Sharp R-508HS Service Manual

Sharp R-508HS Manual

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  • Sharp R-508HS | Service Manual - Page 1
    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
  • Sharp R-508HS | Service Manual - Page 2
    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
  • Sharp R-508HS | Service Manual - Page 3
    R-508HS 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. (Example) High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High
  • Sharp R-508HS | Service Manual - Page 4
    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/cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a
  • Sharp R-508HS | Service Manual - Page 5
    R-508HS SERVICE MANUAL MICROWAVE OVEN R-508HS FOREWORD This supplemental Manual has been prepared to provide Sharp Electronics 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
  • Sharp R-508HS | Service Manual - Page 6
    R-508HS ITEM PowerRequirements Power Output Case Dimensions Cooking Cavity Dimensions 2.0 Cubic Feet Control Complement Oven Cavity Light Safety Standard SPECIFICATION 120 Volts 14.3 Amperes, 1700 watts 60 Hertz Single phase, 3 wire grounded DESCRIPTION 1200 watts (IEC 705 TEST PROCEDURE)
  • Sharp R-508HS | Service Manual - Page 7
    2 97 5 11 8 10 1 4 3 10. Wave guide cover. 11. Power supply cord TOUCH CONTROL PANEL R-508HS NOTE: The directed features are disabled after one minute 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
  • Sharp R-508HS | Service Manual - Page 8
    fuse, primary interlock switch, relay (RY1) and secondary interlock relay (RY2), causing the C/T fuse to blow. POWER LEVEL P-0 TO P-90 COOKING When Variable Cooking Power , the power transformer, oven lamp, etc. are turned off, and the generation of microwave energy is stopped. The oven will revert
  • Sharp R-508HS | Service Manual - Page 9
    G3 G2 G13 G12 G11 G10 G9 * STOP CLEAR REHEAT 2 POPCORN 15 * * DEFROST MINUTE PLUS START 4 8 COOK 7 0 CLEAR TIMER CLOCK 9 3 POWER LEVEL 6 * When door is close, key can be operated. Key Unit R-508HS G1 K RELAY TEST 1. Disconnect the power supply cord, and then remove outer case
  • Sharp R-508HS | Service Manual - Page 10
    508HS TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units. (1) Key Unit (2) Control Unit (The Control Unit consists of Power magnetron, fan motor, turntable motor and light the oven lamp. 5) Buzzer Circuit The buzzer is responsive
  • Sharp R-508HS | Service Manual - Page 11
    Power source voltage input terminal. Standard voltage for LCD. Terminal to change cooking input according to the Model not used. Oven lamp, fan motor and turntable motor driving signal To turn on and off turn on and off the cook relay (RY2). The Maximum signals holds "L" level during microwave
  • Sharp R-508HS | Service Manual - Page 12
    R-508HS Pin No. Signal I/O 25 P41 IN 26 P40 IN 27 RESET IN through the pull-down resistor. Auto clear terminal. Signal is input to reset the LSI to the initial state when power is applied. Signal similar to AN3. When either G10 line on key matrix is touched, a corresponding signal will be
  • Sharp R-508HS | Service Manual - Page 13
    R-508HS Pin No. Signal I/O Description Connected to LCD. The relation between SEG20 (52 SEG 20 SEG21 (51 SEG 21 73 VCC IN Power source voltage : GND(0V). 74 VREF IN A/D converter power source voltage : GND(0V). The power source voltage to drive the A/D converter. Connected to GND. 75
  • Sharp R-508HS | Service Manual - Page 14
    magnetron duct. 7. Remove the oven lamp from the socket by turning the oven lamp. 8. Now, the oven lamp and the oven lamp socket are free. Terminal Oven lamp socket Figure C-1. Oven lamp socket POSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVAL 1. Disconnect the power supply cord, and then remove
  • Sharp R-508HS | Service Manual - Page 15
    Rubber connector Graphic sheet Figure C-XXX Graphic Sheet Replacement TURNTABLE MOTOR REMOVAL 1. Disconnect the power supply cord. 2. Remove turntable and turntable support from oven cavity. 3. Lay the oven on it's backside. Remove the turntable motor cover by snipping off the material in four
  • Sharp R-508HS | Service Manual - Page 16
    508HS COOLING FAN MOTOR REMOVAL REMOVAL 1. Disconnect the power supply cord and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Disconnect the wire leads from the fan motor. 5. Remove the two (2) screws holding the fan motor to the oven supports
  • Sharp R-508HS | Service Manual - Page 17
    door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.) Latch Heads Door Switch Lever Door Sensing Switch Monitor Switch Primary Interlock Switch Figure C-3. Latch Switch Adjustments DOOR REPLACEMENT REMOVAL 1. Disconnect the power supply cord. 2. Push the
  • Sharp R-508HS | Service Manual - Page 18
    R-508HS 9. two (2) hole of upper and lower oven hinges. 6. Re-install choke cover to door panel by pushing. Note: After any service to the door; (A) Make sure that microwave survey meter. (Refer to Microwave Measurement Procedure.) Note: The door on a microwave oven is
  • Sharp R-508HS | Service Manual - Page 19
    the terminal with blue mark on the oven light socket. FAN MOTOR HIGH VOLTAGE COMPONENTS TURNTABLE MOTOR BRN WHT MAGNETRON HIGH VOLTAGE WIRE A WHT WHT RED HIGH VOLTAGE CAPACITOR POWER TRANSFORMER H.V. RECTIFIER 4 4 5 5 6 6 R-508HS Figure S-1. Pictorial Diagram A B C D E F G H
  • Sharp R-508HS | Service Manual - Page 20
    R-508HS A B C D E F G H 1 1 2 2SA1037AK AC(N) NO OVEN LAMP TURNTABLE MOTOR FAN MOTOR COM AC(H) NO POWER COM TRANSFORMER B-1 DOOR G5 G4 G3 * STOP CLEAR CLEAR REHEAT 2 POPCORN 1 * * DEFROST MINUTE PLUS START 4 5 TIMER CLOCK 8 COOK 7 0 POWER LEVEL *When door is
  • Sharp R-508HS | Service Manual - Page 21
    R-508HS 1 2 3 4 5 6 A A B C D E F G H 1 B DIP CHIP SIDE J3 CN-F R90 12 3 CN-B 1 2 D30 D31 C5 R6 J6 E C B E C B Q3 Q4 SP1 J1 D8 D5 T1 D6 R4 J2 R2 R7 RY2 L1 VRS1 RY1 PS C1 R8 D1 D2 D3 D4 C2 D7 Figure S-5 . Printed Wiring Board of Power Unit 2 3 4 5 19 C D E F G H 6
  • Sharp R-508HS | Service Manual - Page 22
    support Latch hook Switch lever Magnetron duct Fan blade Fan duct Oven cavity (Not a replaceable part) Waveguide cover Turntable motor packing Cushion DOOR PARTS Door assembly Door frame assembly Latch head Latch spring Door panel Sealer film Choke cover Door stopper Button (start/stop/minute
  • Sharp R-508HS | Service Manual - Page 23
    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. 21
  • Sharp R-508HS | Service Manual - Page 24
    R-508HS 1 2 3 OVEN AND CABINET PARTS A 4 5 6 7-4 A 7-4 7-7 2-3 B 7-8 4-7 B 7-7 7-5 6-6 1-7 C C 1-4 4-6 7-8 7-3 7-6 1-11 D 4-8 1-5 D 7-6 4-2 7-4 E 4-9 1-8 6-5 E 7-4 7-2 7-2 6-4 7-4 1-3 7-1 4-10 4-3 1-6 1-9 4-5 1-10 F 7-5 1-5 F 2-1 6-3 1-6 7-1 4-4
  • Sharp R-508HS | Service Manual - Page 25
    1 2 CONTROL PANEL PARTS A 3-1 B 3-3 C D 3 4 3-2 3-6 3-5 3-4 5-1 5-2 5-5 R-508HS 5 6 A B DOOR PARTS C 5-8 5-6 5-7 D E F Items 5-9 & 5-10 are not included with assembly 5-1 or 5-2 G 5-3 5-4 5-9 5-10 E F MISCELLANEOUS 6-1 6-2 G 6-8 Actual wire harness may be different from
  • Sharp R-508HS | Service Manual - Page 26
    R-508HS PACKING AND ACCESSORIES DOOR PROTECTION SHEET 6-4 TURNTABLE TRAY ON TOP OF THE OVEN TRAY HOLDER TOP PAD ASSEMBLY PLASTIC BAG 6-7 OPERATION MANUAL INTO THE OVEN CAVITY BOTTOM PAD ASSEMBLY 6-3 TURNTABLE SUPPORT PACKING CASE Non-replaceable items 24
  • Sharp R-508HS | Service Manual - Page 27
    R-508HS COPYRIGHT © 2003 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,
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R-508HS
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..)
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
..................
INSIDE FRONT COVER
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
S83M216R508HE
R-508HS
MICROWAVE OVEN
MODEL
SHARP ELECTRONCS CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135
R-508HS
SUPPLEMENTAL SERVICE MANUAL
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.