Panasonic NN-SE992S User manual

© Panasonic Home Appliances Microwave Oven
(Shanghai) Co., Ltd. 2012.
NN-SE992S
NN-SD982S
NN-ST962S
RPH (MEXICO & LATIN AMERICA)
Microwave Oven
ORDER NO.PAPMOSH1201008CE
E1

2
NN-SE992S / NN-SD982S / NN-ST962S

3
NN-SE992S / NN-SD982S / NN-ST962S

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. Inverter defrost 6
2.4. Sensor cooking 6
2.5. Sensor reheat 7
2.6. Steam sensor and digital programmer circuit 7
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING
8
3.1. Check the grounding 8
3.2. Inverter warnings 8
3.3. Part replacement. 9
3.4. When the 20A fuse is blown due to the malfunction of the
monitor switch: 9
3.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation. 9
3.6. Verification after repair 9
3.7. Sharp edges 9
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE
10
4.1. Magnetron 10
4.2. Digital programmer circuit (D.P.C) 10
4.3. Low voltage transformer and/or power relays (RY1, RY2)
11
4.4. Fan motor 11
4.5. Door assembly 11
4.6. Turntable motor 12
4.7. Steam sensor 12
4.8. Inverter power supply 13
5 COMPONENT TEST PROCEDURE 14
5.1. Primary, Secondary Interlock Switch & Power Relay RY1
14
5.2. Monitor Switch 14
5.3. Magnetron 14
5.4. key board membrane (Membrane switch assembly) 14
5.5. Inverter power supply (U) 15
5.6. Temperature thermistor 15
6 MEASUREMENTS AND ADJUSTMENTS 16
6.1. Adjustment of primary interlock switch, secondary interlock
switch and monitor switch. 16
6.2. Measurement of microwave output 16
7 PROCEDURE FOR MEASURING MICROWAVE ENERGY
LEAKAGE 17
7.1. Equipment 17
7.2. Procedure for measuring radiation leakage 17
7.3. Record keeping and notification after measurement 17
8 TROUBLESHOOTING GUIDE 18
8.1. (Troubleshooting) Oven stops operation during cooking
19
8.2. (Troubleshooting) Other problems 20
8.3. Troubleshooting of inverter circuit (U) and magnetron 21
8.4. Trouble related to Digital Programmer Circuit 22
8.5. SIMPLE WAY OF H.V. INVERTER/MAGNETRON
TROUBLESHOOTING 25
8.6. H.V.INVERTER BOARD MAIN PARTS LIST
(F606Y8X00AP) 25
8.7. How to check the semiconductors using an OHM meter
26
9 EXPLODED VIEW AND PARTS LIST 27
9.1. EXPLODED VIEW 27
9.2. PARTS LIST 28
9.3. ESCUTCHEON BASE ASSEMBLY 29
9.4. DOOR ASSEMBLY 32
9.5. WIRING MATERIALS 33
9.6. PACKING AND ACCESSORIES 34
10 DIGITAL PROGRAMMER CIRCUIT 35
10.1. SCHEMATIC DIAGRAM (NN-SE992S) 35
10.2. SCHEMATIC DIAGRAM (NN-SD982S) 37
10.3. SCHEMATIC DIAGRAM (NN-ST962S) 39
10.4. PARTS LIST 41
CONTENTS
Page Page
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NN-SE992S / NN-SD982S / NN-ST962S

1 SCHEMATIC DIAGRAM
5
NN-SE992S / NN-SD982S / NN-ST962S