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Can a ColecoVision 5v Memory Mod be done on a Rev.D (1983) motherboard?


28 replies to this topic

#26 SiLic0ne t0aD OFFLINE  

SiLic0ne t0aD

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Posted Mon Jan 20, 2014 3:12 PM

Hmm that's a weird one. If you changed out the DRAM already, then Maybe your VDP took a dump. These can be a pain to get working right sometimes.
Thanks for the detailed pictures, I wish someone would do this for the "doubledown" power switch mod.
I may try this RAM mod later on down the road ;-)

Edited by SiLic0ne t0aD85, Mon Jan 20, 2014 3:14 PM.


#27 kerbdog OFFLINE  

kerbdog

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Posted Mon Jan 20, 2014 5:11 PM

Hmm that's a weird one. If you changed out the DRAM already, then Maybe your VDP took a dump. These can be a pain to get working right sometimes.
Thanks for the detailed pictures, I wish someone would do this for the "doubledown" power switch mod.
I may try this RAM mod later on down the road ;-)

 

VDP?



#28 SiLic0ne t0aD OFFLINE  

SiLic0ne t0aD

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Posted Mon Jan 20, 2014 6:57 PM

Video Display Processor, the main graphics chip. They can go bad.. Search around the forum in the ColecoVision section for more info ;-)

#29 Sparkoids OFFLINE  

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Posted Fri Feb 1, 2019 9:57 AM

I can confirm this mod works perfectly on a PAL Rev D Colecovision board. Since I have the VGA F-18A mod I had to put. an extra socket on the video processor to clear the raised RAM in it's sockets






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