Hey all,
I'm trying to clean up a water damaged PCB and some of the chips are like this. Besides scrubbing with IPA is there anything else that might clean this up?
What to do with water damage
Re: What to do with water damage
Fibreglass pen to get rid of as much rust as possible then tin as many places as you can?
Flush whole area afterwards with IPA to get rid of rust dust.
BW
Flush whole area afterwards with IPA to get rid of rust dust.
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
Re: What to do with water damage
Some of those Vias look like they might be a problem too, so might be worth tinning and metering out?
If it ain't broke, test it to Destruction.
- rubber_jonnie
- Site Admin
- Posts: 10623
- Joined: Thu Aug 17, 2017 7:40 pm
- Location: Essex
- Contact:
Re: What to do with water damage
The problem is not just what you can see, but what is underneath.
Fibreglass pens are great for this sort of thing, but you may want to try vinegar first followed by the pen.
If you don't get any joy it may be that there is corrosion underneath and you'll need to lift the chip to see if more repairs are needed.
If you can clean up with the FGpen, then perhaps consider clear lacquer afterwards to seal it and prevent further corrosion.
Fibreglass pens are great for this sort of thing, but you may want to try vinegar first followed by the pen.
If you don't get any joy it may be that there is corrosion underneath and you'll need to lift the chip to see if more repairs are needed.
If you can clean up with the FGpen, then perhaps consider clear lacquer afterwards to seal it and prevent further corrosion.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: What to do with water damage
Careful cleaning with baking soda then it a ultrasonic clean i agree the chips may have to come off for pin repair or replacement and trace repairs
Tom
Tom
Re: What to do with water damage
cheers for the advice guys, much appreciated.
- arkadiusz.makarenko
- Moderator Team
- Posts: 1208
- Joined: Wed Jun 19, 2019 7:36 am
- Location: Edinburgh
Re: What to do with water damage
This chip might need to be lifted yo see what is under it.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
~ Stanislaw Lem