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Power issues on a 6A 48 K SpectrumHello all! I decided to take another look at my 6A Spectrum that I broke via a bad joystick adapter, I’ve removed the bottom 16K ram and replaced…
... small value capacitors, every decent multimeter should give the same results ... -
Spectrum +2 (Grey) troubleshooting helpHi guys, first time poster here, tell me if I'm doing something wrong. I bought a ZX Spectrum 128k +2 a week ago, it was sold in working condition a…
Nothing at all is picked up by my TV, is it possible that the tape deck is getting power but the computer itself isn't? Is it possible to test the TR8/9 with a multimeter? Sorry if I'm asking stupid questions, only got into speccys a few weeks ago! -
Spectrum +2 (Grey) troubleshooting helpHi guys, first time poster here, tell me if I'm doing something wrong. I bought a ZX Spectrum 128k +2 a week ago, it was sold in working condition a…
... the TR8/9 with a multimeter? Sorry if I'm asking ... -
Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…
... have a relatively good quality multimeter so I can test voltages ... -
Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…
... I can perform with my multimeter? Like I wrote before, I ... -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
48k - maybe. Most likely to be damage to the PCB track.
Which +2, grey (9V PSU) or black (PSU with DIN plug)?
Do you have a multimeter?
[b][i]Mark[/i][/b] -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
... ahead, do you have a multimeter? And it would help if ... of things. Again, need a multimeter to help diagnose the problem ... -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
I have been meaning to buy a multimeter. How do they work? I cannot send a photo atm. They are at my parents place. -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
A multimeter measures electrical properties. Just like ... are Ohms.
A multimeter is a very sophisticated item ... type.
A good multimeter when used correctly has very ... -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
[quote="1024MAK;845600"]48k - maybe. Most likely to be damage to the PCB track.
Which +2, grey (9V PSU) or black (PSU with DIN plug)?
Do you have a multimeter?
[b][i]Mark[/i][/b][/quote] -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
... ahead, do you have a multimeter? And it would help if ... of things. Again, need a multimeter to help diagnose the problem ... -
Testing 4116 type DRAMsHappy New year All! I'm managed to find some time to repair some more Spectrums :) woo hoo. I have a couple with busted lower RAM, Sooo, I appr…
... why you would have a multimeter connected up before power on ... -
Dead 48k and +2I have a couple of questions. My old 48k had a very wobbly power socket so bought a new one and soldered it on. It will not work at all now? Is ther…
Lol
I will post some pictures soon. I am hoping the power socket on the 48k is an easy fix. I have all the tools, soldering kit and now a multimeter! -
Problem with 128k +3Got this a while ago on Ebay, just got around to trying it out and face the following problem. Displays garble block on the screen and keyboard does…
... /> Also do you have a multimeter?
[b][i]Mark ... -
A tally on the number of successful builds of the Harlequin[SIZE=4][COLOR=Green][U][B]A tally on the number of successful builds of the Harlequin.[/B][/U][/COLOR][/SIZE] Please post your successes below :-) …
... inputs and outputs with a multimeter. Will continue tomorrow with a ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... to get acquainted with your multimeter. That will tell you if ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... wired, is to use a multimeter on the DC Voltage range ... -
Fuller FDS keyboardHi folks, Bit of a head scratcher for me since I found one of these whilst looking for dead Speccy boards and there doesn't appear to be a whole l…
... the continuity range on your multimeter to test the keyboard. Have ... -
128k toastrack helpHello everyone So. I just bought a toastrack 128k. No show when plugging into TV. The PSU is fine and tested with a multimeter. Chips are not gett…
... too, also read that on multimeter and is running how it ... -
The Spectrum game you always come back toIs there a Spectrum game that you still come back to playing after all these years? For me, after all this time there still isn't a game to match Ba…
I've done Bugaboo a few times, first time I think I was about 9 years old, and I think it was a bit of a fluke to be honest :))
Isn't the record for finishing it something insane like 5 seconds? -
Issue 3B turning offI'm trying to save a Spectrum Issue 3B. I restored the power supply section, changing the 7805, TR4, and TR5, besides all electrolytic capacitors. No…
... ?
Do you have a multimeter? During the fault condition, what ... -
Issue 3b boarddiode ID5 and cap C47 are missing from my board will these have any effect on system powering up. I have checked the voltages on the 7508 and its …
I will take one today at some point, I desoldered one leg and measured it and yes the multimeter is a crap one but definitely a 330 on the meter -
Harlequin Rev GI have just got all the bits to build an Harlequin Rev G system and I went for a red solder mask board. I have fitted the 3 surface mount components…
... [/quote]If you have a multimeter, testing on the resistance range ... -
Harlequin Rev GI have just got all the bits to build an Harlequin Rev G system and I went for a red solder mask board. I have fitted the 3 surface mount components…
... />
that's what the multimeter shows for each in on ... -
12V ripple with lower ram installedI repaired a speccy this week. Before doing anything I replaced all caps and measured the transistors in the power section. When doing this I found t…
C50 should never get warm. How good is the external power supply? Test using either an ossillscope or a multimeter (test both DC voltage AND AC voltage) while connected to the Spectrum.
[b][i]Mark[/i][/b] -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... ' edgeconnector. By means of a multimeter. Measure 'in both directions' by ... -
Recommend Cassette PlayerI've not needed to buy one for about 30 years so can anyone recommend a new cassette recorder and source please? Do they even make them anymore?
... open circuit fault with a multimeter on the resistance range. You ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... wire being the same . A multimeter continuity test appears to show ... -
Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
... scope but do have a multimeter.
Thanks in advance ... -
What's the best solution for audio loading on a 48k?I have three 48k Speccies. All have been recapped and AV modded, but only one (an issue 4A) is currently loading via Teezix. (the other two (issue 3…
The[url="http://www.maplin.co.uk/p/35mm-mono-plug-to-35mm-stereo-socket-adapter-fk14q"] Mono adaptor I mentioned[/url] seems to short left and right together, according to my multimeter.
