Re: LL PCB repair

From: John Robertson <pinball_at_telus.net>
Date: Thu Feb 21 2013 - 14:39:58 EST

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 14:40:52 2013

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