Re: LL PCB repair

John,

I've got quite a bit of data in various paper notebooks that I really
should review and convert. I will try to locate and sort through the
info when I return home in a few days.

-- Steve

On 2/21/2013 11:39 AM, John Robertson wrote:
> xray2 (Steve) wrote:
>> Andre,
>>
>> I'm out on business travel right now but can send you my notes for
>> testing the LL board with the fluke when I return home this weekend.
>> It's probably not a lot but I have the checksums, memory and I/O
>> ranges mapped out. If you think it will help I can convert them from
>> paper to electronic for you.
>>
>> Oh, and YES, you only need +5 on any of the vector boards for
>> testing. I believe asteroids and newer require an about 11.3v on the
>> input of one of the tl082 opamps to drive the output high and start
>> the clock. You can't damage anything by not applying the +/-22.
>>
>>
>> -- Steve
>
> Steve, if you send me a copy I'll put it up on TTL in the Fluke section.
>
> Thanks,
>
> John :-#)#
>
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Received on Thu Feb 21 16:57:18 2013