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Sharp R-308HK Service Manual

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See also: Operating Manual
This is a supplemental Service Manual for Models R-308HK and R-308HW. These models are quite similar to base
models R-305HK/R-305HW. Use this supplemental manual together with the Base Model Service Manual (Refer No.
is S2304R305HPW/) for complete operation, service information, etc..
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ................................................................................................................ 1
MICROWAVE MEASUREMENT PROCEDURE ................................................................................................... 2
FOREWORD AND WARNING ............................................................................................................................... 3
PRODUCT SPECIFICATION ................................................................................................................................. 4
TOUCH CONTROL PANEL .................................................................................................................................. 5
OVEN SCHEMATIC ............................................................................................................................................... 5
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 6
SERVICE INFORMATION FOR R-305HK/R-305HW ............................................................................................ 6
PARTS LIST .......................................................................................................................................................... 7
PACKING AND ACCESSORIES ........................................................................................................................... 8
SHARP CORPORATION
SERVICE MANUAL
MODELS
In the interest of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens con-
tain circuitry capable of producing very high voltage and
current, contact with following parts may result in a severe,
possibly fatal, electrical shock. (High Voltage Capacitor, High
Voltage Power Transformer, Magnetron, High Voltage Recti-
fier Assembly, High Voltage Harness etc..)

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This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
MICROWAVE OVEN
R-308HK
R-308HW
R-308HK
R-308HW
S4307R308HPW/
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Summary of Contents for Sharp R-308HK

  • Page 1: Table Of Contents

    Voltage Power Transformer, Magnetron, High Voltage Recti- fier Assembly, High Voltage Harness etc..) This is a supplemental Service Manual for Models R-308HK and R-308HW. These models are quite similar to base models R-305HK/R-305HW. Use this supplemental manual together with the Base Model Service Manual (Refer No.

  • Page 2: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy

    Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS CORPORATION immediately @1-800-237-4277. If the unit operates with the door open, service person should 1) tell the user not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and Food and Drug Administration's Center for Devices and Radiological Health immediately.

  • Page 3: Warning To Service Personnel

    R-308HK R-308HW WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of pro- ducing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Trans- former, Magnetron, High Voltage Rectifier Assem- bly, High Voltage Harness etc..

  • Page 4: Microwave Measurement Procedure

    R-308HK R-308HW MICROWAVE MEASUREMENT PROCEDURE A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/cm at any point 5cm or more from the external surface of the oven, measured prior to acquisition...

  • Page 5: Foreword And Warning

    Information for the SHARP MICROWAVE OVENS, R-308HK and R-308HW. The models R-308HK and R-308HW are quite similar to base models R-305HK/R-305HW (Refer No. is S2304R305HPW/). It is recommended that service personnel carefully study the entire text of this manual and the base model's manual so that they will be qualified to render satisfactory customer service.

  • Page 6: Product Specification

    R-308HK R-308HW SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts / 13.5 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1100 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 20-1/2" Height 12-1/4" Depth 17-3/4" Cooking Cavity Dimensions Width 14-1/2"...

  • Page 7: Touch Control Panel

    R-308HK R-308HW TOUCH CONTROL PANEL NOTE: Some one-touch cooking features such as "MINUTE PLUS" are dis- abled after three minutes when the oven is not in use. These features are automatically enabled when the door is opened and closed or the STOP/ CLEAR pad is pressed.

  • Page 8: Component Replacement And Adjustment Procedure

    R-308HK R-308HW COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE MAGNETRON REMOVAL Reinstallation Removal 1. Reinstall the magnetron to waveguide flange with the 1. Disconnect the power supply cord and then remove four (4) screws. outer case. 2. Reinstall the air duct to the oven cavity top plate and the 2.

  • Page 9: Parts List

    1-11 RV-MZA288WRE0 Magnetron 1-11 RV-MZA321WRZZ Magnetron (Interchangeable) for production use CABINET PARTS GCABUA883WRPZ Outer case cabinet (R-308HW) GCABUA889WRPZ Outer case cabinet (R-308HK) FDAI-A265WRYZ Bottom plate GLEGPA074WRE0 Foot CONTROL PANEL PARTS CPWBFA858WRKZ Control unit assembly HPNLCB804WRFZ Control panel frame (R-308HW) HPNLCB805WRFZ...

  • Page 10: Packing And Accessories

    1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. DESCRIPTION Order Parts from the authorized SHARP parts Distributor for your area. Defective parts requiring return should be returned as indicated in the Service Policy. TOP PAD ASSEMBLY FPADBA515WRKZ PACKING AND ACCESSORIES...
  • Page 11 R-308HK R-308HW 7-10 OVEN AND CABINET PARTS 7-10 7-10 4-15 7-11 7-12 4-16 4-13 7-10 7-10 7-10 1-11 4-14 4-12 4-17 4-10 1-10 4-11 7-10 7-10 7-10 7-10...
  • Page 12 R-308HK R-308HW CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS Actual wire harness may be different from illustration. 2003 SHARP CORP. (2S1.700E) Printed in U.S.A...

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