Sharp CAROUSEL R-1405 Manual de Serviço Página 1

1R-1405R-1406In the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified should be

8R-1405R-1406VENTILATION METHODS HOT AIR EXHAUST1. VERTICAL VENTINGFor this venting method, hot air rising from the conventionalrange below is drawn i

9R-1405R-1406SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME PROGRAMMED.3. VARIABLE COOKING CONTROL "HIGH".4. "START&quo

10R-1405R-1406DESCRIPTION AND FUNCTION OF COMPONENTS3. If the door is opened, and the secondary interlock relay(RY2) and primary interlock switch cont

11R-1405R-1406TROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.When

12R-1405R-1406CK = Check / RE = ReplacePOSSIBLE CASE AND DEFECTIVE PARTSPROBLEMTEST PROCEDURECONDITIONOFFCONDITIONIDLECONDITIONMICROWAVECOOKINGCONDITI

13R-1405R-1406B POWER TRANSFORMER TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. O

14R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block i

15R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block i

16R-1405R-1406I BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2.

17R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTResistance between;BLU (1) AND YLW (4) = 0Ω (Shorted)BLK (2) AND YLW (4) = 60ΩBLU (1) AND BL

2R-1405R-1406PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPO-SURE TO EXCESSIVE MICROWAVE ENERGY(a) Do not operate or allo

18R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTL TOUCH CONTROL PANEL ASSEMBLY TESTThe touch control panel consists of circuits including se

19R-1405R-1406When testing is completed,1) Disconnect the power supply cord.2) Open the door and block it open.3) To discharge high voltage capacitor,

20R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST7. After that procedure, re-connect the power supply cord.8. Check voltage between normal op

21R-1405R-1406TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTSTEPS OCCURRENCE CAUSE OR CORRECTION1 Only pattern at "a" is broken. *Insert jumpe

22R-1405R-1406DESCRIPTION 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

23R-1405R-14067 AN3 OUT Back light circuit (Light emitting diodes) driving signal.8 AN2 INTo input signal which communicates the door open/close infor

24R-1405R-140634 P26 OUT Key strobe signal.Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while oneof G7 line keys o

25R-1405R-14061. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling these parts,

26R-1405R-1406Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts mayresult in severe,

27R-1405R-1406REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven)1. Disconnect the power supply cord, and uncoil the powersupply co

1R-1405R-1406WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing

28R-1405R-14064. Disconnect the 6-pin connector of the hood fan motorfrom the main wire harness located at the right edge ofthe oven cavity top plate

29R-1405R-14061. Disconnect the power supply cord, remove the ovenfrom wall and remove outer case (Refer to procedure of"Removal of Oven from Wal

30R-1405R-14061. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait for 60seconds.4.

31R-1405R-140613.Remove the two (2) screws holding the LCD holder tothe key fixing plate.14.Remove two (2) screws holding the power unit to the keyfix

32R-1405R-1406After adjustment, check the following.1. In and out play of door remains less than 0.5mm when inthe latched position. First check upper

33R-1405R-14061. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait for 60seconds.4.

34R-1405R-1406645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGERECTIFIERHIGH VOLTAGECAPACITORHIGH VOLTAGEWIRE AHIGH VOLTAGE COMPON

35R-1405R-1406645123645123ABCDEFGHABCDEFGHFigure S-2. Power Unit CircuitN.OC 1C 7C 3C 5C12C 4C 9C 2C 8C 6C13C14E 2E 1C11C10N.OCOMCOMB 3B 1A 5A 3A 1+–+

36R-1405R-1406645123645123ABCDEFGHABCDEFGHC 5C 1C 7C 2C 9C 8C 3C 6C 4C12C11C14G11G12 G 9G 8KEY UNITG 7 G 6 G 5 G 4 G 3 G 2 G 1G10+–C10C13C10 47µ/16vC1

37R-1405R-1406645123645123ABCDEFGHABCDEFGHFigure S-4. Printed Wiring Board0FCSM27A 94V 0MBMR350RBFBDIPLOT NO.QKITPB035MRE0RY1VRS1R30T1S8513PC100D26D2

2R-1405R-1406MICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiation

38R-1405R-1406PARTS LISTNote: The parts marked “∆∆∆∆∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than 250V. &qu

39R-1405R-1406REF. NO. PART NO. § DESCRIPTION Q'TY CODE3- 2-2 JBTN-B141MRF0 M Open button [R-1406] 1 AE3- 2-3 HPNLCB172MRF0 M Control panel frame

40R-1405R-1406HOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MODEL NUMBER

41R-1405R-1406645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS6-1-54-102-64-177-61-106-74-184-172-26-67-11-147-57-57-57-57-37-34-132-44-74-154-87-96

42R-1405R-1406645123645123ABCDEFGHABCDEFGH3-2-13-2-23-2-33-1-13-2-43-23-33-33-13-1-23-37-3Actual wire harness may be different from illustration.6-96-

43R-1405R-1406NOTES

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45R-1405R-1406NOTES

46R-1405R-1406COPYRIGHT © 2002 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced, storedin retrieval systems, or t

3R-1405R-1406SHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALOVER THE RANGEMICROWAVE OVENR-1405/ R-1406FOREWORDThi

4R-1405R-1406ITEM DESCRIPTIONPower Requirements 120 Volts / 13.5 Amperes60 HertzSingle phase, 3 wire groundedPower Output 950 watts (IEC TEST PROCEDUR

5R-1405R-1406Electrical RequirementsThe oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THEGROUNDING PIN

6R-1405R-1406NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the oven is notused. These f

7R-1405R-1406OPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITIONClosing