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NFG Forums => SIG X68000 => Topic started by: costa on February 09, 2015, 06:30:21 AM

Title: Damaged traces
Post by: costa on February 09, 2015, 06:30:21 AM
Hi Guys.

Do you think this board can be saved?
https://drive.google.com/file/d/0B4auKr51--KWY2dKUkNqbWZpdjA/view?usp=sharing
Title: Re: Damaged traces
Post by: emerald danjon on February 09, 2015, 07:43:17 AM
Hi,Rewire...,
just be sure where the trace go...and rewire...,look for the most fine cable.
Title: Re: Damaged traces
Post by: eidis on February 09, 2015, 08:53:11 AM
 Hi Costa !

Of course it can be saved. Carefully scrape off the corrosion with a tiny flat head screwdriver, wash off the residue with isopropyl alcohol and put some fresh solder on the exposed and cleaned traces. Once finished, test for continuity. If everything is good, you can even apply nail varnish over the repaired area to make it even more corrosion proof.

P.S. There will be times when you will want to repair something more fragile, let's say a keyboard membrane. In such cases conductive glue should be used.

Conductive Glue Wire Electrically Paste Adhesive Paint PCB Repair 0.2ML Silver G
http://www.ebay.com/itm/Conductive-Glue-Wire-Electrically-Paste-Adhesive-Paint-PCB-Repair-0-2ML-Silver-G-/350967787926?pt=LH_DefaultDomain_2&hash=item51b74f7196 (http://www.ebay.com/itm/Conductive-Glue-Wire-Electrically-Paste-Adhesive-Paint-PCB-Repair-0-2ML-Silver-G-/350967787926?pt=LH_DefaultDomain_2&hash=item51b74f7196)

Keep the scene alive !
Eidis
Title: Re: Damaged traces
Post by: costa on February 10, 2015, 06:24:35 AM
The two wide traces under the battery wires are easy.

I am really concerned about the bus that run just below the blue wire to the central CI.
I have tested already for continuity and several of them are bad.

... and they are really thin!
Title: Re: Damaged traces
Post by: eidis on February 11, 2015, 05:59:09 AM
 Hi Costa !

The same principle applies to tiny traces as well. Only this time you will need a digital microscope.

USB Digital Microscope 50X-500X Zoom Magnifier Handheld 2.0 MP Video Camera
http://www.ebay.com/itm/USB-Digital-Microscope-50X-500X-Zoom-Magnifier-Handheld-2-0-MP-Video-Camera-/221315062261?pt=LH_DefaultDomain_15&hash=item338767d9f5 (http://www.ebay.com/itm/USB-Digital-Microscope-50X-500X-Zoom-Magnifier-Handheld-2-0-MP-Video-Camera-/221315062261?pt=LH_DefaultDomain_15&hash=item338767d9f5)

Keep the scene alive !
Eidis
Title: Re: Damaged traces
Post by: costa on February 11, 2015, 09:27:31 AM
I got that one already!
:)

Let´s see, hope I don´t have to do that.