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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Subject:
Panasonic NN-S563WF S/N: 6B43180461 Mfr Date: April 2003 Problem: The platter motor buzzes or vibrates (no visual motion) and the interior light has a very faint glow when the unit is in idle. Otherwise the microwave works fine. In checking a few components, I found what appears to be an encapsulated wirewound resistor under the main transformer that tests open. I know someone else on here tried testing the high voltage diodes unsuccessfully as they seem to require a high forward bias voltage. However, since the microwave works, I don't think there is a problem with the diodes. Does anyone have a schematic? What is the component under the transformer? I would like to avoid replacing the whole board as that seems such a waste. I really hate the way electronics have become "disposable". Has anyone come across this "vibrating/buzzing motor" problem? Bruce |
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Welcome to low end...so called state of the art electronics! All this
is normal for this unit! Look he http://www.recommendedbuys.com/home-...rp-r-510hk.htm Bruce H wrote: Subject: Panasonic NN-S563WF S/N: 6B43180461 Mfr Date: April 2003 Problem: The platter motor buzzes or vibrates (no visual motion) and the interior light has a very faint glow when the unit is in idle. Otherwise the microwave works fine. In checking a few components, I found what appears to be an encapsulated wirewound resistor under the main transformer that tests open. I know someone else on here tried testing the high voltage diodes unsuccessfully as they seem to require a high forward bias voltage. However, since the microwave works, I don't think there is a problem with the diodes. Does anyone have a schematic? What is the component under the transformer? I would like to avoid replacing the whole board as that seems such a waste. I really hate the way electronics have become "disposable". Has anyone come across this "vibrating/buzzing motor" problem? Bruce |
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