Radofin 1292 advanced programmable video system

[Radofin 1292 advanced programmable video system]

Many articles see them as the same system, but in my research they are similar systems. And this is because Interton and Radofin designed them at the same time with the help of Philips and, therefore, they are so similar. As we say here in Brazil: Children of the same mother, but of different parents.

[Radofin 1292 advanced programmable video system]

5 minutos atrás, carlsson disse:

Deve haver dezenas de tópicos anteriores sobre o VC-4000 e o 1292 APVS. Aqui está um anterior em que as especificações técnicas foram discutidas:

 

Hi Carlsson. I read this topic, but I still had doubts about the issue of processors and memory. Another thing, the VC4000 system is not a clone of 1292, right? They are, so to speak, cousins, as the project appears to have passed through the sieve of Philips.

[Radofin 1292 advanced programmable video system]

35 minutos atrás, Rolo disse:

Hi,

 

Not so obscure, I think. Quite common, but it is true, not so much information available.

I opened up my ACETRONIC MPU-1000 and took some photos.

 

PAL-version: crystal 8.867 MHz, obviously divided.

 

Com relação ao clock, li a figura 0,887 MHz, que seria algo como um quarto do pico de cor NTSC (~ 3,58 MHz).

Hmmm, o burst de cor PAL é de ~ 4.434 MHz, o cristal oscila com o dobro dessa frequência. Se dividirmos isso por 4, acabaríamos em 1,108 MHz, o que também parece plausível. O relógio máximo é 1,25 MHz. Talvez seja necessária alguma medição. Alguém sabe?

 

Microprocessador Signetics 2650AN (40 pinos de plástico):

 

RAM:

Não há RAM real no console. O console está usando 37 bytes de memória de bloco de rascunho do chip PVI (Signetics 2636).

 

 

Yes, that makes sense. The 2650N has a maximum clock speed of 1.25 MHz. Signetics 2636, as I understand it, is a kind of video processor and is clocked at 3.58 MHz. It would make sense for the crystal to be 8,867 MHz.

[Radofin 1292 advanced programmable video system]

Hi everyone.

  Guys, I'm researching for my book and I ran into this Radofin 1292 system. He is a very obscure video game system and would like to know if anyone has more detailed information about this system.

  First, I can't find the correct processor clock details. Everyone says that the Signetics 2650A-1 runs at 4.43 MHz, which is impossible since, because the specifications of this processor indicate that it reaches a maximum clock of 2 MHz. Another point is the amount of memory. Everybody all speak in 32. But, 32 Kilo bits or 32 Kilo Bytes?

  Most likely, by the time and the cost of memory at 70's, it would be 32 Kilo bits which would give about 4 Kilo Bytes.

  I am really grateful if someone has the right information.

 

Thanks!