Re: 6567 revisions (was Re: 264/TED/Plus4 Story)

From: Hársfalvi Levente <>
Date: Thu, 25 Aug 2011 17:41:08 +0200
Message-ID: <>
On 2011-08-24 22:10, Marko Mäkelä wrote:
> On Wed, Aug 24, 2011 at 09:30:24PM +0200, Hársfalvi Levente wrote:
>>> A peculiar thing about the 6567R56A is that the video timings are
>>> different. It is 64 cycles per line, while the 6567R8 is 65 cycles per
>>> line. Maybe even the number of lines differed. All 6569 revisions
>>> that I know of are 63 cycles per line and 312 lines per frame.
>> I seem to remember that they also provided about half the number of
>> luminance levels than later ones (6567R8 / 6569R3) did (which really
>> affected picture quality IMHO).
> As far as I remember, the 6569R1 and 6569R3 generate 5 luminance
> levels.  I do not remember the 6567R8 that well, but I guess it should
> generate 5 levels too.

According to your own findings, that's not the case... :-) I slightly
felt there was something wrong with this thing and indeed it was...
remember this nice measurement arranged by you from something like 15
years ago?... :-)


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Received on 2011-08-25 16:00:03

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