World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.017s
<1…12131415161718…34>
  • Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…

    ... the likely locations of a fault.

    If the CPU ... instruction as it executes the ROM firmware. This is rather long ...
    Zorn Zorn July 2013 Hardware
  • Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…

    ... the likely locations of a fault.

    If the CPU ... instruction as it executes the ROM firmware. This is rather long ...
    guesser guesser July 2013 Hardware
  • Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…

    ... parallel interface with an alternate ROM that's pre-programmed to ... used.
    There is a fault in the link to the ...
    rich_chandler rich_chandler August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... be the pilot detection at fault.

    Border only turns ... % threshold is also where the ROM loader starts failing with my ... least as robust as the ROM!)

    Hope this gives ...
    balford balford August 2013 Development
  • Transistors 101Hi, Im a complete novice when it comes to electronics and would appreciate any help that can be given. Im replacing the transistor that sits on to…

    ... working lower RAM, CPU and ROM.

    Maybe let us ... a document I saw about fault finding on the boards. I ...
    rune rune August 2013 Hardware
  • Issue 4A black paper, white borderJust had one of these through, nice yellow pcb! Everything but the ULA soldered in. On power up I get black paper, white border and some intermitten…

    ... web page on the test ROM you used talks about ... by software running from a ROM connected to a Spectrum. ... software that is in the ROM.

    Perhaps ... it means when this ROM reports a bad address ... first message, suggest a fault affecting the upper RAM, ...
    Zorn Zorn August 2013 Hardware
  • Corrupt paper on zx spectrum 48kHi. When I power up my spectrum (issue 3) I get the light grey border, but the paper is black and it switches between thin red vertical lines and thi…

    ... of fault finding a suspected RAM fault is to use a ROM based ...
    1024MAK 1024MAK August 2013 Hardware
  • Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…

    ... .php?t=40495"]TESTROM3 - utility/rom for test your ZX [/URL ... /showthread.php?t=41027"]RAM fault on 48K Spectrum[/URL][/B ...
    1024MAK 1024MAK August 2013 Hardware
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... whether it's a generic ROM type speed loader or your ... not your fault if people can't even load ROM speed stuff ...
    DEATH DEATH September 2013 Development
  • Faulty +3Hi all Hoping this isn't the 40077 dead on my +3 but....... [IMG]http://www.darrenwileman.co.uk/SPEC/Plus3.jpg[/IMG] Tried the following in anothe…

    ... the classic symptom of no ROM, as the CPU ends up ... the ROM socketing, and if you don't find a fault there ...
    balford balford September 2013 Hardware
  • IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…

    ... the two basic and shadow ROM files onto the system. It ... the exact nature of the fault.
    Dan Antohi Dan Antohi September 2013 Hardware
  • Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…

    I think if the Z80 were at fault, you wouldn't get any sense out of the diagnostics ROM.

    Have you tried replacing IC3/IC4?

    B
    balford balford December 2013 Hardware
  • Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…

    ... fault, you wouldn't get any sense out of the diagnostics ROM ... (which explains why the Diagnostic ROM itself works) and could mot ...
    Falco-F8L Falco-F8L December 2013 Hardware
  • Grey Spectrum 128+2 Is mine dead??Having a nice session of 128+2 playing this evening and as I was playing Paperboy I noticed a few graphical glitches that had not occured before, the…

    ... br />
    Back to the fault. Sorry, but from what you ... RAM chip causes this fault (all the RAM chips ... may cause this are the ROM, the Z80 CPU, ...
    1024MAK 1024MAK January 2014 Hardware
  • Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…

    ... ubiquitous and comprehensively unhelpful "Memory fault. Core dumped.". Although that was ... Vickers book; for the Spectrum ROM, the Logan/O'Hara disassembly ... Ian Logan, which explains the ROM routines and how to use ...
    Battle Bunny Battle Bunny January 2014 Development
  • IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…

    ... at least have their own ROM or possibly own processing capability ... , as the ?high incidence? of fault reports stems mainly from a ...
    Dan Antohi Dan Antohi January 2014 Hardware
  • Faulty 128K toastrack keeps resettingHi. I have this toastrack which worked nicely for let's say 40 minutes and then a weird fault showed up. It keeps resetting over and over, sometimes…

    ... this is probably a thermal fault. You said the machine would ... check banking circuit that forces ROM bank (PAL, LS174)[/QUOTE]
    pkersey pkersey January 2014 Hardware
  • ZX Spectrum + Please help!I wonder if anyone can help? I purchased a ZX Spectrum + from a Car Boot Sale last year, boxed, with games and leads. The problem is, it won't tune i…

    ... symptom of a RAM fault and/or a fault with the internal ... the Z80 CPU or the ROM.

    [B][I]Mark ...
    1024MAK 1024MAK January 2014 Hardware
  • Issue 3B suddenly goes black and whiteAnother 3B I have here had a faulty ULA, swapped that out for another and hurrah! Works! New keyboard membrane and composite mod later I load a game…

    ... screen goes blank, start the fault investigation all over again...[/QUOTE ... the Z80 CPU and the ROM just to confirm that they ... poor connection somewhere, a DRAM fault or one of the 74LS157 ... board is run with the ROM chip removed?

    [B ...
    1024MAK 1024MAK February 2014 Hardware
  • Issue 3B suddenly goes black and whiteAnother 3B I have here had a faulty ULA, swapped that out for another and hurrah! Works! New keyboard membrane and composite mod later I load a game…

    ... stripes indicate an address line fault where the offending line can ... think both the Z80 and ROM are fine (but ready to ...
    balford balford February 2014 Hardware
  • My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …

    I think it's hanging on ROM 0 so he can't run anything. It's my fault for not reading properly and derailing the thread!
    guesser guesser February 2014 Hardware
  • My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …

    ... return FF's, and the ROM will give up and assume ... possible to hang if the ROM thinks that there's a ... )

    Turning to the fault finding/repair, I'd start ...
    balford balford February 2014 Hardware
  • Grey +2 DiedHi all, Thrashing my +2 playing Mugsy last night and it did this... [URL="https://m.flickr.com/photos/83515822@N05/13012551693/lightbox/"]https://m…

    ... 128K machines)
    [*]If the ROM produces sensible results, interpret the ... the oscilloscope. At this point fault finding is very much dependent ...
    balford balford March 2014 Hardware
  • Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …

    ... />
    Yes, most likely a fault with one or more of ... , the Z80 CPU and the ROM are likely okay. The fact ...
    1024MAK 1024MAK March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... (ruling out the CPU and ROM), I think we can narrow ... the system to narrow the fault down further.

    To ...
    balford balford March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... (ruling out the CPU and ROM), I think we can narrow ... the system to narrow the fault down further.

    To ... up. Thankfully this kind of fault is not that common :)
    1024MAK 1024MAK March 2014 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... RAM test that the ROM program does is just ...
    Some faults allow the ROM program to decide that the ... less likely a logic chip fault).

    The ... " RAM. So sometimes the ROM program gets as far as ... before the "upper" RAM fault causes the CPU to read ...
    1024MAK 1024MAK April 2014 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... RAM test that the ROM program does is just ...
    Some faults allow the ROM program to decide that the ... less likely a logic chip fault).

    The ... " RAM. So sometimes the ROM program gets as far as ... before the "upper" RAM fault causes the CPU to read ...
    Brian Brian April 2014 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... three HALT instructions in the ROM code, but after start-up ... three HALT instructions, as the ROM program should be in a ... location(s) due to a fault with the address bus, is ...
    1024MAK 1024MAK April 2014 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... three HALT instructions in the ROM code, but after start-up ... three HALT instructions, as the ROM program should be in a ... location(s) due to a fault with the address bus, is ...
    Brian Brian April 2014 Hardware
<1…12131415161718…34>

Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
    dmsmith on 11:22PM
  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on 9:55PM
  • Goodbye Z80
    moggy on 9:07PM
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on 6:29PM
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on 6:17PM
  • I am currently watching.....
    Antiriad2097 on 5:05PM
  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

HitBox

Word Docs Hits
rom 15.6K 29.7K
fault 4.2K 4.8K

Related Threads

  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi,<br /> <br /> I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k).<br /> But when I …
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php<br /> <br /> I found the following code:<br /> [code]<br /> CHADD equ 23645 ; Location of…
  • Microdrive fault.I guess some of you may know this...<br /> <br /> My microdrive has a problem: the motor starts running as soon as I plug the computer in, and won't …
  • New WoS CD-ROM Project[url="http://neuro.zensoft.net/woscd/"]http://neuro.zensoft.net/woscd/[/url]<br /> <br /> I'm about to embark on an ambitious project ... to create n…
  • Emulators and ROM'sHi - This is my first post here, although I have been visiting WoS for ages....<br /> I have been on quite a few multi-platform sites that offer down…
  • ROM cartridgeI forgot, I'm also after a cardridge to fit into my RAM Turbo interface, mainly to see if it works really. An ultimate one would be nice, but would …
  • Spectrum ROMI downloaded some text files (they are actually the spectrum ROM files but in text) which can be compiled using TASM (or soemthing). I read on WOS th…
  • Spectrum +3 fault - flashing screen on power onHi ive just bought a +3<br /> When I power it on the power led and<br /> disk drive led come on.<br /> The screen just flashes black and white around…
  • Rom Cartridges Wanted - ?25 to ?35 for each title!Hi<br /> <br /> I am after any Sinclair Interface 2 Rom Cartridges that anyone wants to part with! I will pay ?35 for any Ultimate title or ?25 for t…

Related Searches

  • betadisk rom
  • betadisk rom line
  • alternative rom
  • rom
  • rom defekt
  • rom substitute
  • rom spectrum 128k 2
  • 2a new rom
  • forth rom
  • 128k rom
  • rom 128k pentagon
  • rom peek 128k pentagon
  • rom peek 128k pentagon 004c
  • identify pentagon 48k 128k rom peek
  • peek rom identify model
  • peek rom detect model 48k 128k 3 pentagon
  • ami rom
  • ami rom 48k
  • ami rom korea
  • rom fault

Copyright © 2024 World of Spectrum