Instruction/ maintenance manual of the product R-1870 Sharp
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R-1870 R-1871 S91M173R1870E OVER THE RANGE MICROWAVE OVEN MODELS R-1870/R-1871 This is a supplemental Service Manual for Models R-1870/R1871. This model is quite similar to Base Model R-1850 (S/M# S6804R1850X//).
R-1870 R-1871 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.
1 R-1870 R-1871 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.
2 R-1870 R-1871 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 exce.
3 R-1870 R-1871 SERVICE MANUAL MICROWAVE OVEN R-1870/R1871 FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-1870 and R-1871. The models R-1870 and R-1871 are quite similar to base model R-1850 (Ref.
4 R-1870 R-1871 ITEM DESCRIPTION Power Requirements 120 Volts / 13.2 Amperes (Microwave), 13.2 Amperes (Convection) 60 Hertz Single phase, 3 wire grounded Power Output 850 watts (IEC-705 TEST PROCEDUR.
5 R-1870 R-1871 NOTE: Some one-touch cooking features as "MINUTE PLUS" are disabled af- ter one minute when the oven is not used. These features are automati- cally enabled when the door is opened and closed or the STOP/ CLEAR pad is pressed.
6 R-1870 R-1871 OPERATION 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 secondary interlock switch. (In this condition, the monitor switch contacts are opened.
7 R-1870 R-1871 Figure O-1. Oven Schematic - Off Condition SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CLOCK APPEARS ON DISPLAY. SCHEMATIC NOTE: CONDITION OF OVEN 1.
8 R-1870 R-1871 SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CONVECTION PAD TOUCHED. 3. DESIRED TEMP. TOUCHED. 4. START PAD TOUCHED. Figure O-3. Oven Schematic - Convection Cooking Condition (CONVEC, PREHEAT, BROIL, SLOW COOK) SCHEMATIC NOTE: CONDITION OF OVEN 1.
9 R-1870 R-1871 PROCEDURE LETTER COMPONENT TEST G12 CUSTOM HELP KITCHEN TIMER POWER LEVEL KEEP WARM TURNTABLE ON / OFF CONVEC BROIL FAN LIGHT PREHEAT CLOCK SENSOR REHEAT SLOW COOK LOW MIX BAKE 1 100 F.
10 R-1870 R-1871 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 CAPACITOR H.V. RECTIFIER HIGH VOLTAGE COMPONENTS MAGNETRON POWER TRANSFORMER F FA Power Supply cord 120V 60Hz GRN BLK BLK 1 2 3 WHT GRN BLK HOOD FAN THERMAL CUT-OUT CONVECTION MOTOR HEATING ELEMENT THERMISTOR TEMPERATURE FUSE (MG.
11 R-1870 R-1871 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. Touch Control Panel Circuit + – + – + – + – A5 A1 A3 B1 B3 B5 B7 C1 C3 C9 C7 C5 F3 G12 G11 G10 G 9 G 8 G 1 G 2 G 3 G 4 G 5 G 6 G 7 F2 F1 E6 E5 Q20 KRA101M Q90 KRA101M VRS1 C1 0.
12 R-1870 R-1871 PARTS LIST Note: The parts marked “ ∆ ∆ ∆ ∆ ∆ ” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V.
13 R-1870 R-1871 REF. NO. PART NO. § DESCRIPTION Q'TY CODE D1-4 VHD11ES1///-1 J Diode (11ES1) 4 A B D20-32 VHD1SS270A/-1 J Diode (1SS270A) 1 3 AA D65 VHD1SS270A/-1 J Diode (1SS270A) 1 A A D70-76.
14 R-1870 R-1871 REF. NO. PART NO. § DESCRIPTION Q'TY CODE 4-14 PHOK-B013MRF0 M Latch hook 1 A G 4-15 FANGTB003MRY0 M Unit mounting plate 1 A V 4-16 PFPF-B002MRE0 M Heat protect L 1 AK 4-17 PPIP.
15 R-1870 R-1871 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 authrized SHARP parts Distributor for your area.
16 R-1870 R-1871 OVEN AND CABINET PARTS 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 4-15 7-11 7-7 7-3 7-20 7-20 7-7 7-17 7-17 7-14 7-15 7-21 7-4 7-14 7-12 4-10 4-9 1-18 4-17 7-23 4-43 4-39 1.
17 R-1870 R-1871 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 CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS 5-2 4-34 5-3 5-8 5-5 5-4 5-6 5-1 5-9 5 5-9 5-7 3-2 3-3 3-4 7-7 3-4 3-1 3-2-2 3-2-3 3.
18 R-1870 R-1871 PACKING AND ACCESSORIES 2-1 4-3 TURNTABLE TRAY TOP PAD BOTTOM PAD PACKING CASE ACCESSORY PACK WRAP COVER Non-replaceable items DOOR PROTECTOR GREASE FILTER (x 2) INSTALL MATERIAL ASSE.
19 R-1870 R-1871 Notes.
20 R-1870 R-1871 Notes.
21 R-1870 R-1871 Notes.
22 R-1870 R-1871 '01 SHARP CORP. (9M2.60E) Printed in U.S.A COPYRIGHT © 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems,.
An important point after buying a device Sharp R-1870 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sharp R-1870 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sharp R-1870 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sharp R-1870 you will learn all the available features of the product, as well as information on its operation. The information that you get Sharp R-1870 will certainly help you make a decision on the purchase.
If you already are a holder of Sharp R-1870, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sharp R-1870.
However, one of the most important roles played by the user manual is to help in solving problems with Sharp R-1870. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sharp R-1870 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
