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<1234567…34>
  • RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…

    ... ,

    i burn this ROM from here

    [url ... try to diagnostic a probably RAM fault on my +2 grey
    xaris_sm xaris_sm March 2013 Hardware
  • Amstrad +2 Diagnostic BoardCan anybody help I wish to buy the Diagnostic Board that connects to the I/O strip at the back of the Amstrad ZX Spectrum +2. Many thanks Martin

    Can anybody help I wish to buy the Diagnostic Board that connects to the I/O strip at the back of the Amstrad ZX Spectrum +2.
    Many thanks
    Martin
    Martin Baugh Martin Baugh March 2007 Wanted
  • 2 Spectrum ROM Carts, IF2 & some ZX81 stuffI've just listed a few [URL="http://shop.ebay.co.uk/shineyflower/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340"]items on ebay[/URL] all 99p start …

    ... ZX-Spectrum_W0QQitemZ300421704185QQcmdZViewItemQQptZUK_VintageComputing_RL?hash=item45f28769f9"]Backgammon ROM[/URL]
    [URL ... .uk/Sinclair-ZX-Interface-2-ROM-Joystick-Ports_W0QQitemZ300421711617QQcmdZViewItemQQptZUK_VintageComputing_RL?hash=item45f2878701 ...
    Hairy Hairy April 2010 Sales
  • 48K Issue 3B ROM to EPROM methodsHi folks, While fixing up a completely dead Commodore PET I needed a way of testing the 4116 RAM chips that make up its 32K, some googling found a…

    ... containing the 48K ROM and a diagnostic ROM from Paul Farrow ... 's 2 ways I've found of doing the ROM - ... />
    Sanity check ROM burner (MQP Pinmaster 48) by ... 20 always high, DMM shows 2.4V.

    ... the 27c256 with stock ROM (previous attempt had been ...
    witchy witchy December 2015 Hardware
  • doubt about swapping ULA in an issue 2 boardIs it possible to swap a 6C001E-6 ULA type with a 5C112E ? I have this issue 2 board that is not booting, it shows me a black border with horizont…

    ... />
    I have this issue 2 board that is not booting ... CPU problem, or ULA.
    Diagnostic ROM doesn't work on this ... I have another working issue 2 machine.

    The broken ...
    gleegum gleegum September 2020 Hardware
  • So who needs a 3.5 GHz dual core Core 2 Duo......when a 6MHz Z80 will do for a multi-user server? After hacking about more with the socket library - I had 4 simultaneous users on ALIAC-2 via eth…

    ... 4 simultaneous users on ALIAC-2 via ethernet! Real, actual 4 ... when I assemble the ALIAC-2's ROM, rather than the usual ... ). It ran for at least 2 hours before crashing, too :-)
    ROM.

    The next step ...
    Winston Winston November 2007 Hardware
  • Pentagon 1024SL 2.2 kits (maybe?)Hey there, I'm currently getting my Pentagon 1024SL 2.2 back to work and while looking for spare ICs I found a really cheap source for CPLDs and TTLs…

    ... currently getting my Pentagon 1024SL 2.2 back to work and while ... -8MHz
    3€ VG93
    2€ ROM (blank or 7€ programmed since ...
    Shockwav3 Shockwav3 March 2013 Sales
  • 404 for Retroleum's daignostic ROM: Request.[url]http://www.retroleum.co.uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum/[/url] I'm getting access denied when I try to downl…

    ... .co.uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum ... I try to download the Diagnostic ROM, I've just emailed the ...
    Korinel Korinel October 2014 Hardware
  • Horace and the Spiders and Planetoids ROM cartsOffloading another 2 rare ROM carts, in pretty good nick. £60 for both seem fair? [img]https://s15.postimg.org/y9mibpyrf/2017-05-02-1095.jpg[/i…

    Offloading another 2 rare ROM carts, in pretty good nick.

    £60 for both seem fair?

    [img]https://s15.postimg.org/y9mibpyrf/2017-05-02-1095.jpg[/img]

    [img]https://s2.postimg.org/eloo6fdqh/hats.jpg[/img]
    daveysludge daveysludge May 2017 Sales
  • Fixing a poorly Issue 3 - Odd faults.Here's one for you Spectrum fixers, I warn you it's a long one. I've spent a couple hours this evening doing several repairs on a rubber keyed Speccy…

    ... that point I ran the diagnostic rom via SMART card interface. It ... detected the 2 previously replaced lower ram IC ... 11, soldered in 2 sockets, and fitted 2 new lower ram IC ... 's(NEC D416C-2). Tested again on the TV ...
    Your Spec-chum Your Spec-chum July 2018 Hardware
  • Another Spectrum is brought back to life.Hi Spec-chums. I have been having bit of busy afternoon with repairs today. I've brought back to life a Panasonic Super-VHS recorder, and more intere…

    ... and more interesting an issue 2 16k ZX Spectrum board. ... The issue 2 board was part several spares ... set about checking continuity, finding 2 pins without continuity. It' ... Smartcard interface and running the diagnostic rom, revealed IC10 to be ...
    Your Spec-chum Your Spec-chum August 2019 Hardware
  • edge connector... breadboard / external romso i purchased a breadboard on a edge connector.. to experiment with .. my first task to make a external rom boot (32k eeprom) so i think i got every…

    ... task to make a external rom boot (32k eeprom) so ... to romcs to disable onboard rom : using a 74hc32n as ... rd to pin 20 of rom (to make sure they are ... a bank selector (the rom file was burn on both ... of the actual rom (which was a diagnostic rom).. so my thoughts ...
    mark8bit mark8bit October 2020 Hardware
  • what is this crazy modfound a speccy in my loft yesterday,and it seems to have an external heatsink modd i havent the foggiest about speccys heres a few pics [url]http://i…

    ... think) so i ran fruitcakes diagnostic ROM and got this screen
    2,4 and 6 are reporting ...
    Macc Macc January 2012 Hardware
  • Help me resurrecting a 128KHello to everybody. I'm really struggling along a repair of a standard 128K a friend of mine handed me over some (ok, actually a lot of) time ago. A…

    ... some nonsense.

    2) @roko: you were right. This ... back together, the diagnosis ROM greeted me with a properly ... from Jan and burn a diagnostic ROM, and from Mark, Roko ... for putting together such great diagnostic ROM.

    Really many, ...
    Falco-F8L Falco-F8L October 2012 Hardware
  • another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…

    ... .

    The setup: a +2 board with two ram chips ... Turbo with Paul Farrow's diagnostic rom.

    I tested the ...
    bverstee bverstee May 2013 Hardware
  • Testing a +2I recently picked up a non functioning Spectrum +2 Grey (Issue 3 board?), and am just beginning to go through and see what needs to be done to it. I …

    ... up a non functioning Spectrum +2 Grey (Issue 3 board?), ... function testing

    2. Check boot functions
    a ... contacts, ULA function, Z80 function, ROM function, capacitors

    ... function
    a. Use diagnostic rom (I use Paul Farrow's ...
    bverstee bverstee June 2013 Hardware
  • Retroleum SMART Card InterfaceHi guys, Over the last few months I've been designing an interface board for the Spectrum 48 - seems to be all the rage :) It started off as simple …

    ... very well.

    The diagnostic ROM managed to help fix one ... my broken Spectrums (one down, 2 to go!). Much easier than ... boot straight into the test ROM. That came in very handy ...
    Tekno Venus Tekno Venus February 2015 Hardware
  • where to find Harlequin rev. F all mods till now ?Hi all :) because no more broken speccys around for now, is time to build first of my Harlequin's rev F, I looking in forums and look at Ingo posts…

    ... j11 jumper on j9 (leg 2-3) put 5v on ground ... .jpg[/img]

    nice diagnostic rom in second part in eprom ...
    gorski gorski August 2015 Hardware
  • Upper memory issueZX Spectrum 48K, issue 2, boots fine. Lower RAM OK. When tested with the new test ROM in the Diagboard, for all upper RAM tests "FAIL" is shown. I…

    ... zx-diagnostics or some other diagnostic ROM?

    I'd be ... actually healthy for an Issue 2, I've seen some as ...
    balford balford September 2016 Hardware
  • Troubleshooting RAM IC's on Spectrum +2 Grey?Got myself a grey +2 but at startup it shows something very similar to this: [img]https://preview.ibb.co/mmai5F/2_Ram_Fault.png[/img] I also su…

    ... />
    [b]Retroleum - A Diagnostic ROM Image For The ZX Spectrum ... .uk/electronics-articles/a-diagnostic-rom-image-for-the-zx- ... now tests 128k and Grey +2
    http://www.fruitcake.plus ... .org/forums/discussion/45391/diagnostic-board-winston-designed-pcb- ...
    1024MAK 1024MAK August 2017 Hardware
  • 16pf Capcitors for C72/C73 issue 3b. Can I use 18pf?Looking at the service manual it states to use a 16pf ceramic disc capacitor in positions C72 and C73 on issue 3b boards. Is this very critical in bo…

    ... % tolerance except for 2 resistors where the manual ... states 2% tolerance, and went ... save a penny or 2 here and there ... of fitting a switchable rom replacement board from Retroleum ... the standard Sinclair rom, and a diagnostic rom. But hopefully ...
    Your Spec-chum Your Spec-chum October 2021 Hardware
  • ZX PC Interface : The manual, schematics and more info... ZX &lt;-> PC Interface ------------------- Contents 1) The ZX &lt;-> PC Interface 1.1) What is it? 1.2) What does it do? 2) Install…

    ... .1) Schematics
    3.2) Altered ROM-routines
    3.3) PC ... / Distribution
    4.1) ROM
    4.2) Interface

    5 ... /> [/code]

    3.2) Altered ROM-routines

    The blockload ...
    Dr BEEP Dr BEEP December 2002 Sinclair Miscellaneous
  • ZX PC InterfaceZX &lt;-> PC Interface Contents 1) The ZX &lt;-> PC Interface 1.1) What is it? 1.2) What does it do? 2) Installation 2.1) The softwa…

    ... Distribution
    5.1) ROM
    4.2) Interface
    5.3 ... [/code]

    4.2) Altered ROM-routines in the EPROM.
    original ROM, which makes headerless loading still ... Distribution

    5.1) ROM

    The copyright of ...
    Dr BEEP Dr BEEP January 2003 Announcements
  • TZX and the ZX81Evenin All. EightyOne is now is a state where I can support a more descriptive tape format. I know how some people have been calling for tzx suppor…

    ... tapes use the standard ROM routine. So, for ...
    ZX80 with ZX81 ROM retro fitted 1k - 64k ... ZX81

    "ROM/RAM type add-ons" gets ... 0 ZX80 ROM
    1 ZX81 ROM
    2 ASZMIC ROM
    ... 3 TREE-FORTH ROM
    ...
    MikeW MikeW September 2004 Emulators
  • Problems with games on +2AHi! I have a +2A now and have problems running some games on it. I tought the resistor fix (to give it some kind of "floating bus" as the original 4…

    ... the roms from the grey +2 (both ROM sockets changed) would help ...
    Tom-Cat Tom-Cat July 2005 Games
  • Replacing +2/+3 rom with eeprom?Hi I want to change my +2a to +3e (or +2e). Garry mentions that 27C256 eprom can be used. I would like to use 28C256 instead. Pins are not all the s…

    Hi

    I want to change my +2a to +3e (or +2e). Garry mentions that 27C256 eprom can be used. I would like to use 28C256 instead. Pins are not all the same (pin 1 and pin 27). I have tried to connect eeprom pin 1 (A14) to socket's pin 27 and ...
    Timppa Timppa August 2005 Sinclair Miscellaneous
  • Desperately need help with .TAP file bug (probably a wrong value error)I'm trying to create a .tap file with Java and have been following the specification at [url]http://www.zxmodules.de/fileformats/tapformat.html[/url…

    ... ByteBuffer dataDataBlock = ByteBuffer.allocate(2+basic.length);
    dataDataBlock. ... /> ByteBuffer headerDataBlock = ByteBuffer.allocate(2+header.length);
    headerDataBlock.order ... .allocate(b.length+2);

    // Standard ROM marker
    ...
    brownb2 brownb2 May 2009 Development
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... />
    Bit 4: ROM select. ROM 0 is the 128k editor ... br /> Bit 2: In normal mode, high bit of ROM selection. The ... 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    2. OUT #1FFD, 0 (128K editor rom)

    bverstee bverstee April 2010 Hardware
  • JSpeccy with SEBasicHi, Just a quick post to update everyone on JSpeccy. A new version is out which has a couple of new machine types: Spectrum 48K + SEBasic v2.18 Sp…

    ... the BBC BASIC ROM to the SEBasic 2.18 ROM.

    Some ... t10.html[/URL]
    SEBasic 2.18 information here - [URL="http ... ://sebasic.freeforums.org/version-2-18-released-t16.html"]http ... ://sebasic.freeforums.org/version-2-18-released-t16.html[/URL ...
    polomint polomint October 2010 Emulators
<1234567…34>

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