Panasonic Inverter Microwave Oven Schematic request

Mar 06, 2011 3 Replies

Greetings,



I am experimenting with the inverter board from the Panasonic NN-H665BF microwave oven (part no. F66456G01AP) in an effort to convert it from constant power to constant voltage and reduce output noise, ripple, and voltage to 2kV. I have the schematic for a somewhat similar Panasonic oven, the NN-G62BH, but there are big differences, especially that my oven inverter uses only a single IGBT driver, has no current transformer and uses a very different control IC.



In a web forum, a poster mentioned having schematics for these ovens on a 'Panasonic Service Manual CD' but I have not found any other reference to this online.



Does anyone have a schematic or could point me to a source (the Panasonic website only shows 'Instruction Manuals' which are users' guides.)?



Hopefully I can save the many hours required to trace the PCB. Thanks,



Michael


have you looked insuide the covers for glued-on schematics??

They don't print schematics for microwaves. It's because most users don't want them repaired and if you don't know how a microwave works, then you have no business being inside of one.

Wouldn't that be nice? Those schematics painted on rice grains pasted on the insides of old Japanese radios actually were readable when scanned and resized to a practical size. Too bad that mfg'ers don't do that any more for the most part.

There is nothing at all on the inside of the cover or on the chassis...

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