Panasonic NN-SG676B CTH User Manual

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Microwave Oven

Model No.

© Panasonic Corporation 2012 Unauthorized

copying and distribution is a violation of law

NN-ST342M

Order No. MOD12 0837 8C E

25L

s

Power Requirement

Power Output

Microwave Frequency

Magnetron

Timer

Outside Dimensions

Cavity Dimensions

Net Weight

Shipping weight

Specifications subject to change without notice.

1,270 Watts (5.

Single phase, 3 wire grounded

2,450 MHz

2M219J

Volts AC 50 60Hz

220

800 Watts full microwave power (IEC60705)

0 ~ 99 min. and 50 sec.

1,270 Watts (10.

Single phase, 3 wire grounded

Volts AC 60 Hz

NN-ST342M(RPM)

NN-ST342M(RPH)

9A

)

12.7kg (approx.)

13.7 kg (approx.)

4 (W) x (H) x 400(D) mm

85 287

315(W) x 227(H) x 349 (D) mm

Silver

&

120

3 A)

(50Hz)

/(6.2A(60Hz))

Latin America

Questions and Answers:

H
hcoffeyAug 8, 2025
Why my Panasonic NN-SG676B CTH Microwave Oven does not work?
- A
  Amanda FrankAug 8, 2025
  If your Panasonic Microwave Oven isn't working, it might be due to overloading the outlet by using too many appliances at once. To resolve this, avoid using other electrical appliances while the microwave is in operation. Also, ensure the microwave plug is securely inserted into the outlet. Low AC input voltage can also cause this issue, so ensure you are using the microwave at an adequate line voltage. If the food temperature is too low, it may simply require a longer cooking time.
A
Anna BartonAug 13, 2025
What to do if Panasonic Microwave Oven is sparking?
- E
  Emily RobertsAug 13, 2025
  Sparks inside your Panasonic Microwave Oven are often caused by using metallic ware or allowing it to touch the oven wall. Avoid using metallic ware for cooking, unless specifically noted in the cooking guide. Another cause could be ceramic ware trimmed with gold or silver powder. Do not use any cookware with metallic trimming.
M
matthewmendezAug 20, 2025
Why is the output power low on my Panasonic NN-SG676B CTH?
- R
  Rachel RitterAug 20, 2025
  If your Panasonic Microwave Oven seems to be operating but the output power is low, it could be due to several reasons. If the power source voltage is lower than 90%, you should contact your local electric power utility company or a qualified electrician. Other potential causes include a shorted contact at the primary switch (which would require replacing the primary and monitor switches), a defective P.C.B assembly (requiring replacement), or a defective magnetron (also requiring replacement).
T
Thomas DeckerAug 27, 2025
What to do if Panasonic NN-SG676B CTH display works but doesn't start?
- A
  Amanda BellAug 27, 2025
  If the display of your Panasonic Microwave Oven shows all figures set, but the oven does not start cooking when the START pad is touched, and the setting time does not count down, the secondary switch may need to be replaced. Also, if the fan motor or oven lamp do not turn on, the fan motor should be replaced.
R
Randall RiddleSep 1, 2025
How to fix no microwave oscillation in Panasonic NN-SG676B CTH Microwave Oven?
- Z
  zkhanSep 2, 2025
  If your Panasonic Microwave Oven's oven lamp and fan motor are running, and the display operates properly, but there's no microwave oscillation, this could be due to a defective P.C.B assembly, a defective high voltage capacitor, a defective high voltage transformer, a defective magnetron, or a defective high voltage diode. Each of these issues would require replacing the respective component.

Panasonic NN-SG676B CTH Specifications

General

Power Output	1000 W
Capacity	1.3 cu. ft.
Control Type	Electronic
Turntable Diameter	12.4 inches
Weight	27.3 lbs
Microwave Power	1000 W
Turntable	Yes
Color	Black
Sensor Cooking	Yes
Inverter Technology	Yes
Child Lock	Yes
Pre-Programmed Settings	Yes
Type	Countertop
Dimensions (H x W x D)	25.2 x 44.5 x 34.4 cm
Exterior Dimensions	25.2 x 44.5 x 34.4 cm

Summary

Microwave Oven Specifications

Safety Precautions

Servicing Safety Precautions

Detailed safety measures to prevent exposure to excessive microwave energy during servicing.

Installation and Grounding

Installation Procedure

Step-by-step instructions for physically placing and setting up the microwave oven.

Earthing Instructions

Guidance on properly grounding the microwave oven for safe operation.

Operating Instructions

Oven Features Overview

Overview of the microwave oven's key features and capabilities.

Control Panel Functions

Description of the layout and functions of the microwave's control panel.

Basic Operating Sequence

Step-by-step guide on how to perform basic cooking operations.

Service Information

Tools and Measuring Instruments

List of necessary tools and measuring devices for servicing the microwave oven.

Microwave Leakage Testing

Procedures and precautions for testing microwave radiation leakage from the oven.

Measuring Microwave Energy Leakage

Detailed methodology for measuring microwave energy leakage levels.

Troubleshooting Guide

Troubleshooting Cautions

Important warnings and safety considerations before troubleshooting the microwave oven.

Exploded View Diagrams

Exploded View Introduction

An introduction to the exploded view diagrams showing oven components.

Replacement Parts List

PCB Schematic Diagram

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