The TI-99\/4A was released in the US with the TMS9918A Video display processor.
It created a 60Hz signal, 240p, therefore 60 different frames per second.
The chip produces internally a composite signal and outputs that on a IC pin.
The video signal was output as composite on a DIN port with 5 pins, the norm for it is DIN 41524.
One of the 5 pins is used for the video signal.<\/p>\n\n\n\n
For the European market the TMS9929A Video display processor was used.
That one generates a 50Hz signal, 288p, therefore 50 different frames per second.
The chip produces no composite signal, instead it produces Luma on one IC pin, and 2 color difference signals on two additional IC pins.
The video signal was output as Y, R-Y, B-Y on a DIN port with 6 pins, the norm for it is DIN 45322.
Three of the 6 pins are used for the video signals.<\/p>\n\n\n\n
Disclaimer: one pin on that DIN port is outputting 12V to power the obsolete video modulator. A wrong cable might damage your connected display device!<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
The TI-99\/4A was released in the US with the TMS9918A Video display processor.It created a 60Hz signal, 240p, therefore 60 different frames per second.The chip produces internally a composite signal and outputs that on a IC pin.The video signal was output as composite on a DIN port with 5 pins, the norm for it is […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4698","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/pages\/4698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ti99.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4698"}],"version-history":[{"count":1,"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/pages\/4698\/revisions"}],"predecessor-version":[{"id":4700,"href":"https:\/\/www.ti99.eu\/index.php?rest_route=\/wp\/v2\/pages\/4698\/revisions\/4700"}],"wp:attachment":[{"href":"https:\/\/www.ti99.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}