[Coco] SuperComm v1.07 screen artifacts

[Travis Poppe]

The photo I posted is a 6309, so that alone apparently doesn't fix it.

On Wed, Aug 17, 2016 at 12:50 PM, Dave Philipsen <dave at davebiz.com> wrote:

> Some people found that replacing the Motorola MC68B09EP CPU with a second
> source "AMI" brand CPU worked.  Another fix involved replacing caps C10 and
> C11 with 100pF caps and replacing R9 and R10 with 100-ohm resistors.  I do
> not know if the Hitachi 6809 or 6309 would produce the same results.  If I
> were you, I'd tried the cap/resistor fix first and see if that works.
> These components are tied to the E and Q clock lines.
>
> Dave
>
>
>
> On 8/17/2016 11:01 AM, Barry Nelson wrote:
>
>> It would be great if you could send me the details on any fix that does
>> not involve replacing the GIME chip.
>>
>> Dave Philipsen dave at davebiz.com
>>> Wed Aug 17 10:02:22 EDT 2016
>>>
>>> This is an old, old problem. I remember hearing about it back in the 80s
>>> and there were some fixes you could apply instead of swapping out the GIME
>>> chip. It requires some desoldering/soldering.
>>>
>>> Dave Philipsen
>>>
>>> On Aug 17, 2016, at 12:12 AM, Barry Nelson <barry.nelson at
>>>> amobiledevice.com> wrote:
>>>>
>>>> That looks exactly like what I see.
>>>>
>>>> Travis Poppe travispoppe at gmail.com
>>>>> Tue Aug 16 02:47:41 EDT 2016
>>>>>
>>>>> You can see a bit of it here: https://goo.gl/photos/Z9yN1JapTXbsK2JFA
>>>>>
>>>>
>>
>
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-- 
Travis Poppe
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