Sharp R-1880LS Wartungshandbuch

1R-1880LS/LST Note: R-1880LST is the same as the R-1880LS, only the packing is different. It is shipped on pallets for Recreational Vehic

10R-1880LS/LST NOTE:Some one-touch cooking features as "More Time " are disabled after one minute when the oven is not used. These features

11R-1880LS/LST OPERATIONDESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation.OFF CONDITI

12R-1880LS/LST sends a signal to the LSI on the control unit de-energizing the relay (RY6) and opening the circuit to the damper motor.3. The coil o

13R-1880LS/LST The time of supplementary cooking is determined by experiment with each food category and inputted into the LSI.An example of how sens

14R-1880LS/LST detected vapors and initiated a sensor cooking cycle. This is because the operation of the convection fan would interfere with

15R-1880LS/LST Figure O-1. Oven Schematic - Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CLOCK APPEARS ON DISPLAY.SCHEMATICNOTE: CO

16R-1880LS/LST SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CONVECTION PAD TOUCHED.3. DESIRED TEMP. TOUCHED.4. START PAD TOUCHED.Figure O-3. Oven

17R-1880LS/LST DOOR OPEN MECHANISMThe door is opened by pushing the open button on the control panel, refer to the Figure D-1.When the open button is

18R-1880LS/LST The hood lamps are mounted at the hood lamp angle on the base cover. When the hood lamp button is pushed, the hood lamp relay (RY8) con

19R-1880LS/LST TROUBLESHOOTING GUIDE Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is con-nected.W

2R-1880LS/LST PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPO-SURE TO EXCESSIVE MICROWAVE ENERGY(a) Do not operate or a

20R-1880LS/LST MAGNETRONPOWER TRANSFORMERH.V. RECTIFIER HIGH VOLTAGE CAPACITORPRIMARY OR DOOR SENSING SWITCHPRIMARY INTERLOCK SYSTEMMONITOR SWITCHDAMP

21R-1880LS/LST HOOD FAN MOTORDAMPER MOTORCONVECTION HEATERCHECKING TEMPERATURECONTROL UNITKEY UNITRELAY (RY1)RELAY (RY2)RELAY (RY3)RELAY (RY4)RELAY (

22R-1880LS/LST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST A MAGNETRON ASSEMBLY TEST B POWER TRANSFORMER TEST1. Disconnect the power supply

23R-1880LS/LST C HIGH VOLTAGE RECTIFIER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3

24R-1880LS/LST PRIMARY INTERLOCK RELAY (RY2)1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. D

25R-1880LS/LST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST I BLOWN MONITOR FUSE1. Disconnect the power supply cord, and then remove outer ca

26R-1880LS/LST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST M HOOD FAN MOTOR TEST1. Disconnect the power supply cord, and then remove outer ca

27R-1880LS/LST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST P CHECKING TEMPERATURE IN THE CONVECTION MODE Q TOUCH CONTROL PANEL ASSEMBLY TES

28R-1880LS/LST 2. Control Unit. The following symptoms indicate a defective control unit. Before replacing the control unit, perform the Key unit

29R-1880LS/LST 1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Discharge high voltage capaci

3R-1880LS/LST NOTES:

30R-1880LS/LST pattern acts as a fuse. 1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Discha

31R-1880LS/LST PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING BOARD PWB IS OPENTo protect the electronic circuits, this model is

32R-1880LS/LST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST N NOISE FILTER TEST1. Disconnect the power supply cord, and then remove outer

33R-1880LS/LST TOUCH CONTROL PANEL ASSEMBLYOUTLINE OF TOUCH CONTROL PANEL3) Synchronizing Signal Circuit The power source synchronizing signal is av

34R-1880LS/LST DESCRIPTION OF LSILSI(IZA719DR)The I/O signals of the LSI(IZA719DR) are detailed in the following table.Pin No. Signal I/O Descripti

35R-1880LS/LST 18 P50 OUT Convection motor driving signal. To turn on and off shut-off relay(RY7). "L" level during CONVECTION; &qu

36R-1880LS/LST Output to control oscillation input of XIN.32 VSS IN Power source voltage:-5V. VC voltage of power source circuit input.3

37R-1880LS/LST while one of G2 line keys on key matrix is touched.56 P00 OUT Segment data signal. Signal similar to P55. Key strobe signal

38R-1880LS/LST SERVICING1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of the circuits. When handling t

39R-1880LS/LST SPECIAL SERVICING NOTEThere is couple of non-replaceable parts attached to the Turn Table & Fan motor. They are called “Spark Quen

4R-1880LS/LST MICROWAVE MEASUREMENT PROCEDURE (USA) A. Requirements:1) Microwave leakage limit (Power density limit): The power density of

40R-1880LS/LST severe, possibly fatal, electric shock.(Example)High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly,

41R-1880LS/LST 1. Disconnect the power supply cord and remove the oven from the wall and remove the outer case of the oven.2. Open the door block

42R-1880LS/LST 10. Now, the hood fan motor is free.11. Remove the hood exhaust duct from the oven cavity by lifting it up12. Screw the oven lamp off

43R-1880LS/LST Rear ViewSide ViewGapRotorBracketStatorGroove joint pliersCoilShaftAxisStatorThese are the areas that should be heldwith a pliersRotor

44R-1880LS/LST 1. Disconnect the power supply cord.2. Open the door and block it open.3. Remove the three (3) screws holding the base cover to th

45R-1880LS/LST 14. Remove the one (1) screw holding the key fixing plate to the control panel.15. Release the four (4) tabs holding the key fixing plat

46R-1880LS/LST 1. Disconnect power supply cord, remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wa

47R-1880LS/LST interrupt the circuit before the door can be opened.3. Monitor switch contacts close when door is opened.4. Re-install outer case an

48R-1880LS/LST 6. Re-install the door stopper to the door assembly.7. Re-install the sash left to the oven cavity front face plate.8. Re-install t

49R-1880LS/LST Figure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V.RECTIFIERHIGH VOLTAGE COMPONENTSMAGNETRONPOWER TRANSFORMERFFAPower Supplycord 12

5R-1880LS/LST MICROWAVE MEASUREMENT PROCEDURE (CANADA)After adjustment of the door switches are completed individually or collectively, switch test a

50R-1880LS/LST 64 512364 5123ABCDEFGHABCDEFGHFigure S-2. Touch Control Panel Circuit

51R-1880LS/LST 64 512364 5123ABCDEFGHABCDEFGHFigure S-3. Printed Wiring Board

52R-1880LS/LST PARTS LIST REF. NO. PART NO. DESCRIPTION Q'TY CODE ELECTRIC PARTS1- 1 FH-DZB017MRY0 High voltage rectier

53R-1880LS/LST REF. NO. PART NO. DESCRIPTION Q'TY CODE OVEN PARTS4- 1 FFTA-B004MRK0 Exhaust damper assembly 1 AG

54R-1880LS/LST REF. NO. PART NO. DESCRIPTION Q'TY MISCELLANEOUS6- 1 CFZK-B131MRK0 Installation material assembly 1 AM6-1-1

55R-1880LS/LST OVEN AND CABINET PARTS64 512364 5123ABCDEFGHABCDEFGH4-167-117-77-37-207-207-77-147-157-217-47-147-124-114-101-184-187-234-444-401-217-

56R-1880LS/LST 64 512364 5123ABCDEFGHABCDEFGHMISCELLANEOUS6-16-1-16-1-26-1-36-1-56-1-66-1-46-66-76-8 6-96-103-13-23-57-73-5 3-3 3-6 3-46-15 3-8 3-7

57R-1880LS/LST PACKING AND ACCESSORIESTRAY HOLDERDAMPER HOLDERGREASE FILTER (x 2)2-1INSTALL MATERIAL ASSEMBLY6-16-2LOW RACK 6-96-3OPERATION MANUALWAL

58R-1880LS/LST NOTES

59R-1880LS/LST NOTES

6R-1880LS/LST WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of producing very high voltage and current, contact with following

60R-1880LS/LST 2006 SHARP CORP. (5M2.00E) Printed in U.S.ACOPYRIGHT © 2006 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be

7R-1880LS/LST PRODUCT DESCRIPTIONGENERAL INFORMATIONOPERATIONTROUBLESHOOTING GUIDE AND TEST PROCEDURETOUCH CONTROL PANEL COMPONENT REPLACEMENT AND AD

8R-1880LS/LST ITEM DESCRIPTIONPower Requirements 120 Volts / 13.2 Amperes (Microwave), 13.2 Amperes (Convection) - [UL Rating] 116 Volt

9R-1880LS/LST Electrical RequirementsThe oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE