[SOLVED] How to clean the corroded contact pads on the hard drive pcb?

invinci

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Aug 2, 2011
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I took out the PCB of one of my hard drive which is not getting detected just to check whether there's any burned caps or chip and I found some corrosion/rust on the contact pads which makes the contacts with hard drive. I have uploaded the picture for the reference. How can I clean the corrosion/rust from the pads shown in red marked area? A little help would be great. Thanks.


 

invinci

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Aug 2, 2011
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Use a soft pencil eraser or a cotton bud dipped in isopropyl alcohol. Don't scrub too hard -- it is possible to overdo it and remove the gold plating.
Thanks for replying. I cleaned with eraser as well as with a isopropyl alcohol but the contact points are still dark in color like they are permanently corroded/rusted. Should I add soldering on them? Will it improve the contacts?
 

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