-
GrrrThere's nothing more annoying than finding out that you've managed to bridge /RAS and A3 on the bank of 4116s while putting in sockets. Naturally, th…
... the sockets out of the PCB this way with my paint ... -
GrrrThere's nothing more annoying than finding out that you've managed to bridge /RAS and A3 on the bank of 4116s while putting in sockets. Naturally, th…
... -drill the holes in the PCB with a 0.8mm drill ... -
Need advice choosing one of these optionsA few spanish friends are willing to help me build and program the ethernet interface for the Speccy. Here are the possibilities. Any advice would be…
... little more space on the PCB.
But doing it ... -
Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
... a slight tweak to the PCB layout to accomodate another jumper ... 's clock!)
The PCB layout is designed so it ... who's made their own PCB. It is double sided, but ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... time and equipment to make PCB for it.
But, if ... -
Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
... pin jumper block to the PCB layout for 'use M1 / don ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... time and equipment to make PCB for it.
But, if ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
Sounds like a good place to get my thru port PCBs made :) Thing is, no holes in a thru port PCB :( Will they accept black and white 1:1 artwork? -
A great ideaMost of us are a bit short on cash whenever we want to buy a new toy for our speccy. Sometimes can't even find what we are looking for. Now what id s…
... expensive (i.e. getting the PCB manufactured and the chips put ... -
Personal Gaming History in (very) Brief'79:PrinztronicMicro5500 --> '80:PlayedCoinOp(Space Invaders) --> '83:Spectrum(48K) --> '84:Spectrum+(kit) --> '86:Spectrum128 --> '88:AtariST --> '9…
... /> MB Vectrex
~2002: JAMMA pcb's* (World Cup 90, Aeroblasters ... -
problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... of rework on a Spectrum PCB it's also worth checking ... -
problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... have been burned and in pcb I've seen big voltages ... -
Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
Excellent work!
I was hoping to get my project out the door by today but real life happened. I should really get on with laying out the PCB soon.
--Dave -
Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
Many thanks Winston as I do not have access to a Laser Printer, I am constructing a UV Light Box to make the PCB. -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... the current taken by the PCB?
Easy to just ... -
Is Ferranti still alive ?And if not......why should there be any restrictions on manufacturing the ULA ?
... [/] should be able so make PCB's.
I'm ... -
Is Ferranti still alive ?And if not......why should there be any restrictions on manufacturing the ULA ?
... , and if you keep the PCB size down (since you've ... -
Problems with TS2068sI bought 2 TS2068s, and this is what's happening: 1st computer: -The tv output doesn't work. The composite video output does* -The '7' key is dead.…
... variable resistors on the 2068 pcb that were adjusted at the ... bottom left corner of the pcb. Now that you've mastered ... -
Problems with TS2068sI bought 2 TS2068s, and this is what's happening: 1st computer: -The tv output doesn't work. The composite video output does* -The '7' key is dead.…
... membrane. Instead they have a pcb, so you are in luck ... have access to the KB pcb. The keyboard matrix has copper ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... creating decent pictures of 128k PCB. Here is the link:
PCB) like someone has tried to ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... /> Hi Gods
Thanks for PCB image and that ULA looks ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
[QUOTE=netomc;188312]
Hi Gods
Thanks for PCB image and that ULA looks the same as one on my board ...
[/QUOTE]
It's the french version, without PAL coder/modulator and yes, it's the same ULA chip ! -
Problems with TS2068sI bought 2 TS2068s, and this is what's happening: 1st computer: -The tv output doesn't work. The composite video output does* -The '7' key is dead.…
... 't. Different revisions of the PCB might have different value coils ... -
ZXSpin 0.62 Available nowAs promised (and only a [i]little[/i] past the deadline) here is the latest version of ZXSpin. Many bugs have been fixed, and a few new features add…
... is Velesoft's DataGear - small PCB which is put inside your ... -
Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... , with expansion slot. I beleive PCB can be retraced to fit ... -
TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
I have sent you a pm, though i don't know how to build a pcb. Anyway, there's one ic that has it's reference deliberatedly erased. -
InterfaceHi I'm building a spectrum emulator. I've tried to build it as modular as possible, for example I have a zx class that have input and output devices…
... />
On the Spectrum's PCB, there is some logic that ... -
TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
... in a scan of both PCB sides, the circuit *could* be ... -
TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
... (in the Richard Stallman sense) PCB design tools that will output ... can be sent to a PCB maker like Olimex who will ... one eurocard sized piece of PCB, which would probably make them ...
