Sharp R-501FK Service Manual

Sharp R-501FK Manual

Get Sharp R-501FK PDF manuals and user guides View all Sharp R-501FK manuals
Add to My Manuals
Save this manual to your list of manuals

Sharp R-501FK manual content summary:

  • Sharp R-501FK | Service Manual - Page 1
    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 TROUBLESHOOTING GUIDE ...9 TEST PROCEDURE ...10 TOUCH CONTROL PANEL
  • Sharp R-501FK | Service Manual - Page 2
    to the owner. BEFORE SERVICING 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
  • Sharp R-501FK | Service Manual - Page 3
    501FK R-501FW WARNING TO SERVICE PERSONNEL Microwave the Service Manual carefully and follow all instructions. Don't Touch ! Danger High Voltage Before Servicing 1. chassis with the use of an insulated screwdriver. Whenever troubleshooting is performed the power supply must be disconnected.
  • Sharp R-501FK | Service Manual - Page 4
    sure that the actual instrument is operating normally as specified in its instruction booklet. Important: Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard for microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing. 2) Place
  • Sharp R-501FK | Service Manual - Page 5
    SERVICE MANUAL R-501FK R-501FW MICROWAVE OVEN R-501FK/R-501FW FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVENS, R-501FK, R-501FW. It is recommended that service personnel carefully study
  • Sharp R-501FK | Service Manual - Page 6
    R-501FK R- ( 1:00 - 12:59 ) Timer (0 - 99 min. 99 seconds) Microwave Power for Variable Cooking Repetition Rate; P-HI Full power throughout the cooking time P-90 Title 21, Chapter 1, Subchapter J GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is equipped with a three prong grounding plug
  • Sharp R-501FK | Service Manual - Page 7
    operate unless the door is securely closed. 3. Removable turntable support. 4. Removable turntable. The turntable will rotate clockwise or 10 4 3 7 9 11 8 1 10. Wave guide cover. 11. Power supply cord TOUCH CONTROL PANEL R-501FK R-501FW NOTE: The directed features are disabled after one
  • Sharp R-501FK | Service Manual - Page 8
    R-501FK R-501FW OPERATION DESCRIPTION OF OPERATING SEQUENCE The following is a completion of the cooking time, the power transformer, oven lamp, etc. are turned off, and the generation of microwave energy is stopped. The oven will revert to the OFF condition. 6. When the door is opened during a
  • Sharp R-501FK | Service Manual - Page 9
    CAPACITOR HIGH VOLTAGE RECTIFIER MAGNETRON WHT WHT WHT WHT WHT WHT WHT COM. N.O. WHT WHT GRY PRIMARY WHT INTERLOCK SWITCH Figure O-2 Oven Schematic - Cooking Condition 7 R-501FK R-501FW
  • Sharp R-501FK | Service Manual - Page 10
    R-501FK R-501FW DESCRIPTION AND FUNCTION OF COMPONENTS DOOR OPEN MECHANISM The door is the magnetron if an over heated condition develops in the tube due to cooling fan failure, obstructed air guide, dirty or blocked air intake, etc. Under normal operation, the C/T fuse remains closed. However,
  • Sharp R-501FK | Service Manual - Page 11
    GUIDE R-501FK R-501FW 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
  • Sharp R-501FK | Service Manual - Page 12
    R-501FK R-501FW TEST PROCEDURE CK = Check / RE = Replace RE RE A B C D E E F F G H RE RE CK I CK VOLTAGE DIRTY OVEN CAVITY KEY UNIT RELAY (RY1) COMPU DEFROST FOIL PATTERN ON PWB. CONDITION PROBLEM Home fuse or circuit breaker blows when power cord is plugged into wall receptacle OFF CONDITION
  • Sharp R-501FK | Service Manual - Page 13
    R-501FK R-501FW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 4. To test for an is installed. 9. Run the oven and check all functions. MICROWAVE OUTPUT POWER The following test procedure should be carried out with the microwave oven in a fully assembled condition (outer case fitted). HIGH
  • Sharp R-501FK | Service Manual - Page 14
    R-501FK R-501FW TEST PROCEDURES PROCEDURE LETTER C COMPONENT TEST HIGH VOLTAGE RECTIFIER TEST air flow through the vent holes of the oven cavity, especially the cooling fan and air guide. 5. Reconnect all leads removed from components during testing. 6. Reinstall the outer case (cabinet).
  • Sharp R-501FK | Service Manual - Page 15
    PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST R-501FK R-501FW 5. If the C/T fuse is blown when the door is opened, check the secondary interlock relay, primary interlock switch and monitor switch according to the "
  • Sharp R-501FK | Service Manual - Page 16
    microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into two units, Control Unit and Key Unit, and also the Control Unit is divided into two units, LSI Unit and Power Unit, and troubleshooting
  • Sharp R-501FK | Service Manual - Page 17
    R-501FK R-501FW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1) Disconnect the power certain group of indicators do not light up. g) The figure of all digits flicker. 2-3 Other possible problems caused by defective control unit. a) Buzzer does not sound or continues to sound. b) Clock does not
  • Sharp R-501FK | Service Manual - Page 18
    14 13 12 11 10 9 R-501FK R-501FW PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST 8 7 6 5 4 3 2 1 DE FR OS T 1 COOK 4 POPCOR N R E HE AT 7 voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation. DC. voltage indicated Defective relay. DC. voltage
  • Sharp R-501FK | Service Manual - Page 19
    PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST R-501FK R-501FW M FOIL PATTERN ON THE PRINTED WIRING outer case is installed. 9) Run the oven and check all functions. 2. Follow the troubleshooting guide given below, if indicator does not light up after above check and repairs are finished.
  • Sharp R-501FK | Service Manual - Page 20
    R-501FK R-501FW 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
  • Sharp R-501FK | Service Manual - Page 21
    I/O signal of the LSI is detailed in the following table. R-501FK R-501FW Pin No. Signal 1-2 VL2-VL1 I/O Description IN Power the cook relay (RY2). The signals holds "L" level during OFF H : GND microwave cooking and "H" level while not cooking. In other cooking modes (variable cooking) the
  • Sharp R-501FK | Service Manual - Page 22
    R-501FK R-501FW Pin No. Signal I/O 27 RESET IN 28 P71 OUT 29 P70 IN 30 XIN IN 31 XOUT OUT 32 VSS IN 33 P27 OUT
  • Sharp R-501FK | Service Manual - Page 23
    . Common data signal. Connected to LCD signal COM2. Common data signal. Connected to LCD signal COM1. Power source voltage input terminal. Standard voltage for LCD. R-501FK R-501FW 21
  • Sharp R-501FK | Service Manual - Page 24
    R-501FK R-501FW TOUCH CONTROL PANEL SERVICING 1. Precautions for Handling Electronic Components This unit uses supply of the oven: CAUTION: THE HIGH VOLTAGE TRANSFORMER OF THE MICROWAVE OVEN IS STILL LIVE DURING SERVICING AND PRESENTS A HAZARD. Therefore, before checking the performance of the
  • Sharp R-501FK | Service Manual - Page 25
    501FK R-501FW WARNING AGAINST HIGH VOLTAGE: Microwave exposure to microwave energy, please follow the instructions below Without the RF gasket (Magnetron). 2. If the wave guide or oven cavity are not intact. 3. If the 3) Sharp edge: Bottom plate, Oven cavity, Waveguide flange, Chassis support and
  • Sharp R-501FK | Service Manual - Page 26
    R-501FK R-501FW CAUTION: 1. DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER voltage capacitor. 4. Disconnect wire leads from magnetron. 5. Remove the two (2) screws holding the chassis support to the magnetron and the oven cavity front flange. 6. Slide the magnetron duct slightly so that the
  • Sharp R-501FK | Service Manual - Page 27
    block it open. 3. Discharge high voltage capacitor. 4. Push the lever of positive lock® connector. 5. Pull down on the positive lock® connector. R-501FK R-501FW CAUTION: WHEN CONNECTING THE POSITIVE LOCK® CONNECTORS TO THE TERMINALS, CONNECT THE POSITIVE LOCK® SO THAT THE LEVER FACES YOU. Figure
  • Sharp R-501FK | Service Manual - Page 28
    R-501FK R-501FW Installation Disconnect the power supply cord. 2. Remove turntable and turntable support from oven cavity. 3. Lay the oven on it's backside Where the corners have been snipped off bend corner areas flat. No sharp edges must be evident after removal of the turntable motor cover. 5.
  • Sharp R-501FK | Service Manual - Page 29
    R-501FK R-501FW COOLING FAN MOTOR REMOVAL REMOVAL 1. Disconnect the power supply cord fan blade to the fan motor shaft according to the following procedure. 2. Hold the center of the bracket which supports the shaft of the fan motor on the flat table. 3. Apply the screw lock tight into the hole (
  • Sharp R-501FK | Service Manual - Page 30
    R-501FK R-501FW 3. Secure latch hook (with two (2) mounting screws) to oven flange. 4. Make opened. 4. Re-install outer case and check for microwave leakage around door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.) Latch Heads Door Switch Lever Door Sensing
  • Sharp R-501FK | Service Manual - Page 31
    Re-install choke cover to door panel by pushing. Note: After any service to the door; (A) Make sure that door sensing switch and primary interlock abnormal and do not of themselves indicate a leakage of microwave energy from oven cavity. R-501FK R-501FW Note: When carring out any repair to the door
  • Sharp R-501FK | Service Manual - Page 32
    R-501FK R-501FW A B C D E F G H 1 1 2 2 12 3 3 to Oven cavity DOOR SENSING SWITCH COM. N.O. PNK GRN GRN GRN CN-B (POWER UNIT) WHT COM. RY1 N.O. GRY COM. RY2 N.O. T1 SECONDARY INTERLOCK
  • Sharp R-501FK | Service Manual - Page 33
    1 A B C D E 2 3 4 5 R-501FK R-501FW 6 A B C D E NOTE : IF NOT SPECIFIED, 1/4W ± 5% T1 24 D1-D4 1N4002 D3 D1 LD1 LD2 LD3 LD4 WH-1 WH-1 WH-1 WH-1 10G471K VRS1 (J10) (J12) (
  • Sharp R-501FK | Service Manual - Page 34
    R 66 15k R 65 15k R 64 15k R 63 15k 4 3 2 1 2 S TAR T 5 TIME R CLOCK 8 S TOP CLE AR 0 P OWE R LE VE L 9 3 6 MINU T E PLUS C C B B R 62 15k R 61 15k R 60 15k A A 6 5 4 3 2 1 R-501FK R-501FW
  • Sharp R-501FK | Service Manual - Page 35
    C1 B Q21 D21 D4 D3 D1 C3 (J16) (J14) (J12) (J10) JP4 JP5 JP3 E D22 RY1 C2 3 D2 2 VRS1 4 S P 1 T1 FB 037 MR RY2 (J1) R-501FK R-501FW 6 A B C D E F G MCR M27A 94V-0 R H 1 Figure S-5 . Printed Wiring Board of Power Unit 2 3 4 5 33 H 6
  • Sharp R-501FK | Service Manual - Page 36
    R-501FK R-501FW 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 M OVEN PARTS H.V. Capacitor band Chassis support Latch hook Switch lever Magnetron duct Fan blade
  • Sharp R-501FK | Service Manual - Page 37
    FCOV-B204MRK0 M Door frame assembly [R-501FK] FCOV-B205MRK0 M Door frame assembly support NTNT-A099WRE0 M Turntable tray TCAUAB045MRR0 M Monitor caution label TCAUAB038MRR0 M DHHS/Screw caution label TINSEB297MRK0 M Operation manual 501FK) XOTSE40P12000 M Special screw (R-501FW) R-501FK SHARP parts
  • Sharp R-501FK | Service Manual - Page 38
    R-501FK R-501FW 1 2 3 OVEN AND CABINET PARTS A 4 5 6 7-8 A 7-8 7-6 B C D 4-8 2-3 7-9 4-7 B 7-6 7-5 6-7 1-9 1-5 4-6 C 7-9 7-3 1-13 1-8 7-5 1-6 D 7-7 4-2 7-4 E 4-9 1-10 E 6-6 1-3 6-3 6-5 7-2 7-2 7-4 4-10 4-3 7-1 1-7 1-4 4-5 1-11 1-12 F 7-5 4-11 1-6 F 6-4
  • Sharp R-501FK | Service Manual - Page 39
    1 2 3 CONTROL PANEL PARTS A 3 - 2 3 - 3 3 - 5 3-2-1 B 3-2-3 3-2-2 C D 4 3 - 4 5 3 - 1 3 - 6 R-501FK R-501FW 6 A B C DOOR PARTS 5-7 D E F G 5-1 H 1 5-4 5-6 E 5-5 F MISCELLANEOUS 5-2 5-3 G 6-1 6-2 H 6-9 Actual wire harnes s may be different from illus tration. 2 3 4 5
  • Sharp R-501FK | Service Manual - Page 40
    R-501FK R-501FW PACKING AND ACCESSORIES DOOR PROTECTION SHEET 6-5 TURNTABLE TRAY ON TOP OF THE OVEN TRAY HOLDER TOP PAD ASSEMBLY PLASTIC BAG 6-8 OPERATION MANUAL INTO THE OVEN CAVITY BOTTOM PAD ASSEMBLY 6-4 TURNTABLE SUPPORT PACKING CASE Non-replaceable items 38
  • Sharp R-501FK | Service Manual - Page 41
    NOTES R-501FK R-501FW 39
  • Sharp R-501FK | Service Manual - Page 42
    R-501FK R-501FW NOTES 40
  • Sharp R-501FK | Service Manual - Page 43
    NOTES R-501FK R-501FW 41
  • Sharp R-501FK | Service Manual - Page 44
    R-501FK R-501FW COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. 2002 SHARP CORP. (2M2.20E) Printed in U.S.A 42
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
R-501FK
R-501FW
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
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
TROUBLESHOOTING GUIDE
.............................................................................................................................
9
TEST PROCEDURE
...........................................................................................................................................
10
TOUCH CONTROL PANEL
................................................................................................................................
18
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
..................................................................
2
3
PICTORIAL DIAGRAM
........................................................................................................................................
30
POWER UNIT CIRCUIT
.......................................................................................................................................
31
CPU UNIT CIRCUIT
.............................................................................................................................................
32
PRINTED WIRING BOARD
.................................................................................................................................
33
PARTS LIST
........................................................................................................................................................
34
PACKING AND ACCESSORIES
.........................................................................................................................
38
S62M188R501FE
R-501FK
R-501FW
MICROWAVE OVEN
MODELS
SERVICE MANUAL
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-501FW