Cleaning a pcb A1200

[Buleste]

Does Harrison have a beard at work?

OMG I've just realised why Submeg has a nomination in POTM if you look at the photo he posted of himself in the "Sad Day" thread he has a beard (albeit a poor one)!!!

[JLPedro]

So the dishwasher is a NO GO... don't really know were i got the idea in the first place (by the way i was refearing to the motherboard and not the case). So i will use the brush type of cleaning , Or maybe i ill start the job on my CBM 1084s D1, it is waiting for some really in dept cleaning and painting mayking it look like new (been dreaming to do this for some time now) it will pair perfectly my recently painted A600!

[Harrison]

A can of compressed air is always good for cleaning motherboards and expansion cards. You can often blow most of the dirt and dust from them without harming anything.

And also as already mentioned, some Isopropyl alcohol and a small brush, or cotton buds are OK as the alcohol evaporates very quickly and won't damage anything. I tend to use a can of car carburettor cleaner as it is basically the same thing, and a big can of that is quite inexpensive and lasts a very long time. I've had a can for a couple of years now and it is still nearly full. Very useful for cleaning old thermal paste from CPUs, the lenses of CD/DVD players, electrical components and PCBs, floppy disk drive heads, the contact pins in game cartridges or PCI cards etc.

[Stephen Coates]

I've had my A500+ case in the dishwasher. Made it a bit cleaner but didn't remove any yellowing.

Usually for cleaning the insides of computers I just use the hoover. Speaking of dust, I know my PC is very dusty (again).

[Buleste]

Yellowing is due to the photosensitive nature of the plastic used. No amount of cleaning will ever get rid of it as it's the plastic itself that has changed its chemical composition slightly.

[v85rawdeal]

I've had my A500+ case in the dishwasher. Made it a bit cleaner but didn't remove any yellowing.

Usually for cleaning the insides of computers I just use the hoover. Speaking of dust, I know my PC is very dusty (again).

You guys said Dishwasher...

That explains why I need to buy a new washing machine!!!

[Zetr0]

The only REAL way to get rid of the yellowing is to use an Acetone Bath.

Place chassis in dish washer (gets rid of grime, grease and opens the plastic up)

make a shallow bath (enough to cover the item) of Acetone then gently dip the component a couple of times in it.... then rinse in a shallow bath of water again gently dipping it..... repeat as nessasary

DO THIS SLOWLY

will say.... acetone disolves plasitc... so if you do use this method, for the love of god DONT rub the plastic in anyway... just submerg and retract a couple of times, then rinse in a bath of water, all this in gentle movement. (no side to side motion just in then out...

eventually the yellow will be removed.... once thats done allow a final wash of water then place in dish washer on a cool 30/40c wash. (NOT INTENSIVE)

once complete... use a matt acrylic laqure / varnish, spray gently, each coat in long arcs repeat only when its dry.. around 3 coats is more than enough... (make sure you leave enough time for each coat to FULLY dry) sometimes its best to just leave it a day if one has to!