Panasonic NN-GF668M User Manual

© 2008 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
NN-GF668M
EPG (Continental Europe)
SPG (Norway, Finland, Sweden, Denmark)
Microwave Oven
ORDER NO.PHAMO0806026C2

Panasonic NN-GF668M Specifications

General

Grill Power	1000 W
Control Type	Touch Control
Cooking Modes	Microwave, Grill, Combination
Voltage	230 V
Frequency	50 Hz
Type	Microwave Oven with Grill
Capacity	23 L

Summary

General Safety and Cautions

High Voltage and Temperature Dangers

Control Panel Overview

Operating Sequence Descriptions

Inverter Power Supply Circuit Operation

Details the circuit supplying 4000V DC to the magnetron tube, replacing H.V. transformer.

Troubleshooting Cautions

Grounding and Inverter Warnings

Emphasizes proper grounding and highlights dangers of high voltage/temperature in the inverter supply.

Fuse Blow and Foreign Object Warnings

Disassembly and Parts Replacement Procedures

High Voltage Inverter Replacement

Component Test Procedures

Magnetron Continuity Check

Inverter Power Supply Test

Troubleshooting Guide

Self-Diagnostic Display and Error Codes

How to access self-diagnostic results and a list of error codes with causes.

Oven Stops Operation Troubleshooting

Troubleshooting steps for oven stopping after 3 or 23 seconds, or no display.

Other Troubleshooting Problems

Covers issues like dead oven, no key input, fan motor issues, timer problems, low output, etc.

Inverter and Magnetron Troubleshooting

Diagnosing issues related to H95, H97, H98, H99 error codes involving inverter and magnetron.

Digital Programmer Circuit Troubleshooting

Steps to diagnose problems related to the Digital Programmer Circuit.

Simple Inverter/Magnetron Troubleshooting

A quick method using an ammeter to identify magnetron or inverter issues.