[Coco] Coco3 and coco2 peritel on Samsung 730MW

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Mon Dec 23 10:24:48 EST 2013


Yep, in my case a resistor between 8 and 16 solved the way its done on
this dreamcast scheme.

On Mon, Dec 23, 2013 at 10:22 AM, Steven Hirsch <snhirsch at gmail.com> wrote:
> On Mon, 23 Dec 2013, Luis Antoniosi (CoCoDemus) wrote:
>
>> On Mon, Dec 23, 2013 at 9:44 AM, Steven Hirsch <snhirsch at gmail.com> wrote:
>>>
>>> Highway Model 100
>>
>>
>> When building the scart cable you must  connect pin 8 (SWITCH - 12V)
>> to pin to pin 16 (BLNK) using a 560 Ohm resistor. Like this one:
>>
>> http://members.optusnet.com.au/eviltim/gamescart/dcast.png
>>
>> But you need to ground pin 17 only (VGND).
>
>
> Hmm.  I had to condition _two_ signals in order to get things cooperating:
>
> Pin 8 --> +12v for "AV" mode (external input)
>
> Pin 16 --> 1-3v for RGB signaling
>
> In particular, pin 16 selects composite video when it sees 0-0.4v
>
> Steve
>
>
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>
>
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