- Joined: 24 Jun 1999
- Posts: 1732
- Location: Paris, France
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GG Pirate Cartridge, and questions to Mike
 Posted: Sat Jul 15, 2000 2:49 pm
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Today I found and bought a "Dead Angle" cartridge for the Game Gear.
I first noticed it because the sticker on the cartridge looked ugly :)
It is the SMS version of the game, using SMS mode of the Game Gear.
The game is 256 kbytes.
Then I opened it and noticed it was an EPROM.
Question 1: how dangerous it is for me to open the cartridge and manipulate it a few minutes, in term of data loss?
As if it could be useful, the EPROM reads:
DA (human written, means Dead Angle I guess)
..(window there)..
*ST Logo* V88AA
92I4E5 (or 9214E5)
M27C2001
-20XFI (or 20XF1)
Next to the EPROM there is a chip which is very probably the mapper, and it reads:
*Unable to recognize logo* HY18CV8S-35
9149T KOREA
And the cartridge board says GG-1001 on both sides.
Question 2: There is an "Olympic Gold" cartridge on the same shop which is defintively a pirate game from the same source judging by the crappy Game Gear logo.
It is worthful to buy it ? Would your EPROM writer be able to write to such EPROM ?
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- Joined: 21 Apr 2000
- Posts: 598
- Location: Newcastle upon Tyne, England
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Posted: Sat Jul 15, 2000 9:42 pm
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Quote > Question 1: how dangerous it is for me to open the cartridge and manipulate it a few minutes, in term of data loss?
Not very! So long as you take the usual precautions for handling chips i.e. earth yourself beforehand, you should be fine. (Touch a water pipe, for example.)
Quote > As if it could be useful, the EPROM reads:
> DA (human written, means Dead Angle I guess)
> ..(window there)..
> *ST Logo* V88AA
> 92I4E5 (or 9214E5)
> M27C2001
> -20XFI (or 20XF1)
This is a standard SGS-Thomson 256k EPROM - I have some of the exact same type.
Quote > Next to the EPROM there is a chip which is very probably the mapper, and it reads:
> *Unable to recognize logo* HY18CV8S-35
> 9149T KOREA
Interesting... how many pins does this chip have? 20? Considering the part number, it looks like a PAL (Programmable Array Logic) chip of some kind. Codemasters used a similar chip in their carts, if your scan of Fantastic Dizzy is anything to go by!
I wonder - were the pirates able to program the chip to emulate a real Sega mapper? Or is the ROM hacked to work with this chip instead?
Quote > Question 2: There is an "Olympic Gold" cartridge on the same shop which is defintively a pirate game from the same source judging by the crappy Game Gear logo.
> It is worthful to buy it ? Would your EPROM writer be able to write to such EPROM ?
Certainly - I've been using the ST 27c2001 EPROMs with no problems. I'd say it was worth buying anyway!
Mike
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- Joined: 24 Jun 1999
- Posts: 1732
- Location: Paris, France
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Posted: Sun Jul 16, 2000 12:16 am
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Thanks for the previous answers!
Quote >> *Unable to recognize logo* HY18CV8S-35
>> 9149T KOREA
> Interesting... how many pins does this chip have? 20?
Yes it has 20 pins.
Quote >Considering the part number, it looks like a PAL (Programmable Array Logic) chip of some kind.
>Codemasters used a similar chip in their carts, if your scan of Fantastic Dizzy is anything to go by!
Well, I still can't write to mappers on those cartridges ^_^
Quote > I wonder - were the pirates able to program the chip to emulate a real Sega mapper? Or is the ROM hacked to work with this chip instead?
The ROM is the same.
Quote >> It is worthful to buy it ? Would your EPROM writer be able to write to such EPROM ?
> Certainly - I've been using the ST 27c2001 EPROMs with no problems. I'd say it was worth buying anyway!
Ok I'll try to get it on Monday. Surely no one will pick it up between, and tomorrow is Sunday anyway :)
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