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Upper memory not available in issue 2A friend send me his issue 2 Spectrum for diagnosis. It boots okay but for some reason won't load games over 16kB. He sent also a Smart Card with int…
... the chip from my other Spectrum in the socket and the ... different revision, though. Issue 2 on the malfunctioning and Issue 3B on the ... -
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 …
... upgrade kit is for issue 2 machines, as this issue board only allowed ... was not needed on later issue boards, as Sinclair included selection ... before plugging it into a Spectrum. If the voltage is less ... -
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 …
... market upgrade for a 16K Spectrum . So there are lots ... for the Issue 2 PCB are:-
1) 16k Spectrum sold by ... now have)
2) 16K Spectrum upgraded in factory by addition ... possible )
3) 16K Spectrum and bought by a DIY ... -
Harlequin 128K minor problems.....Hi All, I've just assembled my Harlequin 128K kit, I had initial problems with it that I traced to not having soldered all of the pins on a couple…
... /TV screen caused by the switching regulator. Therefore I added an inductor ... the reason of you colour issue it would be good first ... -
Free giveaway and great little spectrum blog and FB page.Found this great little facebook page with their own blog, its pretty good too. Edit - Apologies, that site is banned on WoS, as is anything to do…
... member has a very nice Issue 2 48K Spectrum winging its way to ... -
SD Card Interfaces for the ZX Spectrum : the complete list OK I admit it : this thread will start life as the incomplete list of SD card interfaces but the aim is to list the lot
... .co.uk/2017/01/zx-spectrum-issue-2-testing-with-divmmc.html"]blog ... .co.uk/2017/01/zx-spectrum-issue-2-testing-with-divmmc.html[/url ... SD Card device for Sinclair Spectrum
[url="https://www.youtube ... -
Send in the ClonesPlease name all the Spectrum clones out there ( I would say I need it back on my desk in 5 minutes , but I will be a bit more generous in this case!…
... it, the former USSR Spectrum like computers are further branches ... therefore developments of the Sinclair Spectrum 48K...
... for Sinclair Spectrum 16k/48k issue 1 and issue 2 boards would ... not work in issue 3 ... -
Send in the ClonesPlease name all the Spectrum clones out there ( I would say I need it back on my desk in 5 minutes , but I will be a bit more generous in this case!…
... therefore developments of the Sinclair Spectrum 48K...
... for Sinclair Spectrum 16k/48k issue 1 and issue 2 boards would ... not work in issue 3 ... designed for "compatibility with Spectrum" means "designed to be ... -
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 …
... it of course!) . So a Spectrum repair project fits in well ... tried to get a suitable Spectrum project and I put in ... slightly broken . It was an Issue 2 and it went to £22 ... -
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 …
... than capacitors available when the Spectrum was built.
If in ... /> Changing the 7805 voltage regulator for a modern switching type (like a ... the holes. Fit the new switching regulator.
If you are ... -
Another 48k Speccy acting as a 16K model.Hi all, I originally was going to post asking for help to fix the new addition to my family a very nice condition Issue 2 sold on ebay as a 16K model…
... is not supported by the Issue 2 PCB without mods, which is ... chip will work in an Issue 2 without mods, but if your ... is working as a 48k spectrum but Memtest returned faults which ... returned answers for a 16k spectrum not a faulty 48k one ... -
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 …
... link to a cheap Chinese switching regulator on a bit of metal ... whole unit probably only cost £2 to 4 all the way ... ]
That's not a regulator, that's a power transistor ... of epoxy glue (like a 2-component glue or similar) to ... -
Replace Issue 2 speakerI was wondering as the speaker in an issue 2 speaker is 200 ohms, would swapping a 40 ohm later spectrum speaker in help with tape loading, less load…
Thanks again Mark, cant believe theres errors in a spectrum schematic .... haha
I did notice on the issue 2 schematic RAS and CAS on the upper ram chips is reversed, well compared to my board. -
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 …
... have learned that the ZX Spectrum does present a novice tinkerer ... I will eventually make this Spectrum into a TEST BOARD . but ... will involve buying it a switching regulator and all of these at ... -
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 …
Issue 3 Recapped OK
... ( as a lot on this Issue 3 one were not visible ... ,it has a new Traco switching regulator and a Gold plated edge ... -
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 …
Issue 4A done (A success): now ... recapped and with new Traco switching regulator .
I tested twice ... -
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 …
... Capacitor at top right of Spectrum Issue 2 PCB.
This has ... 27uk one before on a Spectrum .Is this correct? Does anyone ... -
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 …
Nearly half way through the Issue 2 Recap.
... this .
2)My "best friend" today has ... the build quality of the Issue 2 board
... one of the newer Spectrum products into the LMT ... try this Issue 2 in it as Issue 2s could ... -
Spectrum 128k 2a or not 2b....Just picked up a +2 black case version and I'm in as little bit of a quagmire, The case is definitely black, has '+2A' stamped on the bottom, but in…
... stereo jack to my 'super spectrum amplified loader module', the jack ... than it does with my issue 2 48k which I'm presuming ... -
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 remaking of an Issue 2 needs to be transferred to ... .org/forums/discussion/54464/zx-spectrum-test-pcb#latest"]https://worldofspectrum ... .org/forums/discussion/54464/zx-spectrum-test-pcb#latest[/url] -
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 …
... " has pics of the 2 candidate PCBs (dated Dec ... (discussed above)
2) The source of the parts ... how to strip a Spectrum back to a bare ... The question of which Issue of Spectrum board to use has ... case I already have 2 boards which will be ... -
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 …
Weak spots.on the Spectrum PCBs
What do ... reset connections
2) On the Issue 2 there is a lot ... -
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 …
5C102E: ZX Spectrum Issue 1 boards
5C112E: ZX Spectrum Issue 2 boards
... series ULA, probably for ZX Spectrum Issue 3 boards
[ ... b]6C001E-6: ZX Spectrum Issue 3 boards[/b]
... 6C001E-7: ZX Spectrum Issue 4A boards (and higher ... -
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 …
... resist it . A faulty 48k Spectrum for £22.00 including postage ... keyboard , However it is an Issue 2 PCB.It has a piece ... -
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 …
... broken Spectrum and it turned out to be a largely socketed Issue 2 ... -
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 to the Z80 in issue 2 boards is TR6. It's ... correct a design issue with the ULA. On issue 3 and later ... posted a picture of an issue 2 board where this has been ... to link back to the Spectrum board. Only use enough cable ... -
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 …
... .co.uk/computers/zx-spectrum/hardware/"]breakintoprogram.co.uk/ ... computers/zx-spectrum/hardware/[/url] :
spectrum-issue-2-testing-with-divmmc.html"] ... .uk/2017/01/zx-spectrum-issue-2-testing-with-divmmc.html[/ ... -
SD Card Interfaces for the ZX Spectrum : the complete list OK I admit it : this thread will start life as the incomplete list of SD card interfaces but the aim is to list the lot
This is an intere[url="http://blog.tynemouthsoftware.co.uk/2017/01/zx-spectrum-issue-2-testing-with-divmmc.html"]blog.tynemouthsoftware.co.uk/2017/01/zx-spectrum-issue-2-testing-with-divmmc.html[/url]sting one:- -
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…
... end?! Is this how an Issue 2 Speccy with 16KB RAM normally ... now I've only had Spectrum+ and I'm not sure ... -
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 …
...
I bought a Spectrum Plus on Ebay . It arrived ... "about right" for a working Spectrum PCB
... than say an earlier Issue 2 PCB which I have ... additional width of a Spectrum Plus is unwelcome as ... ever do a "Recreated Spectrum Plus" I think it ...
