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I want to upgrade 16k to 48k - need help.I recently purchased a lovely little 16k machine (Issue 2) but I'd like to upgrade it to 48k. I'd rather not use a Ram pack as I think they are ugly…
... like to upgrade it to 48k.
I'd rather ... the RAM is upgraded to 48k?
Where can I ... then turning the power on, no soldering? -
Multiface One MF I and Plus D +D and Spectrum 48kHi, I have an 48k Speccy. And a Plus D Interface. Now I want to use it together with a Multiface One, but it seems I can only have the MF1 oder th…
... ,
I have an 48k Speccy. And a Plus D ... me,
that I have no chance to get the MF1 ... -
48k no key sound with tape jack inOne of my 48k's does not produce a sound when keys are pressed, this is only when the ear jack is fully in, it also makes the beeper really quiet, ta…
One of my 48k's does not produce a sound when keys are pressed, this is only when the ear jack is fully in, it also makes the beeper really quiet, take it out and alls fine,, ive retensioned the socket but its still the same, any ideas? -
16k --> 48kI bought a zx and found out it was a 16k since when I execute PRINT PEEK 23733 I get 127 Does it mean I get a lesser model? What limitations do I h…
... have, if it was a 48k like I thought it was ... there is between 128k and 48k models?
Thank you ... I get a M RAMTOP no good, 0:4 error message ... -
Samantha Fox Strip Poker 128k - no record on WoS?Going through some boxes of games, I came across Samantha Fox Strip Poker 128k. Looking on WoS, there is the 48k version, but no record or mention o…
... WoS, there is the 48k version, but no record or mention of ... . It says 128K instead of 48K.
2. The last 2 ... -
Announcing MetroSpec: ZX Spectrum 16/48K Emulator for Windows Phone 7 / 8Hi All, I'm the author of MetroSpec, a ZX Spectrum 16/48K emulator for Windows Phone 7 / 8. MetroSpec V1.3 was actually launched in September 2012, …
... MetroSpec, a ZX Spectrum 16/48K emulator for Windows Phone 7 ... :
ZX Spectrum 16K/48K emulation
Sound emulation
Virtual Spectrum keyboard (sorry no rubber keys)
Kempston joystick ... -
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
... playing around with this Spectrum 48k I got inside a dK ... .uk/2011/10/zx-spectrum-48k-composite-video-mod.html[/url ... reasoning behind this? It made no difference at all, from what ... -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... -purpose interface for the 16K/48K ZX Spectrum, with the primary ... standard SCART cable. There is no need for non-standard modifications ... on a modern TV that no longer provides an analogue tuner ... -
48k Issue 4A power supplyHi, I just repaired a 48k Spectrum+ with an Issue 4A board. The computer worked but the picture was mono with bad contrast and bad synchronizing. I …
... />
I just repaired a 48k Spectrum+ with an Issue 4A ... where only 1.7V and no -5V. At any time before ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... I have bought a working 48k + Spectrum (Issue 4). I wasnt ... (I did the composite mod no probs). But I am a ... -
Faulty 48K Issue 3 motherboardHi I have a faulty Issue 3 motherboard and would appreciate it if somebody can steer me in the right direction of where to begin with the fault find…
... where to begin with the fault finding. The symptom is that ... with switch-on. There are no other lines, etc, just a ... -
Spectrum 48k Rubberkeys caseAs title - I need an empty case for a Speccy 48k in good repair (no bent cover plate, minimum scratches etc) preferably with rubber keymat and keyb…
... case for a Speccy 48k in good repair (no bent cover plate ... membrane.
I have no idea what these are worth ... -
48K ZX Spectrum. Issue 4A.Exclusive to WoS, not advertised anywhere else. For sale is a 48K ZX Spectrum, containing an issue 4A mainboard (in the unusual and pleasing cream c…
... />
For sale is a 48K ZX Spectrum, containing an issue ... joystick interface and Spectranet connected; no faults were apparent. There are ... -
Issue 3 board... How to resurrect?Dear Everyone, Now I have a working 48k Issue 3, a sort of working Speccy+ (still having problems with the keyboard, more of that in another post) a…
... but was upgraded to a 48k+ in 1984, and then ... voltage tests on the lower RAM with the computer ... multimeter, having tested all the lower RAM chips, and finding ... now of replacing all the lower RAM chips, and then ... for similar threads, but no joy so far... I ... -
Spectrum 48k PSUHi, can anyone suggest an alternative off the shelf power adapter that will be compatible with the ZX Spectrum 48k? I've just picked an old machin…
Hi, can anyone suggest an alternative off the shelf power adapter that will be compatible with the ZX Spectrum 48k?
I've just picked an old machine up with no PSU.
J -
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…
... and tested it with three 48k ZX Spectrum+ machines that I ... 17.0?C/W or lower.
The result is ... -regulator[/B][/U] circuit (with no load): 8V
The ... -
Help with joystick interfaceHello to everyone! Just got me a joystick interface I have never seen before. I don't have instructions for it and I don't know if it required some…
... to work properly. I have no idea what "MRE" stands ... the left switch) but no game I have tested with ... off switch!
The lower ones are for sound input ... figured out yet how the lower ones work but they ... to wonder if this is 48k or 16k compatible only...< ... -
Spectrum 48k unstable Colours on Composite Video OutputHi, I?ve an Speccy 48k here which has an Composite Video Out Mod (The Video-Modulators power input is cut from the board). On this I get an unstabl…
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I?ve an Speccy 48k here which has an Composite ... do to find the hardware fault on this ?
Regards ... -
ZX Spectrum 48k - no CLK signalHello I'm trying to repair ZX Spectrum 48 mainboard issue 3B. When i check signal with oscilloscope on X1 or on ULA pin 39. I get stable 2V no clock…
... 39. I get stable 2V no clock pulses. Can broken ULA ... chip be the cause of no clock signal?
regards ... -
idea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …
... features to your ZX Spectrum (48k):
- USB ports with ... placed on top! In fact no ports apart from hidden micro ... -
Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…
... Issue 3 16K, upgraded to 48K. To bertter explain "nice", ... were well within limits, no blown TR4 and/or associated ... RAM tester stopped showing a fault on bit 5, so ... to have 16K upgraded t8 48K, I mean) suspecting ... 4116 back into place... no, still the same faulty ... -
Born again Speccy user with problemsHello all, Firstly I'd like to say a big hello - this is my first post! When I was 8 or 9 or so my dad bought a ZX Spectrum 48K and a whole bunch o…
... dad bought a ZX Spectrum 48K and a whole bunch of ... myself to a classic rubber 48K Spectrum off of ebay last ... buzzed through the connectors ok (no loose contacts). Tried different combinations ... result of 32768. Aha. RAM fault.
I did POKE ... -
no color zx spectrum 48k (rubber) composite modI have a problem, I just got my 48k speccy and I am waiting for my keyboard mebrane to arrive, meanwhile I did the composite mod and on startup befor…
... problem, I just got my 48k speccy and I am waiting ... -
DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…
... socket, then there's no need to drill a ... to make sure of no shorts or misplaced signals, ... indicated that the machine saw 48K of RAM, verified with ... now and that there were no issues:
[ ... girl has an intermittent colour fault, to be remedied some ... -
"DIGI POP" program: more digital music on ZX48 (no AY!)[img]http://mister_beep.republika.pl/digipop_demo.png[/img] DOWNLOAD: [url]http://mister_beep.republika.pl/Digi_pop.zip[/url] This is a 1-bit / BE…
... for
unexpanded ZX Spectrum 48K platform.
The demo contains ... (trebles have
been made lower to a degree) -
[url ... -
FS: MOSTEK 4116 DRAM for 48k SpeccysHi I have a bunch of Mostek 4116 DRAMs here for the 48k Speccy - fits in the lower 16k memory bank. They look like NOS unused, still in their origin…
... here for the 48k Speccy - fits in the lower 16k memory bank ... -
My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …
... Amstrad copyright messages. There's no Menu options and hitting the ... drive test as I have no disk to test on it ... it's flow chart of fault finding, and it pushes me ... over from my PC fault finding days). Still no +3 menu. So ... -
Calling people with Diagboards.....and who have toastracks or grey +2's with all socketed memory :) I'm finishing off modifications to the Diagboard firmware to expand its testing c…
... specific IC(s) are at fault.
Here's sample ... /> .. and when IC6 and IC8 (lower RAM) are removed:
48K machine, and it does quite ... -
Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... 254 every two lines for 48K sound (at expense of full ... graphics down to top of lower RAM block for drawing sprites ... /> call draw_char_frame_bc
;No return to BASIC
;------------------
Spectrum + 48k-Diagnosing a dead keyboard/membraneJust purchased a Spectrum Plus (48k), and the keyboard was faulty (for example, when I pressed the " key, a 'p' was displayed on screen, and lots of …
Just purchased a Spectrum Plus (48k),
and the keyboard was ... different again (the " key did no longer work).
Is ...
