Table of Contents
Advertisement
SUPPLEMENTAL SERVICE MANUAL
R-508HS
This is a supplemental Service Manual for Microwave Oven model R-508HS. This model is quite similar to the base models
R-510HK/R-510HW; (S43M208R510HE).
This supplemental manual must be used in conjunction with the base model service manual for complete operation,
service, safety and replacement parts information.
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 contain 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 Rectifier Assembly, High Voltage Harness etc..)
BEFORE SERVICING ..................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL .............................................................................................................. 1
MICROWAVE MEASUREMENT PROCEDURE .................................................................................................. 2
FOREWORD AND WARNING ............................................................................................................................. 3
PRODUCT SPECIFICATIONS ............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................. 4
OPERATION ........................................................................................................................................................ 6
TEST PROCEDURE ..............................................................................................................................................7
TOUCH CONTROL PANEL ....................................................................................................................................8
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 12
PICTORIAL DIAGRAM ........................................................................................................................................ 17
CONTROL UNIT CIRCUIT ................................................................................................................................... 18
PRINTED WIRING BOARD ................................................................................................................................. 19
PARTS LIST ........................................................................................................................................................ 20
PACKING AND ACCESSORIES ......................................................................................................................... 24
SHARP ELECTRONCS CORPORATION
Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135
MODEL
TABLE OF CONTENTS
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
S83M216R508HE
MICROWAVE OVEN
R-508HS
R - 508HS
Page
Advertisement
Table of Contents
Related Manuals for Sharp R-508HS
Summary of Contents for Sharp R-508HS
-
Page 1: Table Of Contents
MODEL R-508HS This is a supplemental Service Manual for Microwave Oven model R-508HS. This model is quite similar to the base models R-510HK/R-510HW; (S43M208R510HE). This supplemental manual must be used in conjunction with the base model service manual for complete operation, service, safety and replacement parts information. -
Page 2: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy
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-508HS 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-508HS 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: General Information
OPERATION Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN; R-508HS. The model R-508HS is quite similar to base models R-510HK/R-510HW (Ref.# S43M208R510HE). TOUCH CONTROL PANEL Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and microwave radiation hazard. -
Page 6: Specifications
R-508HS SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts 14.3 Amperes, 1700 watts 60 Hertz Single phase, 3 wire grounded Power Output 1200 watts (IEC 705 TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 24" Height 13-3/8" Depth 19-1/8" Cooking Cavity Dimensions Width 17-3/8"... -
Page 7: Oven Diagram
R-508HS a qualified electrician and have it replaced with a properly grounded Grounded Receptacle Box three-pronged wall receptacle or have a grounding adapter properly grounded and polarized. If the extension cord must be used, it should be a 3-wire, 15 amp. or higher rated cord. Do not drape over a countertop or table where it can be pulled on by children or tripped over accidentally. -
Page 8: Operating Sequence
R-508HS OPERATION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during and is mechanically associated with the door so that it will oven operation. function in the following sequence. (1) When the door opens from the closed position, the... - Page 9 TEST PROCEDURES R-508HS PROCEDURE COMPONENT TEST LETTER STOP NO. G1 NO. G13 CLEAR CLEAR REHEAT Key unit ribbon cable TIMER POPCORN CLOCK MINUTE DEFROST START PLUS POWER COOK Key unit (Membrane Switch) front view LEVEL When door is close, key can be operated.
- Page 10 R-508HS TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL 3) Power Source Circuit The touch control section consists of the following units. This circuit generates voltages necessary in the control unit from the AC line voltage. (1) Key Unit...
- Page 11 R-508HS DESCRIPTION OF LSI The I/O signal of the LSI is detailed in the following table. Pin No. Signal Description VL2-VL1 Power source voltage input terminal. Standard voltage for LCD. AN7-AN4 Terminal to change cooking input according to the Model.
- Page 12 R-508HS Pin No. Signal Description Signal similar to AN3. When either G11 line on key matrix is touched, a corresponding signal will be input into P41. Connected to GND through the pull-down resistor. RESET Auto clear terminal. Signal is input to reset the LSI to the initial state when power is applied.
- Page 13 R-508HS Pin No. Signal Description Connected to LCD. The relation between signals are as follows: LSI signal (Pin No.) LCD (Pin No.) LSI signal (Pin No.) LCD (Pin No.) SEG0 (72) ........ SEG 0 SEG11 (61) ....... SEG 11 SEG1 (71) ........ SEG 1 SEG12 (60) .......
- Page 14 R-508HS OVEN LAMP AND LAMP SOCKET REMOVAL 1. Disconnect the power supply cord and remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Pull the wire leads from the oven lamp socket.
-
Page 15: Turntable Motor Removal
4. Where the corners have been snipped off bend corner 7. Now the turntable motor is free. areas flat. No sharp edges must be evident after removal 8. After replacement, use the one (1) screw provided with the of the turntable motor cover. -
Page 16: Pictorial Diagram
R-508HS COOLING FAN MOTOR REMOVAL REMOVAL CAUTION: 1. Disconnect the power supply cord and then remove outer * Do not reuse the removed fan blade because the hole case. (for shaft) may be larger than normal. 2. Open the door and block it open. - Page 17 R-508HS 3. Secure latch hook (with two (2) mounting screws) to oven and check continuity of the monitor circuit. Refer to chapter flange. "Test Procedure" and Adjustment procedure. 4. Make sure that the monitor switch is operating properly DOOR SENSING SWITCH/PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT 1.
- Page 18 R-508HS 9. Release the door panel from twelve (12) tabs of door frame. 10.Remove the door panel from the door frame. Upper Oven Upper Hinge 11.Now, door panel with sealer film is free. Oven Hinge 12.Tear sealer film from door panel.
- Page 19 R-508HS...
- Page 20 R-508HS...
-
Page 21: Printed Wiring Board
R-508HS CHIP SIDE CN-F 1 2 3 CN-B WH-2 WH-2 Q4 SP1 VRS1 Figure S-5 . Printed Wiring Board of Power Unit... -
Page 22: Parts List
R-508HS PARTS LIST Note: The parts marked “∆ ∆ ∆ ∆ ∆ ” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION. REF. NO. PART NO. § DESCRIPTION... - Page 23 To have your order filled promptly and correctly, please furnish the following information. 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.
- Page 24 R-508HS OVEN AND CABINET PARTS 1-11 4-10 1-10 4-11...
-
Page 25: Control Panel Parts
R-508HS CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS Items 5-9 & 5-10 are not included with assembly 5-1 or 5-2 Actual wire harness may be different from illustration. -
Page 26: Packing And Accessories
R-508HS PACKING AND ACCESSORIES TOP PAD ASSEMBLY DOOR PROTECTION SHEET 6-4 TURNTABLE TRAY PLASTIC BAG TRAY HOLDER 6-7 OPERATION MANUAL BOTTOM PAD ASSEMBLY 6-3 TURNTABLE SUPPORT PACKING CASE... - Page 27 No part of this publication may be repro- duced, stored in retrieval systems, or trans- mitted in any form or by any means, elec- tronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. 2003 SHARP CORP. (4M2.00E) Printed in U.S.A...