From: William Levak (wlevak_at_cyberspace.org)
Date: 2003-03-19 05:37:26
There is a 1984 Techtopics that list changes to the board. It should be
on funet somewhere. C4 is changed to 470pF and C9 (.0033uF) is added
across R1 and R2.
On Tue, 18 Mar 2003, Daniele Gratteri wrote:
> Hi to everybody! Recently I have got a quite old Datassette unit (its data
> cable is dated 1984) and I opened it for seeing if it was all ok.
> Then, on FUNET, I found this page:
> http://www.funet.fi/pub/cbm/schematics/datassette/cas-update.gif where there
> are information about an update to be done on the PCB version NP-090. My
> "new" datassette is NP-090B: do you know if the same update applies to this
> board revision too? I checked the components and in fact a capacitor is of
> the wrong value and another one is missing between two resistors.
> Also, it seems that there is little difference between the NP-090 schematics
> and my actual NP-090B PCB.
> __ ____
> /// Daniele Gratteri, Italian Commodore-Amiga user / ___|____
> __ /// E-MAIL: daniele_gratteri@inwind.it RITMO S75 | | |___/
> \\\/// Nickname: FIAT1100D - ICQ: 53943994 FOREVER! | |___|___\
> \/// URL: http://spazioinwind.libero.it/danielegratteri \____|
>
>
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>
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