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R - 5 1 9 C K
R - 5 3 0 C K
R -530 CW

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. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. VARIABLE COOKING CONTROL "HIGH".
4. "START" PAD TOUCHED.

Figure O-2. Oven Schematic-Cooking Condition

NOTE:

Indicates components with potential above 250 V.

120V AC
60 Hz

OVEN
LAMP

TURN-
TABLE
MOTOR

FAN
MOTOR

MONITOR
SWITCH

H.V. RECTIFIER

MAGNETRON

SECONDARY
INTERLOCK
SWITCH

TTM

MONITOR
FUSE 20A

CAVITY
TEMP.
FUSE

MAGNETRON
TEMP.
FUSE

COM.

N.O.

N.C.

N.O.

DOOR
SENSING
SWITCH

(RY-1)

(RY-2)

CONTROL UNIT

PRIMARY
INTERLOCK
RELAY

GRN

POWER
TRANSFORMER

CAPACITOR 1.0

AC 2300V

AH SENSOR

120V AC
60 Hz

OVEN
LAMP

TURN-
TABLE
MOTOR

FAN
MOTOR

MONITOR
SWITCH

H.V. RECTIFIER

MAGNETRON

SECONDARY
INTERLOCK
SWITCH

TTM

CAVITY
TEMP.
FUSE

COM.

N.O.

N.C.

N.O.

DOOR
SENSING
SWITCH

(RY-1)

(RY-2)

CONTROL UNIT

PRIMARY
INTERLOCK
RELAY

GRN

POWER
TRANSFORMER

CAPACITOR 1.0

AC 2300V

MONITOR
FUSE 20A

MAGNETRON
TEMP.
FUSE

Содержание R-519CK

Страница 1: ...T COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATIONS 4 GENERAL INFORMATION 4 OPERATION 6 TROUBLESHOOTING GUIDE 10 TEST PROCEDURE 12 TOUCH CONTROL PANEL 21 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 29 PICTORIAL DIAGRAM 35 POWER UNIT CIRCUIT 36 LSI UNIT CIRCUIT 37 PRINTED WIRING BOARD 40 PARTS LIST 41 PACKING AND ACCESSORIES 45 S...

Страница 2: ... with the Federal Performance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an operative unit perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual If microwave emissions level is in excess of the specified limit contact SHARP ELECTRONICS CORPORATION immediately 1 800 237 4277 If the...

Страница 3: ...tage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that the leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power supply cord When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 ...

Страница 4: ...er of the oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive 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 to insure that any leakage is measured accurately 4 Set the cooking control on Full Power Co...

Страница 5: ...he door packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certaininitialpartsareintentionallynotgroundedandpresent a risk of electrical shock only during servicing Service personnel Do not contact the following parts while the appliance is energized High...

Страница 6: ...ear pad Start pad Sensor Cooking pads Breakfast Bar pad Lunch on the Run pad One Dish Dinners pad Super Defrost pad Compu Defrost pad Beverage Center pad Number selection pads Kitchen Timer pad Clock pad Minute Plus pad Power Level pad Stop Clear pad Start Touch On pad Oven Cavity Light Yes Safety Standard UL Listed FCC Authorized DHHS Rules CFR Title 21 Chapter 1 Subchapter J SPECIFICATION GENERA...

Страница 7: ...e door is securely closed 3 Removable turntable support 4 Removable turntable The turntable will rotate clockwise or counterclockwise 5 Oven lamp It will light when oven is operating or door is opened 6 Oven door with see through window 7 Ventilation openings Rear 8 Auto Touch control panel 9 Time display Digital display 99 minutes 99 seconds 10 Coupling 11 Wave guide cover 12 Power supply cord R ...

Страница 8: ...wing results The circuits to the turntable motor the cooling fan motor and the high voltage components are de energized the oven lamp remains on and the digital read out displays the time still remaining in the cook cycle when the door was opened 7 The monitor switch electrically monitors the operation of the secondary interlock switch and primary interlock relay and is mechanically associated wit...

Страница 9: ...the SENSOR pads and then touch the Start pad for R 530CK CW NOTE The oven should not be operated on SENSOR immediately after plugging in the unit Wait two minutes before cooking on SENSOR 2 Thecoilofshut offrelay RY 1 isenergized theturntable motor oven lamp and cooling fan motor are turned on but the power transformer is not turned on 3 After about 16 seconds the cook relay RY 2 is energized The ...

Страница 10: ...CH H V RECTIFIER MAGNETRON SECONDARY INTERLOCK SWITCH TTM OL FM MONITOR FUSE 20A CAVITY TEMP FUSE MAGNETRON TEMP FUSE A1 A2 COM COM COM N O N C N O DOOR SENSING SWITCH RY 1 RY 2 CONTROL UNIT PRIMARY INTERLOCK RELAY B1 B2 GRN POWER TRANSFORMER CAPACITOR 1 0µF AC 2300V F3 F1 F2 AH SENSOR 120V AC 60 Hz OVEN LAMP TURN TABLE MOTOR FAN MOTOR MONITOR SWITCH H V RECTIFIER MAGNETRON SECONDARY INTERLOCK SWI...

Страница 11: ...NG A BLOWN MONITOR FUSE TEST THE DOOR SENSING SWITCH PRIMARY INTERLOCK RELAY RY2 RELAY RY1 SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OP ERATION REFERTOCHAPTER TESTPRO CEDURE NOTE MONITOR FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY TURNTABLE MOTOR The turntable motor rotates the turntable located on the bottom of the oven cavity so that the foods on the turntable cook evenly ...

Страница 12: ...t FFS BA016 KIT as an assembly IMPORTANT Whenever troubleshooting is performed with the power supply cord disconnected It may in some cases be necessary to connect the power supply cord after the outer case has been removed in this event 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the p...

Страница 13: ...und and or time of day should appear in display Oven lamp does not light when door is opened Oven lamp does not go out when door is closed Oven lamp lights but fan motor and turntable motor do not operate Oven does not go into cook cycle when START pad is touched Oven seems to be operating but little or no heat is produced in oven load Food incompletely cooked or not cooked at all at end of cook c...

Страница 14: ...ME CAUTION SHOULD BE OBSERVED Power output of the magnetron can be measured by performing a water temperature rise test This test shouldonlybeusedifabovetestsdonotindicateafaultymagnetronandthereisnodefectinthefollowing componentsorwiring siliconrectifier highvoltagecapacitorandpowertransformer Thistestwillrequire a 16 ounce 453cc measuring cup and an accurate mercury thermometer or thermocouple t...

Страница 15: ...ough the vent holes of the oven cavity especially the cooling fan and air guide 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions MAGNETRON TEMPERATURE FUSE TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and blo...

Страница 16: ...mponents during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions PRIMARY INTERLOCK SYSTEM TEST DOOR SENSING SWITCH 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Isolatetheswitchandconnecttheohmmetertothecommon CO...

Страница 17: ...wave ovens proper maintenance cannot be performed with only a voltmeter and ohmmeter In this service manual the touch control panel assembly is divided into two units Control Unit and Key Unit and also the Control Unit is divided into two units LSI Unit and Power Unit and troubleshooting by unit replacement is described according to the symptoms indicated Before testing 1 Disconnect the power supp...

Страница 18: ... 2 In connection with indicators a At a certain digit all or some segments do not light up b At a certain digit brightness is low c Only one indicator does not light d The corresponding segments of all digits do not light up or they continue to light up e Wrong figure appears f A certain group of indicators do not light up g The figure of all digits flicker 2 3 Other possible problems caused by de...

Страница 19: ...se relays are operated by D C voltage Check voltage at the relay coil with a D C voltmeter during the microwave cooking operation DC voltage indicated Defective relay DC voltage not indicated Check diode which is connected to the relay coil If diode is good control unit is defective RELAY SYMBOL OPERATIONAL VOLTAGE CONNECTED COMPONENTS RY1 Approx 24 3V D C Oven lamp Turntable motor Cooling fan mot...

Страница 20: ...e finished 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect the power supply cord 7 Follow the troubleshooting guid...

Страница 21: ... turn off before food is properly cooked 8 If the sensor has not detected the vapor of the food ERROR will appear and the oven will shut off Water load cooking test WARNING The oven should be fully assembled before following procedure Make sure the oven has been plugged in at least two minutes before checking sensor cook operation The cabinet should be installed and screws tightened 1 Fill approxi...

Страница 22: ... other components and oven chassis by using insulation tape 8 After that procedure re connect the power supply cord 9 Check the sensor cook operation proceed as follows 9 1 For R 519CK touch REHEAT pad once For R 530CK CW touch Sensor reheat pad and touch the Start pad 9 2 The control panel is in the sensor cooking operation 9 3 After approximately 30 seconds push plunger of select switch for more...

Страница 23: ...ncipal functions of these units and the signals communicated among them are explained below Key Unit The key unit is composed of a matrix signals generated in the LSI are sent to the key unit through P10 P17 When a key pad is touched a signal is completed through the key unit and passed back to the LSI through AN11 AN10 AN9 P42 P41 and AN8 to perform the function that was requested Control Unit Co...

Страница 24: ...e signal Signal applied to touch key section A pulse signal is input to AN9 AN10 AN11 P41 and P42 terminal while one of G4 line keys on key matrix is touched 9 P15 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to AN9 AN10 AN11 P41 and P42 terminal while one of G3 line keys on key matrix is touched 10 P16 OUT Key strobe signal Signal applied to touch key section ...

Страница 25: ...terminal Standard voltage for LCD 39 40 V1 V0 IN Power source voltage input terminal Standard voltage for LCD Connected to GND 41 VCC IN Power source voltage GND 0V The power source voltage to drive the LSI is input to VCC terminal 42 COM4 OUT Terminal not used 43 COM3 OUT Common data signal COM2 Connected to LCD signal COM2 44 COM2 OUT Common data signal COM1 Connected to LCD signal COM1 45 COM1 ...

Страница 26: ...del ByusingtheA DconvertercontainedintheLSI DCvoltageinaccordancewiththeModel in operation is applied to set up its cooking constant 99 AN8 IN Input terminal to judge the model The signal will be input into AN8 through one of G1 G8 lines on key matrix The LSI will judge the model by this signal 100 AN9 IN Signal similar to AN10 When either G11 line on key matrix is touched a corresponding signal w...

Страница 27: ... control oscillation input of OSC2 16 OSC1 IN Internal clock oscillation frequency input setting The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to OSC1 terminal 17 TEST IN Connected to VC 18 RES IN Auto clear terminal Signal is input to reset the LSI to the initial state when power is applied Temporarily set L level the moment power is applied ...

Страница 28: ...ing of LSI 90 AVCC IN A D converter power source voltage The power source voltage to drive the A D converter in the LSI Connected to GND 91 AN0 IN Used for initial balancing of the bridge circuit absolute humidity sensor This input is an analog input terminal from the AH sensor circuit and connected to the A D converter built into the LSI 92 AN1 IN AH sensor input This input is an analog input ter...

Страница 29: ...are turned on in such a way as to change the resistance values in parallel with R107 R111 of IC2 Changing the resistance values results in that there is the same potential at both F 3 terminal of the absolute humiditysensorandAN0terminaloftheLSI Thevoltage of AN1 terminal will indicate about 2 5V This initial balancing is set up about 16 seconds after the unit is put in the Sensor Cooking mode As ...

Страница 30: ...ntrol panel and the oven itself is so short that the two can t be separated For those models check and repairallthecontrols sensor relatedonesincluded ofthe touchcontrolpanelwhilekeepingitconnectedtotheoven B On some models the power supply cord between the touch control panel and the oven proper is long enough that they may be separated from each other For those models it is possible to check and...

Страница 31: ...NG FOR WIRING 1 Disconnect the power supply cord 2 Make sure that a definite click can be heard when the microwave oven door is unlatched Hold the door in a closed position with one hand then push the door open button with the other this causes the latch leads to rise it is then possible to hear a click as the door switches operate 3 Visuallycheckthedoorandcavityfaceplatefordamage dents cracks sig...

Страница 32: ...ent lead short one of the power transformer from the high voltage capacitor 7 Remove one 1 screw holding capacitor holder with the high voltage rectifier to the base plate 8 Disconnect rectifier terminal from capacitor High voltage rectifier assembly is now free 9 Remove capacitor holder Capacitor is now free CAUTION WHEN REPLACING HIGH VOLTAGE RECTI FIER AND HIGH VOLTAGE CAPACITOR GROUND SIDE TER...

Страница 33: ...ully so that there is no excessive force applied to the ribbon connection Oven lamp socket Terminal Wire lead Terminal hole Flat type small screw driver Terminal Push Pull down 1 2 Lever Positive lock connector LSI unit 1 Disconnect the power supply cord 2 Removeturntableandturntablesupportfromovencavity 3 Lay the oven on it s backside Remove the turntable motor cover by snipping off the material ...

Страница 34: ...hly after installation Make sure that the axis of the shaft is not slanted 5 Install the fan motor to the the oven cavity back plate with the two 2 screws 6 Connect the wire leads to the fan motor referring to the pictorial diagram Side View Rear View Gap Rotor Bracket Stator Groove joint pliers Coil Shaft Axis Stator Rotor These are the positions that should be pinched with pliers Shaft Table Cen...

Страница 35: ...er to Microwave Measurement Procedure Figure C 3 Latch Switch Adjustments REMOVAL 1 Disconnect the power supply cord 2 Push the open button and open the door slightly 3 Insert a putty knife thickness of about 0 5mm into the gap between the choke cover and door frame as shown in Figure C 4 to free engaging parts 4 Pry the choke cover by inserting a putty knife as shown Figure C 4 5 Release choke co...

Страница 36: ...e around door with an approvedmicrowavesurveymeter RefertoMicrowave Measurement Procedure Note The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle Thisfunctiondoesnotrequirethatdoorbeair tight moisture condensation tight or light tight Therefore occasionalappearanceofmoisture light or sensing of gentle ...

Страница 37: ...NO NOTE The neutral WHT GRY wire must be connected to the terminal with N mark on the power supply cord RED WHT RED WHT WHT ORG WHT PNK GRN GRN to Oven cavity WHT WHT RED BLK WHT WHT BLUE MARK WHT RED WHT CAVITY TEMP FUSE MAGNETRON TEMP FUSE FAN MOTOR MONITOR FUSE HOLDER RED RED WHT 1 WHT GRY WHT GRN ORG ORG CN A H N NOTE The grounding conductor of the power supply cord has been grounded by power ...

Страница 38: ...CRO N C C 8 N C DOOR SENSING SWITCH DOOR SWITCH C 6 NOTE IF NOT SPECIFIED 1 4W 5 IF NOT SPECIFIED 1SS270A TURNTABLE MOTOR OVEN LAMP FAN MOTOR TURNTABLE MOTOR OVEN LAMP FAN MOTOR R4 27 R5 4 7k R2 680 1 2w 2SB1238 Q1 R3 510 1 2w R1 2 4k ZD1 HZ16 1 R6 3 3k SP1 VRS1 C1 0 1µ 50v C3 0 1µ 50v C5 10µ 35v C2 1000µ 35v C4 10µ 35v J1 D5 D3 D4 D2 D1 a c d b D6 RY1 D7 D8 RY2 Q2 2SB1238 D1 D4 11ES1 Q3 KRC243M N...

Страница 39: ...EKA Q20 DTA143EKA Q11 DTA143EKA Q21 DTA123JKA D20 1SS355 D41 1SS355 IC2 BA4558 IC2 4 6 5 8 7 LD4 LD3 LD2 LD1 R90 330 1w R94 10k CF1 CST4 00MGW E E D C B A D C B A R92 1 8kF R78 270k R79 270k R77 270k R76 270k R75 270k R74 270k R41 15k R68 15k R69 15k R70 15k R71 15k R72 15k R73 15k R93 360kF R95 47k R97 47k R13 10k R14 10k 1 30 31 50 51 80 81 100 R15 10k R101 75kF R102 37 4kF R100 150kF R99 300k R...

Страница 40: ...µ 50v C20 0 1µ 50v ZD10 UDZ4 3B R12 15k R96 3 57kD R91 3 32kD R11 15k C110 4 7k J10 J11 4 7k J13 4 7k J15 4 7k J17 4 7k J12 J14 J16 D90 MA152WA Q30 DTA143EKA Q11 DTA143EKA Q20 DTA143EKA Q21 DTA123JKA D20 1SS355 D41 1SS355 IC2 BA4558 IC2 4 6 5 8 7 LD10 LD19 LD18 LD17 LD11 LD12 LD16 LD15 LD14 LD13 R90 330 1w R94 10k CF1 CST4 00MGW E E D C B A D C B A R92 1 8kF R78 270k R79 270k R77 270k R76 270k R75...

Страница 41: ...SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 VDD NC NC RESET TEST VREF R03 R02 R01 R00 P13 P12 P11 P10 P03 P02 P01 P00 K03 K02 K01 K00 NC NC NC SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG9 1 100 76 75 51 25 IC3 IZA951DR 26 50 R134 15k R132 33k R133 510k R120 4 7k R1...

Страница 42: ... Printed Wiring Board of Power Unit WH 1 SH B SH A 1 C3 C4 C5 R3 C2 F C1 10 D4 D2 D1 D3 J1 D9 D10 RY3 CN D D8 ZD1 VRB D U R2 R1 R6 R5 SP1 3 E B D6 D5 Q2 R4 2 6 11 P S RY2 T1 AC VRS1 QKITPB026MRE0 5 D7 OMIF D U 9 8 7 E Q1 B 4 E RY1 AC OL TTM FM B Q3 CN C CN C CN B CN A 1 1 9 12 1 1 1 2 XA VH 2 2 ...

Страница 43: ...C KZA087DRE0 J Capacitor 0 1 uF 50V 1 AA C2 VCEAB31VW108M J Capacitor 1000 uF 35V 1 AF C3 RC KZA087DRE0 J Capacitor 0 1 uF 50V 1 AA C4 5 VCEAB31VW106M J Capacitor 10 uF 35V 2 AA D1 4 VHD11ES1 1 J Diode 11ES1 4 AB D5 8 VHD1SS270A 1 J Diode 1SS270ATA 4 AA Q1 2 VS2SB1238 3 J Transistor 2SB1238 2 AA Q3 VSKRC243M 3 J Transistor KRC243M 1 AB R1 VRD B12EF242J J Resistor 2 4k ohm 1 4W 1 AA R2 VRD B12HF681...

Страница 44: ... film 1 AD 5 4 GCOVHB039MRF0 M Choke cover 1 AG 5 5 HPNL B089MRE0 M Door screen R 519CK 1 AK 5 5 HPNL B089MRE0 M Door screen R 530CK 1 AK 5 5 HPNL B090MRE0 M Door screen R 530CW 1 AW MISCELLANEOUS 6 1 FW VZB125MRE0 M Stop switch harnes 1 AF 6 2 FW VZB168MRE0 M Main wire harnes 1 AU 6 3 QW QZB016MRE0 M High voltage wire A 1 AC 6 4 FROLPB025MRK0 M Turntable support 1 AN 6 5 NTNT A099WRE0 M Turntable...

Страница 45: ... H OVEN AND CABINET PARTS 4 9 6 10 2 3 4 7 6 7 1 5 4 6 4 8 6 5 6 4 2 1 7 6 1 12 4 10 7 2 7 2 7 5 4 3 1 13 1 10 4 11 1 15 7 2 7 11 7 3 7 6 1 9 7 8 7 8 4 2 7 5 1 11 1 3 1 4 7 4 1 8 1 8 4 4 7 1 4 1 1 1 1 2 2 2 2 2 2 2 2 2 7 5 7 5 4 12 7 5 6 6 1 7 1 6 4 5 1 14 7 7 7 7 7 10 7 9 7 9 7 10 ...

Страница 46: ... F G H A B C D E F G H CONTROL PANEL PARTS MISCELLANEOUS Actual wire harness may be different from illustration 6 3 6 2 6 1 5 1 5 1 2 5 1 1 5 3 5 4 5 5 5 2 R 519CK R 530CK CW 3 3 3 1 3 4 3 2 3 2 2 3 2 3 3 5 3 2 1 3 1 3 3 3 4 3 2 1 3 2 2 3 2 3 3 5 3 2 DOOR PARTS ...

Страница 47: ...09WRE0 R 530CK SSAKHB005MRE0 R 530CW PACKING CASE SPAKCB258MRR6 R 519CK SPAKCB258MRR4 R 530CK SPAKCB258MRR5 R 530CW TOP PAD ASSEMBLY FPADBB038MRE0 INTO THE OVEN CAVITY 6 5 TURNTABLE TRAY 6 4 TURNTABLE SUPPORT 6 8 OPERATION MANUAL 6 9 RECIPE CARD TRAY PACK SPADPB038MRE0 BOTTOM PAD ASSEMBLY FPADBB039MRE0 TRAY HOLDER SPADFB015MRE0 ...

Страница 48: ...T 1999 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be repro duced stored in retrieval systems or trans mitted in any form or by any means elec tronic mechanical photocopying record ing or otherwise without prior written per mission of the publisher ...

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