New Memotech user
Re: New Memotech user
Yes !
If you bought it as a "MTX512", I would complain to the seller that it was not as advertised, you might get a bit of a refund
You might also like to note that you can clearly see by the marks, i.e., grooves in the solder on the "fingers" on the internal edge connector, that an expansion card (the RAM board) has previously been fitted and removed
regards
Dave

If you bought it as a "MTX512", I would complain to the seller that it was not as advertised, you might get a bit of a refund
You might also like to note that you can clearly see by the marks, i.e., grooves in the solder on the "fingers" on the internal edge connector, that an expansion card (the RAM board) has previously been fitted and removed
regards
Dave
Re: New Memotech user
All the more reason to get an MFX!
Steve G
Danish Memotech MTX 512, MFX and loving it
Danish Memotech MTX 512, MFX and loving it
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Re: New Memotech user
I did warn you that as it had the old keyboard that it was probably a 32K machine that had a RAM board.
Easy to fix though. Replace the PAL, swap the memory and change a jumper and it's a true 512.
Easy to fix though. Replace the PAL, swap the memory and change a jumper and it's a true 512.
Re: New Memotech user
Welcome to the MTX world, where the label on the front of the system isn't always quite accurare!
As has been pointed out, there's clear marks on the internal edge connector that there was another board in the system originally. Logically that would have been memory.
The good news in the mean time, is 90% of the non CPM, ie games, software was written for 32k.
As has been pointed out, there's clear marks on the internal edge connector that there was another board in the system originally. Logically that would have been memory.
The good news in the mean time, is 90% of the non CPM, ie games, software was written for 32k.
Shh you, remember I'm the one that assmebles those, you're trying to make more work for me!
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Re: New Memotech user
Well, technically it does have more than 32K.
It has a total of 384K bits of RAM... But only 48K bytes of RAM. 16K bytes of which is video RAM outside of the Z80 address space.
Mark
It has a total of 384K bits of RAM... But only 48K bytes of RAM. 16K bytes of which is video RAM outside of the Z80 address space.
Mark


“There are four lights!”
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb

Autumn is here. Bye bye summer 2024...
Not as many MTXs as Dave!

Re: New Memotech user
Dave is the one to talk to, I just do the assembly

Re: New Memotech user
It's 4000-04 which also means it's a relatively early system. I wasn't aware that the keyboard font was an indication it was an earlier machine? I have seen them of 512s2's.stephen_usher wrote: ↑20 Jan 2024 10:31 I did warn you that as it had the old keyboard that it was probably a 32K machine that had a RAM board.
Steve G
Danish Memotech MTX 512, MFX and loving it
Danish Memotech MTX 512, MFX and loving it
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- Posts: 341
- Joined: 27 Nov 2016 19:58
Re: New Memotech user
Until I had my two systems side-by-side I didn't even know that there were two keyboard types. The "earlier" one with "Return" has slightly taller and conical key caps. I know my MTX500, which was bought in December 1984, has "RET" on the return key and ZX Spectrum style rubber feet rather than the round feet on the earlier "MTX512" which had 32K RAM.gunrock wrote: ↑20 Jan 2024 18:36It's 4000-04 which also means it's a relatively early system. I wasn't aware that the keyboard font was an indication it was an earlier machine? I have seen them of 512s2's.stephen_usher wrote: ↑20 Jan 2024 10:31 I did warn you that as it had the old keyboard that it was probably a 32K machine that had a RAM board.
It's possible that Memotech had two keyboard suppliers, I don't know.