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Search Again :: Adv Search 1000 results in 0.018s
<1234567…34>
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... knowledge to make an ideal TEST SPECTRUM PCB so rare chips ... to make a good Spectrum Test Board and what need to be ... chips? I have a candidate board which has a lot of ... on it . A well socketed board is probably a good start ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • Wanted: broken motherboard!Does anyone have a motherboard for a 48k (any issue) that is currently not working? I'm looking to set up a test board for chips, and would like to g…

    ... looking to set up a test board for chips, and would like ... throughout.... If you have a board that is not working, for ...
    Simon_Carr Simon_Carr August 2013 Wanted
  • toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…

    ... PCB for a Speccy diagnostic board this weekend since the weather ... have a broken Issue 4S board that could do with some ... DIY kit form.
    [U]Test board:[/U]
    What about LED ... NEEDS a specialized part). The test board simply should not.

    Marcelo Marcelo March 2007 Hardware
  • Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…

    ... the fault.

    My test board's address decoder uses IORQ ... always work with the board. I used this test program:

    test board, and connected the enable line ... 't actually needed for my test board after all, since WR doesn ...
    Winston Winston April 2007 Hardware
  • Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…

    ... the fault.
    My test board's address decoder uses ... work with the board. I used this test program:
    ... M1 line on my test board, and connected the enable ... actually needed for my test board after all, since WR ... be jumpered, so the board can be used also ...
    Marcelo Marcelo April 2007 Hardware
  • RGB-Output (interface) for rubber 48k / Spectrum+I wonder if there is interest for a small RGB-interface for the rubber 48 k / Spectrum+. I developed a schematic using a very small number of parts.…

    ... nearly 60 parts on the test board. Nevertheless using SMD parts this ...
    ingo ingo April 2009 Hardware
  • Pera Putnik's RGB interfaceI am sure some (if not many) of you will have seen Pera Putnik's RGB interface [URL="http://members.tripod.com/%7Epiters/uvyrgb.htm"]circuit diagram…

    ... a 48k+ with issue 4b board. The picture of my rubber ... different solution which I will test. If I am satisfied with ... of the ULA signals. The test board (contains about 50 parts, one ...
    ingo ingo May 2009 Hardware
  • +3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…

    ... , you need an external test board with its own test ROM (that doesn ...
    Winston Winston September 2009 Hardware
  • MB02+IDE aliveLast weekend I finished soldering and testing my MB02+IDE. All items work perfectly on +2 grey, on +2A, on 128k heatsink and on 48k Issue2 and 3b tes…

    ... rises the price of the board.
    But compared with other ... did not do a further test board but ordered the whole lot ... decided to design an additional board - a special CF-IDE converter ... LEDs. I gave that additional board to the interface without additional ...
    ingo ingo January 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    Checked it: the test board I'm currently using has the wires set to 'N'.
    But I'm sure I tested it on other boards too.

    Every board with a NEC rom I had in hands had troubles with the DivIDE 57c.
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... =bverstee;676239]Checked it: the test board I'm currently using has ... boards too.

    Every board with a NEC rom I ...
    roko roko January 2013 Hardware
  • ZX Spectrum Microvision - REAL retro setup!Some fun pictures. In reality the picture looks some better and more readible, but the camera doesn't pick it up well. [IMG]http://benophetinternet.…

    These I need to test taken from disassembled boards.
    ... .

    The board shown is my main test board.
    Closeup shows ...
    bverstee bverstee May 2013 Hardware
  • Wanted: broken motherboard!Does anyone have a motherboard for a 48k (any issue) that is currently not working? I'm looking to set up a test board for chips, and would like to g…

    ... looking to set up a test board for chips, and would like ... throughout.... If you have a board that is not working, for ... using a +2 or toastrack board, as in a 128K ... use a 48K issue 3 board for 4116 chip testing, ... and a +2 board for 4164 chip testing.
    bverstee bverstee September 2013 Wanted
  • Some problems with 2 ZX Specturm board'sHi, last week i got some ZX Spectrum stuff. Also 2 ZX Spectrum 48K's, one in the orginal case the anoter one in a DK'tronixs case. Both have problem'…

    ... another things.

    I test IC6 again and this are ... />
    About the issue 2 board, after tweaking i got some ... , mayby i can use this board as a test board for later testing.
    Reinier Reinier November 2013 Hardware
  • Spectrum +2 grey RF removalHi everyone. If I were to remove RF output from a +2, just intending to keep Composite video out from TEA2000, then all the components that make t…

    ... IC's. Maybe on another board I will try something with ... .uk/spec_ad725/

    The test board I made was connected directly ...
    Peter Mulholland Peter Mulholland March 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... make this Spectrum into a TEST BOARD . but it will not be ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... board can do re functionality . What is the role of this TEST ... functionalty of a TEST Board is what this ... the elements for a test board and "things to ...
    1) A "breakout board " . What does this enable ? ... should the role of a TEST BOARD be?

    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... want to write on the board: use a piece of sticky ... . So that your nicely prepped test board doesn't care when the ... is plugged in.
    * On-board LED signalling "power on". Helpful ... insertion of peripherals while the board is powered.
    * Turned pin ...
    RetroTechie RetroTechie April 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... a previously working Issue 2 board that "came unstuck" around the ... Spectrum . It wont be a test board but it will have lots ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... /> 1) How to do a Test Board (discussed above)

    2 ... of the parts for the Test board . Well This depends on whether ... case up and store a Test Board

    9) How ... highest and lowest forms of test board?

    Phew made it ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    A test board is of some, but ... action on a board degrades that board (and component!) ... other components on the board, board itself, or even a ... board that you plug in the back, with built-in test ... soldered directly into a board, has more reliable contacts ...
    RetroTechie RetroTechie May 2017 Hardware
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    IMHO a Spectrum test board should have:
    [list ... links to configure the board to take all types ... links to configure the board to take either type ... .
    [*]Have suitable test points/sockets/pins so it ... .
    [*]And the board should be rock solid in ...
    1024MAK 1024MAK July 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    IMHO a Spectrum test board should have:
    [list ... links to configure the board to take all types ... links to configure the board to take either type ... .
    [*]Have suitable test points/sockets/pins so it ... .
    [*]And the board should be rock solid in ...
    1024MAK 1024MAK July 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... , The other "failed" Issue 2 Test board has a Traco but it ... ZIF sockets from the failed board
    harriusherbartio harriusherbartio July 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... />
    For test set-ups:-
    On a test board:
    [list=1 ... ZIP socket in a normal board, the set-up is the ... the socket on this normal board may be a stamped pin ...
    1024MAK 1024MAK July 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... Z80 which on the new Test board is above the main chip ...
    harriusherbartio harriusherbartio July 2017 Hardware
  • ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …

    ... which on the new Test board is above the main ... TR6 is included on the board layout. So I recommend ... of an issue 2 board where this has been ... .

    With test boards, I suggest mounting the ... link back to the Spectrum board. Only use enough cable ...
    1024MAK 1024MAK July 2017 Hardware
  • Spectrum +2 Test Software ROM BoardHi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot. Many thanks …

    Hi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot.

    Many thanks
    Martin
    Martin Baugh Martin Baugh February 2007 Wanted
  • Pentagon interface news from VELESOFTIt's from Xagon's board. It is about new interface for Speccy - it make Your comp compatible with Pentagon (and not only) and also it gives You up t…

    It's from Xagon's board.
    It is about ... Hi, I just translate Velesoft's message from Pandora.cz ... .
    VELESOFT wrote:
    ---------------------
    Finally ... ZX PROFI.

    VELESOFT
    (stupid translation by Factor6 ...
    Yerz Yerz June 2004 Sinclair Miscellaneous
<1234567…34>

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board 11.7K 16.2K
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