Mika73 Posted February 24, 2019 Share Posted February 24, 2019 Can I buy FinalGROM 99 somewhere? I have FinalROM99 and like update GROM. Does it run Don’t mess with Texas Demo? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Opry99er Posted February 24, 2019 Share Posted February 24, 2019 Arcadeshopper sells them. It will definitely run the demo. 1 Quote Link to comment Share on other sites More sharing options...
Asmusr Posted February 24, 2019 Share Posted February 24, 2019 You also need a 32K RAM expansion. 1 Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted February 24, 2019 Share Posted February 24, 2019 Yes... The Don't mess with Texas Megademo... requires 32K memory expansion... ...The SPEECH SYNTHESIZER is also used! Quote Link to comment Share on other sites More sharing options...
Mika73 Posted February 24, 2019 Author Share Posted February 24, 2019 I have external 32k mem external expansion and speech expansion. We removed internal 32k because never got it fully working. It work with multi carts but mem test always fail. Internal was nightmare... Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
fabrice montupet Posted February 24, 2019 Share Posted February 24, 2019 Internal was nightmare... Too many long wires causes hardware instabilities and some difficulties to troubleshoot problems. The added components should have been placed differently. This page is in french but, thanks to the pictures and the schematic, you can see one of the solutions to optimize the 32Kb upgrade circuit: http://www.ti99.com/ti/index.php?article137/extension-memoire-32ko-pour-ti-99-4a Note: The switch enable/disable the 32Kb expansion. Quote Link to comment Share on other sites More sharing options...
Mika73 Posted February 24, 2019 Author Share Posted February 24, 2019 It’s removed already. I have external 32k now. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
lolof Posted February 27, 2019 Share Posted February 27, 2019 I am looking for 2 Finalgrom99 sticker for my cartridges.... Can someone sell me this ? Thanks Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 28, 2019 Share Posted February 28, 2019 I am looking for 2 Finalgrom99 sticker for my cartridges.... Can someone sell me this ? Thanks sure send me a pm and I'll mail you 2 1 Quote Link to comment Share on other sites More sharing options...
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