Panasonic NE-3280 Service Manual

© 2001 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
NE-3280
NE-3240
NE-2180
NE-2140
Microwave Oven
ORDER NO. MOD0108245C2

Panasonic NE-3280 Specifications

General

Type	Commercial Microwave Oven
Control Type	Digital
Cooking Stages	3
Turntable	Yes
Frequency	2450 MHz
Color	Stainless Steel

Summary

Specifications

2 OPERATION PROCEDURE (NE-3280/2180)

3 OPERATION PROCEDURE (NE-3240/2140)

4 SCHEMATIC DIAGRAM NE-3280

5 SCHEMATIC DIAGRAM NE-3240

6 SCHEMATIC DIAGRAM NE-2180

7 SCHEMATIC DIAGRAM NE-2140

8 WIRING DIAGRAM NE-3280

9 WIRING DIAGRAM NE-3240

10 WIRING DIAGRAM NE-2180

11 WIRING DIAGRAM NE-2140

13 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING

Earthing Checks

Importance of proper earthing for safe microwave oven operation and repair.

Door Malfunction Precautions

Warnings and confirmations required before operating an oven with door issues.

High Voltage Capacitor Safety

Procedures for safely discharging the high voltage capacitor after power is off.

14 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE

Magnetron Replacement

Step-by-step guide for removing and replacing magnetrons.

Digital Programmer Circuit Board Replacement

Low Voltage Transformer and Power Relays Replacement

15 COMPONENT TEST PROCEDURE

High Voltage Transformer Testing

High Voltage Capacitor Testing

Magnetron Testing

Diode Testing

Membrane Keyboard Testing

Protector Diode Testing

16 MEASUREMENTS AND ADJUSTMENTS

Safety Switch B Adjustment

Short Switch Adjustment

Safety Switch A Adjustment

Microwave Output Measurement

Procedure for measuring microwave output using a beaker and thermometer.

17 TROUBLESHOOTING GUIDE

General Troubleshooting Precautions

Safety and general checks before troubleshooting the unit.

Troubleshooting Display Codes

Lists display codes, conditions, and potential causes for failures.

24 DIGITAL PROGRAMMER CIRCUIT