[Coco] Best way to clean up FD501 controller board.

[Bob Devries]

There's a good chance that you fixed the problem when you cleaned the edge 
connectors. They are notoriously flaky and prone to bad connections. They 
would have been better if they'd been gold-plated, like the Disto ones. SIGH


--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "William Schaub" <wschaub at steubentech.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, March 13, 2008 8:39 AM
Subject: Re: [Coco] Best way to clean up FD501 controller board.


>I didn't unsocket the chips as they looked pretty good. I did take the 
>toothbruch with alchohol to teh edge connectors as well. I pretty much 
>scrubbed every inch. and its comming up now and the drive reads and writes 
>fine.
>
>
> Mark McDougall wrote:
>> William Schaub wrote:
>>
>>> I just Gave this a try, all I could find was 50% isopropyil alcohol It 
>>> seems to have worked quite well. I'm waiting for the alcohol to dry off 
>>> and then I will give it another go hopefully it will work this time 
>>> round. otherwise I will be wanting a new controller  I would be glad to 
>>> give the non-working board as a source of parts.
>>
>> What exactly are you cleaning? Just a general clean of the PCBA surface 
>> won't do a lot...
>>
>> You need to remove the socketed chips and clean the pins, and the sockets 
>> if you can. Also paramount are the card-edge connectors on either end of 
>> the board. Anything else is little more than cosmetic...
>>
>> Regards,
>>
>
>
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