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Re: [N8VEM-S100:4396] Re: Group Purchase - Z80 CPU V2 board PCB



Alex always use the board layout .pdf 's that is always the most current. 10Mhz may not work in your system try 8 and 9 also. Always 2Mhz.
John



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-------- Original message --------
From: "J. Alexander Jacocks"
Date:06/28/2014 9:31 AM (GMT-06:00)
To: n8vem...@googlegroups.com
Subject: Re: [N8VEM-S100:4396] Re: Group Purchase - Z80 CPU V2 board PCB

Oh, and I assume that, for 10 MHz operation, U46 needs to be changed to 10 MHz?  What about the 2 MHz U42 oscillator?

Thanks!
- Alex


On Sat, Jun 28, 2014 at 10:19 AM, J. Alexander Jacocks <jjac...@gmail.com> wrote:
I was just doing up a BoM for the V2 CPU board, and I noticed a few discrepancies between the parts list, from s100computers.com, and the description, on the page, and the board layout picture.

First, there is one IC that should be a 74F, there is a missing 47 uF cap, and the IC count is 39, from the parts list, and 44, on the board.  There are also a couple of missing LEDs, in the parts list.

Is the board picture more current, or the parts list?  Given that the parts list is a bit internally inconsistent, I assume that it is the board layout picture.

Thanks!
- Alex


On Wed, Jun 25, 2014 at 1:18 PM, J. Alexander Jacocks <jjac...@gmail.com> wrote:
Gary,

Do you have any spares of this board?

Thanks!
- Alex


On Wed, Jun 25, 2014 at 10:07 AM, <geka...@gmail.com> wrote:
Frank -

I've been traveling a bit, so didn't respond sooner...

I'll email tonight with details

- Gary


On Wednesday, June 25, 2014 2:46:25 AM UTC-4, Frank Schieschke wrote:
Hello Gary,
do you have one Z80 CPU board already?
When yes, i want to have one.
Please tell me the shipping costs to germany and your PayPal account.

Best Regards,
Frank

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