Panasonic NN-ST677M User Manual

© 2007 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
NN-ST657S
NN-ST677M
NN-ST667W
NN-ST657W
QPQ(Australia & New Zealand)
Microwave Oven
Please file and use this manual together with the service manual for Model NN-S560WF (ORDER NO.
SIMMC0006012C3)
ORDER NO.PHAMOS0706032A3

Panasonic NN-ST677M Specifications

General

Brand	Panasonic
Model	NN-ST677M
Category	Microwave Oven
Language	English

Summary

Schematic Diagram

Cautions to be Observed When Troubleshooting

Grounding Checks

Inverter High Voltage Warnings

Detailed warnings about high voltage and temperature hazards within the inverter power supply.

Troubleshooting Guide

Oven Stops During Cooking Troubleshooting

Identifies causes and corrections for the oven stopping during cooking cycles.

General Troubleshooting of Other Problems

Lists various other symptoms and their potential causes and corrections.

Inverter and Magnetron Troubleshooting

Explains failure codes and troubleshooting steps for inverter circuit and magnetron.

Digital Programmer Circuit Troubleshooting

Details common problems and diagnostic steps for the digital programmer circuit.

Simplified Inverter/Magnetron Troubleshooting

A simplified method to identify issues between the magnetron and inverter.

Semiconductor Testing with Ohmmeter

Digital Programmer Circuit

Digital Programmer Circuit (NN-ST657S, ST657W)

Digital Programmer Circuit (NN-ST677M, ST667W)