R216LS SERVICE MANUAL S6605R216LPST MICROWAVE OVEN MODEL POPCORN 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.
CONTENTS PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY CHAPTER 1. WARNING TO SERVICE PERSONNEL [1] Before Servicing .........................................1-1 [2] When the testing is completed, ..................1-1 [3] After repairing .............................................1-1 CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE [1] Requirements: ............................................2-1 [2] Preparation for testing: .....................
R216LS R216LS Service PRECAUTIONS TO BE OBSERVED BEFORE AND Manual DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open.
R216LS Service Manual CHAPTER 1. WARNING TO SERVICE PERSONNEL R216LS 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 Voltage Rectifier Assembly, High Voltage Harness etc.. Read the Service Manual carefully and follow all instructions.
R216LS Service Manual CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE R216LS [1] 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 purchaser, and thereafter (through the useful life of the oven), 5 mW/cm2 at any point 5cm or more from the external surface of the oven. 2.
R216LS CHAPTER 3. FOREWORD AND WARNINGService R216LS Manual [1] FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-216LS. 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. Check the interlock switches and the door seal carefully.
R216LS CHAPTER 4. PRODUCT DESCRIPTION R216LS Service Manual [1] SPECIFICATIONS ITEM Power Requirements Power Consumption Power Output Case Dimensions Cooking Cavity Dimensions (0.8 Cubic feet) Control Complement Oven Cavity Light Safety Standard DESCRIPTION 120 Volts 60 Hertz Single phase, 3 wire grounded 1170W / Approx.
R216LS CHAPTER 5. GENERAL INFORMATION R216LS Service Manual [1] GROUNDING INSTRUCTIONS This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the National Electrical Code and local codes and ordinances. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current.
R216LS 2. TOUCH CONTROL PANEL POPCORN DEFROST REHEAT COOK SHORT CUTS WARM 1 4 7 POWER LEVEL SOFTEN 2 5 8 0 STOP CLEAR 3 6 9 TIMER CLOCK START MINUTE PLUS NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes 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.
R216LS CHAPTER 6. OPERATION R216LS Service Manual [1] DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation. 1. OFF CONDITION 3. POWER LEVEL COOKING Closing the door activates door sensing switch and secondary interlock switch. (In this condition, the monitor switch contacts are opened.) When Variable Cooking Power is programmed, the 120 volts A.C.
R216LS [2] OVEN SCHENATIC 1. Off Condition SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED 2. CLOCK APPEARS ON DISPLAY NOTE: " " indicates components with potentials above 250V L TEMPERATURE FUSE (OVEN) LINE BYPASS CAPACITOR 0.0033μF / AC 250V (RY-2) (RY-1) A3 PRIMARY INTERLOCK RELAY CAPACITOR 0.82μF AC2100V or AC1900V CONTROL UNIT A1 LINE BYPASS CAPACITOR 0.0033μF / AC 250V GRN 120V AC 60 Hz POWER TRANSFORMER NOISE SUPPRESSION COIL LINE CROSS CAPACITOR 0.
R216LS [3] DESCRIPTION AND FUNCTION OF COMPONENTS 1. DOOR OPEN MECHANISM 4. TURNTABLE MOTOR The door is opened by pushing the open button on the control panel, refer to the Figure D-1. The turntable motor rotates the turntable located on the bottom of the oven cavity, so that the food on the turntable is cooked evenly. The turntable may turn in either direction. When the open button is pushed, the open button pushes up the switch lever, and then the switch lever pushes up the latch head.
R216LS CHAPTER 7. TROUBLESHOOTING GUIDEService R216LS Manual 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. These tests are given a procedure letter which will be found in the "Test Procedure "section.
R216LS CHAPTER 8. TEST PROCEDURES R216LS Service Manual [1] Procedure A: MAGNETRON ASSEMBLY 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. 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.
R216LS 6. Reinstall the outer case (cabinet). 7. Reconnect the power supply cord after the outer case is installed. 8. Run the oven and check all functions. NOTE: Be sure to use an ohmmeter that will supply a forward bias voltage of more than 6.3 volts. [4] Procedure D: HIGH VOLTAGE CAPACITOR 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.
R216LS 7. Reconnect the power supply cord after the outer case is installed. 8. Run the oven and check all functions. 2. PRIMARY INTERLOCK RELAY (RY2) 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 two (2) wire leads from the male tab terminals of the Primary Interlock Relay. Check the state of the relay contacts using a ohmmeter. The relay contacts should be open.
R216LS [10] Procedure I: NOISE FILTER TEST 1. Disconnect the power supply cord, and then remove outer case. NOISE FILTER 2. Open the door and block it open. N L 3. Discharge high voltage capacitor. FUSE 15A LINE CROSS CAPACITOR 0.22μF / AC 250V 4. Disconnect the lead wires from the terminal the noise filter. Using an ohmmeter, check between the terminals as described in the following table. If incorrect reading are obtained, replace the noise filter. NOISE SUPPRESSION COIL 5.
R216LS b) When touching the pads, no pads produce a signal. 2) In connection with indicators a) At a certain digit, all or some segments do not light up. b) At a certain digit, brightness is low. c) Only one indicator does not light. d) The corresponding segments of all digits do not light up; or they continue to light up. e) Wrong figure appears. f) A certain group of indicators do not light up. g) The figure of all digits flicker. 3) Other possible problems caused by defective control unit.
R216LS These relays are operated by D.C. voltage Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation. DC. voltage indicated ................. Defective relay. DC. voltage not indicated ........... Check diode which is connected to the relay coil. If diode is good, control unit is defective. RELAY SYMBOL RY1 RY2 OPERATIONAL VOLTAGE Approx. 12.5V D.C. Approx. 11.2V D.C. CONNECTED COMPONENTS Oven lamp / Turntable motor / Cooling fan motor Power transformer 8.
R216LS 7) Follow the troubleshooting guide given below for repair. STEPS 1 2 OCCURRENCE The rated AC voltage is not present between Pin No. 1 of the 3-pin connector (A) and the normal open terminal of the relay RY2 The rated AC voltage is present at primary side of low voltage transformer. 8) Disconnect the power supply cord and then remove outer case. 9) Open the door and block it open. 10)Discharge high voltage capacitor. 11)Reconnect all leads removed from components during testing.
R216LS Service Manual CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY R216LS [1] OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units as shown in the touch control panel circuit. (1) Key Unit (2) Control Unit The principal functions of these units and their related signals are explained below. 1. Key Unit The key unit is composed of a matrix, signals generated in the LSI are sent to the key unit through P24, P25, P26, P31, P32 and P33.
R216LS 2) Open the door and block it open. 3) Discharge high voltage capacitor. 4) Disconnect the leads to the primary of the power transformer. 5) Ensure that these leads remain isolated from other components and oven chassis by using insulation tape. 6) After that procedure, re-connect the power supply cord. After checking the performance of the touch control panel, 1) Disconnect the power supply cord. 2) Open the door and block it open. 3) Re-connect the leads to the primary of the power transformer.
R216LS Service Manual SOLDER CHAPTER 10. PRECAUTIONS FOR USING LEAD-FREE R216LS [1] Employing lead-free solder The "Main PWB" of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder. Example: Indicates lead-free solder of tin, silver and copper [2] Using lead-free wire solder When repairing a PWB with the "LF" symbol, only lead-free solder should be used.
R216LS Service AND Manual ADJUSTMENT PROCECHAPTER 11. COMPONENT REPLACEMENT R216LS DURE [1] WARNING WARNING AGAINST HIGH VOLTAGE: Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in severe, possibly fatal, electric shock. (Example) High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. WARNING: Avoid possible exposure to microwave energy.
R216LS Special screw Screw Driver (Type: TORX T20 H or GTXH20-100) [3] MAGNETRON REMOVAL 1. Disconnect the power supply cord and remove outer case. 7. Remove the four (4) screws holding the magnetron to the waveguide. 2. Open the oven door and block it open. 8. Remove the magnetron from waveguide. 3. Discharge high voltage capacitor. 9. Now, the magnetron is free. 4. Remove the two (2) screws holding the air duct to the oven cavity. CAUTION: WHEN REPLACING THE MAGNETRON, BE SURE THE R.F.
R216LS 3. Discharge high voltage capacitor. Terminal 4. Push the lever of positive lock® connector. 5. Pull down on the positive lock® connector. Positive lock¨ connector CAUTION: WHEN CONNECTING THE POSITIVE LOCK® CONNECTORS TO THE TERMINALS, INSTALL THE POSITIVE LOCK® SO THAT THE LEVER FACES YOU. 1 Push Lever 2 Pull down Figure C-1. positive lock® connector [7] CONTROL PANEL ASSEMBLY REMOVAL 1. Disconnect the power supply cord and remove outer case. 5.
R216LS [9] POWER SUPPLY CORD REPLACEMENT 1. REMOVAL 7. Now, the power supply cord is free. 1. Disconnect the power supply cord, and remove outer case. 2. REINSTALL 2. Open the door and block it open. 3. Discharge high voltage capacitor. 1. Insert the moulding cord stopper of power supply cord into the square hole of the rear cabinet, referring to the Figure C-3 (b). 4. Remove the single (1) screw holding the green wire to the oven cavity back plate. 2.
R216LS 3. Apply the screw lock tight into the hole (for shaft) of the fan blade. 8. Remove the fan blade assembly from the shaft of the fan motor by pulling and rotating the fan blade with your hand. 9. Now, the fan blade will be free. 4. Install the fan blade to the shaft of fan motor by pushing the fan blade with a small, light weight, ball peen hammer or rubber mallet. CAUTION: DO NOT RE-USE THE REMOVED FAN BLADE BECAUSE THE HOLE (FOR SHAFT) MAY BE LARGER THAN NORMAL.
R216LS 2. After adjustment, check the following. 1. In and out play of door remains less than 0.5mm when in the latched position. First check upper position of latch hook, pushing and pulling upper portion of door toward the oven face. Then check lower portion of the latch hook, pushing and pulling lower portion of the door toward the oven face. Both results (play in the door) should be less than 0.5mm. Latch Hook Door Door Sensing Switch Latch Heads 2.
R216LS 4. SEALER FILM 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. Therefore, occasional appearance of moisture, light or sensing of gentle warm air movement around oven door is not abnormal and do not of themselves, indicate a leakage of microwave energy from oven cavity. 1.
R216LS CHAPTER 12. CIRCUIT DIAGRAMS BLK T1 CONTROL PANEL 2 1 CN-B RY2 PRIMARY INTERLOCK RELAY N.O. COM. GRN GRN CN-B 2 GRY 1 GRN GRN GRY GRY GRY N.O. DOOR SENSING SWITCH COM CN-A 3 RED 2 1 GRY BLK N.C. COM GRY WHT RED ORG TEMPERATURE FUSE (OVEN) TURNTABLE MOTOR GRY GRY G R N Screw GRY WHT Power Supply Cord GRY FUSE GRY Oven Cavity Back Plate WHT ORG WHT RED Noise Filter WHT RED (WHT) H.V.
Figure S-2. Control Panel Circuit 12 – 2 CN-B B2P-VH-B DOOR SW. POWER TRANSFORMER AC OVEN LAMP TERNTABLE MOTOR FAN MOTOR AC120V 60HZ AC B2 B1 A1 A3 < POWER UNIT > RY2 DU12D1-1P(M)-R - + Q21 DTD143ES - 470uF/25V 10uF/35V + (J12) (J13) (J10) (J11) D40 SP1 (J14) (J15) Q22 DTA123JS 910 1/2W R4 220uF/10V ZD1 NOTE - + DOOR M COM BZ AN3 AN4 AN5 VR INT -5V C1 R30 VRS1 10G471K a GND 0.1uF/50V 3.3K 0.1uF/25V C20 15K R41 0.
R216LS [3] Printed Wiring Board (Figure S-3) DIP 2 1 Q22 B 5 C21 4 Q21 E ZD1 R4 C8 E (J15) (J14) (J12) (J13) D40 D22 CHIP SIDE UNIT CODE CN-B (J10) (J11) 3 SP1 D20 D21 C2 1 2 (J1) D1 P D2 D3 D4 RY1 RY2 CN-A 3 1 VRS1 S T1 Figure S-3.
R216LS MENO 12 – 4
R216LS PartsGuide PARTS GUIDE MICROWAVE OVEN HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. DESCRIPTION MODEL R-216LS Parts marked "*" may cause undue microwave exposure. Parts marked " " are used in voltage more than 250V.
R216LS [1] OVEN PARTS 7-8 7-3 2-1 7-8 7-8 7-3 4-6 7-8 7-6 7-8 1-8 7-8 4-9 7-1 1-10 4-11 7-8 1-3 1-2 7-1 7-7 7-6 6-4 1-12 4-4 7-2 4-5 7-6 7-9 4-14 6-3 7-2 7-2 4-8 B 1-7 6-1 1-6 7-4 4-1 4-10 7-1 1-1 4-7 1-9 1-2 7-7 7-5 1-1 6-2 1-11 4-2 1-4 2-2 1-5 7-1 7-8 2-3 4-15 4-3 7-8 7-8 7-2 7-8 7-8 7-8 2-3 2 4-12 4-13
R216LS NO.
R216LS [2] DOOR AND CONTROL PANEL PARTS 5-7 5-6 5-1 5-2 5-2-1 5-2-2 5-3 5-2-3 5-5 5-4 Before attaching Control unit to Control panel, foil side of Control unit must be cleaned by ethyl3-1-4 3 3-1-3 3-5 B 3-1-1 3-1 3-4 3-6 6-5 3-1-2 3-2 3-3 3-2-1 3-2-2 4 6-6
R216LS NO.
R216LS INDEX PARTS CODE [ D ] DPWBFC545WRUZ [ F ] FACCDA107WREZ FACCDA108WREZ FBTN-A146WRKZ FDORFA397WRTZ FFS-BA026WRKZ FFS-BA038WRKZ FH-DZA114WRKZ FPNLCB910WRKZ FPWBFA385WRKZ FROLPA101WRKZ FWAKPA373WRKZ FW-VZC044WREZ [ G ] GCABUA966WRPZ GCOVHA424WRFZ GDAI-A377WRWZ1 GLEGPA104WREZ GMADIA118WRRZ GWAKPA871WRFZ [ H ] HDECQA236WRPZ HDECQA237WRRZ HDECQA238WRRZ HDECQA239WRPZ HPNL-A785WRRZ [ J ] JBTN-B187WRFZ [ L ] LANGFA267WRPZ LBNDKA168WRPZ LSTPPA205WRFZ LX-CZ0052WRE0 LX-CZA070WRE0 LX-CZA073WRE0 LX-EZA042WRE0 [