Table of Contents
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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 .......................................................................................................................................................... 7
TROUBLESHOOTING GUIDE ............................................................................................................................ 11
TEST PROCEDURE ............................................................................................................................................ 12
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................ 21
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 26
PICTORIAL DIAGRAM ........................................................................................................................................ 34
POWER UNIT CIRCUIT ...................................................................................................................................... 35
LSI UNIT CIRCUIT ............................................................................................................................................... 36
INDICATOR CIRCUIT .......................................................................................................................................... 37
PRINTED WIRING BOARD ................................................................................................................................. 38
PARTS LIST ........................................................................................................................................................ 39
PACKING AND ACCESSORIES ......................................................................................................................... 44
SHARP CORPORATION
SERVICE MANUAL
MODELS
HELP
OFF
COOK
T TURNTA BLE
SENSOR DEFROS
1 Coffee/t ea
2 Roll/mu ffin, fresh
CUST OM
3 Roll/mu ffin, frozen
HELP
BREA KFAS
T
4 Hot cereal
5 Scramb led eggs
MINUT E
1 Dinner plate
2 Pasta/cas serole
PLUS
3 Frozen entree
LUNC H
4 Frozen snack
5 Pizza, slice
POPCOR N
1 Baked potatoes
2 Fresh vegetables
3 Frozen vegetables
COMPU
4 Rice
DEFROST
5 Ground meat
DINNER
6 Fish/Seafood
7 Chicken breasts
8 Turkey breast
MEMORY
COOK
9 Roast pork
0 Meat loaf
3
4
5
1
2
0
6
7
8
9
POWER
TIMER
STOP
START
LEVEL
CLOCK
CLEAR
TOUCH ON
TURNTABLE
WORK
NIGHT
FAN
ON/OFF
LIGHT
LIGHT
HI/LO
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, possibly fatal, electrical shock. (High Voltage Capaci-
tor, High Voltage Power Transformer, Magnetron, High Volt-
age Rectifier Assembly, High Voltage Harness etc..)
TABLE OF CONTENTS
OVER THE RANGE
MICROWAVE OVEN
R-1600
R-1601
R-1602
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-1600
R-1601
R-1602
S4910R1600X//
Page
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Table of Contents
Related Manuals for Sharp R-1600
Summary of Contents for Sharp R-1600
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Page 1: Table Of Contents
R-1600 R-1601 R-1602 SERVICE MANUAL S4910R1600X// OVER THE RANGE MICROWAVE OVEN R-1600 MODELS R-1601 HELP COOK T TURNTA BLE SENSOR DEFROS 1 Coffee/t ea 2 Roll/mu ffin, fresh CUST OM 3 Roll/mu ffin, frozen HELP BREA KFAS 4 Hot cereal... -
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-1600 R-1601 R-1602 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-1600 R-1601 R-1602 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: Foreword And Warning
OVER THE RANGE MICROWAVE OVEN R-1600 / R-1601 / R-1602 GENERAL INFORMATION FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. OPERATION Service Personnel with Operation and Service Information for the SHARP OVER THE RANGE MICROWAVE OVEN, R-1600, R-1601, R-1602. -
Page 6: Product Specifications
R-1600 R-1601 R-1602 PRODUCT SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts / 14 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1000 watts (IEC-705 TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 29-15/16" Height 16-3/8" Depth 15- 1/16" (Not including the door handle) Cooking Cavity Dimensions Width 21"... -
Page 7: Oven Diagram
R-1600 R-1601 R-1602 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. - Page 8 R-1600 R-1601 R-1602 CONTROL PANEL DEFROST TURNTABLE COOK HELP 1 Coffee/tea 2 Rolls/muffins, fresh CUSTOM BREAKFAST 3 Rolls/muffins, frozen HELP 4 Hot cereal 5 Scrambled eggs 1 Dinner plate MINUTE 2 Pasta/casserole PLUS LUNCH 3 Frozen entrees 4 Frozen snacks...
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Page 9: Operation
(Figure O-1). monitor switch contacts first open, and then the contacts of the secondary interlock switch and door 1. The display will show "SHARP SIMPLY THE BEST sensing switch close. PRESS CLEAR AND PRESS CLOCK". If the secondary interlock switch and primary interlock relay... - Page 10 R-1600 R-1601 R-1602 BREAKFIRST, LUNCH, DINNER 3. RE-CIRCULATION (INSIDE VENTING) The air handing is the same as VERTICAL VENTING BREAKFIRST, LUNCH, DINNER will automatically com- except that the final air discharge is directed horizontally pute the microwave power and cooking time. Set the desired through the upper front of the oven into the kitchen.
- Page 11 R-1600 R-1601 R-1602 SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED CLOCK APPEARS ON DISPLAY CAVITY MAGNETRON THERMAL CUT-OUT TEMPERATURE FUSE CONTROL UNIT COM. N.O. FUSE POWER TRANSFORMER HOOD FAN THERMAL High CUT OUT N.C. DOOR SENSING SWITCH HOOD 120 V AC.
- Page 12 R-1600 R-1601 R-1602 DESCRIPTION AND FUNCTION OF COMPONENTS DOOR OPEN MECHANISM CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE TEST THE DOOR SENSING SWITCH, The door is opened by pulling the door handle, refer to the PRIMARY INTERLOCK RELAY (RY2), SEC- Figure D-1.
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Page 13: Troubleshooting Guide
R-1600 R-1601 R-1602 HOOD LAMP This air is then expelled either vertically or horizontally through the customer supplied duct system, or discharged The hood lamps are mounted at the hood lamp angle on the back into the kitchen. base cover. The hood lamps can be turned off and on by touching the WORK LIGHT pad or the NIGHT LIGHT pad. - Page 14 R-1600 R-1601 R-1602 CK = Check / RE = Replace CK LOW VOLTAGE CK NO POWER AT OUTLET RE SHORTED IN POWER CORD CK OPENED OR SHORTED WIRING CK HOOD MOTOR CAPACITOR RE HOOD LAMP OR SOCKET CK TURNTABLE OFF CONDITION...
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Page 15: Test Procedure
R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 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. - Page 16 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER (HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH VOLTAGE.) HIGH VOLTAGE RECTIFIER TEST 1. Disconnect the power supply cord, and then remove outer case.
- Page 17 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 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. CAUTION: IF THE THERMAL CUT-OUT OR TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE THERMAL CUT-OUT OR TEMPERATURE FUSE.
- Page 18 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER with the door opened (in this condition the plunger of the monitor switch is pushed in), the meter should indicate an open circuit. If improper operation is indicated, the switch may be defective. After testing the monitor switch, reconnect the wire lead to the monitor switch (COM) terminal and check the continuity of the monitor circuit.
- Page 19 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER Resistance between; BLU (1) AND YLW (4) = (Shorted) BLK (2) AND YLW (4) = 32 HOOD FAN BLU (1) AND BLK (2) = 32 CAPACITOR BLK (2) AND WHT (3) = 20...
- Page 20 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 6) Re-install the outer case (cabinet). 7) Reconnect the power supply cord after the outer case is installed. 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.
- Page 21 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER RELAY 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. Disconnect the leads to the primary of the power transformer.
- Page 22 R-1600 R-1601 R-1602 TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER STEPS OCCURRENCE CAUSE OR CORRECTION Only pattern at "a" is broken. *Insert jumper wire J1 and solder. Pattern at "a" and "b" are broken. *Insert the coil RCILF2003YAZZ between "c" and "d".
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Page 23: Touch Control Panel Assembly
R-1600 R-1601 R-1602 TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units 7) Relay Circuit as shown in the touch control panel circuit. To drive the magnetron, fan motor, stirrer motor, turnta-... -
Page 24: Description Of Lsi
R-1600 R-1601 R-1602 DESCRIPTION OF LSI LSI(IZA958DR) The I/O signal of the LSI(IZA958DR) is detailed in the following table. Pin No. Signal Description AN10 Signal coming from touch key. When either G10 line on key matrix is touched, a corresponding signal out of P10, P11, P12, P13, P14 and P17 will be input into AN10. - Page 25 R-1600 R-1601 R-1602 Pin No. Signal Description Magnetron high-voltage circuit driving signal. To turn on and off the cook VARI-MODE ON TIME OFF TIME relay(RY2). In P-HI operation, the P-HI (100% power) 32 sec. 0 sec. signals holds "L" level during mi- P-90 (approx.
- Page 26 R-1600 R-1601 R-1602 Pin No. Signal Description AVCC A/D converter power source voltage. The power source voltage to drive the A/D converter in the LSI. Connected to GND. 91-92 AN0-AN1 Terminal not used. To input signal which communicates the door open/close information to LSI.
- Page 27 R-1600 R-1601 R-1602 SERVICING 1. Precautions for Handling Electronic Components 4) Re-install the outer case (cabinet). This unit uses CMOS LSI in the integral part of the 5) Re-connect the power supply cord after the outer circuits. When handling these parts, the following case is installed.
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Page 28: Component Replacement And Adjustment Procedure
3. The door gasket or seal is damaged. 4. If the outer case (cabinet) is not fitted. WARNING FOR WIRING To prevent an electric shock, take the following pre- 3) Sharp edge: cautions. Bottom plate, Oven cavity, Waveguide flange, 1. Before wiring, Chassis support and other metallic plate. - Page 29 R-1601 R-1602 to remove. exhaust louver ( for R-1600 only) 5. Remove the louver covers A, B, and C from the hood 6. Now, the hood exhaust louver is free. REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven) 1.
- Page 30 R-1600 R-1601 R-1602 7. Remove one (1) screw holding the hood duct to the oven 16.Pull the wire leads from the oven lamp socket by pushing cavity front plate. the terminal hole of the oven lamp socket with the small 8.
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Page 31: Cooling Fan Motor Removal
R-1600 R-1601 R-1602 THERMAL CUT-OUT (CAVITY) REMOVAL 1. Disconnect the power supply cord and remove the oven 9. Now, the thermal cut-out (cavity) is free. from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal") NOTE: When the tab is broken or turned off, use the another 2. - Page 32 R-1600 R-1601 R-1602 2. Hold the center of the bracket which supports the shaft 6. Install the hood duct to the oven cavity with the one (1) of the fan motor on the flat table. screw. 3. Apply the screw lock tight into the hole (for shaft) of the 7.
- Page 33 R-1600 R-1601 R-1602 CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL 1. Disconnect the power supply cord. fixing plate. 2. Open the door and block it open. 16.Release the one (1) tab holding the LCD to the LCD 3. Remove one (1) screw holding the hood exhaust louver holder.
- Page 34 R-1600 R-1601 R-1602 DOOR SENSING SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT 1. Disconnect the power supply cord and remove the oven the latched position. First check upper position of latch from wall and remove outer case. (Refer to procedure of hook, pushing and pulling upper portion of door toward "Removal of Oven from Wall"...
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Page 35: Door Disassembly
R-1600 R-1601 R-1602 Note: The door on a microwave oven is designed to Hood Exhaust Louver act as an electronic seal preventing the leakage Upper Door Hige Pin of microwave energy from oven cavity during cook cycle. This function does not require that... -
Page 36: Pictorial Diagram
R-1600 R-1601 R-1602... -
Page 37: Power Unit Circuit
R-1600 R-1601 R-1602 2SB1238 R4 27 D1-4 R5 4.7k 11ES1 – – R2 560 1w 510 1/2w C100 MOTOR RUN CAPACITOR 7 /230v TURNTABLE TURNTABLE MOTOR MOTOR PKM22EPT BUZZER R6 3.3k R20 1k 1/2w HOOD LAMP HOOD LAMP C110 0.033 /250v... -
Page 38: Lsi Unit Circuit
R-1600 R-1601 R-1602 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 TEST OSC1 SEG20 OSC2 AVSS AN11 SEG35 AN10 4.7k C110 330p/50v 4.7k 330p/50v 330p/50v 4.7K (J17) (J16) 330p/50v 330p/50v 4.7K (J15) (J14) 330p/50v 270k 4.7K... -
Page 39: Indicator Circuit
R-1600 R-1601 R-1602 DEFROST TURNTABLE OFF COOK HELP SEG9 SEG35 SEG8 SEG36 SEG7 SEG37 SEG6 SEG38 SEG5 SEG39 SEG4 COM16 /50v SEG3 COM15 C129 SEG2 COM14 SEG1 COM13 SEG0 COM12 COM7 COM11 COM6 COM10 COM5 COM9 COM4 COM8 COM3 COM2... -
Page 40: Printed Wiring Board
R-1600 R-1601 R-1602 CN - B (J1) C100 Figure S-5. Printed Wiring Board... -
Page 41: Parts List
Outer case cabinet [R-1601] 2- 5 GCABUB086MRP0 Outer case cabinet [R-1602] 2- 6 TMAPCB052MRR0 Schematic diagram 2- 7 FANGKB009MRY0 Hood lamp glass assembly [R-1600] 2- 7 FANGKB010MRY0 Hood lamp glass assembly [R-1601] 2- 7 FANGKB011MRY0 Hood lamp glass assembly [R-1602] 2-7-1 LANGQB016MRP0... - Page 42 Transformer VRS1 RH-VZA032DRE0 Varistor (10G471K) 3- 2 FPNLCB256MRK0 Control panel sub. assembly [R-1601] 3- 2 FPNLCB257MRK0 Control panel sub, assembly [R-1600] 3- 2 FPNLCB258MRK0 Control panel sub, assembly [R-1602] 3- 2-1 FUNTKB206MRE0 Key unit [R-1601] 3- 2-1 FUNTKB207MRE0 Key unit [R-1600]...
- Page 43 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 44 R-1600 R-1601 R-1602 OVEN AND CABINET PARTS 1-14 4-13 4-19 4-10 4-12 4-11 1-12 1-15 1-16 1-13 1-17 4-17 6-10 4-18 4-24 4-20 4-23 6-16 6-12 4-22 4-25 4-20 1-10 1-11 4-14 1-10 4-16 7-11 6-13 7-10 4-15 6-14 1-13...
- Page 45 R-1600 R-1601 R-1602 CONTROL PANEL PARTS 3-2-2 3-2-3 3-2-1 4-21 DOOR PARTS 5-2-5 5-2-1 5-2-3 MISCELLANEOUS 5-2-2 5-2-4 6-1-1 6-1-4 6-15 6-1-5 6-1-2 6-1-6 6-11 6-1-7 6-1-3...
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Page 46: Packing And Accessories
RACK HOLDER SPADFB047MRE0 SPADFA020WRE0 INSTALL MATERIAL ASSEMBLY DOOR PAD 6-3 OPERATION MANUAL WALL TEMPLATE INSTALLATION INSTRUCTION 6-4 TOP TEMPLATE BOTTOM PAD SPADBB025MRE0 6-13 GREASE FILTER (x 2) ACCESSORY HOLDER SPADFB045MRE0 Non-replaceable items PACKING CASE SPAKCB233MRR10 [R-1600] SPAKCB233MRR9 [R-1601] SPAKCB233MRR11 [R-1602]... - Page 47 R-1600 R-1601 R-1602...
- Page 48 No part of this publication may be repro- duced, stored in retrieval systems, or trans- mitted in any form or by any means, elec- tronic, mechanical, photocopying, record- ing, or otherwise, without prior written per- mission of the publisher. '99 SHARP CORP. (4S2.530E) Printed in U.S.A...