Please advise

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By Gloriou

Expert (106)

Gloriou's picture

01-02-2019, 13:24

Alexey wrote:

Yes, disk drives mostly have rubber belt problems that are easily fixable. On the mainboards the electrolytic capacitors or batteries may leak damaging everything around them. Some very old and badly made ICs may have cracks in their casing and that breaks them. I've seen a few EPROMs that lost data due to aging. There were even cases when certain OTP chips restored their internal wires that were supposed to be destroyed during their programming. I once got a machine that had a mouse's nest on the mainboard. Took a lot of patience to clean up the mess.

yucky, that was more dirty than mine, because mine got only stoned roaches eggs Tongue

By Gloriou

Expert (106)

Gloriou's picture

02-02-2019, 13:45

I couldn't run dragon Slayer 4 (dsk) from floppy on my ax370, although The same floppy ran on the emulation using RuMSX as drive.
I used Diskmanager, and the floppy was formatted using real MSX. What's wrong?

By Alexey

Guardian (1930)

Alexey's picture

02-02-2019, 18:31

Not enough RAM? If I remember correctly DS4 is a 256kb ROM. We made a resident loader for the game back in 1990s so that it could run on on 128kb. Ping me if you need the files.

Also try to boot while holding CTRL, maybe this will solve the problem.

By Gloriou

Expert (106)

Gloriou's picture

02-02-2019, 20:45

Alexey wrote:

Not enough RAM? If I remember correctly DS4 is a 256kb ROM. We made a resident loader for the game back in 1990s so that it could run on on 128kb. Ping me if you need the files.

Also try to boot while holding CTRL, maybe this will solve the problem.

Even if it was a DSK file not a ROM?
Yeah already done that Ctrl won't help either.
My MSX is 128kb

By Gloriou

Expert (106)

Gloriou's picture

02-02-2019, 20:59

Grauw wrote:
Gloriou wrote:

I was hoping that I could just buy and upgraded MSX2+, clean fully working MSX and also to run games and have fun.

Well, floppy games and cassette games work fine in RAM of course, but ROM games are meant to run from ROM cartridges and so you need special hardware to emulate them if you want to run copies. Otherwise it would also have been really easy to copy games, so it was also a sort of copy protection.

So if you want to run ROM games as well have mass storage and sound chips and a memory upgrade, those all-in-one cartridges are a recommended purchase.

Gloriou wrote:

The problem in my MSXes is that they were left loooooong time on the shelf, imagine the work that the need.......... Keyboard not working, dusty, floppy not working just a mess.
Yesterday I fixed the floppy of the AX350. I was told by my brother it is not working 25+ years ago Big smile

Ah I see, well that could be another reason to get a new MSX of course. Though I think it would be pretty nice if you could get them to work properly again, give them a second life! Smile

Earlier I just wanted to point out that those AX machines actually have pretty good specs, and that in order to run ROM games you need something else.

Sorry I didn't notice your reply earlier.
Sure I'm trying but even the joypad port is defective, I have to press it on a weird angle to get it working. And even though some directions are still not working.
Don't worry I won't give up that easily.
1- anybody has similar issues with joypad port? What should be done?
2- Can I upgrade the RAM of AX350, AX370? And how, what is the requirements?

By Grauw

Enlighted (7843)

Grauw's picture

02-02-2019, 23:46

Gloriou wrote:

Even if it was a DSK file not a ROM?
Yeah already done that Ctrl won't help either.
My MSX is 128kb

In the 80s and 90s several ROM games were “cracked” (copied and modified) to run from disk and RAM, but they need enough RAM memory to fit the original ROM. This is probably what you got a hold of for DS4. For those cracks a RAM expansion will help, but nowadays it’s better and easier to run the original ROM dumps from a FlashROM or MegaROM cartridge, because the cracks were often coded badly and do not always work on all machines, or may have bugs introduced. Also the ROM dumps are easier to find nowadays. A few cracks were made to load parts of the game from disk to reduce the memory requirement to 128K (common in Europe), that’s what Alexey is referring to.

Gloriou wrote:

Sure I'm trying but even the joypad port is defective, I have to press it on a weird angle to get it working. And even though some directions are still not working.

That sounds very much like the solder joints just have gone bad. If you open it up and resolder all the contacts of the joystick connector, I bet it will work fine again. Same often happens with video output connectors (due to frequent plugging & unplugging).

By Gloriou

Expert (106)

Gloriou's picture

03-02-2019, 03:31

Grauw wrote:
Gloriou wrote:

Even if it was a DSK file not a ROM?
Yeah already done that Ctrl won't help either.
My MSX is 128kb

In the 80s and 90s several ROM games were “cracked” (copied and modified) to run from disk and RAM, but they need enough RAM memory to fit the original ROM. This is probably what you got a hold of for DS4. For those cracks a RAM expansion will help, but nowadays it’s better and easier to run the original ROM dumps from a FlashROM or MegaROM cartridge, because the cracks were often coded badly and do not always work on all machines, or may have bugs introduced. Also the ROM dumps are easier to find nowadays. A few cracks were made to load parts of the game from disk to reduce the memory requirement to 128K (common in Europe), that’s what Alexey is referring to.

Oh now I understood, so the floppy file I have is one of those bad cracked thing... No wonder that It restarts each time Im trying to load the games...

Gloriou wrote:

Sure I'm trying but even the joypad port is defective, I have to press it on a weird angle to get it working. And even though some directions are still not working.

That sounds very much like the solder joints just have gone bad. If you open it up and resolder all the contacts of the joystick connector, I bet it will work fine again. Same often happens with video output connectors (due to frequent plugging & unplugging).

In that case Im gonna try to fix it but hopefully not break it lol Big smile

By Gloriou

Expert (106)

Gloriou's picture

04-02-2019, 13:33

I have broken right arrow key in one of the two AX370. It continually press Right, because the internal spring is sitting on the membrane. The Plastic that tilts the spring into making it making contact to the membrane is broken long time ago. Thanks to hyper sports and hyper Olympic Games Tongue

Anybody has any Ideas, Please?

By Grauw

Enlighted (7843)

Grauw's picture

04-02-2019, 16:50

Can you transplant it from another key?

By Gloriou

Expert (106)

Gloriou's picture

04-02-2019, 17:40

Grauw wrote:

Can you transplant it from another key?

Transplant what? How? Because the right arrow is special nothing similar to it

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