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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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Skytronics 600W mains inverter
Hi,
Has anybody tried to repair one of these units or has a circuit diagram available? I bought a blown one to see if I could repair it. As expected all the Mosfets were destroyed but I'm hoping that is the extent of the damage, barring the odd 10ohm resistor. Switching on with approx 30 UK pounds worth of new Mosfets ready to up in smoke makes me nervous. Any thoughts..... Cheers Bob |
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Skytronics 600W mains inverter
Thanks for the replies guys.
That is a good point about the parallel connections, at least it then becomes a damage limitation exercise. I intend to start it without a load and a very low power 12v supply as it draws under 1A in idle mode. Hopefully this will show up anything that's going to cause instant failure. The problem arises when the loading goes up so it's probably then a case of keeping the fingers well and truely crossed!! "James Sweet" wrote in message news:khqTa.112512$GL4.28405@rwcrnsc53... Aren't the mosfets in two groups wired in parallel? If so you should be able to replace a few of them and power it up with only a small load on it. "Bob" wrote in message m... Hi, Has anybody tried to repair one of these units or has a circuit diagram available? I bought a blown one to see if I could repair it. As expected all the Mosfets were destroyed but I'm hoping that is the extent of the damage, barring the odd 10ohm resistor. Switching on with approx 30 UK pounds worth of new Mosfets ready to up in smoke makes me nervous. Any thoughts..... Cheers Bob |
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