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Table of Contents
- 1 Table of Contents
- 2 Precautions to be Observed before and During Servicing to Avoid Possible Exposure to Excessive Microwave Energy
- 3 Before Servicing
- 4 Warning to Service Personnel
- 5 Microwave Measurement Procedure
- 6 Product Description
- 7 Troubleshooting Guide
- 8 Test Procedure
- 9 Parts List
- 10 Packing and Accessories
- Download this manual
This is a supplemental Service Manual for Models R-230BK and R-230BW. The R-230BK and R-230BW are quite
similar to base model R-220BW. Use this supplemental manual together with the Base Model Service Manual (Refer
No. is S1803R220BPW/) 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 SPECIFICATIONS .............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................... 5
SCHEMATIC DIAGRAM ........................................................................................................................................ 5
TROUBLESHOOTING GUIDE .............................................................................................................................. 6
TEST PROCEDURE .............................................................................................................................................. 6
PICTORIAL DIAGRAM .......................................................................................................................................... 7
CONTROL PANEL CIRCUIT ................................................................................................................................. 8
PARTS LIST .......................................................................................................................................................... 9
PACKING AND ACCESSORIES ......................................................................................................................... 11
SHARP CORPORATION
SERVICE MANUAL
MODELS
1.Gr oun d
mea t
2.St eaks /cho
ps
3.Ch icke n
piec es
COM PU
DEF ROS
T
SNA CKS
PO PCO RN
BEV ERA
GE
COO KIN G
BAK ED
PO TAT O
FRE SH
VEG ETA BLE
S
REH EAT
ING
DIN NER
PLA TE
RO LL,
MU FFI N
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-230BK
R-230BW
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-230BK
R-230BW
S2804R230BPW/
Page
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Table of Contents
Related Manuals for Sharp R-230BK
Summary of Contents for Sharp R-230BK
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Page 1: Table Of Contents
Assembly, High Voltage Harness etc..) This is a supplemental Service Manual for Models R-230BK and R-230BW. The R-230BK and R-230BW are quite similar to base model R-220BW. 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-230BK R-230BW 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-230BK R-230BW 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 R-230BK/ R-230BW FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-230BK, R-230BW. The models R-230BK and R-230BW is quite similar to base model R-220BW (Refer No. is S1803R220BPW/).
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Page 6: Product Description
R-230BK R-230BW PRODUCT DESCRIPTION SPECIFICATIONS ITEM DESCRIPTION Power Requirements 120 Volts 60 Hertz Single phase, 3 wire grounded Power Consumption 1100W / Approx. 9.5 Amperes Power Output 700 W nominal of RF microwave energy (IEC 705 Test procedure) Operating frequency 2450 MHz Case Dimensions Width 18-1/8"... - Page 7 R-230BK R-230BW TOUCH CONTROL PANEL 1.Ground meat 2.Steaks/chops COMPU 3.Chicken pieces DEFROST SNACKS POPCORN BEVERAGE COOKING BAKED FRESH POTATO VEGETABLES REHEATING DINNER ROLL, PLATE MUFFIN SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED CLOCK APPEARS ON DISPLAY C/T FUSE MAGNETRON THERMAL CUT-OUT COM.
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Page 8: Troubleshooting Guide
R-230BK R-230BW 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 9 R-230BK R-230BW TEST PROCEDURES (CONT'D) PROCEDURE COMPONENT TEST LETTER KEY UNIT 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. If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable is making good contact, verify that the door sensing switch (stop switch) operates properly;...
- Page 10 R-230BK R-230BW...
- Page 11 R-230BK R-230BW 10kF /16v 0.01 IZA868DR 220k 220k 220k 3.3k (J6) 4.7k (J7) 220k /50v (J4) (J5) (J2) (J3) 2SA933 HZ4C3 /16v 0.01 /16v /16v 0.01 4.7k /16v 0.01 – 3.3k /25v /50v SP30 (J1) VRS1...
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Page 12: Parts List
Turntable motor (Interchangeable) 1-11 RTHM-A078WRE0 Thermal cut-out 125˚C 1-12 RTRN-A561WRE0 Power transformer CABINET PARTS 2- 1 GCABUA657WRP0 Outer case cabinet [R-230BK] 2- 1 GCABUA659WRP0 Outer case cabinet [R-230BW] 2- 2 GDAI-A304WRP0 Bottom plate 2- 3 GLEGPA074WRE0 Foot CONTROL PANEL PARTS... - Page 13 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 14 R-230BK R-230BW OVEN AND CABINET PARTS 7-10 7-10 4-17 6-10 4-14 6-10 4-11 6-11 1-11 4-16 1-10 4-10 4-15 1-12 4-13 4-12...
- Page 15 R-230BK R-230BW Befor attaching Control unit to Control panel. Foil side of Control unit must be cleaned by ethyl- CONTROL PANEL PARTS alcohol. 3-2-2 DOOR PARTS 3-2-1 MISCELLANEOUS Actual wire harness may be different than illustration.
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Page 16: Packing And Accessories
No part of this publication may be reproduced, stored in a retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. '98 SHARP CORP. (2S2.530E) Printed in U.S.A...