[Coco] Coco 2 64k - heat issue?

[George Ramsower]

  Only the fans are powered by a USB port, NOT the coco.
George R.

On 6/27/2015 1:57 PM, AQ Cerutti wrote:
> So you just power it from a USB plug style adapter I assume? May do that,
> it's a cheap solution. Thanks for the advice.
> On Jun 27, 2015 11:14 AM, "Kandur" <k at qdv.pw> wrote:
>
>> Bought this new dual fan on Ebay for less then 3 bucks.
>> Totally quiet, put in on the top of my Coco, keeps it cool as a cucumber.
>> http://i.ebayimg.com/00/s/NTAwWDUwMA==/z/nRgAAOSwQItT0iOW/$_35.JPG
>>
>>
>> Kandur
>>
>> Saturday, June 27, 2015, 9:29:29 AM, you wrote:
>>> Hi All,
>>> I wrote not too long ago asking some questions about how to troubleshoot
>> my
>>> disk controller and learned that I couldn't use it with my 16k Coco
>> because
>>> it didn't have extended color basic. I'm a Coco newb but think they are
>>> pretty cool little machines and have been enjoying reading along on these
>>> forums.
>>> Good news, I bought a 64k Coco with extended color basic for about $40
>> and
>>> my floppy interface and drive do work.
>>> I'm noticing though that this 64k system gets very hot, much hotter than
>> my
>>> 16k system. Taking this apart, the bulk of the heat seems to be coming
>> from
>>> the power supply. The power supply looks okay. I don't see any corrosion,
>>> it's not plugged up with anything, I don't see any obvious shorts in the
>>> wires, etc.
>>> Can anyone confirm if these 64k Cocos run hot as in kind of hot to the
>>> touch from the outside of the case after having been on for just a few
>>> minutes?
>>> Factors that may be contributing:
>>> 1) It was about a 100 degree day when I was testing this and probably
>> about
>>> 85 in my garage.
>>> 2) Someone, trying to get rid of the yellowing on this Coco, repainted
>> it.
>>> They did a good job, all vents are free of paint but could this be
>>> contributing to extra heat?
>>> If the power supply seems to be the issue, does anyone have any
>> suggestions
>>> as to how to cool this little system down other than a fan? The chips
>>> didn't seem to be excessively warm after letting sit a few minutes and
>>> opening but the power supply still was.
>>> Is that anything I should be worried about? If the consensus, is yes,
>> does
>>> anyone have a power supply from a Coco 2 that they'd be willing to sell
>> and
>>> should any coco 2 power supply work or would it have to be from a 64k?
>> One
>>> with the power cord attached might be good, I can solder a bit but would
>>> prefer just to retack what is there.
>>> Does this even need to be replaced or should I just use it as is?
>>> Thanks for any information!
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