[Coco] I've killed my CoCo3
Zippster
zippster278 at gmail.com
Thu Oct 19 23:11:30 EDT 2017
I’d be happy to do it Glen, but maybe if there’s someone in Canada it
would save you on some postage.
- Ed
> On Oct 19, 2017, at 10:02 PM, Glen Hewlett <glen.hewlett at sympatico.ca> wrote:
>
> I’ll second Paul’s comment we really do have a great CoCo community with two offers so far to actually fix Paul’s CoCo 3! You guys rock!
>
> I did the same thing a few months ago to one of my CoCo 3’s while trying to upgrade the CPU, so don’t feel too bad Paul. Mine is currently is in really bad shape. I thought maybe one day I’ll try and hard wire the traces that I wrecked on the mainboard similarly to what Barry Nelson mentioned, but every time I look at it again I feel bad and I get discouraged.
>
> Maybe I could also ask someone with better soldering skills to revive my CoCo 3?
>
> Luckily I was able to successfully upgrade my other CoCo 3 so I still have one working CoCo 3 with a 6309.
>
> Cheers,
> Glen
>
>> On Oct 19, 2017, at 1:04 PM, EDDY SZCZERBINSKI <dhaulagiri at hotmail.com> wrote:
>>
>> Yes please post a picture.
>>
>> I have a similar "operation" to do on a KORG synth and that thread helped me.
>>
>> I will probably go with the "jumpers" solution.
>>
>>
>> have all a nice day
>>
>>
>> Eddy Szczerbinski
>> DHAULAGIRI at HOTMAIL.COM <mailto:DHAULAGIRI at HOTMAIL.COM>
>> 418 580 8464
>>
>>
>> ________________________________
>> De : Coco <coco-bounces at maltedmedia.com <mailto:coco-bounces at maltedmedia.com>> de la part de Zippster <zippster278 at gmail.com <mailto:zippster278 at gmail.com>>
>> Envoyé : jeudi 19 octobre 2017 12:17
>> À : CoCoList for Color Computer Enthusiasts
>> Objet : Re: [Coco] I've killed my CoCo3
>>
>> Well now you’ve just got me intrigued Paul. I may have to take pictures. :)
>>
>> - Ed
>>
>>
>>> On Oct 19, 2017, at 10:44 AM, Paul Shoemaker <paulfe3 at swbell.net> wrote:
>>>
>>> Many thanks to all you guys for the advice, insight and offers of help! I took Ed up on his offer, which he may regret when I sees what I have in store for him. What a fantastic CoCo community we have here!
>>>
>>> -Paul
>>>
>>> From: dwight.bazinet <dwight.bazinet at gmail.com>
>>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>>> Sent: Thursday, October 19, 2017 9:43 AM
>>> Subject: Re: [Coco] I've killed my CoCo3
>>>
>>> Hi Ed,
>>>
>>> I used to have a full pace kit available to me n my work lab. I much
>>> prefered the vacuum desoldering tool (not the plunger, but the vacuum with
>>> the solder filter). I wouldn't even clip the pins, it would do that good a
>>> job cleaning them up. I used just a small amount of liquid flux prior to
>>> heat, and then it would melt right away an hen vacuum, which also drew away
>>> the flux.
>>>
>>> However, I cn't afford a full Pace kit at home. I haven't ot one of the
>>> cheaper stations because I don't know how well they work, so I use a
>>> plunger. If I was going to do a lot of work I would get sone liquid flux.
>>>
>>> Do you prefer braid over a proper vacuum tool?
>>>
>>>
>>>
>>> On Oct 19, 2017 9:39 AM, "Zippster" <zippster278 at gmail.com> wrote:
>>>
>>>> Hi Paul,
>>>>
>>>> I’m sorry it went that way. I still consider the clip and and desoldering
>>>> braid the safest way,
>>>> but it is pretty important to have a soldering station where you can
>>>> control the temp, and using
>>>> a proper tip for the iron. A ‘drag soldering’ type tip, basically a
>>>> straight cylinder with the end cut
>>>> at an angle is best (for applying heat to the braid), a chisel tip
>>>> probably second best. Having a
>>>> flat surface at the tip allows for faster more accurate heat transfer to
>>>> the pad and solder without
>>>> excessively heating the board material. I find the common round pencil
>>>> style tips to be one of the least
>>>> suitable for anything. I use a chisel or drag type for everything. Of
>>>> course that’s just my opinion and
>>>> everyone has their own way of doing things.
>>>>
>>>> All that said, it’s possible the board was degraded or just not up to par
>>>> in some way which
>>>> helped it fall apart on you. It can happen.
>>>>
>>>> If you want, you can send the board to me, I’m certain I can patch it up
>>>> for you. No charge, just
>>>> take care of the shipping. Unless someone has a motherboard with a dead
>>>> GIME out there.
>>>>
>>>> - Ed
>>>>
>>>>
>>>>> On Oct 19, 2017, at 6:13 AM, Paul Shoemaker <paulfe3 at swbell.net> wrote:
>>>>>
>>>>> Hi everyone,
>>>>>
>>>>> Yesterday evening I decided to replace the 6809 with a 6309 in my CoCo
>>>> 3. Although I am still an amateur with a soldering iron, I've been
>>>> practicing and recently completed this same process on one of my CoCo 2
>>>> systems where I clipped out the 6809, desoldered the remaining pins, and
>>>> soldered in a socket. However, when I tried this same approach on my CoCo
>>>> 3, as soon as I started using solder wick, I noticed some of the solder
>>>> pads began to come off. I don't think I was using excessive heat (same
>>>> iron, same heat settings as before). Even the traces on the board began to
>>>> lift up. It became clear to me after this happened to a few pads that I
>>>> had destroyed the board.
>>>>>
>>>>> If anything I was more gentle with the CoCo 3 board than I was with the
>>>> CoCo 2 board before. It was evident that the CoCo3 board was more
>>>> "weathered" than any of my other systems... more dust and dirt inside, a
>>>> lot of oxidation on the RF modulator box, etc. It may be that this CoCo 3
>>>> spent many years in a garage or shed prior to me rescuing it from eBay last
>>>> year.
>>>>>
>>>>> Any advice on how to avoid from happening again this in the future?
>>>>>
>>>>> -Paul
>>>>>
>>>>>
>>>>>
>>>>>
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