1. Manuals
  2. Brands
  3. Sharp Manuals
  4. Microwave Oven
  5. R-5L16
  6. Service manual

Sharp R-5L16 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CAUTION, MICROWAVE RADIATION ....................................................................................................... 1
WARNING .................................................................................................................................................... 1
PRODUCT SPECIFICATIONS ................................................................................................................... 2
GENERAL IMPORTANT INFORMATION ...................................................................................................2
APPEARANCE VIEW ................................................................................................................................. 3
OPERATION SEQUENCE .......................................................................................................................... 4
FUNCTION OF IMPORTANT COMPONENTS .......................................................................................... 5
SERVICING ................................................................................................................................................ 7
TEST PROCEDURE ................................................................................................................................... 9
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ..................................................... 15
MICROWAVE MEASUREMENT .............................................................................................................. 20
TEST DATA AT A GLANCE ..................................................................................................................... 21
WIRING DIAGRAM ................................................................................................................................... 22
PICTORIAL DIAGRAM ............................................................................................................................. 23
PARTS LIST ............................................................................................................................................. 24
SERVICE MANUAL
MODEL
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.

TABLE OF CONTENTS

SHARP CORPORATION
MICROWAVE OVEN
R-5L16
R-5L16
S3401R5L16EHW
Page

Advertisement

Table of Contents
loading

Related Manuals for Sharp R-5L16

Summary of Contents for Sharp R-5L16

  • Page 1: Table Of Contents

    R-5L16 SERVICE MANUAL S3401R5L16EHW MICROWAVE OVEN R-5L16 MODEL In interests of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used. TABLE OF CONTENTS Page CAUTION, MICROWAVE RADIATION ....................... 1 WARNING ..............................

  • Page 2: Caution Microwave Radiation

    R-5L16 CAUTION MICROWAVE RADIATION Personnel should not be exposed to the microwave energy which may radiate from the magnetron or other microwave generating devices if it is improperly used or connected. All input and output microwave connections, waveguides, flanges and gaskets must be secured.

  • Page 3: Warning

    MICROWAVE OVEN R5L16 GENERAL IMPORTANT INFORMATION GENERAL INFORMATION This Manual has been prepared to provide Sharp Corp. Service engineers with Operation and Service Information. It is recommended that service engineers carefully study the entire APPEARANCE VIEW text of this manual, so they will be qualified to render satisfactory customer service.
  • Page 4 R-5L16 PRODUCT DESCRIPTION SPECIFICATION ITEM DESCRIPTION Power Requirements 220-230 Volts 50 Hertz Single phase, 3 wire earthed Power Consumption 1750 W Approx. 8 A Power Output 1000 W nominal of RF microwave energy (measured by method of IEC 705) Operating fequency 2450 MHz...

  • Page 5: Appearance View

    R-5L16 APPEARANCE VIEW OVEN Turntable Door Door hinges Roller Stay Oven lamp Waveguide cover Coupling Control panel 1. Place the roller stay on the floor of Coupling the oven cavity. 2. Then place the turntable on it fitting Door lock opening to the coupling.

  • Page 6: Operation Sequence

    R-5L16 OPERATION SEQUENCE OFF CONDITION 8. MONITOR SWITCH CIRCUIT • 1. When the timer knob is at " ", the oven is OFF condition. The monitor switch SW5 is mechanically controlled by the oven door and monitors the operation of the relay RY1.

  • Page 7: Function Of Important Components

    R-5L16 FUNCTION OF IMPORTANT COMPONENTS DOOR OPEN MECHANISM CAUTION: BEFORE REPLACING A BLOWN FUSE F1 F6.3A TEST THE RELAY RY1, MONITOR SWITCH SW3 AND MONITOR RESISTOR R1 The door can be opened by pushing the door open button on FOR PROPER OPERATION. (REFER TO the control panel.
  • Page 8 R-5L16 ° THERMAL CUT-OUT 125 C TC1 (MG) 2. After approx, 6msec. the contacts of the surge relay RY2 close and the line voltage is supplied to the high voltage transformer T. The thermal cut-out protects the magnetron against over- 3.

  • Page 9: Servicing

    Sharp recommend that wherever possible fault-finding is carried out with the supply disconnected. It may in, some cases, be necessary to connect the supply after the outer case has been removed, in this event carry out 3D checks and then disconnect the leads to the primary of the power transformer.
  • Page 10 R-5L16 TEST PROCEDURE A B C D E E E E E F G G G H I J K L POSSIBLE CAUSE DEFECTIVE PARTS PROBLEM CONDITION Home fuse or breaker blows when power cord is plugged into wall outlet.
  • Page 11 R-5L16 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER MAGNETRON TEST NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED TOOL WHILE THE OVEN IS IN OPERATION. CARRY OUT 3D CHECK Isolate the magnetron from high voltage circuit by removing all leads connected to filament terminal.

  • Page 12: Test Procedure

    R-5L16 TEST PROCEDURES (CONT'D) PROCEDURE COMPONENT TEST LETTER Initial temperature ......................T1 = 11°C Temperature after (42 + 3) = 45 sec................T2 = 21°C Temperature difference Cold-Warm ................∆T1 = 10°C Measured output power The equation is “P = 100 x ∆T” ............P = 100 x 10°C = 1000 Watts ±...
  • Page 13 R-5L16 TEST PROCEDURES (CONT'D) PROCEDURE LETTER COMPONENT TEST Isolate the high voltage rectifier assembly from the HV circuit. The asymmetric can be tested using an ohmmeter set to its highest range across the terminals A+B of the asymmetric rectifier and note the reading obtained.
  • Page 14 R-5L16 TEST PROCEDURES (CONT'D) PROCEDURE LETTER COMPONENT TEST An open circuit thermal cut-out (OVEN) indicates that the foods in the oven may catch fire, this may be due to over heating produced by improper setting of the cooking timer or failure of the control panel.
  • Page 15 R-5L16 TEST PROCEDURES (CONT'D) PROCEDURE COMPONENT TEST LETTER VARI-MODE ON TIME OFF TIME HIGH 26.4 sec 0 sec. (approx. 100% power) MEDIUM HIGH 20.4 sec 6 sec. (approx. 70% power) MEDIUM 14.5 sec 11.9 sec. (approx. 50% power) MEDIUM LOW 8.6 sec...
  • Page 16 R-5L16 TEST PROCEDURES (CONT'D) PROCEDURE COMPONENT TEST LETTER NOISE FILTER TEST CARRY OUT 3D CHECKS F6.3A Disconnect the leads from the terminals of noise filter. Cx ± 20% Cy ± 20% L (min) Using an ohmmeter, check between the terminals as de- 1.0mH...

  • Page 17: Component Replacement And Adjustment Procedure

    R-5L16 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WARNING: Avoid possible exposure to microwave energy. Please follow the instructions below before operating the oven. 1. CARRY OUT 3D CHECKS. 1. Door does not close firmly. 2. Make sure that a definite” click” can be heard when the 2.
  • Page 18 5. Turntable is now free. 3. Where the corners have been snipped off bend corner 6. After replacement use the one (1) screw allocated to fit areas flat. No sharp edge must be evident after removal the TT motor cover. of TT motor cover.
  • Page 19 R-5L16 POWER SUPPLY CORD REPLACEMENT Removal Re-install 1. CARRY OUT 3D CHECKS. 1. Insert the moulding cord stopper of power supply cord 2. Remove the single (1) screw holding the green/yellow into the square hole of the rear cabinet, referring to the wire to the chassis support.
  • Page 20 R-5L16 latch hook to oven cavity front flange and adjust the latch 2ND. LATCH hook position. SWITCH LATCH HOOK After adjustment, make sure of following: 1. In and out play of door remains less than 0.5 mm when PRIMARY latched position. First check latch hook position, pushing LATCH SWITCH and pulling the door toward the oven face.
  • Page 21 R-5L16 2. Remove fasteners positioned behind choke. CHOKE COVER REMOVAL 3. Release door frame plastic clips by levering towards door 1. Insert an iron plate (thickness of about 0.5mm) or flat type centre, while applying a gentle force to remove frame.

  • Page 22: Microwave Measurement

    R-5L16 MICROWAVE MEASUREMENT After adjustment of door latch switches, monitor switch Recommended instruments are: and doorare completed individually or collectively, the fol- NARDA 8100 lowing leakage test must be performed with a survey instru- NARDA 8200 ment and it must be confirmed that the result meets the...
  • Page 23 R-5L16 TEST DATA AT A GLANCE Parts Symbol Value / Data R-2V15 Fuse F6.3A/250V Special fuse F10A/250V Monitor resistor 4.3Ω 20W Surge resistor 10Ω 20W Thermal cut-out (MG) 125°C Thermal cut-out (OVEN) 125°C Relay Approx. 1.7kΩ Surge relay Approx. 15kΩ...
  • Page 24 R-5L16 SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED 2. TIMER KNOB AT " " POSITION Figure O-1 Oven Schematic-OFF Condition SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED 2. MICROWAVE POWER CONTROL "HIGH" 3. TIMER ON 4. COOK SWITCH PUSHED...
  • Page 25 R-5L16...

  • Page 26: Parts List

    R-5L16 PARTS LIST ∆ Note: The parts marked " " may cause undue microwave exposure The parts marked "*" are used in voltage more than 250V. / "§" MARK: SPARE PARTS-DELIVERY SECTION. REF. NO. PART NO. § DESCRIPTION Q'TY CODE...
  • Page 27 R-5L16 ∆ Note: The parts marked " " may cause undue microwave exposure The parts marked "*" are used in voltage more than 250V. / "§" MARK: SPARE PARTS-DELIVERY SECTION. REF. NO. PART NO. § DESCRIPTION Q'TY CODE DOOR PARTS ∆...
  • Page 28 R-5L16 OVEN PARTS 7-12 6-11 7-12 7-18 2-5-1 7-13 7-13 7-15 7-13 4-19 4-27 4-21 7-12 4-10 4-20 7-11 7-12 4-13 4-12 7-12 4-14 4-11 7-12 4-17 4-18 7-10 4-15 7-14 4-25 4-23 4-16 7-12 7-16 4-22 7-12 4-24 7-12...
  • Page 29 R-5L16 7-17 CONTROL PANEL PARTS SW4-a 6-10 5-11 DOOR PARTS 5-11 5-11 5-11 5-10...
  • Page 30 R-5L16 MISCELLANEOUS . Actual harnesses may be different than illustrations. PACKING AND ACCESSORIES PACKING PAD KIT DOOR PROTECTION SHEET PLASTIC BAGE ROLLER STAY PRINTED MATTER PLASTIC BAG TRAY PACK TURNTABLE TRAY TRAY PACK SEQUENCE OF ASSEMBLY 1. Place roller stay on top of printed matter 2.
  • Page 31 R-5L16...
  • Page 32 R-5L16 '94 SHARP CORP. (2S1.31E) Printed in Germany...

Table of Contents