Sharp R-1500 manual

R-1500 R-1501 R-1505 R-1506 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 the following parts may result in a severe, po[...]

R-1500 R-1501 R-1505 R-1506 PRECAUTIONS T O BE OBSERVED BEFORE AND DURING SER VICING T O A VOID POSSIBLE EXPO- SURE T O EXCESSIVE MICROW A VE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and m[...]

1 R-1500 R-1501 R-1505 R-1506 W ARNING TO SER VICE 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, [...]

2 R-1500 R-1501 R-1505 R-1506 MICROW A VE 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 2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafte[...]

3 R-1500 R-1501 R-1505 R-1506 SHARP ELECTRONICS CORPORATION SHARP PLAZA, MAHWAH, NEW JERSEY 07430-2135 SER VICE MANUAL OVER THE RANGE MICROWAVE OVEN R-1500/ R-1501/ R-1505/ R-1506 FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP OVER THE RANGE MICROWAVE [...]

4 R-1500 R-1501 R-1505 R-1506 ITEM DESCRIPTION Power Requirements 120 Volts / 14 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1000 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 29-15/16" Height 16-1/4" Depth 15- 9/16" Cooking Cavity Dimensions Width 17-1/2" Height 9-7/8" 1.5 [...]

5 R-1500 R-1501 R-1505 R-1506 Electrical Requirements The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE GROUNDING PIN FROM THE PLUG. The power supply cord and plug must be connected to a separate 120 Volt AC, 60 Hz, 15 Amp. or more dedicated line, using a grounded receptacle. The receptacle should [...]

6 R-1500 R-1501 R-1505 R-1506 1000 WATTS NO. LBS. OZ. CUPS COOK DEFROST KEEP WARM BAKED POTATOES FROZEN VEGETABLES GROUND MEAT GROUND MEAT POWER LEVEL TIMER CLOCK POULTRY BONELESS STEAKS/ CHOPS POULTRY BONE-IN RICE FRESH VEGETABLES FROZEN ENTREES HOT WATER POPCORN LIGHT HI/ LO FAN HI/ LO STOP CLEAR START MINUTE PLUS REHEAT CENTER DEFROST CENTER COO[...]

7 R-1500 R-1501 R-1505 R-1506 OPERA TION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation. OFF CONDITION Closing the door activates the door sensing switch and primary interlock switch. (In this condition, the monitor switch contacts are opened.) When oven is plugged in, 120 volts A.C. is[...]

8 R-1500 R-1501 R-1505 R-1506 VENTILATION METHODS HOT AIR EXHAUST 1. VERTICAL VENTING For this venting method, hot air rising from the conventional range below is drawn in by the hood fan motor through the grease filters at the right and left sides of the base cover, up through the right and left sides of the oven cavity, then discharged vertically[...]

9 R-1500 R-1501 R-1505 R-1506 SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. COOKING TIME PROGRAMMED. 3. VARIABLE COOKING CONTROL "HIGH". 4. "START" BUTTON PRESSED. Figure O-2. Oven Schematic-Cooking Condition Figure O-1. Oven Schematic-Off Condition SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CLOCK APPEARS ON DIS[...]

10 R-1500 R-1501 R-1505 R-1506 DESCRIPTION AND FUNCTION OF COMPONENTS 3. If the door is opened, and the secondary interlock relay (RY2) and primary interlock switch contacts fail to open, the monitor fuse blows simultaneously with closing of the monitor switch contacts. CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE TEST THE DOOR SENSING SWITCH, SE[...]

11 R-1500 R-1501 R-1505 R-1506 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 t[...]

12 R-1500 R-1501 R-1505 R-1506 CK = Check / RE = Replace POSSIBLE CASE AND DEFECTIVE PARTS PROBLEM TEST PROCEDURE CONDITION OFF CONDITION IDLE CONDITION MICROWAVE COOKING CONDITION Home fuse blows when power cord is plugged into wall receptacle. Monitor fuse blows when power cord is plugged into wall receptacle. Display does not illuminate when pow[...]

13 R-1500 R-1501 R-1505 R-1506 B POWER TRANSFORMER TEST TEST PROCEDURES PROCEDURE LETTER COMPONENT 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 acr[...]

14 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT 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 capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads and check for short or open b[...]

15 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT 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. Before performing this test, make sure that the primary interlock switch and the secondary interlock relay are operating properly,[...]

16 R-1500 R-1501 R-1505 R-1506 I BLOWN MONITOR FUSE TEST TEST PROCEDURES PROCEDURE LETTER COMPONENT 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 monitor fuse is blown when the door is opened, check the secondary interlock relay, primary inter[...]

17 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST Resistance between; BLU (1) AND YLW (4) = 0 Ω (Shorted) BLK (2) AND YLW (4) = 33 Ω BLU (1) AND BLK (2) = 33 Ω BLK (2) AND WHT (3) = 11 Ω WHT (3) AND RED (5) = 22 Ω 6-PIN CONNECTOR OF HOOD FAN MOTOR 5. Reconnect all leads removed from components during testing. [...]

18 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 8) Run the oven and check all functions. 2. Control Unit. The following symptoms indicate a defective control unit. Before replacing the control unit, perform the Key unit test (Procedure M) to determine if control unit is faulty. 2-1 In connection with pads. a) When tou[...]

19 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1. Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ". 2. Open the door and block it open. 3. To discharge high voltag[...]

20 R-1500 R-1501 R-1505 R-1506 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1. Foil pattern check and repairs. 1) Disconnect the power supply cord. 2) Open the door and block it open. 3) To discharge high voltage capacitor, wait for 60 seconds. 4) Remove the control unit, referring to the procedure of " CONTROL PANEL ASSEMBLY, CONTROL UNIT [...]

21 R-1500 R-1501 R-1505 R-1506 DESCRIPTION OF LSI LSI The I/O signal of the LSI is detailed in the following table. Pin No. Signal I/O Description 1-2 VL2-VL1 IN Power source voltage input terminal. Standard voltage for LCD. 3-6 AN7-AN4 IN Terminal to change cooking input according to the Model. By using the A/D converter contained in the LSI, DC v[...]

22 R-1500 R-1501 R-1505 R-1506 15 P53 OUT Terminal not used. 16 P52 OUT Oven lamp, fan motor and turntable motor driving signal To turn on and off shut off relay (RY1). The square waveform voltage is delivered to the RY1 driving circuit and RY2 control circuit. 17-18 P51-P50 OUT Terminal not used. 19 P47 OUT Magnetron high-voltage circuit driving s[...]

23 R-1500 R-1501 R-1505 R-1506 37 P23 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of G4 line keys on key matrix is touched. 38 P22 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of G3 line keys on key matrix is to[...]

24 R-1500 R-1501 R-1505 R-1506 1. Precautions for Handling Electronic Components This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at its input and output terminals. For this reason, it is easily influenced by the sur[...]

25 R-1500 R-1501 R-1505 R-1506 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 ex[...]

26 R-1500 R-1501 R-1505 R-1506 REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven) 1. Disconnect the power supply cord, and uncoil the power supply cord. 2. To discharge the high voltage capacitor, wait for 60 seconds. 3. Remove the turntable tray and support from the oven cavity. 4. If the exhaust damper assembly is installed, r[...]

27 R-1500 R-1501 R-1505 R-1506 4. Disconnect the 6-pin connector of the hood fan motor from the main wire harness located at the right edge of the oven cavity top plate and release the snap band from the hood duct. 5. Remove the hood fan motor from the oven cavity top plate by lifting it up. 6. Now, the hood fan motor is free. 1. Disconnect the pow[...]

28 R-1500 R-1501 R-1505 R-1506 1. Disconnect the power supply cord, remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".) 2. Open the door and block it open. 3. To discharge the high voltage capacitor, wait for 60 seconds. 4. Remove the three (3) screws hold[...]

29 R-1500 R-1501 R-1505 R-1506 1. Disconnect the power supply cord. 2. Open the door and block it open. 3. To discharge the high voltage capacitor, wait for 60 seconds. 4. Remove the one (1) screw holding the base cover to the oven cavity back plate. 5. Remove the three (3) screws holding the base cover to the oven cavity front face plate. 6. Open [...]

30 R-1500 R-1501 R-1505 R-1506 13.Remove the two (2) screws holding the LCD holder to the key fixing plate. 14.Remove two (2) screws holding the power unit to the key fixing plate. 15.Release the two (2) tabs holding the power unit to the key fixing plate. 16.Release the three (3) tabs holding the LCD to the LCD holder. 17.Release the two (2) tabs [...]

31 R-1500 R-1501 R-1505 R-1506 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 tow[...]

32 R-1500 R-1501 R-1505 R-1506 1. Disconnect the power supply cord. 2. Open the door and block it open. 3. To discharge the high voltage capacitor, wait for 60 seconds. 4. Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate. 5. Remove the hood exhaust louver from the oven cavity by pushing the right and l[...]

33 R-1500 R-1501 R-1505 R-1506 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-1. Pictorial Diagram HIGH VOLTAGE RECTIFIER HIGH VOLTAGE CAPACITOR HIGH VOLTAGE WIRE A HIGH VOLTAGE COMPONENTS CONTROL UNIT POWER TRANSFORMER Power Supply cord 120V 60Hz 1 2 3 WHT GRN BLK WHT BLU GRN BLK CAVITY THERMAL CUT-OUT MAGNETRON TEMPERATURE FUSE BL[...]

34 R-1500 R-1501 R-1505 R-1506 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-2. Power Unit Circuit N.O C 1 C 7 C 3 C 5 C12 C 4 C 9 C 2 C 8 C 6 C13 C14 E 2 E 1 C11 C10 N.O COM COM B 7 B 9 B 5 B 3 B 1 A 5 A 3 A 1 + – + – T1 VRS1 (J1) R30 3.3k 10G471K D21 1SS270A D22 1SS270A D23 1SS270A D24 1SS270A D25 1SS270A D40 1SS270A D20 1SS2[...]

35 R-1500 R-1501 R-1505 R-1506 Figure S-3. LSI Unit Circuit 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H C 5 C 1 C 7 C 2 C 9 C 8 C 3 C 6 C 4 C12 C11 C14 G11 G12 G 9 G 8 KEY UNIT POPCORN RICE REHEAT CENTER POULTRY BONELESS FROZEN VEGETABLES FRESH VEGETABLES POWER LEVEL BAKED POTATOES POULTRY BONE-IN TIMER CLOCK FROZEN ENTREES HOT WATER LIGH[...]

36 R-1500 R-1501 R-1505 R-1506 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-4. Printed Wiring Board 0 F CS M 27 A 94 V 0 M B M R 35 0 R BFB DIP LOT NO. QKITPB035MRE0 RY1 VRS1 R30 T1 S 8 5 13 P C100 D26 D24 D23 D22 C21 CN-E CN-C D21 D40 D20 2 1 R2 Q21 Q1 B B ZD1 E E R1 R3 C2 D1 D3 D4 D2 D25 1 1 9 5 RY5 CN-B CN-A C1 C3 1 12 14 SP1 J[...]

37 R-1500 R-1501 R-1505 R-1506 P ARTS LIST Note: The parts marked “ ∆ ” may cause undue microwave exposure. The parts marked “ * ” are used in voltage more than 250V. " § " MARK: PARTS DELIVERY SECTION ELECTRIC PARTS 1- 1 FH-DZB016MRY0 M High voltage rectifier assembly 1 AH 1- 2 RC-QZA234WRE0 M High voltage capacitor 1 AP 1- 3 [...]

38 R-1500 R-1501 R-1505 R-1506 REF. NO. PART NO. § DESCRIPTION Q'TY CODE ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ SP1 RALM-A014DRE0 J Buzzer (PKM22EPT) 1 AG T1 RTRNPB017MRE0 M Transformer 1 BG VRS1 RH-VZA032DRE0 J Varistor (10G471K) 1 AE 3- 2 FPNLCB372MRK0 M Control panel sub. assembly [R-1500] 1 AZ 3- 2 FPNLCB373MRK0 M Control pan[...]

39 R-1500 R-1501 R-1505 R-1506 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 Order Parts from the authorized SHARP parts Distributor for your area. Defective parts requiring return should be returned as indicated in th[...]

40 R-1500 R-1501 R-1505 R-1506 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H OVEN AND CABINET PARTS 6-1-5 4-10 2-6 4-17 7-6 1-10 6-9 4-18 4-17 2-2 6-12 6-8 7-1 1-14 7-5 7-5 7-5 7-5 7-3 6-10 7-3 4-13 2-4 4-7 4-15 4-8 7-10 6-13 2-8 1-13 7-2 1-16 7-3 7-2 1-4 1-11 2-7 6-13 1-10 4-21 7-8 1-11 1-9 4-13 4-14 7-7 4-16 4-16 4-20 4-5 1-7 4-22 1-6 7-3[...]

41 R-1500 R-1501 R-1505 R-1506 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H 6-6 6-7 6-11 6-1 6-1-1 6-1-2 6-1-3 6-1-7 6-1-8 6-1-5 6-1-6 6-1-4 5-2-3 3-2-3 3-2-1 3-2-2 5-2-3 5-2-2 5-2-1 5-2 5-3 5-4 5-1 5 4-1 5-5 5-5 3-3 3-2-4 3-2 7-3 3-5 3-5 3-1 3-4 3-5 CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS[...]

42 R-1500 R-1501 R-1505 R-1506 COPYRIGHT © 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permis- sion of the publisher. '01 SHARP CORP. (8[...]