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+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
... the BREAK key down, and probe the base of TR5. If ... -
+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
... the BREAK key down, and probe the base of TR5. If ... -
+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
... OK message.
Now, probe each of the stubs of ... -
+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
... to be moving the ground probe so it’s as close ... -
Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…
... mains and putting the BLACK probe of my Multimeter (set to ... -
Finding a good (UK) external switch mode power supply for the basic 48k and 128k ZX SpectrumsThis idea has probably "done the rounds" by now . I think I have heard about it a bit late . This thread with look at replacing the original "heavy l…
... mains and putting the BLACK probe of my Multimeter (set to ... is positive, the black test probe and lead is negative. Hence ... -
ZX Interface 1Hi, I have a ZX Interface 1 which I have bought online. It does not seem to work. When using CAT1 or any other specific commands, the compute…
... you will need a logic probe, logic analyser or an oscilloscope ... -
The Complete List Of The Causes Of Lower Ram Failure?Well the aim is to get a comprehensive list.I ask this because I know very little about it . I know that failure of "power supply" related capacitors…
... someone prodding around with a probe, test clip, screwdriver etc when ... -
Classic and other Cultral Hero Games There are many different types of HERO . This thread can cover then all . How many types are there out there? 1) British ones including the "Cla…
... /> There's the obvious Quest Probe Marvel text games Hulk, Spiderman ... -
ZX Spectrum 48K Issue 4B No soundHi, I have a ZX Spectrum 48K Issue 4B without sound. I tested the ULA on another Spectrum and works fine, tested the speaker and it has the correct …
... a multimeter and a logic probe.
I'm not a ... -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
... AC
2. Put one probe (doesn’t matter which) on ... )
4. Now put one probe on Pin 29 of the ... -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
... , do you have a logic probe?
If not, I can ... -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
... /> I do have a logic probe, I have a 15Mhz single ... directions I prefer the logic probe.
Also voltage to ... -
Spectrum 128k advice neededHi, I'm new to this forum and the spectrum world. I have this spectrum "toastrack" that was working fine until today. It doesn't boot anymore, it s…
... ).
With the logic probe, you can test for activity ... -
zx spectrum +2 no clock signal ??help me ...... looking at a specie +2 (original +2) it is the Z70700 issue 1 (uk one) i seem to have no clock,no display,no sound at all. it is sho…
... have a very basic logic probe and it shows pin 6 ... -
zx spectrum +2 cpu questionanother +2 mystery ... so just testing a +2 Z70700 issue 1.. although my power set up was a bit delboy .. PS2 power brick with modified end for the …
... /> If you have a logic probe, load the /M1 output pin ... resistor, then use a logic probe to see if the Z80 ... -
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…
I tried with my logic probe while running the memory test ... -
Microdrive logic flow.Hi all, I've finally gotten my hands on an Interface 1 and Microdrive to continue my project, and have been analyzing the Microdrive with a logic …
... connect a 7 bit logic probe to the control signals and ... -
Mars Mission - Perseverance Roverhttps://www.bbc.co.uk/news/science-environment-56133281 I wonder if they will find anything interesting ? Crystaline sculptures, pyramids, the re…
... have explored Jupiter, but the probe that was sent into it ... ://solarsystem.nasa.gov/missions/galileo-probe/in-depth/"]here[/url]).
Mars Mission - Perseverance Roverhttps://www.bbc.co.uk/news/science-environment-56133281 I wonder if they will find anything interesting ? Crystaline sculptures, pyramids, the re…
... are gas giants so a probe won't be able to ...Mars Mission - Perseverance Roverhttps://www.bbc.co.uk/news/science-environment-56133281 I wonder if they will find anything interesting ? Crystaline sculptures, pyramids, the re…
... are gas giants so a probe won't be able to ...Mars Mission - Perseverance Roverhttps://www.bbc.co.uk/news/science-environment-56133281 I wonder if they will find anything interesting ? Crystaline sculptures, pyramids, the re…
... are gas giants so a probe won't be able to ...48k ULA heat sink required ?ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ? i wonder if anybody has done any …
... nothing!
Maybe stick the probe on the bottom of the ...48k ULA heat sink required ?ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ? i wonder if anybody has done any …
... nothing!
Maybe stick the probe on the bottom of the ... , who did the heat sink probe under the chip thing albeit ... using an ordinary multi meter probe pushed under and not bonded ...Been to the Cinema recently?Honestly the last thing I think I seen was True Lies, unless Lord of the Rings Part One came out later? Yeah, it was LOTR I think. Anyway decades ag…
... . Every time they fire a probe up now or crashed a ...Been to the Cinema recently?Honestly the last thing I think I seen was True Lies, unless Lord of the Rings Part One came out later? Yeah, it was LOTR I think. Anyway decades ag…
... . Every time they fire a probe up now or crashed a ...The Rant Thread.A thread to rant and ramble about stuff that makes you mad: 1) Why can't women say things in only a few words.Instead of a simple yes, no, we…
NASA the bunch of feckers, wasting a perfectly good probe by crashing it into Dimorphos. The bstards. ;)The Rant Thread.A thread to rant and ramble about stuff that makes you mad: 1) Why can't women say things in only a few words.Instead of a simple yes, no, we…
... feckers, wasting a perfectly good probe by crashing it into Dimorphos ...
