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#1 |
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Senior Member
Join Date: Jan 2010
City & State: Tromsų
My Country: Norway
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 186
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Hi
I found a 4300 yesterday that had non working lan and wan ports, the wireless works perfect and there are no problems logging on to it and upgrading firmware. However the lanports never woke up so I took it apart and saw 2 caps that are blown. ![]() The caps on the left are ok but the two on the right are blown. ![]() Close up of the two blown caps. I guess by soldering off one on the left side and measuing it and ordering two new ones I can maybe fix this router. However I don't understand why they have caps from ground to ground ! I'm not very good at understanding circuits,are you ? Can I put a wire over the two blown ones to test lan/wan ports or will this for sure damage the box ? Gab |
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#2 |
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Badcaps Veteran
Join Date: Dec 2009
City & State: Europe
Posts: 1,945
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it's to block dc current - they are probably .1uf
and they blew because of an earthing fault / current loop between the devices connected to it. |
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#3 |
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Super Moderator
Join Date: Nov 2003
City & State: dayton ohio
Posts: 6,433
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#4 |
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Senior Member
Join Date: Jan 2010
City & State: Tromsų
My Country: Norway
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 186
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Have not been able to fix this yet, replaced the ip101 ethernet transceiver but still no go sadly.
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