Electronics > Repair
Golden poker double up arcade machine schematic
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poot36:
Tag + bottom PCB.
poot36:
Top of PCB.  Got any ideas of the best way to clean all the cigarette smoke and tar off all of this with out damaging the components?
chris_leyson:
IPA maybe, lots of it and kitchen rolls, cotton buds and a lot of patience. Good luck
james_s:
I usually run them through the dishwasher, use only about 1/6 the usual amount of detergent though. Other things I'll put them in the sink, spray them with Oil Eater and then gently scrub with a soft bristled brush, rinse thoroughly with hot water and then set it out to dry for a few days. If I'm in a hurry I'll follow up the rinse with a rinse in alcohol which rinses off the water then evaporates quickly. If you have minerals in your tap water then a final rinse in distilled water would be a good idea but I don't have that problem here. Try to avoid getting water into the focus/screen pots as those take the longest to dry out if they get damp.
poot36:
I tried washing it in the sink with just hot water and abound 90% of the crud came off.  If I really care I could take the garden hose sprayer to it when the weather warms up.  The metal parts are still somewhat stained brown but that I don't care that much about.  I at least can now read the values on the components.  The one cap that I think will be hard to find is the 10uF 35V nonpolar that is in the horizontal output section but other than that I think all the other electrolytic's are low voltage types as this monitor only runs off 13.2V AC that is half wave rectified from two taps on the transformer with a center tap that is grounded.
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