Forum: General Electronics Technical Discussion
Yesterday, 03:01 PM
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Replies: 13
Views: 1,764
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Forum: General Computer & Tech Discussion
Yesterday, 08:31 AM
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Replies: 5
Views: 228
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Forum: Troubleshooting Game Consoles & Other Weird Devices
02-27-2021, 04:18 PM
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Replies: 6
Views: 390
Re: Xbox One dead LAN IC
it contains several 1:1 isolation transformers and sometimes some ceramic caps and/or resistors.
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Forum: Troubleshooting Game Consoles & Other Weird Devices
02-27-2021, 11:37 AM
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Replies: 6
Views: 390
Re: Xbox One dead LAN IC
nice!
that's a magjack, the transformer has arced and burned up.
probably from lightning.
you need to remove it, and check all the small resistors.
and the inductor.
everything in the area...
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Forum: General Electronics Technical Discussion
02-27-2021, 07:46 AM
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Replies: 10
Views: 231
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Forum: Troubleshooting Audio Equipment
02-27-2021, 07:32 AM
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Replies: 3
Views: 1,299
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Forum: General Electronics Technical Discussion
02-26-2021, 08:45 PM
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Replies: 10
Views: 231
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Forum: Troubleshooting Power Supplies and Power Supply Design
02-25-2021, 01:17 PM
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Replies: 2
Views: 118
Re: Ultra 350w ATX Power Supply
not arc'ing, that's conductive glue - glue that got old and went very dark and then burns
you need to chip off all brown glue - then do the caps
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Forum: General Electronics Technical Discussion
02-25-2021, 01:09 PM
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Replies: 16
Views: 338
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Forum: General Electronics Technical Discussion
02-25-2021, 10:08 AM
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Replies: 47
Views: 790
Re: Oscilliscopes
do you get the spikes without any probes?
btw, try to find the cause - it will effect other stuff like radio.
i suspect it's a low current psu - like an led lamp.
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Forum: Troubleshooting Game Consoles & Other Weird Devices
02-25-2021, 03:34 AM
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Replies: 9
Views: 3,972
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Forum: General Electronics Technical Discussion
02-24-2021, 07:01 PM
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Replies: 8
Views: 180
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Forum: General Electronics Technical Discussion
02-24-2021, 02:31 PM
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Replies: 5
Views: 112
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Forum: General Electronics Technical Discussion
02-24-2021, 10:52 AM
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Replies: 47
Views: 790
Re: Oscilliscopes
well if you think it's a problem, go ask tautech i think he's called, on eevblog.
he's a siglent rep
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Forum: General Electronics Technical Discussion
02-24-2021, 10:48 AM
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Replies: 29
Views: 403
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Forum: Equipment Usage, Soldering, Techniques, and Reviews
02-24-2021, 10:41 AM
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Replies: 4
Views: 1,547
Re: Any good discount electric desoldering pumps?
filters are a robbery, you can make your own better ones.
that said, thereare a number of threads here about "upgrades".
from changing the fan and it's power, to making filter discs, to adding an...
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Forum: Equipment Usage, Soldering, Techniques, and Reviews
02-23-2021, 09:25 AM
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Replies: 4
Views: 1,547
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Forum: General Capacitor Questions & Issues
02-23-2021, 04:57 AM
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Replies: 5
Views: 271
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