-
Broken ZX 48kHey all. I have acquired a broken ZX 48k. It looks in good condition - tried the membrane and it is working with my other 48k very well. When you tu…
... have acquired a broken ZX 48k. It looks in good condition ... is working with my other 48k very well.
When you ... is just after the +5V regulator), but nothing else was tempered ... -
Voltage regulator replacement?I have an 48K issue 3B that has (for unknown reasons) had one of the legs on the voltage regulator broken off. It looks like a simple replacement job…
I have an 48K issue 3B that has (for ... the legs on the voltage regulator broken off. It looks like ... could do.
The regulator is marked:-
[code]T ... -
Missing Voltage RegulatorHello all and a very merry 2-days-after-the-speccys-25th-birthday to you all! Okay, I've just received my brand spanking new 48K keyboard membranes …
... received my brand spanking new 48K keyboard membranes from RWAP software ... reason ripped off the Voltage Regulator and heatsink. Is there anything ... -
Spectrum 48K colour problemI obtained Spectrum 48K issue 2 in verry good condition. Machine work very good, but picture on my Samsung TV (72cm diagonal flat 100 Hz) is little s…
I obtained Spectrum 48K issue 2 in verry good ... cant remember if there some regulator on it, who can bring ... detailed description of all Spectrum 48K motherboard revisions (with real photos ... -
R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…
Recently one of my 48k rubber key (issue 4) machine ... very hot.
This 48k was completely overhauled a few ... check of voltages, new voltage regulator, new membrane... Also added a ... /website on a better voltage regulator that can be used instead ... -
Repair options for my own dear old Spectrum 48k?Hello all, This is my first post to this wonderful forum, which is part of a truly great website! My name is Arnold, and I live in Utrecht, The Nethe…
... .
My ZX Spectrum 48K doesn?t function anymore. It ... : I have measured the 7805 regulator, its upper pin is 4 ... -
7805 Regulator HelpI am hoping to replace the 7805 regulator in my issue 3 48K Spectrum soon. Unfortunately I don't know exactly what to buy to replace it with (my fat…
ZX Spectrum 48K, issue - works fine till it gets hot (?)ZX Spectrum 48K, issue 2, works just fine, tested with Winston's diag board. At a certain moment in time however, it seems to run hot and stalls. Whe…
ZX Spectrum 48K, issue 2, works just fine, ... same problem.
Voltage regulator and ULA both get very ...Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... of non-working issue 2 48K Spectrums that
have been ... />
I found its voltage regulator not to be working so ... .
With a new regulator I can now measure +5V ...ZX 48k - Composite ModdedHi, [quote]Sinclair ZX Spectrum 48 K (issue 2 - upgraded from 16 K) This is a full working computer, the keyboard membrane and ribbons has had some …
... has had some TLC, the regulator has been changed to a ... is included:
ZX Spectrum 48k,
original TV aerial,
48k PSU UpgradeCan anyone give the definitive word on a PSU upgrade (rather than just a replacement) for 48k machines? I'm thinking of adding at least an IDE inter…
... than just a replacement) for 48k machines?
I'm ... of options for providing my 48k machine with more juice, including ... or bypassing the Speccy's regulator and using the 5v line ...ZX Spectrum Pre-regulator DesignCarrying on from the "[URL="http://www.worldofspectrum.org/forums/showthread.php?t=44486"]Issue 2 crashes after about 30 mins[/URL]" thread... [QUOT…
... one design for a pre-regulator circuit. This is some extra ... by the 7805 internal voltage regulator and heat sink.
Instead, the pre-regulator circuit helps out with the ... and tested it with three 48k ZX Spectrum+ machines that I ...7805 RegulatorGonna order some spares off CPC and I need a regulator for a 48k 3b. Any quick advice on which one of these is best ? [URL="http://cpc.farnell.com/…
... and I need a regulator for a 48k 3b.
Any ... ;Ntk=gensearch&Ntt=7805+regulator&Ntx=mode+matchallpartial& ... ;Ntk=gensearch&Ntt=7805+regulator&Ntx=mode+matchallpartial& ...48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…
... for good measure was a 48k 1984 Issue 6a circuit board ... some voltages around the 7805 regulator and the positive end of ... which now works as a 48k instead of 16k :D
48K No Sound?Repaired a 48K spectrum the other day that had the wrong PSU Plugged into it. Replaced 5v regulator, TR4, TR5 and all Electrolytic Caps. Spectrum th…
Repaired a 48K spectrum the other day that ... into it.
Replaced 5v regulator, TR4, TR5 and all Electrolytic ...I broke my 48k Speccy!!!!Hey guys, I am looking for some advice, I hope you can point me in the right direction. So, I went about replacing all the capacitors on my issue 4…
... without any issue on other 48k's.
This particular ... />
I checked the voltage regulator, TR4 and TR5 and as ... hand leg on the voltage regulator using the 200k meter setting ... />
Why does the 4b 48k schematic only show micro farad ...Issues with Spectrum 48K on SCART input of LCD displaysHi *! I'm new to the forums, but not new to ZX Spectrum. I have bought a ZX Spectrum 48K in 1983 and own it since. It was stored some 20+ years on…
... have bought a ZX Spectrum 48K in 1983 and own it ... than replacing capacitors or voltage regulator, I will try. But first ...48k Issue 6a Very sick indeed.Hi Guys. I have a 48k Issue 6a board that shows a white screen with grey border. The white screen has three black squares spaced equally on the le…
... .
I have a 48k Issue 6a board that shows ... have fitted a new 7805 regulator, socketed lower and upper RAM ... way off. If the voltage regulator, capacitors, and TR4 and TR5 ...Keys in 48k mode for SpecEmu 1.2?Hello all, Does anyone know how to get the " symbol to appear when in 48k mode on Spec Emu 1.2? As you can imagine, it's pretty essential to be able…
... " symbol to appear when in 48k mode on Spec Emu 1 ...48K protectionWhich games were 'protected' by loading a full 48K block of code so that no copy program could fit in to memory? I know of 2 by heard. Pole Positio…
... 'protected' by loading a full 48K block of code so that ...Original rubber key 48k'sThis question is to some point academic; But i seem to remeber the original 48k Rubber Keys Speccy came in versions 1,2 & 3! (way back when, occasi…
... seem to remeber the original 48k Rubber Keys Speccy came in ...48k / 48k+ Keyboard MembranesCan anyone out there help me to locate a set of new keyboard membranes for my Speccy 48k (rubber keys) and 48k+ . I've just dusted them off after ye…
Can anyone out there help me to locate a set of new keyboard membranes for my Speccy 48k (rubber keys) and 48k+ .
I've just dusted them off after years in storage and the membranes on both machines have had it !
Many thanks in advance .48k with keyboard of 128k+2 and tapes..ahoi!i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! fo…
i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! for info contact 0347 8783346 or 3478783346.ZX Spectrum 48k + GAMES FOR SALEI have a 48k ZX Spectrum + PSU and leads and about 15 - 20 tapes including JetPac, Manic Miner etc. Offers?
I have a 48k ZX Spectrum + PSU and leads and about 15 - 20 tapes including JetPac, Manic Miner etc.
Offers?48K Spectrum for sale For sale: Spectrum 48K, bought c.1983 or 4, mint condition, still in original box with manuals, leads, some sort of 'introduction to BASIC' cassett…
For sale:
Spectrum 48K, bought c.1983 or 4, ...Plotting - 128k only or was it a 48k game aswellI installed a Speccy emulator on my Psion Series 3c palmtop computer, mainly so I could play games on the move. Rather slow and only emulates a 48k…
... and only emulates a 48k machine, but it works ... on the PC was in 48k + mode) and it worked ... on an emulator in 48k mode AND an emulator ... which ONLY emulates a 48k machine?
... was Plotting always compatiable with 48k machines - please explain, ...Solution for overwritten stack in 48k SNA filesIt has been known for quite some time now that the 48k SNA file format has one serious fault, which is described in the file formats section on the W…
... some time now that the 48k SNA file format has one ... screen. In the time of 48k Spectrums the programmers were using ... /> (author of the ZX Spectrum 48k emulator)48k Z80 roms needed.Hi, I dont know if you all here ban people talking about Roms, I wouldnt of thought it.. but you never know? anyway, Im looking for as many classic …
... they all have to be 48k Z80 roms.
its ... need Roms.. Foon only takes 48k Z80 roms. WOS has many ... site that just deals in 48k Z80's or even one ...Spectrum 48k (Box&Poly Only)Hi, I have a spare box(and poly) for a Spectrum 48k for free for anyone who wants it. The Box is a little scruffy and the bottom poly has a small pie…
... (and poly) for a Spectrum 48k for free for anyone who ...Spectrum 48k wanted with Dizzy games...If anyone is interested in selling a Spectrum 48k with Dizzy for a reasonable price in the Essex/London area can you please email me at [email="Mr_Ve…
... interested in selling a Spectrum 48k with Dizzy for a reasonable ...
