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  • Getting a +3 working again (keyboard & tape socket issues)So, as part of my Spectrum restoration project I will also try to tackle the problem child among my fleet, the +3. PROBLEM ONE: Ever since I firs…

    ... you test the PCB tracks (traces) between the connectors (keyboard "KBY3", joystick ...
    1024MAK 1024MAK February 2017 Hardware
  • Getting a +3 working again (keyboard & tape socket issues)So, as part of my Spectrum restoration project I will also try to tackle the problem child among my fleet, the +3. PROBLEM ONE: Ever since I firs…

    ... took it apart, examined the membrane, wiped the dust off, but ... I said one of the connectors was leaning over at a ...
    The Mighty Dopethrone The Mighty Dopethrone February 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... . Unfortunately, the pinout for the connectors is different, so you DO ... coming out :) (as opposed to membrane-like stuff). Those attributes alone ...
    RetroTechie RetroTechie February 2017 Hardware
  • Clamping Speccy InterfacesThere are a huge number of broken Speccy interfaces available . I came across one on Ebay recently said to be "partly working" or similar .Why are th…

    ... the PCB . Later I need to order a new keyboard membrane in ...
    harriusherbartio harriusherbartio February 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... the cable connector on the PCB)

    So I was ... 48k case (after redoing the PCB connectors) which will free up this ...
    harriusherbartio harriusherbartio 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 …

    ... the component side of the PCB with soldering iron on the ... Issue 3b board . The keyboard connectors were easy to do but ... memory chips . I decided this PCB is a useful reference for ...
    harriusherbartio harriusherbartio April 2017 Hardware
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... connect external LOAD and SAVE connectors to PCB of internal tape recorder ... the internal tape recorder or pcb - the external jacks links directly ...
    Renegade Renegade April 2017 Hardware
  • ZX Spectrum spare parts : "endangered" and functional "extinctions" only It struck me how some Spectrum spare parts or parts that were used with Spectrums and that were commonly available are no longer available . The em…

    ... declared above that the keyboard PCB connectors were were the best FIND ...
    harriusherbartio harriusherbartio May 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... the correct interface , recapping the PCB , getting the clamp to work ... filled" from the base . The connectors also seem to be more ...
    harriusherbartio harriusherbartio June 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 …

    ... they do not "spoil" the PCB connector . I have added a ... my one spare dodgy looking "membrane" .

    Well I could ... making me think that the PCB can be set up outside ...
    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 …

    ... soldered in a new LHS PCB connector I thought would check ... . I found a new 48k membrane and an old rubber mat ... the LEFT or RIGHT side PCB connector . The Right one is ... ot bodge up a new membrane with plastic especially as the ...
    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 …

    ... the LEFT or RIGHT side PCB connector.[/quote]

    Have ... . Leftovers of the cracked keyboard membrane could be removed with a ...
    Claudius Claudius July 2017 Hardware
  • ZX Spectrum spare parts : "endangered" and functional "extinctions" only It struck me how some Spectrum spare parts or parts that were used with Spectrums and that were commonly available are no longer available . The em…

    ... the above mentioned right side PCB keyboard membrane connector . Here is a ... part of connector , where the membrane is fed in. I do ...
    harriusherbartio harriusherbartio July 2017 Hardware
  • ZX Spectrum spare parts : "endangered" and functional "extinctions" only It struck me how some Spectrum spare parts or parts that were used with Spectrums and that were commonly available are no longer available . The em…

    ... these connectors are different . The pins that go through the pcb are ...
    harriusherbartio harriusherbartio July 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 …

    ... screen problem was cleared . The PCB keyboard sockets were a mess ... keyboard only partially works . Both PCB connectors have been replaced and different ...
    harriusherbartio harriusherbartio July 2017 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 …

    ... relatively unscratched (and the best PCB I have) . With "anti ... M3 bolts to secure the PCB as this stops "careless scratching ... worked . It means that the PCB can be separated/disconnected from ... to the modularization with Molex connectors that I used on the ...
    harriusherbartio harriusherbartio July 2017 Hardware
  • Recent hardware acquisitionsWell, not actually that recent but I've not had time to look at them until a few days ago... Two Speccy +'s. Both are semi alive. Both have semi d…

    ... a few points on the PCB / connectors to be sure at some ...
    spider spider August 2017 Chit chat
  • 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 …

    ... logo on power up) : the PCB appears OK but the keys ... right" for a working Spectrum PCB

    I decided to ... say an earlier Issue 2 PCB which I have had difficulty ... to see whether the Plus membrane is salvageable before a final ...
    harriusherbartio harriusherbartio August 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 …

    ... screen from it with the membrane it came with. This seem ... a very old cut back membrane . This time I got ... nothing fundamentally wrong with the PCB just TWO of the membranes ... long to figure out a membrane problem but why 2 membranes ... pay for a non working PCB!
    harriusherbartio harriusherbartio August 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 …

    ... may be good on edge connectors but on membranes ? Well this ... the solution used as the membrane that worked had been trimmed ...
    harriusherbartio harriusherbartio August 2017 Hardware
  • Issue with TV signal + Inductor Coil (16K Issue 2 Speccy)Hello guys, I just got a 16K Issue 2 Speccy from eBay. It was sold as not working so I knew there would be some work needed before it's working ag…

    ... 5 layers of tape, keyboard membrane is also isolated with a ... to be safe) - not helping. Membrane is brand new, by Sintech ... keyboard just 1cm above the PCB I can press any key ...
    Vaylo Vaylo August 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 …

    ... think about why this old membrane does not work . I have ... a spare membrane "ready to go" but it ... the short on the other PCB but this does not appear ...
    harriusherbartio harriusherbartio September 2017 Hardware
  • How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…

    ... is a fault with the membrane. The Spectrum+ has the quote ... reset switch (button), the Spectrum+ PCB is no different from the ...
    1024MAK 1024MAK September 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... keyboard connectors do however "hollow out" the metal on the PCB sockets ... the other side of the PCB to preserve the "virginity" of ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • ZX Spectrum keyboards : all and everything about them and how can the Speccy keyboard be improved? This discussion can include of all the main types of Spectrum keyboard from the past (inc addon / aftermarket) , their strengths and weaknesses , …

    ... could soon be available with PCB) . But any new ... hamstrung by the Speccy membrane concept as I have ... away from the ongoing membrane replacement cost one has ... to a new style PCB (without doing any damage ... easily plugged into a Spectrum PCB

    So ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • ZX Spectrum keyboards : all and everything about them and how can the Speccy keyboard be improved? This discussion can include of all the main types of Spectrum keyboard from the past (inc addon / aftermarket) , their strengths and weaknesses , …

    ... />
    1) Areas where the membrane is bent

    2 ... and other areas on the PCB

    3) The ... "theory" or idea of Spectrum membrane breakown works like this . Under ... the crease and stops the membrane from functioning properly.
    < ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... not to disturb the original PCB in any way But one ... with extracted gold plated edge connectors pins (thinned down to reduce ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... means taking apart a membrane based rubber key Speccy ... have decided exactly what PCB type to use it ... sticky plastic from the membrane itself was used :- ... plastic ,from the old keyboard membrane itself , is a tougher ... the test on a PCB but the concept has ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • ZX Spectrum keyboards : all and everything about them and how can the Speccy keyboard be improved? This discussion can include of all the main types of Spectrum keyboard from the past (inc addon / aftermarket) , their strengths and weaknesses , …

    ... />
    1) Original membrane

    2) "Super" membrane eg LMT
    PCB plug in plug Eg Dktronics ...
    harriusherbartio harriusherbartio October 2017 Hardware
  • ZX Spectrum keyboards : all and everything about them and how can the Speccy keyboard be improved? This discussion can include of all the main types of Spectrum keyboard from the past (inc addon / aftermarket) , their strengths and weaknesses , …

    ...
    48k and PLUS:- Membrane types and other ways of ... ) with a plug in small PCB connector
    -----------------------------------------------------------------------------------------------------------------------------------------------
    < ...
    harriusherbartio harriusherbartio October 2017 Hardware
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