root/2014-synth/ - 40 file(s) 日本語
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rating : 2.8 with 28 vote(s)
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From: Matt on 2014-07-02 18:11:52
I had a hard time desoldering the sockets, mostly because the pins attached to ground (one contact and two shield tabs per socket) are connected to the ground plane on both sides of the board with no thermal relief and the copper ground planes suck the heat right out of the joint. It's nearly impossible to melt those joints with a low-power hand soldering iron. The result was that I ended up dumping enough heat into some other contacts, like the one shown here, that I delaminated the pads and through-hole plating right off the board. After considering different ways of trying to fix this, I decided to just throw out the board and get a new one as nearly identical as possible; bear in mind this was a cheap USB hub to begin with.