Panasonic NN-K543WF User Manual

© 2003 Shanghai Matsushita Microwave Oven Co.,
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
NN-S453WF
NN-S553WF NN-K593MF
NN-K573MF NN-K573WF
NN-K543WF
QPQ(Australia, New Zealand)
HPE(Hong Kong)
YPQ(Singapore)
MPQ(Malaysia)
TPE(Thailand, Indonesia)
LPK(Philippines)
YTE(Others)
KTE(UAE, Egypt)
PTE( Iran)
KPQ(Kuwait, Doha, Qatar, Oman, Bahrain, Pakistan)
STM(Saudi Arabia)
ZPE(CIS Countries)
Microwave Oven
ORDER NO.SIMMC0306022C3

Panasonic NN-K543WF Specifications

General

Type	Microwave Oven
Power Output	900 W
Turntable	Yes
Turntable Diameter	315 mm
Weight	13.5 kg
Voltage	230 V
Frequency	50 Hz
Color	White
Control Type	Touch
Capacity	27 L

Summary

Inverter Power Supply Warnings

Inverter Warnings

Warnings regarding high voltage and temperature hazards of the inverter.

Do Not Actions

Prohibitions for handling the inverter power supply to prevent shock and damage.

Schematic Diagrams

Schematic Diagram (NN-S453WF & NN-S553WF)

Schematic Diagram (NN-K593MF/K573/K543WF)

Operating Sequence Descriptions

Troubleshooting Cautions

Grounding Checks

Importance of proper grounding for the inverter power supply circuit.

Inverter Warnings

Warnings about high voltage and high temperature hazards in the inverter circuit.

Preventing Microwave Leakage

Instructions to avoid inserting objects that can cause microwave leakage.

Post-Repair Checks

Disassembly and Parts Replacement

Magnetron Replacement

Step-by-step procedure for replacing the magnetron assembly.

DPC & Membrane Key Board Replacement

Inverter Power Supply Replacement

Procedure for disassembling and replacing the inverter power supply unit.

Component Test Procedures

Latch Switch & Power Relay Testing

Magnetron Testing

Inverter Power Supply Testing

Procedures (Test 1 & Test 2) to determine if the inverter power supply is OK.

Measurements and Adjustments

Latch & Short Switch Adjustment

Microwave Output Measurement

Microwave Energy Leakage Measurement

Required Equipment

List of necessary equipment for measuring microwave leakage.

Leakage Measurement Procedure

Step-by-step guide for measuring microwave radiation leakage.

Measurement Methods

Record Keeping

Troubleshooting Guide

Oven Stops During Cooking

Inverter and Magnetron Troubleshooting

Diagnosing issues with inverter circuit and magnetron using failure codes.

Digital Programmer Circuit Troubleshooting

Semiconductor Testing with OHM Meter

Parts List

Digital Programmer Circuit Schematic (NN-S453WF/S553WF)

Digital Programmer Circuit Schematic (NN-K593MF)

Digital Programmer Circuit Schematic (NN-K573/K543WF)

Digital Programmer Circuit Parts List (Except NN-K593MF)

Digital Programmer Circuit Parts List (NN-K593MF)