Videopac / Odyssey2 forum

Videopac / Odyssey2 => Hardware => Topic started by: Rene_G7400 on January 16, 2013, 04:22:41 PM



Title: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on January 16, 2013, 04:22:41 PM
Two years ago "VideopacBelgium" has found a Service Testcart for the G7400.
http://videopac.nl/forum/index.php?topic=1309.msg14627#msg14627 (http://videopac.nl/forum/index.php?topic=1309.msg14627#msg14627)

I'm going to make copies of it with a new PCB. It won't be an official release, no cartridge-label, only a loose cart and a text-only manual. The cart will be available on pre-order only, so I will only make the exact number of carts as the number of names on the pre-order list. The price will be 39 Euro (shipping not included).

Pre-order list:

1. René
2. Bas
3. mjb
4. TomBeck
5. Janzl
6. VideopacBelgium
7. immergruen
8. gertk
9. manopac
10. revivalstudios
11. Ozyr
12. grgh
13. dronspa
14. Tom31
15. Alex
16. Geri
17. Karl
18. Maurice
19. Marc
20. CCC

This is a picture of the PCB of the original G7400 testcart:


Title: Re: Copies of the G7400 Service Testcart
Post by: mjb on January 16, 2013, 06:06:54 PM
Rene

I would be interested in a copy please.

Mark


Title: Re: Copies of the G7400 Service Testcart
Post by: Ozyr on January 16, 2013, 06:39:57 PM
How would this differ from the Service Test Cartridge done in 2010?


Title: Re: Copies of the G7400 Service Testcart
Post by: TomBeck on January 16, 2013, 08:49:16 PM
PM send  ;)


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on January 16, 2013, 09:46:02 PM
How would this differ from the Service Test Cartridge done in 2010?

The Service Test Cartridge that was released in 2010 was meant only for the Videopac G7000 console.
(See: http://www.bas-ditta.info/videopac/teksten/stc%20order.htm (http://www.bas-ditta.info/videopac/teksten/stc%20order.htm) )
The G7400 testcart has extra tests for the Plus graphics chips of the G7400 console.
(See: http://videopac.nl/forum/index.php?topic=1695.0 (http://videopac.nl/forum/index.php?topic=1695.0) )

Another difference is the red display on the cartridge: the G7000 testcart has a standard 7-segment display, the G7400 testcart has two hexadecimal displays.
(See: http://videopac.nl/forum/index.php?topic=1309.msg14670#msg14670 (http://videopac.nl/forum/index.php?topic=1309.msg14670#msg14670) )

There are some hardware differences: the G7000 testcart needed a separate latch for the display, the displays of the G7400 testcart have a built-in latch. The ROM of the G7000 testcart is 2k, the G7400 testcart has an 8k ROM, with an additional latch for bankswitching just like Videopac games 55, 58, 59 and 60.

The 2010 release came with a large manual, I'm not going to do that for the G7400 testcart. The G7000 part of the G7400 testcart is almost the same as the G7000 testcart.


Title: Re: New copies of the G7400 Service Testcart
Post by: immergruen on January 17, 2013, 06:56:25 PM
Please put me on the list, too!


Title: Re: New copies of the G7400 Service Testcart
Post by: gertk on January 17, 2013, 07:08:34 PM
I like to have one of those as well  :)


Title: Re: New copies of the G7400 Service Testcart
Post by: manopac on January 17, 2013, 09:41:07 PM
one for me please!


Title: Re: New copies of the G7400 Service Testcart
Post by: revivalstudios on January 17, 2013, 09:41:42 PM
one copy please!


Title: Re: New copies of the G7400 Service Testcart
Post by: gertk on January 18, 2013, 07:47:38 AM
BTW: Are the displays the TIL311 ? (they were designed in 1972!)


Title: Re: New copies of the G7400 Service Testcart
Post by: Ozyr on January 18, 2013, 07:56:43 AM
Okay, put me down for one too, please. Thanks.


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on January 18, 2013, 10:14:24 AM
BTW: Are the displays the TIL311 ? (they were designed in 1972!)

Of course they are, do you know any another display that looks the same?
(I like the TIL311 very much, unfortunately they are not cheap.)


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on January 18, 2013, 10:20:42 AM
Extra bonus: I'll put the Eprom in a socket. This way you can do your own hardware experiments with this cart if you've got an Eprom programmer. You can do tests with the displays and with the bankswitching. The cart supports 16k games too, so if you want to modify Videopac 59 or 60, you can use this cart to test them. The displays have sockets too.


Title: Re: New copies of the G7400 Service Testcart
Post by: grgh on January 18, 2013, 12:41:44 PM
Yes please, put me down for one.


Title: Re: New copies of the G7400 Service Testcart
Post by: dronspa on January 21, 2013, 07:19:53 PM
Put me on the list, please!  ;)


Title: Re: New copies of the G7400 Service Testcart
Post by: Tom31 on January 25, 2013, 06:49:59 PM
One copy for me please.

Greetings from Austria send you Thomas


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on July 20, 2013, 06:51:51 PM
Pictures of the new G7400 testcartridge and what's inside.


Title: Re: New copies of the G7400 Service Testcart
Post by: mjb on July 20, 2013, 06:55:59 PM
Looks great Rene  :)



Title: Re: New copies of the G7400 Service Testcart
Post by: TomBeck on July 20, 2013, 08:20:25 PM
Thanks for the pictures Rene.Very good work  8)


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on July 20, 2013, 09:11:54 PM
This cartridge is only the first test version. The other carts are not ready yet. (But they will look the same.)
I'm planning to include a simple manual (printed on standard A4 paper).


Title: Re: New copies of the G7400 Service Testcart
Post by: Ozyr on July 21, 2013, 04:17:41 AM
Is this going to function pretty much the same as the original 7400 test cart, or will there be added functions?


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on July 21, 2013, 11:41:18 PM
It is going to function the same as the original G7400 testcart, there will be no additional functions.
I've simplified the hardware a little bit (2 additional IC's instead of 3), and I've done a few minor software bug fixes.

Just like the G7000 testcart this cart is not compatible with Odyssey2 consoles. On non-plus consoles it will work almost the same as the G7000 testcart, with only one additional test. On a G7400 or Jopac console the cart has 7 additional tests.


Title: Re: New copies of the G7400 Service Testcart
Post by: Rene_G7400 on October 28, 2013, 03:07:08 PM
The pre-order list is now closed. I'm going to make 20 copies of this cart. 7 copies are ready and have been sold to visitors of the Retro Event.
There will be no second run of this cart.


Title: Re: New copies of the G7400 Service Testcart
Post by: Define on November 08, 2013, 11:57:02 AM
To bad for people like me who came to this forum lately for these goodies, but one can't have all and a collection has to be build with time for the most fun maybe :)