Table of Contents
Advertisement
R-508CK
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
TROUBLESHOOTING GUIDE .............................................................................................................................. 9
TEST PROCEDURE ............................................................................................................................................ 10
TOUCH CONTROL PANEL ................................................................................................................................. 18
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 22
PICTORIAL DIAGRAM ........................................................................................................................................ 28
POWER UNIT CIRCUIT ...................................................................................................................................... 29
LSI UNIT CIRCUIT ............................................................................................................................................... 30
PRINTED WIRING BOARD ................................................................................................................................. 32
PARTS LIST ........................................................................................................................................................ 33
PACKING AND ACCESSORIES ......................................................................................................................... 37
SHARP CORPORATION
SERVICE MANUAL
MODELS
NO.
LBS.
CUPS.
COOK
OZ.
DEFOST
MINUTE PLUS
INSTAN T ACTION
TO ADJUST QUANTITY - TOUCH PAD AGAIN
Dinner
Casserole
Plate
Popcorn
Baked
Beverage
Fresh
Potatoes
Vegetables
Frozen
Frozen
Rolls/
Entress
Vegetables
Muffins
1 Ground Meat
2 Steaks/Chops
3 Chicken Pieces
COMPU DEFROST
1
2
3
4
5
6
7
8
9
Power
0
Timer
Level
Clock
Stop
START
Clear
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..)
TABLE OF CONTENTS
MICROWAVE OVEN
R-508CK
R-510CK
R-510CW
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R - 50 8 CK
R - 5 10 CK
R -510 CW
S3906R510CPW/
Page
Advertisement
Table of Contents
Related Manuals for Sharp R-508CK
Summary of Contents for Sharp R-508CK
-
Page 1: Table Of Contents
R - 50 8 CK R - 5 10 CK R -510 CW SERVICE MANUAL S3906R510CPW/ MICROWAVE OVEN R-508CK MODELS R-510CK LBS. CUPS. COOK DEFOST R-510CW MINUTE PLUS INSTAN T ACTION TO ADJUST QUANTITY - TOUCH PAD AGAIN Dinner Casserole... -
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 -508CK R -510CK R -510CW 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 - 50 8 C K R - 5 10 C K R -5 10C W 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 by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm at any point 5cm or more from the external... -
Page 5: Foreword And Warning
MICROWAVE OVEN R-508CK/ R-510CK/ R-510CW GENERAL INFORMATION FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-508CK, R-510CK, R-510CW. OPERATION 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 6: Product Specifications
R - 50 8 C K R - 5 10 C K R -5 10C W SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts / 13 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1100 watts (IEC-705 TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width... -
Page 7: Oven Diagram
Entress Vegetables Muffins 1 Ground Meat 1 Ground Meat 2 Steaks/Chops COMPU DEFROST 2 Steaks/Chops 3 Chicken Pieces 3 Chicken Pieces COMPU DEFROST Power Timer Timer Power Level Level Clock Clock Stop Stop START START Clear Clear R-508CK R-510CK/CW... -
Page 8: Operation
R - 50 8 C K R - 5 10 C K R -5 10C W OPERATION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during relay and is mechanically associated with the door so oven operation. that it will function in the following sequence. -
Page 9: Oven Schematic-Off Condition
R -508CK R -510CK R -510CW SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CLOCK APPEARS ON DISPLAY. NOTE: Indicates components with potential above 250 V. MAGNETRON MONITOR TEMP. FUSE 20A FUSE COM. N.O. CAPACITOR 1.0 F AC 2300V (RY-2) (RY-1) PRIMARY... -
Page 10: Description And Function Of Components
R - 50 8 C K R - 5 10 C K R -5 10C W DESCRIPTION AND FUNCTION OF COMPONENTS DOOR OPEN MECHANISM open, the monitor fuse blows simultaneously with closing of the monitor switch contacts. The door is opened by pushing the open button on the CAUTION: BEFORE REPLACING A BLOWN MONITOR control panel, refer to the Figure D-1. -
Page 11: Troubleshooting Guide
R -508CK R -510CK R -510CW TROUBLESHOOTING GUIDE Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected. When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. -
Page 12: Test Procedure
R - 50 8 C K R - 5 10 C K R -5 10C W CK = Check / RE = Replace RE RE A B C D E E F F G H RE RE CK I CK CK CK J K L M TEST PROCEDURE PROBLEM CONDITION... - Page 13 R -508CK R -510CK R -510CW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 4. To test for an open filament, isolate the magnetron from the high voltage circuit. A continuity check across the magnetron filament leads should indicate less than 1 ohm. 5.
- Page 14 R - 50 8 C K R - 5 10 C K R -5 10C W TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER HIGH VOLTAGE RECTIFIER TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3.
- Page 15 R -508CK R -510CK R -510CW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER CAUTION: IF THE TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERA- TURE, REPLACE TEMPERATURE FUSE. SECONDARY INTERLOCK SWITCH TEST 1. Disconnect the power supply cord, and then remove outer case. 2.
- Page 16 R - 50 8 C K R - 5 10 C K R -5 10C W TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 5. Reconnect all leads removed from components during testing. 6. Reinstall the outer case (cabinet). 7. Reconnect the power supply Screw Driver cord after the outer case is installed.
- Page 17 R -508CK R -510CK R -510CW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER The following symptoms indicate a defective key unit. a) When touching the pads, a certain pad produces no signal at all. b) When touching a number pad, two figures or more are displayed. c) When touching the pads, sometimes a pad produces no signal.
- Page 18 Clear BEVERAGE Clear potatoes vegetables meat R-508CK R-510CK/CW RELAY TEST 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 leads to the primary of the power transformer.
- Page 19 R -508CK R -510CK R -510CW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER (6) If improper operation is indicated, the control unit is probably defective and should be checked. FOIL PATTERN ON THE PRINTED WIRING BOARD TEST To protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on the PWB, this foil pattern acts as a fuse.
-
Page 20: Touch Control Panel
R - 50 8 C K R - 5 10 C K R -5 10C W 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. - Page 21 R -508CK R -510CK R -510CW Pin No. Signal Description 11-13 P57-P55 Terminal not used. CNTR0 Signal to sound buzzer (2.0 kHz). 0.1 sec. H : GND A: key touch sound. L : -5V B: Completion sound. 2.0 sec. H : GND L : -5V Oven lamp, fan motor and turntable motor driving signal 16.7 msec.
- Page 22 R - 50 8 C K R - 5 10 C K R -5 10C W Pin No. Signal Description Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45 terminal while one of G7 line keys on key matrix is touched. Key strobe signal.
- Page 23 R -508CK R -510CK R -510CW TOUCH CONTROL PANEL SERVICING A. On some models, the power supply cord between the 1. Precautions for Handling Electronic Components touch control panel and the oven itself is so short that the This unit uses CMOS LSI in the integral part of the two can’t be separated.
-
Page 24: Component Replacement And Adjustment Procedure
4. If the outer case (cabinet) is not fitted. WARNING FOR WIRING To prevent an electric shock, take the following pre- 3) Sharp edge: cautions. Bottom plate, Oven cavity, Waveguide flange, 1. Before wiring, Chassis support and other metallic plate. -
Page 25: Magnetron Removal
R -508CK R -510CK R -510CW CAUTION: 1. DISCONNECT OVEN FROM POWER SUP PLY BEFORE REMOVING OUTER CASE. 2. DISCHARGE THE HIGH VOLTAGE CA- PACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING. Special screw NOTE: When replacing the outer case, the 2 special Torx screws must be reinstalled in the same locations. - Page 26 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 to fit the of the turntable motor cover.
- Page 27 R -508CK R -510CK R -510CW COOLING FAN MOTOR REMOVAL REMOVAL CAUTION: 1. Disconnect the power supply cord and then remove * Do not reuse the removed fan blade because the outer case. hole (for shaft) may be larger than normal. 2.
- Page 28 R - 50 8 C K R - 5 10 C K R -5 10C W forth, and up and down. In and out play of the door 3. Monitor switch contacts close when door is opened. allowed by the upper and lower position of the latch hook 4.
- Page 29 R -508CK R -510CK R -510CW Note: The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle. This function does not require that door be air- tight, moisture (condensation)-tight or light-tight.
-
Page 30: Pictorial Diagram
R - 50 8 C K R - 5 10 C K R -5 10C W... -
Page 31: Power Unit Circuit
R -508CK R -510CK R -510CW CN-C S1NB10 9PIN LEAD WIRE HARNESS CN-A – OVEN LAMP TURNTABLE BUZZER MOTOR FAN MOTOR OVEN LAMP TURNTABLE MOTOR FAN MOTOR MICRO MICRO (BROWNER) SH-A DOOR SENSING SWITCH SH-B DOOR... -
Page 32: Lsi Unit Circuit
R - 50 8 C K R - 5 10 C K R -5 10C W COM1 COM2 COM3 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 VREF XOUT AVSS... - Page 33 R -508CK R -510CK R -510CW COM1 COM2 COM3 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 VREF XOUT AVSS COM3 COM2 COM1 RESET COM0 4.7k 4.7k 4.7k /25v 0.01...
-
Page 34: Printed Wiring Board
R - 50 8 C K R - 5 10 C K R -5 10C W SW (GREEN) CN - C SH - B SH - A CN - B (D3) (D4) TTM FM BROWNER MICRO Figure S-5 . Printed Wiring Board of Power Unit... -
Page 35: Parts List
RH-VZB001MRE0 Varistor (470ND-10D) VRS1 RH-VZA032DRE0 Varistor (10G471K) (Interchangeable) 3- 2 FPNLCB234MRK0 Control panel frame with key unit [R-508CK] 3- 2 FPNLCB236MRK0 Control panel frame with key unit [R-510CK] 3- 2 FPNLCB237MRK0 Control panel frame with key unit [R-510CW] 3- 2-1... - Page 36 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 37: Oven And Cabinet Parts
R -508CK R -510CK R -510CW OVEN AND CABINET PARTS 7-10 7-10 1-10 4-11 1-14 1-11 4-10 1-12 1-13 4-12... - Page 38 R - 50 8 C K R - 5 10 C K R -5 10C W CONTROL PANEL PARTS 3-2-5 3-2-4 DOOR PARTS 3-2-1 3-2-3 3-2-2 5-1-1 MISCELLANEOUS 5-1-2 Actual wire harness may be different from illustration.
-
Page 39: Packing And Accessories
R -508CK R -510CK R -510CW PACKING AND ACCESSORIES TOP PAD ASSEMBLY FPADBB038MRE0 DOOR PROTECTION SHEET SPADP0221MRE0 PLASTIC BAG SSAKHA009WRE0 (R-508CK) TRAY HOLDER SSAKHA009WRE0 (R-510CK) SSAKHB005MRE0 (R-510CW) SPADFB015MRE0 6-5 TURNTABLE TRAY 6-8 OPERATION MANUAL 6-4 TURNTABLE SUPPORT BOTTOM PAD ASSEMBLY... - Page 40 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, record- ing, or otherwise, without prior written per- mission of the publisher. '99 SHARP CORP. (2S2.530E) Printed in U.S.A...
Need help?
Do you have a question about the R-508CK and is the answer not in the manual?
Questions and answers