[Coco] CoCo 2 Factory Composite Video RE'd

[Zippster]

Except that people with PAL machines are likely to have PAL displays, aren’t they?

The composite output from the MC6847 is NTSC.  I wonder if the PAL conversion
is done in the modulator box?

- Ed 

> On Dec 15, 2014, at 4:19 PM, John W. Linville <linville at tuxdriver.com> wrote:
> 
> On Mon, Dec 15, 2014 at 09:59:29PM +0000, Torsten Dittel wrote:
>> Zippster <zippster278 at ...> writes:
>> 
>>> I can layout boards to replace any of the RF modulators if I know the
>> dimensions and pinouts.
>>> 
>>> So far I know of 3 types, CoCo 2 - Korean motherboards (RF lays flat on
>> MB), earlier (pre-Korean?)
>>> motherboards where the modulator is larger, and on edge.  And then CoCo1
>> (all the same modulator?)
>>> 
>>> I have no problem doing boards for all these types if people want them. 
>> 
>> I wonder if anything of this would work for a (European, UK or Australian)
>> PAL CoCo 1,1B,2,2B as well (the French "Péritel" versions have the modulator
>> space on the unique PCBs anyway replaced by a SECAM RGB out circuit)...
> 
> The circuit would be quite different, since there was no PAL version
> of the MC1372 afaik.  On the other hand, I think Simon indicated
> that his CoCo2 had composite video at the input to his modulator.
> If that is true across the various models, then something like what
> is done for the CoCo1 (i.e. no circuit or just an amplifier) should
> work for them as well...?
> 
> John
> -- 
> John W. Linville		Someday the world will need a hero, and you
> linville at tuxdriver.com			might be all we have.  Be ready.
> 
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