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6

R - 5 3 0 E K
R - 530EW

OPERATION

DESCRIPTION OF OPERATING SEQUENCE

The following is a description of component functions during
oven operation.

OFF CONDITION

Closing the door activates the door sensing switch and
secondary interlock switch. (In this condition, the monitor
switch contacts are opened.)
When oven is plugged in, 120 volts A.C. is supplied to the
control unit. (Figure O-1).

1. The display will show "SHARP SIMPLY THE BEST

PRESS CLEAR AND PRESS CLOCK".
To set any program or set the clock, you must first touch
the STOP/CLEAR pad. The display will clear, and "  :  "
will appear.

COOKING CONDITION

Program desired cooking time by touching the NUMBER
pads. Program the power level by touching the POWER
LEVEL pad.
When the START pad is touched, the following operations
occur:

1. The contacts of relays are closed and components

connected to the relays are turned on as follows.
(For details, refer to Figure O-2)

RELAY

CONNECTED COMPONENTS

RY-1

oven lamp/turntable motor/fan motor

RY-2

power transformer

2. 120 volts A.C. is supplied to the primary winding of the

power transformer and is converted to about 3.2 volts
A.C. output on the filament winding, and approximately
2360 volts A.C. on the high voltage winding.

3. The filament winding voltage heats the magnetron

filament and the H.V. winding voltage is sent to a voltage
doubler circuit.

4. The microwave energy produced by the magnetron is

channelled through the waveguide into the cavity feed-
box, and then into the cavity where the food is placed to
be cooked.

5. Upon completion of the cooking time, the power

transformer, oven lamp, etc. are turned off, and the
generation of microwave energy is stopped. The oven
will revert to the OFF condition.

6. When the door is opened during a cook cycle, the

monitor switch, door sensing switch, secondary interlock
switch, relay (RY1) and primary interlock relay are
activated with the following 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 with the door so
that it will function in the following sequence.

(1) When the door opens from the closed position, the

primary interlock relay (RY2) and secondary interlock
switch open their contacts. And contacts of the relay
(RY1) remains closed. Then the monitor switch contacts
close.

(2) When the door is closed from the open position, the

monitor switch contacts open first. Then the contacts of
the secondary interlock switch and door sensing switch
close. And contacts of the relay (RY1) open.

If the secondary interlock switch and primary interlock relay
(RY2) fail with the contacts closed when the door is opened,
the closing of the monitor switch contacts will form a short
circuit through the monitor fuse, secondary interlock switch,
relay (RY1) and primary interlock relay (RY2), causing the
monitor fuse to blow.

POWER LEVEL 0% TO 100% COOKING

When Variable Cooking Power is programmed, the 120
volts A.C. is supplied to the power transformer intermittently
through the contacts of relay (RY-2) which is operated by the
control unit within a 32 second time base. Microwave power
operation is as follows:

VARI-MODE

ON TIME

OFF TIME

100% power

32 sec.

0 sec.

approx. 90% power

30 sec.

2 sec.

approx. 80% power

26 sec.

6 sec.

approx. 70% power

24 sec.

8 sec.

approx. 60% power

22 sec.

10 sec.

approx. 50% power

18 sec.

14 sec.

approx. 40% power

16 sec.

16 sec.

approx. 30% power

12 sec.

20 sec.

approx. 20% power

 8 sec.

24 sec.

approx. 10% power

 6 sec.

26 sec.

0% power

 0 sec.

32 sec.

Note:

The ON/OFF time ratio does not correspond with
the percentage of microwave power, because
approx. 2 seconds are needed for heating of the
magnetron filament.

SENSOR COOKING CONDITION

Using the  SENSOR   function, the food is cooked without
figuring time, power level or quantity. When the oven senses
enough steam from the food, it relays the information to its
microprocessor which will calculate the remaining cooking
time and power level needed for best results. When the food
is cooked, water vapor is developed. The sensor “senses”
the vapor and its resistance increases gradually. When the
resistance reaches the value set according to the menu,
supplementary cooking is started.

Содержание CAROUSEL R-530EK

Страница 1: ...SUREMENT 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 27 PICTORIAL DIAGRAM 33 POWER UNIT CIRCUIT 34 LSI UNIT CIRCUIT 35 PRINTED WIRING BOARD 36 PARTS LIST 37 PACKING AND ACCESSORIES 41 S3108R530EUW R 530EK R 530EW MICROWAVE OVEN MODELS SE...

Страница 2: ... and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance 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 Microwa...

Страница 3: ...acitor 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 Reconnec...

Страница 4: ...f 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 Cookin...

Страница 5: ...ing 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 HighVoltageCapac...

Страница 6: ... From the Pantry pad Beverage Center pad Number selection pads Timer Clock pad Keep Warm Plus 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 GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is equipped with a three prong grounding plug It must be pl...

Страница 7: ... closed 3 Removable turntable support 4 Removable turntable Theturntablewillrotateclockwise or counterclockwise 5 Oven lamp Itwilllightwhenovenisoperating 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 NOTE The directed features are...

Страница 8: ...ycle 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 with the door so that it will function in the following sequence 1 When the door opens from the closed position the primary interlock relay RY2 and secondary interlock switch open their contacts And contacts of the relay...

Страница 9: ...rned on but the power transformer is not turned on 3 After about 16 seconds the cook relay RY 2 is energized The power transformer is turned on microwave energy is produced and first stage is started The 16 seconds is the cooling time required to remove any vapor from the oven cavity and sensor NOTE During this first stage do not open the door or touch STOP CLEAR pad 4 When the sensor detects the ...

Страница 10: ...CH 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 SWITCH TTM OL FM CAVITY TEMP FUSE A1 A2 COM COM COM N ...

Страница 11: ...NITOR 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 during cookin...

Страница 12: ...S 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 prima...

Страница 13: ...d 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 cyc...

Страница 14: ... 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 type temper...

Страница 15: ... 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 block i...

Страница 16: ...ents 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 COM an...

Страница 17: ...e 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 supply ...

Страница 18: ...l digits flicker 2 3 Other possible problems caused by defective control unit a Buzzer does not sound or continues to sound b Clock does not operate properly c Cooking is not possible When 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 Reconnect all leads removed from components during testin...

Страница 19: ...hich is connected to the relay coil If diode is good control unit is defective RELAY SYMBOL OPERATIONAL VOLTAGE CONNECTED COMPONENTS RY1 Approx 24 0V D C Oven lamp Turntable motor Cooling fan motor RY2 Approx 23 0V D C Power transformer 8 Disconnect the power supply cord and then remove outer case 9 Open the door and block it open 10 Discharge high voltage capacitor 11 Reconnect all leads removed ...

Страница 20: ...guide given below if indicator does not light up after above check and repairs are 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 ...

Страница 21: ...en 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 approximately 200 milliliters 7 2 oz of tap water in a 1000 milliliter measuring cup 2 Place the container on the center of tray in...

Страница 22: ...s follows 9 1 Touch the Timer Clock pad once the Power Level pad twice the Start pad once and the number pad 1 once 9 2 The control panel is in the sensor cooking operation 9 3 After approximately 25 seconds push plunger of select switch for more than 3 seconds This condition is same as judgement by AH sensor 9 4 After approximately 3 seconds the oven will turn off automatically and the display sh...

Страница 23: ... The principal functions of these units and the signals com municated 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 P110 P117 When a key pad is touched a signal is completed through thekeyunitandpassedbacktotheLSIthroughP100 P101 P102 P103 ANI6 and ANI7 to perform the function that was requested Control Un...

Страница 24: ...VC 19 21 P27 P25 OUT Terminal not used 22 26 P24 P20 IN Used for initial balancing of the bridge circuit absolute humidity sensor 27 P47 IN To input signal which communicates the door open close information to LSI Door close H level signal 0V Door open L level signal 5V 28 P46 OUT Terminal not used 29 P45 OUT Oven lamp fan motor and turntable motor driving signal To turn on and off shut off relay ...

Страница 25: ... Signal applied to touch key section A pulse signal is input to AIN7 P14 P15 P16 and P17 terminal while one of G8 line keys on key matrix is touched 43 P17 OUT Signal coming from touch key When either G9 line on key matrix is touched a corresponding signal out of P00 P07 will be input into P17 When no key is touched the signal is held at H level 44 P16 IN Signal similar to P17 When either G10 line...

Страница 26: ...CD signal COM6 70 COM11 OUT Common data signal COM5 Connected to LCD signal COM5 71 COM12 OUT Common data signal COM4 Connected to LCD signal COM4 72 COM13 OUT Common data signal COM3 Connected to LCD signal COM3 73 COM14 OUT Common data signal COM2 Connected to LCD signal COM2 74 COM15 OUT Common data signal COM1 Connected to LCD signal COM1 75 102 SEG67 SEG40 OUT Terminal not used 103 142 SEG39 ...

Страница 27: ...he resistance values results in that there is the same potential at both F 3 terminal of the absolute humidity sensor and AIN4 terminal of the LSI The voltage of AIN5 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 the sensor cooking proceeds the food is heated to generate moisture by which the resistance balan...

Страница 28: ...d the oven itself is so short that the two can t be separated For those models check and repair all the controls sensor related ones included of the touch control panel while keeping it connected to the oven 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 an...

Страница 29: ...OR 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 signs o...

Страница 30: ... 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 TERMIN...

Страница 31: ...e LSI unit carefully 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 o...

Страница 32: ...ecause the bracket may be damaged Make sure that the fan blade rotates smoothly 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 1 Disconnect the power supply cord and remove outer case 2 Open the door...

Страница 33: ...he door can be opened 3 Monitor switch contacts close when door is opened 4 Re install outer case and check for microwave leakage around door with an approved microwave survey meter Refer 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 ...

Страница 34: ... tabs of the door frame 1 3 Slide the door glass leftwards and insert the left edge of door glass into the two 2 tabs of the door frame 2 Re install the door glass stopper to the door frame so that the two 2 holes of the door glass stopper fit to the two 2 pins of the door frame And hold the door glass stopper with one 1 screw 3 Re installthelatchspringtothelatchhead Re installthe latch spring to ...

Страница 35: ...OTE 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 supp...

Страница 36: ...10µ 35v C2 1000µ 35v C4 10µ 35v R1 2 4k 1SS270A 1SS270A D1 D4 11ES1 D6 R5 4 7k R2 680 1 2w R3 510 1 2w R6 3 3k Q2 2SB1238 SP1 PKM22EPT Q1 2SB1238 RY1 RY2 Q3 KRC243M CN C 12PIN LEAD WIRE HARNESS LED GND VC VA INT VR BUZZER MICRO NC NC DOOR SENSING SWITCH OVEN LAMP TURNTABLE MOTOR FAN MOTOR AC AC MICRO DOOR SENSING SWITCH OVEN LAMP TURNTABLE MOTOR FAN MOTOR C10 C 2 C 3 C 1 C 4 C 9 C 5 C 6 C 7 C 8 C1...

Страница 37: ...r Level Keep Warm Plus 15 Minute Recipes Defrost Center Custom Help Baked potatoes Sensor reheat Minute Plus Vegetables Rice 1 6 2 7 3 8 4 9 5 0 Poultry Ground meat Entrees Timer Clock Stop Clear C61 330p 50v C62 330p 50v C63 330p 50v C64 330p 50v C65 330p 50v R75 270k R60 15k R61 15k R62 15k R63 15k R64 15k R65 15k R66 15k R67 15k R76 270k R77 270k R78 270k R79 270k R70 15k R71 15k R72 15k R73 15...

Страница 38: ...S 4 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 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 39: ...5V 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 B12HF681J J Resistor 680 ohm 1 2W 1 AA R3 VRD B12HF511J J Resistor 510 ohm 1 2W 1 AB R4...

Страница 40: ...ole cover 1 AA 6 4 FROLPB025MRK0 M Turntable support 1 AN 6 5 NTNT A099WRE0 M Turntable tray 1 AT 6 6 TCAUAB037MRR0 M Monitor caution label 1 AA 6 7 TCAUAB038MRR0 M DHHS Screw caution label 1 AB 6 8 TINSEB267MRR0 M Operation manual 1 AD 6 9 QW QZB016MRE0 M High voltage wire A 1 AD 6 10 TCADUB006MRR0 M Recipe card 1 AC 6 11 TLAB B040MRR0 M Menu label 1 AD SCREWS NUTS AND WASHERS 7 1 LX BZA041WRE0 M...

Страница 41: ... AND CABINET PARTS 2 3 4 7 6 7 1 5 4 6 4 8 4 11 7 6 7 2 1 15 4 9 6 11 6 3 6 5 6 4 2 1 7 6 1 12 4 10 4 13 7 2 7 2 4 3 1 13 1 10 7 3 7 6 7 6 1 9 7 8 7 8 4 2 7 5 1 11 1 3 1 4 7 1 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 4 7 7 7 4 7 9 7 9 7 7 ...

Страница 42: ... 2 3 A B C D E F G H A B C D E F G H Actual wire harness may be different from illustration 6 9 6 2 6 1 5 6 5 8 3 3 1 3 3 2 3 3 4 3 3 3 5 4 5 5 5 2 3 3 3 5 3 4 3 6 3 6 3 6 3 1 3 2 5 9 5 1 5 3 5 7 CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS ...

Страница 43: ...BAG SSAKHB007MRE0 PACKING CASE SPAKCB309MRR3 R 530EK SPAKCB309MRR2 R 530EW TOP PAD ASSEMBLY FPADBB050MRE0 INTO THE OVEN CAVITY 6 5 TURNTABLE TRAY 6 4 TURNTABLE SUPPORT 6 8 OPERATION MANUAL TRAY PACK SPADPB042MRE0 BOTTOM PAD ASSEMBLY FPADBB051MRE0 TRAY HOLDER SPADFB051MRE0 6 10 RECIPE CARD ...

Страница 44: ...T 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in retrieval systems or transmitted in any form or by any means electronic mechanical photocopying recording orotherwise withoutprior written permission of the publisher ...

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