Re: PLA replacement for C64

From: Clockmeister <clockmeister_at_internode.on.net>
Date: Wed, 29 Apr 2015 23:57:18 +0800
Message-ID: <5540FF5E.3040108@internode.on.net>
On 29/04/2015 9:10 PM, Didier Derny wrote:
> Hi,
>
> looks like this one:
> http://upload.wikimedia.org/wikipedia/commons/9/90/C64_ASSY_NO_250425_motherboard_1984.jpg 
>
>
>
> On 29/04/2015 14:57, silverdr@wfmh.org.pl wrote:
>> On 2015-04-29 13:43, Didier Derny wrote:
>>> Hi Ruud :)
>>>
>>> I guess the  8701 and 6569 are ok, I had spare to swap
>>>
>>> I'm also thinking to the ram ship, but I think I would rather have a
>>> garbaged screen with a ram failure
>>
>> Not really. Only in some specific cases you get this kind of result. 
>> More RAM failures I had to repair manifested itself with no startup 
>> screen than with garbled content.
>>


Sometimes the temperature of the RAM chip (or lack thereof) is a dead 
giveaway especially if the problem is temperature sensitive. I've 
diagnosed faulty RAM and ROM by touch alone.



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Received on 2015-04-29 16:01:18

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