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<1…20212223242526…34>
  • 128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…

    [QUOTE=netomc;188312]
    Hi Gods
    Thanks for PCB image and that ULA looks the same as one on my board ...
    [/QUOTE]

    It's the french version, without PAL coder/modulator and yes, it's the same ULA chip !
    Gods Gods May 2007 Hardware
  • Problems with TS2068sI bought 2 TS2068s, and this is what's happening: 1st computer: -The tv output doesn't work. The composite video output does* -The '7' key is dead.…

    ... 't. Different revisions of the PCB might have different value coils ...
    Winston Winston May 2007 Hardware
  • ZXSpin 0.62 Available nowAs promised (and only a [i]little[/i] past the deadline) here is the latest version of ZXSpin. Many bugs have been fixed, and a few new features add…

    ... is Velesoft's DataGear - small PCB which is put inside your ...
    omega omega May 2007 Emulators
  • Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…

    ... , with expansion slot. I beleive PCB can be retraced to fit ...
    Sonic Sonic May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    I have sent you a pm, though i don't know how to build a pcb. Anyway, there's one ic that has it's reference deliberatedly erased.
    odious odious May 2007 Hardware
  • InterfaceHi I'm building a spectrum emulator. I've tried to build it as modular as possible, for example I have a zx class that have input and output devices…

    ... />
    On the Spectrum's PCB, there is some logic that ...
    Winston Winston May 2007 Emulators
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... in a scan of both PCB sides, the circuit *could* be ...
    Marcelo Marcelo May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... (in the Richard Stallman sense) PCB design tools that will output ... can be sent to a PCB maker like Olimex who will ... one eurocard sized piece of PCB, which would probably make them ...
    Winston Winston May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... of the eprom (VCC) - (the pcb has a pad to choose ... the components and scan the pcb if this seems confusing.
    odious odious May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... of the eprom (VCC) - (the pcb has a pad to choose ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... />
    Before modifying the cart pcb, ill see if i can ...
    odious odious May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... manufacturing, online printing and online pcb manufacturing...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Hardware
  • Why the name "8-bit computer"?The Spectrum was called an 8-bit computer, but what does that mean? For modern hardware and operating systems (32 or 64-bit) it seems to be the poss…

    ... case, the keyboard, the main PCB, the power supply, Z80 processor ...
    DEATH DEATH May 2007 Development
  • Joystick interfacesWhich interfaces are both upright like the Kempston one: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000220[/url] But also have a throug…

    Have you tried Olimex for PCB making? I've never had ... - US$35 for a 160x100mm PCB (so if you can panelize ... get two interfaces onto the PCB, you'll be able to ... get the PCB done for half that each ... good idea to look for PCB makers who price in dollars ...
    Winston Winston May 2007 Hardware
  • Joystick interfacesWhich interfaces are both upright like the Kempston one: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000220[/url] But also have a throug…

    ... exactly what I mean. The PCB would be 70mm x 25mm ...
    DEATH DEATH May 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... available for download for the PCB layout.
    Winston Winston May 2007 Hardware
  • Mebrane fix or LOAD"" Poke equivelantHi!! I bought a rubber speccy from a guy on Ebay. Well,lots of buttons dont work,including J :( Two questions... *Is there a way to have a quick me…

    ... contacts with pads on the PCB. They also can be covered ...
    Sonic Sonic May 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... I better start looking at PCB factories then :-) It takes too ... design is to be "homebuilt PCB friendly" which will keep the ... cost of the PCB down, which is by far ...
    Winston Winston May 2007 Hardware
  • Why the name "8-bit computer"?The Spectrum was called an 8-bit computer, but what does that mean? For modern hardware and operating systems (32 or 64-bit) it seems to be the poss…

    ... case, the keyboard, the main PCB, the power supply, Z80 processor ...
    neoncherry neoncherry May 2007 Development
  • Extend mebrane stripes?Hi! i was messing with one my rubber speccies trying to do the composite hack BUT I was not carefull and I cut the mebrane stripes in a position th…

    ... /s from the Spectrum main PCB. Solder a length of ribbon ... shorting out on the main PCB

    Be more careful ...
    DEATH DEATH May 2007 Hardware
  • Whatever happened to the Mikro Plus?Anyone know what became of this? [url]http://www.worldofspectrum.org/showmag.cgi?mag=Crash/Issue19/Pages/Crash1900020.jpg[/url] It was supposed to …

    ... to learn something more about PCB layout.
    Winston Winston May 2007 Hardware
  • Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…

    ... some bad juju to a PCB trace also.

    check ...
    Winston Winston May 2007 Hardware
  • Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…

    ... some bad juju to a PCB trace also.[/QUOTE]

    PCB that was damaged.

    Avian Avian May 2007 Hardware
  • Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…

    ... high resistance short on the PCB, yeah, I'd be suspecting ...
    Winston Winston May 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... there any news on the PCB's? New versions planned? Did ...
    georgedb georgedb June 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... /> I'm currently checking out PCB manufacturers since it takes far ... design an 'Issue 2' for PCB manufacture to make the board ... thing at home. Getting a PCB made is quite expensive, and ...
    Winston Winston June 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... , etc.!!

    About the PCB, I heard some good stories ...
    georgedb georgedb June 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... of 1 eurocard panel, each PCB would work out at around ...
    Winston Winston June 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    Hi

    I have ordered a PCB from Futerlec and will let you all know when it arrives and post some Pictures, should be in about 10 days.

    Regards

    Martin
    Martin Baugh Martin Baugh June 2007 Hardware
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... ' things about the gerbers - some PCB places have standard drill sizes ...
    Winston Winston June 2007 Hardware
<1…20212223242526…34>

Latest Posts

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    John Elliott on April 21
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