[Coco] Troubleshooting CoCo 3

[Dave Philipsen]

If you know someone with a 'scope it will make troubleshooting a lot easier in my opinion.  With the right understanding/experience you can identify whether there's a video signal, clocks, activity on the data & address lines, etc.  The VOM may identify power supply problems but a 'scope is almost essential if the problem is deeper than that.

Dave

> On Apr 29, 2017, at 7:43 PM, Salvador Garcia via Coco <coco at maltedmedia.com> wrote:
> 
> Ok, thanks,got it. I got some hits referencing the DIP puller.
> 
> 
> Funny, I clicked Ad to cart on the Amazon page and got "This site can't be reached." I'll try again later on or look for another source.
> 
> Salvador
> 
> 
>      From: Christopher Noyes <cnoyes72 at cox.net>
> To: 'CoCoList for Color Computer Enthusiasts' <coco at maltedmedia.com> 
> Sent: Saturday, April 29, 2017 7:30 PM
> Subject: Re: [Coco] Troubleshooting CoCo 3
> 
> That tool is for DIP chips.  This tool is for PLCC chips
> 
> https://www.amazon.com/uxcell-Professional-Extractor-WTS-610-Assisted/dp/B007Q8J2HG
> 
> 
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Salvador Garcia via Coco
> Sent: Saturday, April 29, 2017 8:29 PM
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Cc: Salvador Garcia <salvadorgarciav at yahoo.com>
> Subject: Re: [Coco] Troubleshooting CoCo 3
> 
> Thanks for letting me know. I need to get that tool. Looking in Google I found this image:
> https://images-na.ssl-images-amazon.com/images/I/51S511dP3SL._AC_UL160_SR160,160_.jpg
> 
> Is that it? If so, I think I have one.
> Salvador
> 
>       From: Brian Goers <briang0671 at sbcglobal.net>
> To: coco at maltedmedia.com
> Sent: Saturday, April 29, 2017 4:18 PM
> Subject: Re: [Coco] Troubleshooting CoCo 3
>   
> I deleted other messages.
> 
> Do not removed the gime unless you use a plcc puller.
> If you use any other method you rick cracking the chip holder/case.
> 
> 
>> On 4/29/2017 3:58 PM, Salvador Garcia via Coco wrote:
>> Thanks Chris! I'll have a second look. Salvador
>> 
>>         From: Christopher R. Hawks <chawks at dls.net>
> 
> 
> 
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