Panasonic NN-CS894S, Руководство по обслуживанию

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1 SCHEMATIC DIAGRAM 5
2 DESCRIPTION OF OPERATING SEQUENCE 6
2.1. Variable power cooking control 6
2.2. Inverter power supply circuit 6
2.3. Turbo defrost, Auto cook 6
2.4. Sensor cooking 6
2.5. Sensor and digital programmer circuit 6
2.6. Grill cooking control 7
2.7. Convection cooking control 7
2.8. Steam function 7
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 8
3.1. Check the grounding 8
3.2. Inverter warnings 8
3.3. Part replacement. 8
3.4. Confirm before repair 9
3.5. When the 15A fuse is blown due to the malfunction of the
short switch: 9
3.6. Avoid inserting nails, wire etc. through any holes in the
unit during operation. 9
3.7. Verification after repair 9
3.8. Sharp edges 9
3.9. Hot surface 9
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 10
4.1. Cabinet body & Rear cover B 10
4.2. H.V. Inverter/Magnetron/Digital programmer circuit (D.P.C.)
(AU)/Fan motor/Stirrer motor 11
4.3. Upper Heater (Heater BU) 16
4.4. Steam Heater (Heater DU) 16
4.5. Door assembly/Digital programmer circuit (D.P.C) (FU) &
(D.P.C) (BU) 17
4.6. Convection motor and convection heater 21
4.7. Pump 23
4.8. Front cover 25
5 COMPONENT TEST PROCEDURE 26
5.1. Primary, Secondary Latch Switch interlocks & Power
Relay RY1 26
5.2. Short Switch 26
5.3. Magnetron 26
5.4. FAN MOTOR 26
5.5. Inverter power supply (U) 27
5.6. Temperature thermistor 27
6 MEASUREMENTS AND ADJUSTMENTS 28
6.1. Adjustment of Primary latch switch, Secondary latch
switch and Short switch. 28
6.2. Measurement of microwave output 29
7 TROUBLESHOOTING GUIDE 30
7.1. (Troubleshooting) Oven stops operation during cooking 30
7.2. (Troubleshooting) Other problems 31
7.3. Troubleshooting of inverter circuit (U) and magnetron 32
7.4. Simple way of H.V. Inverter/magnetron troubleshooting 33
7.5. How to check the semiconductors using an OHM meter 33
7.6. H.V. INVERTER MAIN PARTS LIST (Z606YBH20GP) 34
8 EXPLODED VIEW AND PARTS LIST 35
8.1. EXPLODED VIEW 35
8.2. PARTS LIST 36
8.3. DOOR & ESCUTCHEON BASE ASSEMBLY 38
8.4. WATER TANK ASSEMBLY 39
8.5. WIRING MATERIALS 40
8.6. PACKING AND ACCESSORIES 41
9 DIGITAL PROGRAMMER CIRCUIT 42
9.1. SCHEMATIC DIAGRAM (D.P.CIRCUIT AU) 42
9.2. SCHEMATIC DIAGRAM (D.P.CIRCUIT BU & FU) 44
CONTENTS
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NN-CS894S