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R-20A1(S)VN

4 – 1

R218L(W)

CHAPTER 4.

APPEARANCE VIEW

[1] OVEN

1. Ventilation openings

2. Oven lamp

3. Door hinges

4. Door safety latches

5. See through door

6. Door seals sealing surfaces

7. Coupling

8. Control panel

9. Waveguide cover

10. Power supply cord

11. Turntable

12. Roller stay

13. Outer case cabinet

14. Door open button

[2] TOUCH CONTROL PANEL

11

12

1

10

13

2

7

3

8

14

4

4

5

6

9

VARIABLE COOKING CONTROL
There are five power levels. The approxi-
mate percentage of microwave power for
each setting is:

%

0

1

H

G

I

H
MED HIGH

70%

%

0

5

D

E

M
MED LOW (DEFROST)

30%

%

0

1

W

O

L

MEAT DEFROST

TIMER (0-30minutes)
Turn to set cooking time or weight of de-
frost food.

0

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Содержание R-20A1SVN

Страница 1: ...HAPTER 10 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE CHAPTER 11 MICROWAVE MEASUREMENT CHAPTER 12 CIRCUIT DIAGRAMS Parts List SERVICE MANUAL R 20A1 S VN CONTENTS SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice S8313R20APVNS MICROWAVE OVEN R 20A1 S VN R 21A1 S VN MODELS In the interest of user safety the...

Страница 2: ...R TEST 8 2 4 Procedure D HIGH VOLTAGE CAPACI TOR TEST 8 2 5 Procedure E SWITCH TEST 8 2 6 Procedure F TEMPERATURE FUSE TEST 8 3 7 Procedure G MOTOR WINDING TEST 8 3 8 Procedure H FUSE T6 3A 8 3 9 Procedure I HIGH VOLTAGE FUSE TEST 8 3 10 Procedure J TIMER MOTOR TEST 8 3 CHAPTER 10 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 1 BEFORE OPERATING 10 1 2 OUTER CASE REMOVAL 10 1 3 HIGH VOLTAGE TRANSF...

Страница 3: ...d Never look into an open wave guide or antenna while the device is energized 3 WARNING Never operate the oven until the following points are ensured A The door is tightly closed B The door brackets and hinges are not defective C The door packing is not damaged D The door is not deformed or warped E There is not any other visible damage with the oven Servicing and repair work must be carried out o...

Страница 4: ...nsformer Ensure that these leads remain iso lated from other components and the oven chassis Use insulation tape if necessary When the testing is completed carry out 3D checks and reconnect the leads to the primary of the power transformer REMEMBER TO CHECK 4R 1 Reconnect all leads removed from components during testing 2 Replace the outer case cabinet 3 Reconnect the supply 4 Run the oven Check a...

Страница 5: ... mm Height 275 mm including foot Cooking Cavity Dimensions Width 319 mm NOTE Internal capacity is calculated by measuring maximum width depth and height Height 211 mm Actual capacity for holding food is less Depth 336 mm Turntable diameter 272 mm Control Complement Timer 0 30 minutes Microwave Power for Variable Cooking Repetition Rate HIGH Full power throughout the cooking time MEDIUM HIGH approx...

Страница 6: ...ver 10 Power supply cord 11 Turntable 12 Roller stay 13 Outer case cabinet 14 Door open button 2 TOUCH CONTROL PANEL 11 12 1 10 13 2 7 3 8 14 4 4 5 6 9 VARIABLE COOKING CONTROL There are five power levels The approxi mate percentage of microwave power for each setting is 0 1 H G I H MED HIGH 70 0 5 D E M MED LOW DEFROST 30 0 1 W O L MEAT DEFROST TIMER 0 30minutes Turn to set cooking time or weight...

Страница 7: ...ch and latch switch are made open The timer stops to indicate how much cooking time remains 7 MONITOR SWITCH CIRCUIT The monitor switch is mechanically controlled by oven door and monitors the operation of the monitored latch switch and the relay RY1 1 When the oven door is opened during or after the cycle of a cooking program the monitored latch switch and latch switch COM NC of the monitor switc...

Страница 8: ... contacts of the relay RY1 and the timer switch remain closed with the oven door open and when the con tacts COM NC of the monitor switch are close 2 If the wire harness or electrical components are short circuited the 5 HIGH VOLTAGE FUSE netron is shorted 6 TEMPERATURE FUSE 150C OVEN The temperature fuse located on the top of the oven cavity is designed by either error in cook time or defect in t...

Страница 9: ... W B POWER SUPPLY CORD SHORTED WIRE HARNESS OPENED WIRE HARNESS OVEN LAMP WALL OUTLET MISADJUSTMENT SWITCH HOME FUSE OR BREAKER BLOCKED COOLING FAN BLOCKED VENTILATION H V FUSE OFF CONDITION PROBLEM CONDITION POSSIBLE CAUSE AND DEFECTIVE PARTS TEST PROCEDURE ON CONDITION A B C CK D E E I J F E M H G G J L RE CK CK RE CK CK CK CK CK Home fuse blows when pow ersupply cord is plugged into wall outlet...

Страница 10: ...t temperature is 5 C 5 Select stirring devices and measuring instruments in order to minimize addition or removal of heat 6 The graduation of the thermometer must be scaled by 0 1 C at minimum and an accurate thermometer 7 The water load must be 1000 5 g NOTE Measuring method 1 1 Measure the initial temperature of the water before the water is added to the vessel Example The initial temperature T1...

Страница 11: ...NG INSTRUMENT MUST HAVE A VOLTAGE AT LEAST 6 VOLTS BECAUSE OTHERWISE AN INFINITE RESISTANCE MIGHT BE SHOWN IN BOTH DIRECTION 4 Procedure D HIGH VOLTAGE CAPACITOR TEST CARRY OUT 3D CHECKS 1 Isolate the high voltage capacitor from the circuit 2 Continuity check must be carried out with measuring instrument which is set to the highest resistance range 3 A normal capacitor shows continuity for a short...

Страница 12: ...ts or wire harness Check them and replace the defective parts or repair the wire harness CARRY OUT 4R CHECKS CAUTION ONLY REPLACE FUSE T6 3A WITH THE CORRECT VALUE REPLACEMENT 9 Procedure I HIGH VOLTAGE FUSE TEST CARRY OUT 3D CHECKS Check them and replace the defective parts and the high voltage fuse CARRY OUT 4R CHECKS CAUTION ONLY REPLACE HIGH VOLTAGE FUSE WITH THE CORRECT VALUE REPLACEMENT 10 P...

Страница 13: ...inding terminals are described at following table and check that a reading of resistance described at following table is indicated If this reading is not obtained then the timer is probably defective and should be replaced CARRY OUT 4R CHECKS Disconnecting and checking terminals Resistance of motor winding 1 and 2 approximately 22 2 k ohms ...

Страница 14: ...e power supply cord 2 Open the door and block it open 3 Discharge the high voltage capacitor and wait for 60 seconds 2 Don t let the wire leads touch to the following parts 1 High voltage parts Magnetron High voltage transformer High voltage capacitor y 2 Hot parts Oven lamp Magnetron High voltage transformer and Oven cavity 3 Sharp edge plate 4 Movable parts to prevent a fault Fan blade Fan motor...

Страница 15: ...LACE ONLY HIGH VOLTAGE RECTIFIER WHEN REPLACING IT REPLACE HIGH VOLTAGE REC TIFIER ASSEMBLY 5 MAGNETRON REMOVAL 1 REMOVAL 1 CARRY OUT 3D CHECKS 2 Disconnect the wire leads from the magnetron 3 Remove the two 2 screws holding the air duct to the oven cavity 4 Release the air duct from the oven cavity 5 Carefully remove the four 4 screws holding the magnetron to the 6 Lift up magnetron with care so ...

Страница 16: ...T ENTER THE GAP BETWEEN THE ROTOR AND THE STATOR OF THE FAN MOTOR BECAUSE THE ROTOR IS EASY TO BE SHAVEN BY PLIERS AND METAL PIECES MAY BE PRO DUCED DO NOT TOUCH THE PLIERS TO THE COIL OF THE FAN MOTOR BECAUSE THE COIL MAY BE CUT OR INJURED DO NOT DISFIGURE THE BRACKET BY TOUCHING WITH THE PLIERS 6 Remove the fan blade from the shaft of the fan motor by pulling and rotating the fan blade with your...

Страница 17: ...aining tabs holding switch in place 7 Switch is now free 2 REINSTALL 1 Re install each switch in its place The latch monitor switches are in the lower position and the monitored latch switch is in the upper position 2 Re connect wire leads to each switch Refer to pictorial diagram 4 Install the switch lever to the oven cavity 5 Make sure that the monitor switch is operating properly and check cont...

Страница 18: ...oor frame and latch head 14 Now latch head and latch spring are free 15 Remove door screen from door frame 16 Now door screen is free 2 REINSTALLATION 1 Re install door screen to door frame 2 Re install latch spring to the head Re install latch spring to the door frame Re install latch head to the door frame 5 Catch two 2 pins of door panel on two 2 hole of upper and lower oven hinges 6 Re install...

Страница 19: ...0A1 S VN 10 6 Figure C 6 Door Replacement 4 SEALER FILM shown in Fig C 7 Pin Pin Upper Oven Hinge Lower Oven Hinge Lower Oven Hinge Choke Cover Slit Choke Door Panel Sealer film Backing film Adhesive tape ...

Страница 20: ...Place the oven tray into the oven cavity 3 Place the load of 275 15ml of water initially at 20 5 C in the centre of the oven tray The water container should be a low form of 600 ml beaker with inside diameter of approx 8 5cm and made of an electrically non conductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also t...

Страница 21: ...GRAMS 1 Oven Schematic Figure O 1 Oven Schematic OFF Condition Figure O 2 Oven Schematic ON Condition SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 COOKING TIME PROGRAMMED 230 240V 50Hz 230 240V 50Hz ...

Страница 22: ...GRY WHT GRY BLU COM N O ORG BLK HIGH VOLTAGE CAPACITOR H V RECTIFIER HIGH VOLTAGE COMPONENTS MAGNETRON TURNTABLE MOTOR HIGH VOLTAGE TRANSFORMER GRY RED RED WHT WHT ORG FUSE LIVE NEUTRAL FAN MOTOR GRY BLU ORG OVEN LAMP ORG BRN BLU L N WHT RED Power Supply Cord Oven Cavity Back Plate Screw FUSE HOLDER ASSEMBLY G Y WHT ORG TIMER MOTOR HIGH VOLTAGE FUSE 3 4 2 1 GRY GRY RED ORG ORG WHT BLK WHT ...

Страница 23: ...O 3 PART NO 4 DESCRIPTION Parts marked may cause undue microwave exposure Parts marked are used in voltage more than 250V 1 OVEN PARTS 2 DOOR AND CONTROL PANEL PARTS INDEX SPAKCF427WREZ R 20A1 S VN SPAKCF427WREZ R 21A1 S VN 6 1 TURNTABLE TRAY 6 5 INSTRUCTION BOOK 6 2 TURNRTABLE SUPPORT INTO THE OVEN CAVITY Not replaceable items TRAY PAD ASSY CPADBA287WRKZ PACKING CASE MICROWAVE OVEN TOP PAD ASSEMB...

Страница 24: ... 7 7 1 6 1 3 7 1 2 2 4 1 4 10 4 2 7 11 7 9 7 9 7 11 7 7 4 3 6 1 6 2 7 8 7 6 7 8 4 9 1 7 7 1 4 5 4 11 4 8 7 8 1 13 6 4 7 8 7 6 4 4 4 13 4 12 4 7 7 7 7 10 7 1 1 5 1 14 1 1 4 14 1 2 7 3 7 4 4 16 7 6 7 2 1 1 1 9 1 4 2 3 2 3 1 11 7 1 4 6 1 10 1 12 4 17 7 8 7 8 4 15 7 8 ...

Страница 25: ...e motor Interchangable AN 1 10 QFS TA014WRE0 Temperature fuse 150C Oven AG 1 11 RTRN A806WRZZ High voltage transformer BF 1 11 RTRN A759WRZZ High voltage transformer Interchangable BH 1 11 RTRN A817WRZZ High voltage transformer Interchangable BF 1 12 FPWBFA422WRKZ Fuse holder assembly AU 1 13 QFS CA027WRZZ Fuse T6 3A AG ELECTRIC PARTS 1 13 QFS CA027WRZZ Fuse T6 3A AG 1 14 QFS IA016WRZZ High voltag...

Страница 26: ...R 20A1 S VN 2 DOOR AND CONTROL PANEL PARTS 3 3 3 6 3 2 3 5 3 4 3 8 3 1 6 6 6 5 Actual wire harness may be different than illustration 5 2 5 5 5 3 5 4 5 6 5 7 5 8 5 1 6 7 ...

Страница 27: ... AF 3 8 XEPS730P08XS0 Screw 3mm x 10mm AB 5 1 FDORFA397WRTZ Door panel assembly BB 5 2 GWAKPB231WRTZ Door frame AX 5 3 HPNL A821WRRZ Door screen AR 5 4 LSTPPA205WRFZ Latch head AF 5 5 MSPRTA187WRE0 Spring AC 5 6 PSHEPA782WREZ Sealer film AG 5 7 GCOVHA424WRFZ Choke cover AK 5 8 PCUSUA622WRPZ Cushion AG 6 5 TINSZA285WRRZ Instruction book AE 6 6 FW VZC307WREZ Main wire harness AR 6 7 TCAUAA425WRRZ Ad...

Страница 28: ...ON ALL RIGHTS RESERVED No part of this publication may be reproduced stored in retrieval systems or transmitted in anyform or by any means electronic mechanical photocopying re cording or other wise without prior written permission of the publisher ...

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