Re: 6569 luminances

From: Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>
Date: Sat, 04 May 2013 18:09:59 +0200
Message-ID: <518532D7.8080306@laosinh.s.bawue.de>
On 05/02/2013 10:16 PM, silverdr@wfmh.org.pl wrote:
>
> I had a moment of inspiration today (after Michau asked about the SX ROMs) to check how it is done in the SX (I thought it was like in the older 64s) and.. it occured that there are actually /two/ crystals piggybacked one on another and just three 74LS chips next to the passive stuff on the daughterboard called "clock unit".

Would it be possible to post the frequencies of the 2 crystals and what 
74LSxxx are on the clock board?

  Gerrit



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