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Panasonic NN-SD452W, NN-ST452W, NN-ST462M 4.6. Turntable motor, 4.7. Steam sensor

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4.6. Turntable motor

1. Remove the motor cover bybreaking off at the 8 spots

indicated by arrows with a cutter or the like.

NOTE:

After removing the motor cover, be sure that cut

portions are properly trimmed or bent to the inside

so that no sharp edges will be exposed to outside.

2. Disconnect 2lead wiresconnected to theturntable motor.

3. Remove theturntable motorby removing screw.

NOTE:

After reinstalling the new turntable motor and

reconnecting the 2 lead wires, reinstall the motor

cover by rotating it around 180, tucking the 2 tabs

under the base in the 2 provided slots, then screw

the single tab to the base using a 4mm × 6mm

screw.

4.7. Steam sensor

1. Disconnect connectorCN2 from digital programmercircuit

board.

2. Disengage catchhooks onsensor cover Cfrom orifice.

3. Remove steamsensor fromorifice.

NOTE:

When installing the steam sensor, make sure that

the direction of steam sensor is as shown in figure.

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NN-SD452W/ NN-ST462M / NN-ST452W

Contents

Main Page Page CONTENTS Page Page Page 2.1. Variable power cooking control 2.2. Inverter power supply circuit 2.3. Turbo defrost, Auto cook 2.4. Sensor cooking 2 DESCRIPTION OF OPERATING SEQUENCE 2.5. Steam sensor and digital programmer circuit 3.1. Check the grounding 3.2. Inverter warnings 3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 3.3. Part replacement. 3.4. When the 10A fuse is blown due to the malfunction of the short switch: 3.5. Avoid inserting nails, wire etc. through any holes in the unit during operation. 3.6. Verification after repair 3.7. Sharp edges 4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 4.3. Low voltage transformer and/or power relays (RY1, RY2) 4.4. Fan motor 4.5. Door assembly Page 4.6. Turntable motor 4.7. Steam sensor 4.8. Inverter power supply 5.1. Primary, Secondary Latch Switch interlocks & Power Relay RY1 5.2. Short Switch 5.3. Magnetron 5.4. key board membrane (Membrane switch assembly) 5 COMPONENT TEST PROCEDURE 5.5. Inverter power supply (U) 5.6. Temperature thermistor 6.1. Adjustment of primary latch switch, secondary latch switch and short switch. 6.2. Measurement of microwave output 6 MEASUREMENTS AND ADJUSTMENTS 7 TROUBLESHOOTING GUIDE DANGER: HIGH VOLTAGES 7.1. (Troubleshooting) Oven stops operation during cooking 7.2. (Troubleshooting) Other problems 7.3. Troubleshooting of inverter circuit (U) and magnetron 7.4. Simple way of H.V. Inverter/magnetron troubleshooting 7.5. How to check the semiconductors using an OHM meter 7.6. H.V. INVERTER MAIN PARTS LIST (Z606YBA00QP) Page 8.2. PARTS LIST 8.3. ESCUTCHEON BASE ASSEMBLY 8.3.1. NN-SD452W 8.3.2. NN-ST462M, ST452W 8.4. DOOR ASSEMBLY Page 8.6. PACKING AND ACCESSORIES