[Coco] Disto SC add-ons

[Benoit Bleau]

Gene Heskett wrote:

> On Tuesday 30 December 2008, Benoit Bleau wrote:

>   

>> Roger Taylor wrote:

>>     

>>> Does anyone know how in the heck the addon with the video chip is

>>> supposed to output video or how it works?  The board also has a clock

>>> chip which seems to be running even though the board is old.. you can

>>> PEEK from BASIC and see the clock registers changing.  I do have the

>>> register specs on the clock.  The video chip is a CRT9128. There's an

>>> 11mhz crystal, HM6116LP-2 chip, 13x2 header, and 2x2 header.  I see no

>>> other ID marks on the board other than the word "Disto" and two color

>>> stickers on the back labeled "M" and "T".

>>>

>>> I see nothing in the Disto SC docs explaining the details of this

>>> board, just a mention that it's one of the add-ons.

>>>       

>> if I recall, I had one of these boards 15 years ago?  and it worked only

>> with OS9. It required a driver to be installed.

>> I returned it to CRC computers, because it had a horrible wobble in the

>> image.

>>     

>

> Humm, were you purchance operating the monitor sitting adjacent to the regular 

> color monitor?  The leakage of magnetic fields from the deflection yoke of 

> the color monitor will make a Maggy PC-80 13" wobble very noticeably.  I put 

> a sheet of steel between them which helped quite a bit.

>

>   

>> -Benoit

>>

>> --

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>>     

>

>

>

>   

Nope, I had a long cable going to a color TV, which was about 5 feet 
away. When I brought it back to CRC,
they couldn't get it to work any better, so they refunded me.

-Benoit