Acer R-1200 Wartungshandbuch

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39
R-1200
R-1201
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
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ...................INSIDE FRONT COVER
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 ..........................................................................................................................................................6
TROUBLESHOOTING GUIDE ..............................................................................................................................9
TEST PROCEDURE ............................................................................................................................................11
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................18
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................23
PICTORIAL DIAGRAM ........................................................................................................................................30
POWER UNIT CIRCUIT ...................................................................................................................................... 31
LSI UNIT CIRCUIT ............................................................................................................................................... 32
PRINTED WIRING BOARD .................................................................................................................................33
PARTS LIST ........................................................................................................................................................ 34
PACKING AND ACCESSORIES .........................................................................................................................38
SY130R1200X//
R-1200
R-1201
OVER THE COUNTER
MICROWAVE OVEN
MODELS
SERVICE MANUAL
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
Seitenansicht 0
1 2 3 4 5 6 ... 39 40

Inhaltsverzeichnis

Seite 1 - SERVICE MANUAL

39R-1200R-1201In the interest of user-safety the oven should be restored to itsoriginal condition and only parts identical to those specified shouldbe

Seite 2 - BEFORE SERVICING

8R-1200R-1201DESCRIPTION AND FUNCTION OF COMPONENTS3. If the door is opened, and the secondary interlock relay(RY2) and primary interlock switch conta

Seite 3 - WARNING TO SERVICE PERSONNEL

9R-1200R-1201TROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.When t

Seite 4

10R-1200R-1201CK = Check / RE = ReplacePOSSIBLE CASE AND DEFECTIVE PARTSPROBLEMTEST PROCEDURECONDITIONOFFCONDITIONIDLECONDITIONMICROWAVECOOKINGCONDITI

Seite 5 - SERVICE MANUAL

11R-1200R-1201B POWER TRANSFORMER TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. O

Seite 6 - GENERAL INFORMATION

12R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block i

Seite 7 - OVEN DIAGRAM

13R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block i

Seite 8 - OPERATION

14R-1200R-1201I BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2.

Seite 9

15R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTThe following symptoms indicate a defective key unit.a) When touching the pads, a certain pa

Seite 10

16R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case. Refer to procedure of "

Seite 11 - TROUBLESHOOTING GUIDE

17R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTMenu 1ST STAGE 2ND STAGESteaks/Chops LEVEL TIME LEVEL TIME0.5lbs 60% 57sec. 40% 17sec.(8) If

Seite 12 - TEST PROCEDURE

40R-1200R-1201PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPO-SURE TO EXCESSIVE MICROWAVE ENERGY(a) Do not operate or all

Seite 13 - TEST PROCEDURES

18R-1200R-1201TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST8) Disconnect the power supply cord.9) Open the door and block it open.10) To discharge high

Seite 14

19R-1200R-1201DESCRIPTION OF LSILSIThe I/O signal of the LSI is detailed in the following table.Pin No. Signal I/O Description1-2 VL2-VL1 IN Power sou

Seite 15

20R-1200R-1201Pin No. Signal I/O Description30 XIN IN Internal clock oscillation frequency input setting.The internal clock frequency is set by insert

Seite 16

21R-1200R-1201Pin No. Signal I/O Description73/74 VCC/VREF IN Connected to GND.75 AVSS IN Connected to VC.76 COM3 OUT Terminal not used.77 COM2 OUTCom

Seite 17

22R-1200R-12011. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling these parts,

Seite 18

23R-1200R-1201Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts mayresult in severe,

Seite 19

24R-1200R-12011. Disconnect the power supply cord , remove the ovenfrom wall and remove outer case (Refer to procedure of"Removal of Oven from Wa

Seite 20 - TOUCH CONTROL PANEL ASSEMBLY

25R-1200R-12016. Disconnect high voltage wire A from capacitor.7. Remove the fan duct assembly from the oven cavity,referring to the procedure of &quo

Seite 21 - DESCRIPTION OF LSI

26R-1200R-12011. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait for 60seconds.4.

Seite 22 - SEG21-SEG0

27R-1200R-12011. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait for 60seconds.4.

Seite 23

1R-1200R-1201WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing

Seite 24 - SERVICING

28R-1200R-1201DOOR ASSEMBLY REMOVAL1. Disconnect the power supply cord and remove the ovenfrom wall and remove outer case. (Refer to procedure of"

Seite 25 - WARNING FOR WIRING

29R-1200R-12011. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait for 60seconds.4.

Seite 26 - POWER TRANSFORMER REMOVAL

30R-1200R-1201645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGERECTIFIERHIGH VOLTAGECAPACITORHIGH VOLTAGEWIRE AHIGH VOLTAGE COMPON

Seite 27 - COOLING FAN MOTOR REMOVAL

31R-1200R-1201645123645123ABCDEFGHABCDEFGHFigure S-2. Power Unit CircuitN.OCOMN.OCOMB-1C 1C 2C 3C 4C 6C 5C 9+–+–B-2T1AC(N)GNDVAINTBUZZERMICROOVEN LAMP

Seite 28 - POSITIVE LOCK

32R-1200R-1201Figure S-3. LSI Unit Circuit645123645123ABCDEFGHABCDEFGHC 1C 2C 5G11G12 G 9G 8KEY UNITG 7 G 6 G 5 G 4 G 3 G 2 G 1G10C 3C 9C1 0.1µ/50vC60

Seite 29

33R-1200R-1201645123645123ABCDEFGHABCDEFGHFigure S-4. Printed Wiring BoardCN - FDIPR53R52(J2)21R50RY1 RY2D22CN - A(J1)D3D4T1S115358PD1D2QKITPB036MRE0Z

Seite 30 - DOOR REPLACEMENT

34R-1200R-1201PARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than 250V. "§

Seite 31 - DOOR DISASSEMBLY

35R-1200R-1201REF. NO. PART NO. § DESCRIPTION Q'TY CODE∆∆∆∆∆∆4- 8 PPACGB014MRF0 M Turntable motor packing 1 AA4- 9 PHOK-B018MRF0 M Latch hook 1

Seite 32 - HIGH VOLTAGE COMPONENTS

36R-1200R-1201645123645123ABCDEFGHABCDEFGH6-66-76-56-16-1-16-1-26-1-36-1-76-26-1-56-1-66-1-45-2-25-2-35-2-15-2-55-2-135-2-75-2-95-2-85-2-105-2-115-25-

Seite 33

37R-1200R-1201645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS4-102-44-177-61-101-96-94-176-87-57-57-57-57-1A6-107-24-134-154-87-82-12-61-137-27-21-

Seite 34 - COOK DEFROST SENSOR AUTO %

2R-1200R-1201MICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiation

Seite 35 - QKITPB036MRE0

38R-1200R-1201COPYRIGHT © 2001 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced, storedin retrieval systems, or t

Seite 36 - PARTS LIST

3R-1200R-1201SHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALOVER THE COUNTERMICROWAVE OVENR-1200/ R-1201FOREWORDT

Seite 37

4R-1200R-1201ITEM DESCRIPTIONPower Requirements 120 Volts / 14.1 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1100 watts (IEC TEST PROCEDU

Seite 38

5R-1200R-1201Electrical RequirementsThe oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THEGROUNDING PIN

Seite 39

6R-1200R-1201OPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITIONClosing

Seite 40 - Non-replaceable items

7R-1200R-1201SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME PROGRAMMED.3. VARIABLE COOKING CONTROL "HIGH".4. "START&quo

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