Sharp R-9H56 Service Manual

R-9H56SHARP CORPORATION SERVICE MANUALIn interests of user-safety the oven should be restored to its originalcondition and only parts identical to th

R-9H568FUSE M8A 250V1. If the wire harness or electrical components are short-circuited, this fuse blows to prevent an electric shock orfire hazard.2.

R-9H569Microwave Cooking:Damper is in the open position, because a portion of coolingair is channelled through the cavity to remove steam andvapours g

R-9H5610 WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of producing very high voltage and current, contact with any part of th

R-9H5611MAGNETRONPOWER TRANSFORMERH.V. RECTIFIER ASSEMBLYHIGH VOLTAGE CAPACITORLATCH AND STOP SWITCHESMONITOR SWITCHDAMPER SWITCHMAIN FUSETEMPERATURE

R-9H5612TEST PROCEDURESPROCEDURELETTERCARRY OUT 3D CHECK.Isolate the magnetron from high voltage circuit by removing all leads connected to filament t

R-9H5613TEST PROCEDURESPROCEDURELETTERCOMPONENT TEST6. Measure the final water temperature. (Example: The final temperature T2 = 21°C)7. Calculate the

R-9H5614TEST PROCEDURES (CONT'D)ExampleInitial temperature ...T1 = 23˚C

R-9H5615TEST PROCEDURES (CONT'D)PROCEDURELETTERCOMPONENT TESTASYMMETRIC RECTIFIER TESTCARRY OUT 3D CHECKS.Isolate the high voltage rectifier asse

R-9H5616PROCEDURELETTERCOMPONENT TESTTEST PROCEDURES (CONT'D)G TEMPERATURE FUSE AND THERMAL CUT-OUT TEST CARRY OUT 3D CHECKS. Disconnect the lead

R-9H5617TEST PROCEDURES (CONT'D)PROCEDURELETTERCOMPONENT TESTDisconnect the leads from the motor.Using an ohmmeter, check the resistance between

R-9H56

R-9H5618TEST PROCEDURES (CONT'D)PROCEDURELETTERCOMPONENT TESTM KEY UNIT TESTIf the display fails to clear when the STOP/CLEAR pad is depressed, f

R-9H5619TEST PROCEDURES (CONT'D)PROCEDURELETTERCOMPONENT TESTRY413(J1)31CN-AM1357 9 DAMPMCONV MFANPOWERPS1 S2T1bacVRS1dProblem: POWER ON, indica

R-9H5620(3) Remove the AH sensor.(4) Install the new AH sensor.(5) Re-install the outer case.(6) Reconnect the oven to the power supply and check the

R-9H56214) ACL CircuitA circuit to generate a signals which resetting the LSI tothe initial state when power is applied.5) Buzzer CircuitThe buzzer is

R-9H56221 VCC IN Connected to GND.2 VEE IN Anode (segment) of Fluorescent Display light-up voltage: -28V.Vp voltage of power source circuit input.3 AV

R-9H5623The square waveform voltage is deliveredto the relay(RY1) driving circuit andrelays(RY2,RY3,RY5) control circuit.20-21 P46-P45 OUT Terminal no

R-9H5624Pin No. Signal I/O DescriptionKey strobe signal.Signal applied to touch-key section. A pulsesignal is input to P24-P27 terminal while one ofG

R-9H5625Pin No. Signal I/O Description53 P03 OUT Segment data signal. Signal similar to P23.Key strobe signal.Signal applied to touch-key section. A p

R-9H56261. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling these parts, the f

R-9H5627COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDUREWARNING: Avoid possible exposure to microwave energy. Please follow the instructions below befor

R-9H561SERVICE MANUALPRODUCT SPECIFICATIONSSHARP CORPORATIONOSAKA, JAPANCAUTIONMICROWAVE RADIATIONDO NOT BECOME EXPOSED TO RADIATION FROMTHE MICROWAVE

R-9H5628ASYMMETRIC RECTIFIER AND HIGH VOLTAGE RECTIFIER REMOVAL1. CARRY OUT 3D CHECKS.2. Remove one (1) screw holding the high voltage rectifiertermin

R-9H5629 TURNTABLE MOTOR AND/OR COUPLING REMOVAL1. Disconnect the oven from power supply.2.Remove one (1) screw holding the turntable motor coverto th

R-9H5630CAUTION:* Do not hit the fan blade strongly when installedbecause the bracket may be transformed.* Make sure that the fan blade rotates smooth

R-9H5631DOOR DISASSEMBLYRemove door assembly, refer to “Door Replacement”.Replacement of door components are as follows:1. Place door assembly on a so

R-9H5632MICROWAVE MEASUREMENTAfter adjustment of door latch switches, monitor switchand door are completed individually or collectively, thefollowing

R-9H5633SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CLOCK APPERARS ON DISPLAYFigure O-1. Oven Schematic-OFF ConditionSCHEMATICNOTE: CONDITION OF

R-9H5634Figure O-4. Oven Schematic-Automatic Mix Cooking ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CONVECTION PAD TOUCHED.3.DESIRED T

R-9H5635645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHV. RECTIFIERO RGBLKASYMMETRIC RECTIFIERMAGNETRONREDREDHV. WIRE AREDGRYHIGH VOLT

R-9H5636645123645123ABCDEFGHABCDEFGHAC240V 50HzA-9A-7COMN.O.A-5A-3A-1IF NOT SPECIFIED. 0.01µ/16VCOMN.O.COMOVEN LAMP TURNTABLEMOTOR COM.POWERTRANSF

R-9H5637645123645123ABCDEFGHABCDEFGHDIP, 32 1R11(CN-D)R103R102R101R100C10033 40 R91 R92 R93D91D92D93D94 R94D95 R95D97 R96D96 R97D98 R984

R-9H562PRODUCT SPECIFICATIONSITEM DESCRIPTIONPower Requirements 240 Volts50 HertzSingle phase, 3 wire earthedPower Consumption 1500 W (Microwave)1600

R-9H5638PARTS LISTNote: The parts marked "∆" may cause undue microwave exposure.The parts marked "*" are used in voltage more than

R-9H5639Note: The parts marked "∆" may cause undue microwave exposure.The parts marked "*" are used in voltage more than 250V.REF.

R-9H5640Note: The parts marked "∆" may cause undue microwave exposure.The parts marked "*" are used in voltage more than 250V.REF.

R-9H56417-21 XFPSD30P08000 Screw; 3mm x 8mm 2 AA7-22 XFPSD40P08K00 Screw; 4mm x 8mm 5 AA7-23 XFPSD40P08000 Screw; 4mm x 8mm. 5 AA7-24 XFPSD60P14JS0

R-9H5642OVEN AND CABINET PARTS645123645123ABCDEFGHABCDEFGH1-131-77-297-107-207-19A7-17-291-224-37-224-334-424-277-251-167-11TO OVEN BASE PLATE7-44-13

R-9H5643645123645123ABCDEFGHABCDEFGHCONTROL PANEL PARTS5-15-107-175-55-37-255-27-25-75-85-95-67-18 7-19x37-175x65-4x3DOOR PARTS3-23-13-83-53-93-63-77

R-9H5644645123645123ABCDEFGHABCDEFGHMISCELLANEOUSPACKING AND ACCESSORIES6-1Actual wire harness may be different than illustration.6-96-126-76-26-116-6

R-9H5645

R-9H5646'94SHARP CORP. (11K0.620E) Printed in Australia

R-9H563APPEARANCE VIEW11114151111234591021346781. Ventilation opening2. Oven lamp3. Door hinges4. Door safety latches5. See through door6. Door open b

R-9H564OPERATION SEQUENCEThe following is a description of component functions duringoven operation.Relay and Components ConnectionRELAY CONNECTED COM

R-9H5652. The coil of relay (RY4) is energized by the CPU unit. Thedamper is moved to the closed position, opening thedamper switch contacts. The open

R-9H566AH SENSOR COOKING SEQUENCE1. In case the AH sensor cooking condition is started, thecoil of shut-off relays (RY1+RY6) are energized, theoven la

R-9H5673. Once the fire sensor feature has shut the unit down, theprogrammed cooking cycle may be resumed by pressingthe "START" pad or the