Sharp r-8580 manual Damper, Convection Heater or Convection FAN Removal

Page 33

R -8580

 

 

 

 

 

 

 

 

DAMPER

ASSEMBlY

REMOVAL

 

 

 

 

 

1.

Disconnect

oven

from

power

supply

and remove

7.

Raise

the

stopper

of the

damper

shaft,

and

pull out

 

outer case.

 

 

 

 

 

 

 

 

 

the

damper shaft.

 

 

 

 

 

2.

Discharge

the

high

voltage

capacitor.

 

 

8.

Pull

the damper

ass’y out of the

thermal protection

3.

Disconnect

wire

leads

from

damper

motor

and

 

plate(

right).

 

 

 

 

 

 

 

damper

switch.

 

 

 

 

 

 

 

9.

Remove

one

(1)

screw

holding

the

motor

to the

4.

Do above

the

MAGNETRON

 

REMOVAL

from

No.3

 

damper.

 

 

 

 

 

 

 

 

to No.6.

 

 

 

 

 

 

 

 

 

1O-The damper

is now free.

 

 

 

 

5.

Remove

one

(1) screw

holding the magnetron

air

11 .Remove

one

(1)

screw

holding

the damper

switch

 

guide to

waveguide

flange.

 

 

 

 

 

to the

damper.

 

 

 

 

 

6.

Remove

the magnetron

air

guide.

 

 

12.Now,

 

the

damper

switch

is free.

 

 

 

CONVECTION HEATER OR CONVECTION FAN REMOVAL

I. Do CONVECTION MOTOR REMOVAL from No.1 to No.10.

2.Remove five (5) screws holding the convection air

guide (4-40,4-41,4-42,4-45) to the heater duct.

3.Remove four (4) screws holding the convection air guide (4-38) to the heater duct.

4.The convection air guide is now free.

5.Remove two (2) screws holding heating element holders to the heater duct and remove them.

6.Remove two (2) screws holding convection heater to heater duct.

7.Pull the convection heater out of the heater duct.

8. Now the convection heater is free.

CONVECTION FAN

1.Do CONVECTION MOTOR REMOVAL from No.1 to No.13.

2.Remove two (2) screws holding the shaft mounting plate ass’y to the heater duct.

3.Pull the convection fan and washer out of the heater duct.

4.Convection fan is now free.

UPPER LATCH SWITCH / MONITOR SWITCH REMOVAL

1.Disconnect oven from power supplv. . . and remove outer case.

2.Discharge the high voltage capacitor.

3.Disconnect the wire leads from the switches.

4.Remove the one (1) screw holding the upper latch hook to the oven flange.

5.Remove the upper latch hook assembly from oven flange.

6.Push outward on the two (2) retaining tabs holding the switch in place.

7.The switch is now free.

Re-install

1. Re-install each interlock switch in its place. The monitor switch is in the upper position and the up- per latch switch is in the lower position.

2. Re-connect the wire leads to each switch. Refer to the pictorial diagram.

3. Secure the upper latch hook (with the one (‘I ) mounting screw) to the oven flange.

4. Make sure that the monitor switch and upper. latch switch are operating properly.

Refer to chapter “Test Procedure” and “Adjustment procedure”.

(RDA1203tJ)

LOWER LATCH SWITCH AND STOP SWITCH REMOVAL

1.Disconnect the oven from the power supply and remove the outer case.

2.Discharge the high voltage capacitor.

3.Disconnect the wire leads from the switches.

4.Remove the one (1) screw holding the lower latch hook to the oven cavity front frange.

5.Remove the lower latch hook from the flange by moving it downward.

6.To remove the individual switch from the lower latch hook, push outward the two (2) retaining tabs holding the switch in place.

7.The switch is now free.

Re-install

1.Re-install each interlock switch in its place. The stop switch is in the upper position and the lower latch switch is in the lower position.

2.Re-connect the wire leads to each switch. Refer to the pictorial diagram.

3.Secure the lower latch hook (with the one (1) mounting screws) to the oven flange.

4.Make sure that the lower latch switch and stop switch are operating properly.

Refer to chapter “Test Procedure” and “Adjustment procedure”.

(RDAl203U)

(RDA1203U)

32

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Contents Sharp Sharpcorporatkn OSAKA, Japan Microwave RadiationConvection Microwave Oven 8580Product Description SpecificationAuto-TouchTM Control Panel Description of Operating Sequence OperationOFF Condition Cooking ConditionAutomatic MIX Cooking Condition Convection Cooking ConditionPreheating Condition Convection Cooking ConditionCompu Cook Sensor Cooking ConditionEasy Defrost Cooking Cooking Sequence240V-50Hz G-4 Figure O-l. Oven Schematic-OFF ConditionFigure O-3. Oven Schematic-Convection Cooking Condition Description and Function of Components Convection Heater Convection Cooking SystemDamper OPEN-CLOSE Mechanism Problem Possible Cause Test Procedure Correction ServicingOFF Condjtion Problem Possible Cause Test Procedure or Correction Nents Defective Convection Heater Procedure RelayRY4 Unit Microwave Output Power Test Procedures Letter Component Magnetron Assembly TestPower Transformer Test Procedure Letter Test Procedures CONT’D Component TestSwitch Test High Voltage Rectifier and Rectifier TestBlown Fuse Test Procedures CONT’D Letter Component Monitor Switch TestTEMP. Fuse Test Thermal CUT-OUTDamper Switch Test Procedure LetterThermistor Test Damper Motor TestRelay Symbol Operational Connected Components Voltage Test Procedures CONT’O Letter Component Relay UnitKEY Unit Test Testing Method for AH Sensor AND/OR Control Unit Checking the initial sensor cooking conditionWater load cooking test Steps Occurance Cause or Correction Sensor Dummy Resistor CircuitTouch Control Panel Assembly Outline of Touch Control PanelLSI LSI IZA096DR Description of LSJSeqment Data Siqnal Seqment Data signalKev strobe siqnal Internal clock oscillation frequency input settinqSignal svnchronized with commercial source frequencv50Hz Signal to SoundPower source voltage Magnetron High-voltaae Circuit driving SignalInput signal which communicates the door open/close Damper motor relav driving signalSignal cominq from touch kev Signal coming from touch keySensor Inuut Temperature measurement input Oven ThermistorRI4 Terminal For Manufacture TestSensor Circuit Absolute HumidityServicing Other PrecautionsShapes of Electronic Components Servicing of Touch Control PanelPower Transformer Removal Component Replacement and Adjustment ProcedureHigh Voltage Capacitor Removal Turntable Motor AND/OR Coupling RemovalMagnetron Removal Convection Motor RemovalCooling FAN Motor Removal Lower Latch Switch and Stop Switch Removal Upper Latch Switch / Monitor Switch RemovalDamper RemovalCPU Unit and KEY Unit Control Panel Assembly and CPU Unit RemovalDoor Replacement and Adjustment Door ReplacementDoor Adjustment Preparation for Testing Microwave MeasurementRequirement 11II II II II OIL 8580 II I Figure S-3. Printed Wiring BoardAY AK AF AH Parts ListRR-DZ561PDREO Q8LAT AH FOVN-A090WRYO AG AD 11 AA 13 AA Ii AA Replacement Parts List 8580 ‘Y \‘\ Control Panel Parts Door Assembly MiscellaneousPacking and Accessories 8580 8580 Sharp
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