMPLATE GREASE FILTER (x 2) LOW RACK 6-10 HIGH RACK...
  • Page 11 U P D AT E R - 1 8 7 4 T YA NOTES...

  • Page 12: All Rights Reserved

    R-1874TYA U P D AT E COPYRIGHT © 2017 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permis-...

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