Re: FAT-40 PET board check pls?

Well, that inverter shouldn't be used in a 40-column configuration, so it shouldn't really matter.Maybe someone just wanted a free inverter for something? Check J1 and J2. J1 should be closed and J2 open for 40-column.
Steve

      From: Francesco Messineo <francesco.messineo@gmail.com>
 To: cbm-hackers@musoftware.de 
 Sent: Friday, January 5, 2018 1:35 PM
 Subject: Re: FAT-40 PET board check pls?
   
On Fri, Jan 5, 2018 at 7:13 PM, Steve Gray <sjgray@rogers.com> wrote:
> No, they're not supposed to be lifted, instead the jumpers J1 and J2 should
> be properly configured.These pins are part of an inverter in the clock
> section to change the master timing. Its possible that this was an 80-column
> machine converted to 40.

it's missing the additional video RAM to be an 80 column, all the
jumpers he could check where for 40-c.
Why one would lift those pins if converting a board?


Thanks
Frank
> ________________________________
> From: Francesco Messineo <francesco.messineo@gmail.com>
> To: cbm-hackers@musoftware.de
> Sent: Friday, January 5, 2018 11:48 AM
> Subject: FAT-40 PET board check pls?
>
> Hi all,
> can anyone with a 4032 (crtc 8032080 assy) please check if UD2 pin 10
> and 11 are supposed to be lifted from the board?
> A friend, not on this list, is repairing one and asked about this, he
> found these two pins lifted. According to the schematic, they should
> not be lifted, but I've never seen an 8032080 assy to be sure.
>
> Thanks a lot
> Frank
>
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