Panasonic NN-V659WB User Manual

ORDER NO. MOP9905005C2
© 1999 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
Service Manual
Microwave Oven
NN-V659WB
NN-V659CB
NN-V659FB
NN-V629MB
NN-V689WB
Specifications:
Power Source: 240 V AC Sin
g
le Phase, 50 Hz
Power Requirements: Microwave: 1280W, Grill: 1360W, Maximum: 2580W
Output: (IEC705-88) 900W
Microwave Frequenc
y
: 2,450Mhz
Timer: 99 min. 99 sec.
Oven Cavit
y
Size: 27L
Outside Dimensions: 510mm (W) X 380mm (D) X 304mm (H)
Inside Dimensions: 359mm (W) X 352mm (D) X 217mm (H)
Wei
g
ht: 13 K
g
Inverter Power Suppl
y
Output power: IEC705-88 Test procedure
Specifications subject to chan
g
e without notice

Panasonic NN-V659WB Specifications

General

Type	Microwave Oven
Color	White
Turntable	Yes
Preset Programs	Yes
Child Lock	Yes
Auto Cook	Yes
Defrost Function	Yes
Keep Warm Function	Yes
Power Output	1000W
Microwave Power	1000W
Cooking Modes	Microwave, Grill

Summary

Inverter High Voltage Dangers and Warnings

Inverter Warning New H.V.

Crucial warnings about high voltage and heat risks associated with the inverter.

1. Control Panels

2. Operation and Digital Programmer Circuit Test Procedure

3. Schematic Diagram

4. Description of Operating Sequence

4.1 Variable Power Cooking Control

4.4 Autoweight Defrost, Autoweight Cook

5. Cautions to be Observed When Troubleshooting

5.1 Check the Grounding

Importance of proper grounding for safe operation and repair.

5.2 Inverter Warnings

Specific safety precautions for the high-voltage inverter circuit.

5.6 Confirm After Repair

6. Disassembly and Parts Replacement Procedure

6.1 Magnetron

6.2 Inverter Power Supply(U)

Procedure for replacing the high-voltage inverter unit.

6.3 Digital Programmer Circuit (DPC) and Membrane Key Board

7. Component Test Procedure

7.1 Primary Latch Switch, Secondary Interlocks

7.2 Short Switch & Monitor Circuit

7.5 Inverter Power Supply (U)

7.6 Inverter Power Supply(U) New H.V.

8. Measurements and Adjustments

8.1 Installation of Primary Latch Switch, Secondary Latch Switch and Short Switch

8.2 Measurement of Microwave Output

Procedure for measuring microwave output power.

9. Troubleshooting Guide New H.V.

Troubleshooting of Inverter Circuit and Magnetron

Alternative Troubleshooting with AC Ampere Meter

Trouble Related to Digital Programmer Circuit

How to Check the Semiconductors Using an OHM Meter

10. Exploded View and Parts List

11. Parts Lists

12. Door Assembly

16. Digital Programmer Circuit

17. Digital Programmer Circuit - Parts List