Table of Contents
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Specifications
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
230 Volts AC 50 Hz
Microwave
Grill
Combi
Single phase, 3 wire grounded
800 Watts full microwave power (IEC60705)
2450 MHz
2M167B - M47J1
0 ~ 90 min.
455 (W) x 260 (H) x 325 (D) mm
315 (W) x 184 (H) x 294 (D) mm
11.5 kg (approx.)
12.5 kg (approx.)
Specifications subject to change without notice.
NN-J155WB EPG
NN-J125MB EPG
NN-J155WB WPG
NN-J125MB WPG
1100 Watts
1000 Watts
2050 Watts
© 2005 Matsushita Electric (UK)Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
P/NO : 3828W5S5183
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Table of Contents
Related Manuals for Panasonic NN-J125MB EPG
Summarization of Contents
Safety Precautions
Precautions for Microwave Energy Exposure
Guidelines for avoiding exposure to excessive microwave energy during servicing.
Microwave Radiation Warning
Cautionary notice regarding potential exposure to microwave radiation.
Cautions
High-Voltage Equipment Warning
Advisories regarding handling high-voltage and high-current microwave oven components.
Installations
Earthing Instructions
Important information on properly earthing the microwave oven before use or servicing.
Operating Instructions
Features Overview
Description of the microwave oven's key features and components.
Control Panel Layout
Identification and function of buttons and display elements on the control panel.
Operating Sequence
Setting the Clock
Procedure for setting the 24-hour clock on the microwave oven.
Cancel Function
How to cancel an entry or function currently in use.
Microwave Cooking Sequence
Steps for operating the microwave cooking function.
Grill Cooking Sequence
Steps for operating the grill cooking function.
Combi Cooking Sequence
Steps for operating the combination cooking function.
Multi-Stage Cooking
Instructions for multi-stage microwave cooking.
Auto Defrost Cooking
Procedure for using the auto defrost function.
Child Lock Feature
How to set and cancel the child lock feature.
Auto Cook Function
Steps for using the auto cook function.
Circuit Description
General Circuit Details
Overview of the low voltage transformer and micom controller supply.
Cooking Power and Time Selection
How the micom controller handles cooking settings and time.
Start Pad Operation
Description of relay energization and power input for starting operation.
Door Opening During Cooking
Effects of door opening on switches, relays, and magnetron operation.
Oven Operation at Levels Below Maximum
How the micom controls power levels using relay 2.
Grill Cooking Circuit
Circuit path for grill heating when the start key is pressed.
Service Information
Tools and Measuring Instruments
List of necessary tools and measuring instruments for servicing.
Microwave Leakage Test
Guidelines and cautions for performing microwave leakage tests.
Microwave Leakage Measurement
Measurement with Outer Case Removed
Procedure for measuring leakage with the outer case off.
Measurement with Fully Assembled Oven
Procedure for measuring leakage on a complete oven assembly.
Measurement Notes and Record Keeping
Important notes for accurate measurement and record-keeping.
Measurement of Microwave Power Output
Primary Interlock Switch Test
Testing the primary interlock switch continuity and operation.
Secondary Interlock Switch Test
Testing the secondary interlock switch continuity and operation.
Monitor Switch Test
Testing the monitor switch continuity and operation.
Disassembly and Adjustment
Outer Case Removal
Steps for safely removing the outer case of the microwave oven.
Power Supply Cord Removal
Procedure for disconnecting and removing the power supply cord.
Control Panel Assembly
Steps for removing the control panel assembly from the oven.
Door Gross Assembly Removal
How to carefully remove the door assembly from the oven.
High Voltage Transformer Removal
Procedure for removing the high voltage transformer.
Fan Motor Assembly Removal
Steps for removing the fan motor assembly.
High Voltage Capacitor and Diode Removal
Procedure for removing the HV capacitor and diode.
Air Duct Assembly Removal
Steps for removing the air duct assembly.
Magnetron Removal
Procedure for safely removing the magnetron, with important notes.
Turntable Motor Removal
Steps for removing the turntable motor, with careful handling notes.
PCB Assembly Removal
Procedure for removing the Printed Circuit Board assembly.
Interlock System
Details on the door lock mechanism and switch installation.
Component Test Procedure
High Voltage Transformer Test
Testing the resistance of the high voltage transformer.
Magnetron Test
Testing the resistance of the magnetron.
High Voltage Capacitor Test
Testing the resistance and charge/discharge behavior of the HV capacitor.
High Voltage Diode Test
Testing the continuity of the high voltage diode in forward and reverse.
Fuse Test
Checking the continuity of the main and HV fuses.
Heater Element Test
Measuring resistance and insulation of the heater element.
Thermostat Tests
Testing grill, oven, and magnetron thermostats for operation.
PCB Connector and Relay Tests
Checking continuity of PCB connector and relays.
Fan Motor and Turntable Motor Tests
Measuring resistance of fan and turntable motors.
Troubleshooting
Microwave Oven Does Not Work
Diagnosing and resolving issues when the oven is unresponsive.
Low Output Power
Troubleshooting causes for reduced microwave power output.
Sparks Occurring
Identifying and fixing causes of sparking inside the oven.
Uneven Cooking
Addressing issues with inconsistent cooking results.
Turntable Dragging or Noise
Resolving problems with the turntable's movement.
Control Circuit Issues (Visual Indicators)
Identifying probable defective control circuits based on display anomalies.
No Input Programming
Troubleshooting when the oven does not accept programmed inputs.
Display Shows Incorrect Figures
Diagnosing issues where the display shows incorrect numbers or figures.
Oven Not Operating (Fuse Blows)
Troubleshooting when the oven fails to operate due to blown fuses.
Oven Not Operating (Fuse Intact)
Diagnosing failure to operate when fuses are intact.
Oven Not Starting After Program Set
Resolving issues where the oven doesn't start after setting programs.
Fan Motor or Oven Lamp Not Turning On
Troubleshooting when the fan motor or oven lamp fails to operate.
Low Heat Production
Diagnosing low heat output during oven operation.
No Microwave Oscillation
Troubleshooting lack of microwave oscillation with other functions active.
Improper Power Level Cooking
Resolving issues with incorrect power level operation.
Grill Not Operating
Troubleshooting when the grill function is not working.
Exploded View
Introduction to Exploded Views
Overview of the exploded view diagrams for parts identification.
Door Parts Identification
Visual identification of components within the door assembly.
Control Panel Parts Identification
Visual identification of components within the control panel assembly.
Oven Cavity Parts Identification
Visual identification of components within the main oven cavity.
Latch Board Parts Identification
Visual identification of components on the latch board.
Interior Parts Identification
Visual identification of internal components of the oven.
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