MINI Naomi cabinet (UK only)

Discussion in 'Arcade and Supergun' started by Parris, Nov 19, 2008.

  1. Parris

    Parris I'm only here to observe...

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    My wife and I had to drag that son of a bitch 2 months ago into the kitchen. She let go of it at one point and we heard this almighty crack, which turned out to be my wrist. Hurt like hell for days!
     
  2. retro

    retro Resigned from mod duty 15 March 2018

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    Err, is it just me, or is there a ruddy great hole where there should be another grille??

    I wouldn't recommend using baby wipes. Yes, they might clean, but they contain a lot of stuff that will be left on your nice PCB as a film. Detergents, moisturizer, perfume and preservatives. Ingredients include:

    Water
    Sodium diamphoacetate
    coco phosphatidyl PG-dimonium chloride
    propylene glycol
    glycerine
    hydroxymethyl cellulose
    silicone
    methylparaben
    propylparaben

    If you want to use a product that is designed to leave behind a layer of moisturizer, perfume and preservatives on your boards, go ahead. However, I'd use proper cleaning tools and solvents as used by industry professionals. These include:

    compressed air
    isopropyl alcohol
    contact cleaner
    and various other cleaners / degreasers (e.g. ElectroWash, Safewash 2000)

    You can indeed get some of these in the form of wipes, which will be much like baby wipes but without the added crap you don't need!

    Take a look here if you want more info.

    As for washing-up liquid on the case... can't beat it! ;-) Those sponges you get for dishes work great, too - although err on the side of caution when thinking about using the scratchy side! For really stubbon dirt on vinyl cabs at least, I use Jif cream... sorry, I mean Cif :rolleyes:

    The best shine I ever got on an arcade cab was from using tyre polish! It's a purple liquid a bit like washing-up liquid in texture. You only need a VERY small amount - like pea-size for a whole cab! A word of warning, though - it makes the surface EXTREMELY slippery!!!
     
  3. Parris

    Parris I'm only here to observe...

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    It's the coin return slot.

    As for ingredients of the baby wipes, I've been using them on boards for 9 years now and not had a single board with either damage or unusual residue once cleaned. How many boards have I cleaned using them? Roughly 900 I'd say by now. Not had a single complaint.

    I also hasten to add that you use decent wipes and nothing too abrasive or poor quality.

    I also use compressed air and other cleaners depending on the job, but you simply cannot beat the cheap alternative.
    ;-)
     
    Last edited: Dec 22, 2008
  4. retro

    retro Resigned from mod duty 15 March 2018

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    Ahh, coin return, course!

    The cheap alternative to compressed air is a compressor! 100 quid and then it costs you NOTHING ;-)

    Incidentally, remember that propylene glycol I mentioned? Well, it has been known to cause skin rash, deafness, kidney damage and liver problems in scientific and animal studies. It damages cell membranes, leading to rashes, dry skin and surface damage.

    They're starting to replace it in some products, but I'd advise WATCHING OUT for that on the label if you are going to use those wipes on your kid! ;-)
     
  5. vectrex_rox

    vectrex_rox Enthusiastic Member

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    i cleaned my naomi cab with baby wipes ... realy good n easy goin ...

    but how would you clean a PCB with babywipe ??????? no way
     
  6. Parris

    Parris I'm only here to observe...

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    Yes way, it works so don't knock it! The PSU in the MINI Naomi was caked in gunk until I took wipes to it. Funnily enough I love the idea that certain 'residue' might be lift behind (which even if it is, has done NO damage in 9 years) given that the shit on the board in the first place is utterly disgusting, consists of this amazingly greasy material that kills electronics and fans if not cleaned off.

    Lesser of two evils? Evil greasy dust or some weird chemicals previously deemed sufficiently safe for babies butts...

    You choose!

    That said, I am sure the alternative method Retro suggested would be cool enough. I shall continue with wipes until I can be arsed to change.
     
    Last edited: Dec 22, 2008
  7. vectrex_rox

    vectrex_rox Enthusiastic Member

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    please how do you work around or "under" resistors, transistors, elkos and so own how do you work there with the wipes .. you have such small small baby fingers ? ;)
     
  8. Parris

    Parris I'm only here to observe...

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    I usually get something non conductive, place a wipe over the top of it and push the wipe, in, under, through or around the component, depending on how fragile it is and the amount of current it holds. I.e. don't ask me to wipe off the neck board of a monitor with anything containing ANY liquids, or using my fingers!!!!

    The only time I have ever come close to electrocuting myself was when I was taking a monitor to pieces and I wasn't terribly careful with the neck board. Actually I dropped it onto the monitor chassis and watched a massive electrical arc created across a couple of components. Suffice to say I jumped back quickly.

    I've also made the mistake of thinking a Sony PS2 PSU was sufficiently discharged and must have handled it incorrectly as my arm tingled.

    However, I have been taking electrical stuff to pieces since I was a kid and with only two such incidents I count myself lucky.

    A customer many years ago nearly killed me whilst replacing a PCB on his amplifier. I had taken the lid off the unit and gone through the back to get a different tool. Whilst I was away (1min max) he had plugged the unit in and stepped back. He never mentioned anything and I never checked (rule number 1, always check after you've walked away lol). I got a bit of a zap from that, but nothing major! Gave the customer a bollocking though. He was very sheepish and apologetic, but what a stupid thing to do.
     
    Last edited: Dec 24, 2008
  9. Parris

    Parris I'm only here to observe...

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    Finally finished the cabinet off with a frosted panel of plastic and 3 in-LEDs powered by a feed from the coin mechanism.

    It's not precisely what I wanted, but I found the space I had to work with was too small for standard bulbs so LEDs were my only viable option without fitting another fan - increasing the noise.

    So:
    [​IMG]

    [​IMG]

    Complete!
     
  10. AnalogWinter

    AnalogWinter Peppy Member

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    That looks awesome! The LED's work real well with the whole cab. Did you buy that frosted plastic or cut it yourself? Is that Segs logo painted or a sticker?


    ^_^_^
     
  11. Parris

    Parris I'm only here to observe...

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    The LEDs came from Maplins (like RadioShack in the UK) and cost £5.99. The Sega logo was a reverse transfer from a supplier on eBay and it cost £3.00 for 3 stickers. They are actually really good quality.

    As for the frosted plastic, it's actually material used to protect glass doors and windows. I didn't want anything stuck to the clear plastic incase I change my mind about how it looks in future. So, they are just sitting at the rear of the clear plastic sheet.

    The plastic material costs £10 a roll, but I have other things I can use it on. There must be an art store somewhere that sells single sheets of frosted plastic.

    Ultimately, that would look better - keeping my eyes open! This was the best I could do in my local DIY store.
     
    Last edited: Jan 10, 2009
  12. AnalogWinter

    AnalogWinter Peppy Member

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    I have ordered sheets of plastic from this place, they may be able to order it for you. http://www.estreetplastics.com/


    ^_^_^
     
  13. graciano1337

    graciano1337 Milk Bar

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    awesome job on the cab. it looks fantastic. and cannon spike?? :love2: too cool.
     
    Last edited: Jan 13, 2009
  14. Taucias

    Taucias Site Supporter 2014,2015

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    I DON'T recommend using wipes on the monitor internals. Extremely high voltages are stored in those capacitors. You could kill yourself if you don't know what you are doing.

    I also can't imagine it is good for the components in general or the traces, but if you have done 900 without an issue then I guess that is proof enough. Just be careful around exposed CRT monitors anyone reading this...
     
  15. Parris

    Parris I'm only here to observe...

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    Yeah WARNING - I am EXPENDABLE, anyone else reading it YOU ARE NOT!

    I hate cleaning monitors and I really don't recommend it to anyone who doesn't know what parts to avoid or be very careful with!
     
  16. Parris

    Parris I'm only here to observe...

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    Thanks! Actually, the most played title in the house has got to be Sega Tetris, which is really addictive. The least played was Geometrix or perhaps Gundam (mostly because I rarely put it into the system).

    My wife prefers puzzles and strategy titles and I like schmups and driving sims.

    My son plays Virtua Striker and Gigawing 2 (which he can complete time and time again (only 5 years old)).
     
  17. Parris

    Parris I'm only here to observe...

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    I've actually just bought a couple of wrecked Naomi sit-down units, which were really cheap but with good monitors (one 15k/31k so I can use it for Mame).
     
  18. Alchy

    Alchy Illustrious Member

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    You do discharge them before cleaning, right?
     
  19. Parris

    Parris I'm only here to observe...

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    Er, yeah, I do....... I am still here am I not? :eek:h:
     
  20. Alchy

    Alchy Illustrious Member

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    Yeah, it was just the wording of the "know which parts to avoid" which struck me as a little odd, like you were avoiding the live bits. No offense meant!
     
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