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<1…891011121314…34>
  • Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …

    ... and diode, is what the eprom in one of my 48K ... have a Hitachi made 27c128 EPROM chip, the ROM selection straps ...
    DEATH DEATH December 2006 Hardware
  • Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …

    ... or anything to use an EPROM in a Speccy - you just ...
    Spirantho Spirantho December 2006 Hardware
  • Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …

    ... or anything to use an EPROM in a Speccy - you just ...
    icabod icabod December 2006 Hardware
  • Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …

    ... or anything to use an EPROM in a Speccy - you just ... /> There is lot of diverse EPROM available with different control pins ... 3 condition required to activate EPROM (ROM) chip for read:
    EPROM.
    There is 2 free ...
    piters piters December 2006 Hardware
  • Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…

    ... test RAM) or even the EPROM I fitted in, but they ...
    Marcelo Marcelo January 2007 Hardware
  • PC200 Q'sJust started researching 1988, and naturally I'll be mentioning the ill-fated PC200. A Q and a req: Q: Did the PC200 actually get released in 1988?…

    ... />
    - If you have an EPROM burner, it's possible to ...
    John Elliott John Elliott January 2007 Sinclair Miscellaneous
  • a dumb question?Well, I have been confused with all these interfaces so I have the following question which will make things clear for me... ;) Is there a "device" …

    ... solution is to have Flash EPROM in interface - there is a ...
    piters piters January 2007 Hardware
  • a dumb question?Well, I have been confused with all these interfaces so I have the following question which will make things clear for me... ;) Is there a "device" …

    ... solution is to have Flash EPROM in interface - there is a ... BASIC ROM.

    Flash EPROM doesn't gain you anything ...
    glancaster glancaster January 2007 Hardware
  • DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…

    ... would look like:

    [ CONMEM MAPRAM x x RAM3 RAM2 ... OUT must not really set CONMEM or MAPRAM):

    [ 1 ...
    baze baze January 2007 Development
  • a dumb question?Well, I have been confused with all these interfaces so I have the following question which will make things clear for me... ;) Is there a "device" …

    ... 've misunderstood how ....
    Flash EPROM doesn't gain you anything ...
    piters piters January 2007 Hardware
  • Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …

    ... - you can use the 27c128 EPROM with the ROM image burnt ... on here who have a EPROM blower and be willing to ...
    DEATH DEATH January 2007 Hardware
  • divIDE ProductionJust to let everyone know that we have made further progress with the updated divIDE. Board design has been completed and changes have been made to …

    ... , which you'd need an EPROM programmer to write directly to ...
    icabod icabod February 2007 Announcements
  • divIDE ProductionJust to let everyone know that we have made further progress with the updated divIDE. Board design has been completed and changes have been made to …

    ... onto the ROM with an EPROM programmer, although we would recommend ...
    rwap rwap February 2007 Announcements
  • Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …

    ... RST I must use an Eprom to save the CALL-address ...
    Dr BEEP Dr BEEP March 2007 Emulators
  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... 't need an external serial EPROM) or failing that, an Atmega ...
    Winston Winston March 2007 Sinclair Miscellaneous
  • Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …

    ... a PAL/GAL or second EPROM with 17 address lines, but ...
    Marcelo Marcelo March 2007 Emulators
  • toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…

    ... .org"]Willem[/URL] 4.1 EPROM programmer and happily fixed a ...
    Marcelo Marcelo March 2007 Hardware
  • toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…

    ... too tight to buy an eprom programmer :-) I just constructed a ...
    Winston Winston March 2007 Hardware
  • TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…

    ... ]

    You can program EPROM chips (27c128) for new ROMs ...
    DEATH DEATH March 2007 Hardware
  • TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…

    How dificult would it be to make a rom cart - a la JetPac etc - which holds a 16k eprom or 8k eprom 8 k ram which then plugs into interface2/ram turb etc?

    Could be good for testing speccy ram.
    dekh dekh March 2007 Hardware
  • Anybody fancy coding this?blah de blah de blah Please ignore, poting error.

    ... the Speccy Rom with an EPROM? There's voltage and pin ...
    dekh dekh March 2007 Development
  • Anybody fancy coding this?blah de blah de blah Please ignore, poting error.

    ... flash - don't bother with eprom. You can replace the ROM ...
    Winston Winston March 2007 Development
  • What's the most probable......cause for this on a grey +2? (z80 is excluded) [url]http://img376.imageshack.us/img376/8087/plus2hk9.jpg[/url]

    ... />
    If you have a eprom programmer and a 27c256, download ... /> Put the new eprom instead the original eprom and see if the ...
    Jose_Leandro Jose_Leandro March 2007 Hardware
  • What's the most probable......cause for this on a grey +2? (z80 is excluded) [url]http://img376.imageshack.us/img376/8087/plus2hk9.jpg[/url]

    ... />
    If you have a eprom programmer and a 27c256, download ... /> Put the new eprom instead the original eprom and see if the ... i just drop in the eprom? There's no need do ...
    odious odious March 2007 Hardware
  • What's the most probable......cause for this on a grey +2? (z80 is excluded) [url]http://img376.imageshack.us/img376/8087/plus2hk9.jpg[/url]

    ... i just drop in the eprom? There's no need do ... just drop the new eprom instead the old eprom or rom. The ...
    Jose_Leandro Jose_Leandro March 2007 Hardware
  • What's the most probable......cause for this on a grey +2? (z80 is excluded) [url]http://img376.imageshack.us/img376/8087/plus2hk9.jpg[/url]

    ... /> (i removed and replaced the eprom and resoldered the pcf, rom ... present)

    While the eprom is testing the banks, those ...
    odious odious March 2007 Hardware
  • What's the most probable......cause for this on a grey +2? (z80 is excluded) [url]http://img376.imageshack.us/img376/8087/plus2hk9.jpg[/url]

    ... thing happens with the test eprom. So, it's something else ...
    odious odious March 2007 Hardware
  • Will an interface 1 work with a +2?I don't want to break anything, can I bugger up the +2 by connecting an interface 1 and microdrive to it? Are they compatible? If they are, with no…

    ... burn it to a suitable EPROM. Or go one better and ... searching for the instuctions, which eprom to use etc. It seems ... interface 1 experience, flashing an eprom for it etc.

    Arda Arda March 2007 Hardware
  • Will an interface 1 work with a +2?I don't want to break anything, can I bugger up the +2 by connecting an interface 1 and microdrive to it? Are they compatible? If they are, with no…

    ... burn it to a suitable EPROM. Or go one better and ...
    Geoff Geoff March 2007 Hardware
  • Anyone still use their Spectrum?I mean, with the quality of emulation available, does anyone still hook up the spectrum and load from tapes? I still have my Spectrum + and it's in p…

    ... test the new ZX-PC eprom.

    Found some small ...
    Dr BEEP Dr BEEP April 2007 Emulators
<1…891011121314…34>

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conmem 16 25
eprom 1.4K 2.2K

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