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I have seen some EPROMS used in Dragon carts where instead of the sticker, the window was painted black. The other posibility is that the second chip is the one time programable version of the 2532. Cheers. Phill. Thanks Phill, I guess that's what's called a PROM then? I have attached a picture of ...

What puzzles me is that only the first of the two socketed chips have the "erase window". Maybe they used a mixed of EPROMS and non erasable roms?

I just opened a old Dragon Data game cartridge, and observed two socketed "chips" as well as one smaller soldered chip. One of the socketed chips have a "bump" in the middle, with a white sticker on it, and is marked 2532-55JL B 8301. I guess this is the EPROM, and the sticker is there to prevent th...

Have a look at page 20 of Dragon User, September 1988.

Vato

Firstly, congratulations to whoever won the two auctions on e-bay for the FarmFax cart software.....now if the winner could be kind enough to dump the contents of the cart roms so we can put them in the archive I would be most greatful and a photo of scan of the instruction manuals would be most we...

They are not as rare as you might think. Over the years I have seen several factory sealed Dragon's with 6809E processors by Hitachi and Thomson installed in them. Now if it had been a 6309E chip, that would be a different story.... 8-) zephyr, No It's not that I thought the Hitachis are such rare ...

Is the Hitachi a licenced product or is it a "clone"?

Vato

For 26 years I have lived in the belief that my Dragon 32 had a Motorola MC6809E at it's core. So my surprise was rather big when I yesterday opened my Dragon, only to find a Hitachi HD6809EP instead. So now I'm wondering if this chip was exchanged during a repair return, or if Dragon Data really us...

Thanks for the info Zephyr. I find it rather strange that it's a late board, as the D32 was given to me on May 8th 1983, under a year after it was released. I remember the exact date for various reasons. But it WAS sent back for repair some time during 1984 (I believe). Maybe they changed the whole ...

Hi,
here's a shot of the inside of my D32. If you view it full size, you should be able to read the text on the chips.
Please tell me what you find.... what version etc.

Thanks

V

EDIT:
Wow... that came up big.... is it possible to show the attachment as a thumbnail?