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48k issue 2I have an issue 2 spectrum 48k and wanted to know if i wanted to change the z80 is ther any fix so i dont have that 1 component hugging the z80 [img…
... /Sinclair/82/Sinclair%20ZX%20Spectrum/PCB%20Images%20(orthogonal)/ZX%20Spectrum ... -
Dirty +2 board. Should I clean it?Hi, A friend donated a Spectrum +2 to me. Naturally, after testing it (it works), I opened it up to see how hard a life it has had. The board is qu…
... whether it is damaging the PCB? Should I try to clean ... -
+3 Tape/sound socket replacementI've just taken delivery of a rough round the edges but fully functional +3 (chocolate drive belt notwithstanding). However the tape/sound socket is …
... socket is missing from the PCB.
Anyone happen to ... .maplin.co.uk/p/35mm-pcb-mounted-stereo-socket-jm23a"]this ... -
Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…
... be single chip etc. The pcb will fit the original enclosure ... -
Spectrum & ZX81 PSU Strange VoltagesHi all I've just refurbished my ZX spectrum PSU after i accidently broke one of the wires i soldered the joints to the PCB nicely and all seems to b…
... soldered the joints to the PCB nicely and all seems to ... -
What is this disk interface (and how to use it)?Anybody seen this floppy disk drive interface before? It uses an MB8877A and the rest is 74XX-logic, no GALs/PALs. And an EPROM. [IMG]http://i1373.p…
... is the input for the PCB, but it actually looks like ... the cooled 7805 on that PCB does the job, I don ... -
Is my ZX81 RAM Pack OK?Hi guys I've just taken my 16k RAM pack apart to give it a clean inside and out and i noticed these strange burn type marks!? [IMG]http://s7.postim…
... see it mainly on the PCB where the chips etc connect ... to the PCB... is this burn marks!? Is ... -
1st interface in 30 years (update)Hi all, Just a wee update to my "1st ZX interface in 30 years" project. Main IC's: 82C55 three 8-bit port I/O (configured for 12 dig in, 12 dig out…
... .com/images/stories/IanJ/ZXspectrummod/pcb.jpg[/img] -
Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…
... off the modulator, stripped the PCB from it and remounted it ... -
Betadisk 128 in production.Pcb is in factory, i expect ready device in next 2 weeks. [URL=http://www.fotosik.pl/showFullSize.php?id=7b4cc1b97c1c4703][IMG]http://images52.fotos…
Pcb is in factory, i expect ready device in next 2 weeks.
[URL=http://www.fotosik.pl/showFullSize.php?id=7b4cc1b97c1c4703][IMG]http://images52.fotosik.pl/508/7b4cc1b97c1c4703m.jpg[/IMG][/URL] -
DIVMMC my version512 ram, 8kb Flash ROM, esx dos, 2x thru, micro SD card slot,prototype board: [URL=http://www.fotosik.pl/showFullSize.php?id=18408198292851f7][IMG]h…
... ]
Mistakes on pcb fixed, new boards ordered, price ... -
Keyboard for ZX Spectrum 16k/48k or HarlequinThere is a keyboard developed originally for use with the Harlequin but maybe used as well with any 16k/48k ZX Spectrum. The keyboards offer a great …
... /> The keyboards are available as PCB only, assembly kit with all ... -
Spectrum conversions of weird arcade releasesThere's an arcade game called "Mad Gear" / "LED Storm". The Spectrum version of the game is a conversion of a very weird (and cool!) prototype(?) ver…
... 2011" version of the arcade pcb for 10+ years now with ... -
Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…
... you have to take up PCB space with a battery plus ... -
Which joystick?I have decided to build my DIY arcade controller soon (using the PCB of an ageing PS2 controller as the base for the contacts), but I cannot decide o…
... arcade controller soon (using the PCB of an ageing PS2 controller ... -
What is the Speccy? exUSSR edition.In exUSSR 8 years ago have been solved all these issues, and developed a General opinion. All who do not agree with this opinion, are incompetent peo…
... only the schematic and the PCB layout. Replica ZX Spectrum does ... -
Multi Multiface: the projectI posted some updates on Facebook yesterday about the development of the Multi Multiface, but here is the right place to share all technical findings…
... and bottom sides of the pcb on transparent paper to speed ... -
ZXadlib CPLD-freeHi folks. Repost from [URL="http://forum.tslabs.info/viewtopic.php?f=6&t=431"]here[/URL] OPL2 chipset for speccy. 6Fh index, 7Fh data. This is firs…
... is first prototype with homebrewed PCB.
[img]http://i62 ... think this is final design. PCB also homebrewed.
[IMG ... thru hole components. One side PCB, easy to make at home ... assembled units and some bare PCB's for those, who buying ... -
important Harlequin modWhile searching for a better solution for avoiding undesired spikes that corrupt the screen RAM at Harlequin I found a final solution. No additional …
... these mods at every Harlequin PCB.
Greets Ingo ... -
New MEMFACE projectMEMFACE is my old project, but never finished. Now is PCB done (at the post office) and I write firmware for CPLD. MEMFACE is interface with external…
... , but never finished. Now is PCB done (at the post office ... -
PCB Maker - Just sharing a linkNot my thing but someone shared the url a long time ago with fellow Timex TS2068 Yahoo group members. It says they make PCBs for a low price and don'…
Not my thing but someone shared the url a long time ago with fellow Timex TS2068 Yahoo group members. It says they make PCBs for a low price and don't charge for delivering them anywhere in the world. Could this be helpful to some of the hardware ... -
Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …
... ? It's an Issue 3 PCB.
[I've read ... mounted on the Issue 3 PCB. I can't see any ... tell which chip on the PCB is for which RAM page ... -
TR4/TR5 replacementHi guys, I've got another Spectrum I'm working on now - an Issue 4S this time. When I originally got it, I powered it up and did the basic tests a…
... /Sinclair/82/Sinclair%20ZX%20Spectrum/PCB%20Images%20%28orthogonal%29/ZX ... -
Toastrack - poor state/non working requiredHi all, I'm after the rattiest, tattiest, non-working toastrack that can be gotten - I'd like to obtain one I can fully socket for testing my diagn…
... only criteria is that the PCB is present and that there ... or no damage to the PCB traces. I can fix everything ... -
Just Speccy 128Wow, got home and found that I have received a parcel from Zaxon containing a Just Speccy 128 PCB :-) B-)<br>Now all I need is a parts list, th…
Wow, got home and found that I have received a parcel from Zaxon containing a Just Speccy 128 PCB :-) B-)
Now all I need is a parts list, the parts on the parts list, and some free time to build it :D
Mark -
Toastrack PCB verisonsA quick question - what are the main differences between the issue 6k and issue 6u motherboards in the toast-rack? Is one considered to be more relia…
A quick question - what are the main differences between the issue 6k and issue 6u motherboards in the toast-rack? Is one considered to be more reliable, etc than the other? -
Issue 3 /3b power rail improvements<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal">Hi F…
... to power rails around the pcb and
improve reliability of ... -
Spectrum USB KeyboardI know you can buy these but how do you make one . What I am thinking of be similar to the type described in Issue 1352 of Micro Mart at page 45 .The…
... . There is a custom USB pcb . Is this an Arduino variant ...
