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> ASC Repair, Need help
Flowers for Albi...
post Mar 13 2010, 09:49 PM
Post #1


Tranoid
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From: Puyallup, WA


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So I have this old DASC (go ahead and laugh) that I haven't used in about 2 years because one of the keys doesn't respond.
I really want to fix it, but I can't pinpoint the exact problem.

I don't know if it's:
A microswitch issue
A board connection issue
A circuit board itself issue

I'm hoping someone can tell me how to find out what it is and how to remedy it.

edit to be less vague: After checking again, now TWO of the keys don't respond, specifically keys 2 and 7.

pics if it helps...







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Hiroshi Watanabe
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Buffalo
post Mar 13 2010, 10:05 PM
Post #2


The Shadow
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taking a quick look at the pics it looks like the ground wire is daisy chained so it can't be the ground wire itself.

its probably a connection issue so take a look at the connection on the prong below the top (ground) prong on the microswitches and trace the wires to make sure its making contact with the board its soldered to


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Buffalo
post Mar 13 2010, 10:23 PM
Post #3


The Shadow
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oh yeah if you want to deduce if its a microswitch problem

just take each quick disconnect off of a microswitch you know that works, lets say 1, and swap them with the microswitch in question. So if you test it in game say, key 2 doesnt work so you swapped the disconnects off a key 1. If you go in game and the game registers key 1 as key 2, you can then deduce its not the microswitch but a problem with the connections.


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Flowers for Albi...
post Mar 14 2010, 07:14 PM
Post #4


Tranoid
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From: Puyallup, WA


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Props to my dad for making all the keys work again using a multimeter.

I still don't know what exactly the problem was, but he did some sort of "jump" on the prongs with the multimeter and the keys worked again. Huh.


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