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6

R - 5 3 0 E S

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 "Welcome".

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.

Summary of Contents for Carousel R-530ES

Page 1: ...IAGRAM 9 POWER UNIT CIRCUIT 10 LSI UNIT CIRCUIT 11 PARTS LIST 12 PACKING AND ACCESSORIES 16 S51M166R530EE R 530ES MICROWAVE OVEN MODEL SUPPLEMENTAL SERVICE MANUAL R 530ES SHARP ELECTRONICS CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice Service Headquarters Sharp Plaza Mahwah New Jersey 07430 2135 SENSOR COOKING...

Page 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...

Page 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...

Page 4: ...e 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 Cooking Mo...

Page 5: ... 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 Certain initial parts are intentionally not grounded and present ariskofelectricalshockonlyduringservicing Serviceperson nel Do not contact the following parts while the appliance is energized High Voltage Capacitor Power Transf...

Page 6: ...ntry 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 plugged into a...

Page 7: ...rntable The turntable will rotate clockwise 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 Thedirectedfeaturesaredisabled after three minutes when the oven is not i...

Page 8: ...edwith 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 thesecondaryinterlockswitchandprimaryinterlockrelay andismechanicallyassociat...

Page 9: ...TM 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 O N ...

Page 10: ...espond to the STOP CLEAR pad making momentary contact If the control unit responds by clearing with a beep the key unit is faultyandmustbereplaced Ifthecontrolunitdoesnotrespond itisafaultyandmustbereplaced Ifaspecificpaddoesnotrespond theabovemethodmaybeused afterclearingthecontrolunit to determine if the control unit or key pad is at fault 5 Reconnect all leads removed from components during tes...

Page 11: ...E 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 supply...

Page 12: ...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 C11 C12 A 2 NO COM COM B 2 B 2 NO ...

Page 13: ...15k R10 1k R15 4 7k R16 4 7k R17 4 7k R18 4 7k R98 620k R99 300k R100 150kF R101 75kF R102 37 4kF R19 4 7k C12 0 1µ 50v C92 0 01µ 25v C93 0 01µ 25v ZD10 UDZ4 3B Q10 2SA1037AK 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 15k R68 15k C 6 C 5 C 7...

Page 14: ...pacitor 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 B12HF681J J Resistor 680 ...

Page 15: ...7MRE0 Cavity hole cover 1 AA 6 4 FROLPB025MRK0 Turntable support 1 AN 6 5 NTNT A099WRE0 Turntable tray 1 AT 6 6 TCAUAB037MRR0 Monitor caution label 1 AA 6 7 TCAUAB033MRR0 DHHS Screw caution label 1 AB 6 8 TINSEB265MRR0 Operation manual 1 AD 6 9 QW QZB016MRE0 High voltage wire A 1 AD 6 10 TCADUB006MRR0 Recipe card 1 AC 6 11 TLAB B040MRR0 Menu label 1 AD 6 12 TLABBB008MRE0 UL screw caution label 1 A...

Page 16: ...D E F G H 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 6 12 7 5 ...

Page 17: ...5 1 2 3 A B C D E F G H A B C D E F G H CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS 5 1 5 3 5 2 5 6 5 4 5 5 Actual wire harness may be different from illustration 6 9 6 2 6 1 3 3 1 3 4 3 3 3 3 2 3 5 3 4 3 6 3 6 3 6 3 1 3 2 3 3 3 ...

Page 18: ...AND ACCESSORIES DOOR PROTECTION SHEET PLASTIC BAG PACKING CASE TOP PAD ASSEMBLY INTO THE OVEN CAVITY 6 5 TURNTABLE TRAY 6 4 TURNTABLE SUPPORT 6 8 OPERATION MANUAL TRAY PACK BOTTOM PAD ASSEMBLY TRAY HOLDER 6 10 RECIPE CARD ...

Page 19: ...17 R 530ES Notes ...

Page 20: ... BY SHARP CORPORATION ALL RIGHTS RESERVED Nopartofthispublicationmaybereproduced stored in retrieval systems or transmitted in any form or by any means electronic me chanical photocopying recording or other wise without prior written permission of the publisher ...

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