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Search Again :: Adv Search 1000 results in 0.014s
<1234567…34>
  • +3 memory repair- which ICHi there, I'm trying to repair an old +3 and have bought a Retroleum SMART card. The diagnostic rom test says that the upper ram is faulty and give…

    ... ,
    I'm trying to repair an old +3 and have ...
    harryinashed harryinashed June 2017 Hardware
  • Does anyone still have the same speccie?The survey into the Games of the Year - and the question about what system you were playing 20 years ago - got me thinking. Has anyone on the forum …

    ... ish, having sent it for repair back then it was returned ... with a note saying beyond repair!
    I still have another ... still works (although had a memory repair over the years)
    I ...
    Jonb_uk Jonb_uk March 2013 Games
  • Spectrum spares / repair jobsI recently bought a few faulty Spectrum 48+'s and have built a fully functional unit from the best bits of them, however this has left me with two pa…

    ... someone else for spares or repair.

    Both spectrum circuit ... replacement ULA / RAM chips to repair other 48K spectrums).

    memory I think they are extended ...
    BuzzinRich BuzzinRich November 2003 Sales
  • QL repairI have a QL with a memory expansion. It's keyboard membrane is knackered and when switched on screen corruption flickers all over the place and the b…

    ... have a QL with a memory expansion. It's keyboard membrane ... 't seem to be a repair section.
    absorbentgnome absorbentgnome May 2005 Wanted
  • Rubber Key RAM - Repair?Hello there everyone! I'm a long-time lurker on here - ROMs, documentation etc. but yesterday I finally ponied up for my own speccy, just like the on…

    ... 3D Starstrike: 4 - Out Of Memory
    On Driller: M - RAMTOP ... that is Ian Gledhill for repair?

    Thanks a million ...
    KenDoddsDad KenDoddsDad August 2013 Hardware
  • Trying to repair my old 48kAbout 30 years ago I had a spectrum 48k, it had some troubles in the end, it was very unstable when it was cold, so I had to warm it up an hour befor…

    ... I have been reading many "repair your spectrum" gudeis, but ... socketed, and some of the memory chips are also replaced, ... been repairing traces around the memory chips, probably because the ... broke the traces when replacing memory. ..However, those repairs are ...
    Repulsiv Repulsiv March 2018 Hardware
  • Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…

    ... is where the screen memory resides. The screen memory ends at 23296 ... is what on earth the memory before KSTATE and after the ... video memory is used for on a ...
    cyborg cyborg November 2002 Sinclair Miscellaneous
  • ahem!.. could I have a minute of everyones time please :)ok... here's the thing. I'm looking into sourcing some spare IC's for the whole range of Spectrums - mainly memory, as that's probably the weakest l…

    ... whole range of Spectrums - mainly memory, as that's probably the ... / a complete set of replacement memory ICs etc.

    ... service' - where some / all memory IC's are replaced for ... />
    d) General Faulty speccy repair service

    be honest ...
    GP GP February 2003 Sinclair Miscellaneous
  • 128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …

    ... />
    Port 32765 controls the memory paging. Bits 0-2 determine ...
    trellis trellis August 2003 Sinclair Basic
  • ZX80/81 memory expansion and 48k + Lightpen for saleAll are in original packaging and the lightpen has it's software and manual. The memory expansion is a 16k one. E-mail me at [email="patrick@wych01…

    All are in original packaging and the lightpen has it's software and manual.

    The memory expansion is a 16k one.

    E-mail me at [email="patrick@wych01.freeserve.co.uk"]patrick@wych01.freeserve.co.uk[/email] if intrested..
    zeropolis79 zeropolis79 September 2003 Sales
  • memory is filled up under Win XP when opening many filesDear friends, I have the big and strange problem that ZX-Rainbow's game scanner is not working properly under Windows XP. I figured out (during a ti…

    ... in the virtual memory), so that the memory is filled up with ... the file stream, freeing the memory.
    I wrote another testing ... the complete file content in memory.

    The problem does ...
    Seejay Seejay April 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... /> If so, what are the memory areas available for 16k and ...
    robpearmain robpearmain May 2004 Development
  • Spectrum repairsHello, does anybody here have experience with repairing defunct Spectrums? I have several of them at home, mostly 48K ones collected over time from …

    ... the usual symptoms of faulty memory or ULA ICs? Which ones ... is an oscilloscope to the repair process? I have the "usual ...
    J?rg Pleumann J?rg Pleumann June 2004 Sinclair Miscellaneous
  • Strange layout of Spectrum video memoryHello, does anyone have an idea why the Spectrum's video memory has such a strange layout? I understand that a resolution of 256x192 is an easy mean…

    ... why the Spectrum's video memory has such a strange layout ... it easier to address video memory. I also understand that the ... ) are a compromise to limited memory. But where does the line ...
    J?rg Pleumann J?rg Pleumann August 2004 Sinclair Miscellaneous
  • what extra port for extra memory ? (256K, 512K, 1024K, etc.)I know that Pentagon uses some extra bits from port 7FFD for extra memory pging: - for 512K model, bit 6 & 7 of port 7FFD - for 1024K model, bit 5, 6…

    ... from port 7FFD for extra memory pging:
    - for ... those bits for extra memory switching and if it ... / port DFFD for extra memory paging.
    What is ... keep track of a memory bank number, by combining ... established port for extra memory, other than the Pentagon ...
    secarica secarica September 2004 Sinclair Miscellaneous
  • SPIN - debugger / fill memory / how ?I try to fill the screen with 00 value, but I don't get the expected result. - pause the game - debugger - hex numbers - fill memory block - fill wi…

    ...
    - hex numbers
    - fill memory block
    - fill with 00 ...
    - main memory
    - start address - 4000
    - ok
    then
    - view memory
    - all screen data is ...
    secarica secarica October 2004 Emulators
  • Data at the top of memoryWhilst viewing memory locations on the "Spin" emulator I noticed data starting at 65336. Does a "real" ZX Spectrum 48k use the top end of available m…

    Whilst viewing memory locations on the "Spin" emulator I noticed data starting at 65336. Does a "real" ZX Spectrum 48k use the top end of available memory ? If so, what is the last memory location that is safe to use ?
    Mr Millside Mr Millside February 2005 Development
  • Emulator Dev: Memory Use When Loading RZXsHi, I am currently working on a port of an emulator to a system with limited memory (64mb). I am running out of memory when loading large snapshots …

    ... to a system with limited memory (64mb). I am running out ... of memory when loading large snapshots (ie ... let me know how much memory is needed to decompress a ...
    Crabfists Crabfists June 2005 Emulators
  • Can a CPU emite microwaves? And other questionsSome CPU/electrical questions for the more technical amongst us: 1. Some time back a bloke I knew, whose PC I used to repair, said that he'd read in…

    ... , whose PC I used to repair, said that he'd read ... there-abouts) yet, and no memory fast enough to supprt a ...
    ewgf ewgf January 2006 Chit chat
  • Interface 1 Memory Map(I'm not sure which section this post should go in, but here seems as good as any) Since the Interface 1 ROM is only 8k long, does anyone know what …

    ... appears in the 8-16k memory range when IF1 is paged ...
    MikeW MikeW May 2006 Hardware
  • Wanted: Gamecube memory cardI'm looking to buy a gamecube memory card. I don't need a large capacity memory card but a card that can save information for upto 3 games will do. I…

    ... looking to buy a gamecube memory card. I don't need ... a large capacity memory card but a card that ... they own or a used memory card (in working condition of ...
    Arjun Arjun May 2006 Chit chat
  • The Rocky Horror Show - Alternate version or just weak memory?Ok, I have a question that has been bugging me all my life... "The Rocky Horror Show" was the first game I have ever played, it was for some reason…

    ... a case of blurry child memory?

    And by the ...
    Fred_PJ Fred_PJ August 2006 Games
  • Emulator with ability to watch memory?Hi! I'm looking for an emulator that can give me a realtime update of an address in memory. I've tried Fuse (on OS X) where I can set a breakpoint i…

    ... update of an address in memory. I've tried Fuse (on ...
    bigredswitch bigredswitch August 2006 Emulators
  • Where do you keep your tape images? CD, DVD, USB drive or Memory Sticks?I have my most beloved games (well over 300 titles) on my SD memory card. What's your type of archive medium?

    I have my most beloved games (well over 300 titles) on my SD memory card. What's your type of archive medium?
    Uros Zupan Uros Zupan September 2006 Sinclair Miscellaneous
  • Memory Map/ContentionHi I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scrolling…

    ... this a correct map for memory contention?

    Address Size ...
    5B00-7fff 08k Contended Memory
    8000-FFFF 32k Fast ... Memory (well normal memory really :) )

    Cheers ...
    ZJones ZJones September 2006 Development
  • Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…

    ... ?) behind ULA's spectrum screen memory interpretation?

    6144 bytes ... behind this implementation? Why screen memory isn't interpreted continuously?
    Arda Arda October 2006 Development
  • 128K memory testingDuring a mad half hour I decided to write a little memory tester program in BASIC using the information from the 48K service manual. Now I was wonder…

    ... decided to write a little memory tester program in BASIC using ...
    BruceNorton BruceNorton October 2006 Sinclair Basic
  • Laptop Repair AdviceAnyone got any pearls of wisdom when it comes to laptop repair? My other half laptop has a problem, this being it overheats very quickly and shuts d…

    ... when it comes to laptop repair?

    My other half ... to go round the local repair agents as I know it ...
    ZX Beccy ZX Beccy November 2006 Chit chat
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... makes me wonder: How much memory does a Speccy have, included ... the memory used by the machine itself ...
    Pilsener Pilsener March 2007 Hardware
  • Issue 1 32K Memory Upgrade neededHi folks, as the title suggest im looking for the original sinclair memory board to make it 48k from 16k. Any other form will do or even instructions…

    ... looking for the original sinclair memory board to make it 48k ...
    ZX-MAD ZX-MAD March 2007 Wanted
<1234567…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
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    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
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