Table Of Contents

COVER

1 SCHEMATIC DIAGRAM

1.1 NN-S554MF / WF

1.2 NN-K593MF / K574 / K544WF

2 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING

2.1 Check the grounding

2.2 Inverter warnings

2.3 Part replacement.

2.4 When the 10A fuse is blown due to the operation of the short switch:

2.5 Avoid inserting nails, wire etc. through any holes in the unit during operation.

2.6 Confirm after repair

2.7 Sharp edges

3 MEASUREMENTS AND ADJUSTMENTS

3.1 Adjustment of primary latch switch, secondary latch switch and short switch.

3.2 Measurement of microwave output

4 EXPLODED VIEW AND PARTS LIST

4.1 EXPLODED VIEW

4.2 PARTS LIST

4.3 DOOR ASSEMBLY

4.4 WIRING MATERIALS

4.5 PACKING AND ACCESSORIES

4.6 ESCUTCHEON BASE ASSEMBLY

4.7 H.V. INVERTER BOARD MAIN PARTS LIST (F606Y4V00XN)

5 DIGITAL PROGRAMMER CIRCUIT

5.1 NN-S554MF / WF

5.2 NN-K593MF

5.3 NN-K574MF / WF, NN-K544WF

5.4 PARTS LIST

5.4.1 NN-S554MF / S554WF / K574MF / K574WF / K544WF

5.4.2 NN-K593MF