8k games into a 4k CHIPS???? How is it possible??? (ATARI 2600)

[8k games into a 4k CHIPS???? How is it possible??? (ATARI 2600)]

[How to make 4kB EPROM cart (Atari 2600) from the old one]

On 04/08/2020 at 17:29, ClausB said:

Se você já modificou a placa como acima, corte o fio desencapado no pino 21 e faça a ligação em ponte de um novo fio de 21 para 24 como abaixo. Se você ainda não modificou a placa, não corte o traço entre 21 e 24 e não adicione o fio desencapado ao pino 21.

 

So... Jut like originally was???

[How to make 4kB EPROM cart (Atari 2600) from the old one]

On 03/08/2020 at 20:48, ClausB said:

Prenda o pino 21 no pino 24, não no fio desencapado da foto.

Thanks a lot!!! I will try it and later post the results!!

[How to make 4kB EPROM cart (Atari 2600) from the old one]

On 8/2/2020 at 7:51 AM, ClausB said:

According to my Motorola 2716 data sheet, pin 21, Vpp, must be connected to 5V and will draw up to 5mA. So connecting it to A11 (as for 2732) isn't good enough.

Hi friend. Thanks for replying. So what must I do??
Another quest. May I use 74HC04 instead 7404 on trick modding an original ATARI pcb cart like the picture above???
Thanks once more..

[How to make 4kB EPROM cart (Atari 2600) from the old one]

On 3/10/2004 at 9:28 PM, Chuck Gill said:

Jamers,

 

If you really want to modify an old Atari one, here's a quick and dirty diagram. The red lines show where to cut the traces.

 

Chuck

 

Hi Friends.
First I would like to apologize both for my poor english and to rebirth an old post but I need some help and it looks that here there are a lot of people that know a lot the questions I have.
I did this trick modding an original ATARI pcb cart and I used a smd 74HC04 that works great when I placed a 27C32 Pitfall eprom. I Have a lot of TMS2516JL-45 that the datasheet says it is compatible pin to pin with 2716 (NOT TMS2716). I want to burn that chips with 2K games but when I do that and place it on my cart, it does not works.
What is wrong??
Anybody could help me please??