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Search Again :: Adv Search 1000 results in 0.043s
<1234567…34>
  • No video output from Spectrum +2 (light grey)Got a strange issue with my Spectrum +2 light grey edition. It was working fine then all of sudden it outputs a black screen while I was using it wit…

    Check the +12V supply to IC2 (TEA 2000 ... to see if you have +12V on the positive leg of ... the voltage on C41 is missing or low (below 10V), renew C22 ( ... br />
    If still no +12V, remove TR9 from the board ... now test the machine, the +12V rail will be back and ...
    1024MAK 1024MAK May 2017 Hardware
  • ?8912 or 8912A?Hi! I've just changed a defective AY-3-8912A in a +3. Tried a spare 8912 from my "Vectrex spare box", and seemed to work ok: from +3 BASIC I played a…

    ... notes were bad played, while low pich notes were ok.

    Is anything I'm missing, or it's just that the ...
    mcleod_ideafix mcleod_ideafix July 2009 Hardware
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ... power supplies, each chip needs 12V, 5V and -5V and if ... the upper address line high or low the chip would work as ... to ties this line high or low depending on what batch of ... , the suspect chip was was missing its connection to the pullup ...
    Womble Womble August 2010 Hardware
  • 12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…

    ... are all right but the 12V line measures roughly two volts ... the other place that uses 12V is the LM1889, which is ... LM1889 pull the voltage down? Or should I look into R59 ...
    protek protek July 2020 Hardware
  • 48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…

    ... missing the 12v line.

    Before trying to source another ULA or ... got working +5v, -5v and +12v rails.

    The fuzzy ... a problem with the 12v supply being low, you get blocky graphics ... (because the LM1889 uses the 12v supply too).

    ...
    JeffB JeffB April 2013 Hardware
  • Dead issue 3b with black and white barsHi all, I've been donated an issue 3b which has some nice black and white bars with a few flashing blocks. I've done a few RAM tests and could spo…

    ... +12V supplies are present. If the -5V is shorted out, or missing, or worse ... , if the -5V supply is missing and internal ... failure rated drops to very low levels. For example, it is ...
    1024MAK 1024MAK December 2015 Hardware
  • Games which are either missing or not allowed...Is there any way of getting games such as Desperado (Gun Smoke) or Street Fighter II for Spectrum? Just wondering...

    Is there any way of getting games such as Desperado (Gun Smoke) or Street Fighter II for Spectrum? Just wondering...
    Danae's Fan #1 Danae's Fan #1 April 2010 Games
  • Love Story from Titanic (missing credit)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0013018&loadpics=3"]This game[/URL] seems to have a few things missing, or at least according …

    ... to have a few things missing, or at least according to the ... .png"]map[/URL])

    Missing credit:
    [URL="http://www ...
    ZnorXman ZnorXman January 2011 Infoseek database
  • Travel with Trashmanits appears there were 2 versions released of "travel with trashman" although the physical cassettes look pretty much idenetical, 1 was a fast load (…

    ... A = Side B ? or did the dumper just leave ... they decide its the same or over look something
    or do you mean it generates ... table and 700 are missing hashs ive not yet ... native sound generation calls or low level screen drawing so ...
    Richard_Butler Richard_Butler July 2009 Infoseek database
  • Double Dragon Forever - Beta version releasedNot strictly Speccy related but I hope no one minds me posting this... Double Dragon Forver, which has been in development forever has reached it's …

    ... 's not meant for older, or low-end systems.

    or low-end onboard GPUs, specially ... is either actually missing a file, or it's the ... because it has a low limitation on texture sizes. ... either he is missing a file, or it's the ...
    Swainy Swainy August 2010 Announcements
  • Spectrum not working, can anyone help this lady?[URL="http://www.retrogamer.net/forum/viewtopic.php?f=6&t=29734#p674152"]http://www.retrogamer.net/forum/viewtopic.php?f=6&t=29734#p674152[/URL]

    ... pins: +5V, +12V and -5V. If +12V or -5V is missing or wrong value, transistor ... a working one at eBay or SellMyRetro.
    - Find someone close ...
    mcleod_ideafix mcleod_ideafix July 2011 Sinclair Miscellaneous
  • Inlay Project DiscussionAll, It's time this project was actually started in anger. The aim of this thread is to find out what every wants from it and the standards that sh…

    ... decision to only make low-DPI scans available on ... no longer a concern, or will these high-DPI ... able to obtain them or upscale modest scans. Unfortunately ... going to notice they're missing or inconsistent.
    [*]Look ... if you want though, or convince a friend to ...
    Bangstick Bangstick September 2011 Support files
  • Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …

    ... board), you should have +5V, +12V and -5V there. If not ... sensitive to missing voltages. When -5 and/or +12 is missing (or way outside ... gone, followed quickly by one or more 4116 RAMs dying too ... you have a clock signal or not). When you have a ...
    RetroTechie RetroTechie February 2012 Hardware
  • Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …

    ... board), you should have +5V, +12V and -5V there. If not ... sensitive to missing voltages. When -5 and/or +12 is missing (or way outside ... gone, followed quickly by one or more 4116 RAMs dying too ... you have a clock signal or not). When you have a ...
    dynaflux dynaflux February 2012 Hardware
  • RFC: Hardware Documentation ProjectI've noticed quite a few threads recently about missing schematics and suchlike. I've also been thinking about the low quality of some of the schemat…

    ... [/url]

    Noise in 12V rail supply that affect the ... -but-not-because-ula-cpu-or-low-memory[/url]

    A ... -memory-or-how-to-use-jetpac-rom-version-to-diagnose-low-memory ...
    mcleod_ideafix mcleod_ideafix March 2012 Sinclair Miscellaneous
  • Getting absolutely no video from a 128+I'm trying to get a friend's toastrack 128 to show video and I'm not having any luck. I'm in the US, so I don't have access to any TVs that can take …

    Bet it's the 12V missing: the TEA2000 needs 12V.

    Get [URL ... should carry the 12V.

    Mostly tr4 or tr5 is broken ...
    bverstee bverstee April 2012 Hardware
  • Query about memorySo I know this has been asked a lot and I beg your brief indulgence. I have scanned through a lot of old threads already but I'm trying to improve m…

    ... "top" 32k DRAM chips is missing or does not respond, the ROM ... />
    Address 23732 is the low byte. Address 23733 is the ... for a 16k machine...
    Or 128 x 256 + 0 = 32768 ...
    1024MAK 1024MAK October 2012 Hardware
  • Announcing MetroSpec: ZX Spectrum 16/48K Emulator for Windows Phone 7 / 8Hi All, I'm the author of MetroSpec, a ZX Spectrum 16/48K emulator for Windows Phone 7 / 8. MetroSpec V1.3 was actually launched in September 2012, …

    ... 't play correctly, and was missing the low notes. The in game ... (not that I know of, or have had reports of any ... due in the next day or so and has been in ...
    GlennEdwards GlennEdwards March 2013 Emulators
  • Keyboard has a life of its own?I just received a Spectrum+ Issue 4S, where I had to replace the MIC connector and I also did the Composite mod. So far it works just fine, but when …

    ... , are the +5V, -5V and +12V supplies in the correct range ... a multimeter on AC mV or better, use a oscilloscope).
    Using the diode test range (or low resistance range if you don ... 0.6 to 0.7V (or low resistance reading) the other way ...
    1024MAK 1024MAK August 2013 Hardware
  • ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…

    ... TR8 detects that the +12V line is low, the increased voltage difference ... and the voltage is +12V or greater, that will either cause ... to reduce the power output or to "switch off" TR9 ... completely OR will leave TR9 partly conducting ...
    1024MAK 1024MAK August 2013 Hardware
  • Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…

    ... IC23 is a plain quad OR chip, so again, glue ... gate from IC24 and one OR gate from IC23 -- probably ... Spectrum, either link 3 or 4 would have to be ... of the '157 either high or low. Since we want to ... chips, the only thing missing to implement paging through OUT ...
    skagon skagon October 2013 Hardware
  • ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…

    ... missing or non-functional lower RAM, which you'll get without the +12v ... colour display either without the +12v rail.

    I would ...
    balford balford July 2014 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... digital logic does not like 12V DC (or AC for that matter ... if they change the design, or units are hand built...
    Use a multimeter on a low resistance range to confirm which ... " the code from any ROMs or EPROMs, let me know. I ...
    1024MAK 1024MAK October 2015 Hardware
  • I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…

    ... scart connector end I read 12v between pin 16 and 18 ... reads 12V, the 75 Ohm resistor inside the converter is either missing or ...
    Ast_A_Moore Ast_A_Moore September 2017 Hardware
  • I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…

    ... scart connector end I read 12v between pin 16 and 18 ... reads 12V, the 75 Ohm resistor inside the converter is either missing or ...
    ivanb303 ivanb303 September 2017 Hardware
  • Help with Su 20 and issues to swap /beg for to finish 1st 50!Got hold of issue 20 but with no cover, I can get an image of the front cover, but could someone tell me if the Kempston advert on page 2 and the qui…

    ... same as the issue 19 or issue 21 variations. (will save ... these are the main issues missing or incomplete in the 1st 50 ...
    Mort! Mort! February 2004 MIA/STP/SDP
  • Charlie Chaplin by US GoldI can't seem to find 'Charlie Chaplin' by US Gold on the archive, is it missing or am I going blind?

    I can't seem to find 'Charlie Chaplin' by US Gold on the archive, is it missing or am I going blind?
    Swainy Swainy February 2005 MIA/STP/SDP
  • Z80 ToolkitHi guys, As I was looking through my Spectrum games that I am giving away I found my beloved Z80 toolkit tape! It's by LERM software. Does anyone w…

    ... ability to load into high or low memory! I think the high ...
    Kazor Kazor April 2005 Development
  • h.e.r.o clonesi remeber i liked a lot this game, i see is missing or is distrib. denied in the database ..so is there any good clone of this game?? thanks..

    i remeber i liked a lot this game, i see is missing or is distrib. denied in the database ..so is there any good clone of this game??
    thanks..
    untitled untitled December 2005 Games
  • Komplex CityLo lo all.. Ive just noticed that both the .tzx and .tap file for this game , look as if they are in fact "Komplex" , the 1st in the games by legend…

    Lo lo all..

    Ive just noticed that both the .tzx and .tap file for this game , look as if they are in fact "Komplex" , the 1st in the games by legend....
    Seems that Komplex City itself is missing...

    Or mebe I missed Summit :)
    Sard Sard January 2006 Games
<1234567…34>

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