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+3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…
Dead 48K Speccy.Blow this up as a child... thought I'd get it down from the loft and see if I can repair it. Upon power up, it displays this: [IMG]http://i266.photo…
... checking voltages? I have a multimeter which should work I think ...Any help appreciatedHello, I notice that people have posted their PC related hardware and software woes on this forum before and the more technically minded among you h…
... test? if you have a multimeter you could see if one ...Where: ZX Printer ULA's and ZX interface I ULA'sIs there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX S…
... I can test with the multimeter? (or even a scope when ...48k+ keyboard membrane:smile:[SIZE="3"][/SIZE]Hi everyone. this is my first post:smile:. I have 1 key on my spectrum 48k+ that doesn't work:cry:. unfortunately, it is the …
... machine, and get yourself a multimeter and switch it to continuity ... membrane for shorts. If the multimeter doesn't beep, then alas ...Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
... you have a needle type multimeter (i.e. with a big ... /> If you have a digital multimeter, make sure it *can* read ...Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
... you have a needle type multimeter (i.e. with a big ... /> If you have a digital multimeter, make sure it *can* read ... ]
I have a digital multimeter, and it can read negative ...Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
... . The internal resistance of the multimeter is very low (around 1 ... the internal resistance if the multimeter is very high, millions of ... the added resistance of the multimeter (1 Ohm) will make no ...Trying to repair a 128K (heatsink)I've bought another ZX Spectrum 128K (heatsink model), but unfortunately the last owner did not tell me it did not work.... Because this Speccy also…
... /> Measuring 17 MHz with a multimeter, did I miss something in ...RAM PagingCan anyone shed some light as to how RAM paging actually works, at a hardware level (so not POKE xxxxx stuff). I know about CE and OE lines on DRAMs …
... , am playing with my new fluke 9010 and some arcade boards ...Power supply questionHi all, my 48k power supply has suddenly started getting very noisy, and I'm getting worried in case it blows up my favourite Speccy. I'm on the look…
... you can also use a multimeter to determine polarity.Power supply questionHi all, my 48k power supply has suddenly started getting very noisy, and I'm getting worried in case it blows up my favourite Speccy. I'm on the look…
... and just check with a multimeter every time I use it ...EAR connector on ZX Spectrum +2 possible?Is it possible to put an EAR connector to the ZX Spectrum +2? I need this because I wish to play the software from the pc as wave file to the spectru…
... the track (check with a multimeter that there is no continuity ...48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …
assuming it's a digital multimeter, rather than an old moving ...48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …
... really understand where the -ve multimeter lead should go when looking ...So what Speccy games are you actually playing at the min?I know this isn't the first ever thread like this but I figured I'd start it for a laugh. Since I'm not really working on anything at the mo' for th…
Had a quick blast on PEKING from a Your Sinclair cover tape, not quite sure how I set a record of 4'.20" all those years ago, can't get near it now, must have been a real easy set of tiles. A fluke if you will.48K Spectrum gone deaf?Hi Someone recently gave me a rubber-keyed 48k ZX Spectrum which they'd tucked under a bed for years and said needed repairing. I tested it using m…
... the signal with a digital multimeter on various parts of the ...Crappy video in +2B/+3Maybe it's not a failure in my ZX Spectrum, but I need some advice... I've got some spectrums (a ZX Spectrum +, two spanish ZX Spectrum +2B and a mo…
After testing with a multimeter, it showed that video output was at about +3.1v... very high.
I don't know if it have too much DC or if it have too much amplitude (I've got no oscilloscope), so I'll try Gods suggestion.Determining +3 revisionI have two +3's and have only just got around to inspecting the insides to look for the known +3 sound "bug". The problem is that one machine appear…
... need to invest in a multimeter and soldering iron :)Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
... I check it with my multimeter (it has a scale for ...Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
Your multimeter probably measures the 'resistance' of ...CPU speed measure possible?Is it possible to measure the CPU speed and shows the result on a LED display? Micky
... with a reasonably high end multimeter (one with a frequency counter ...Interface 2 helpI've asked this before but didn't really get any help. My interface 2 has issues with on of the directions (DOWN) in both ports the joystick (joyst…
... connected to IC1 (with one multimeter probe on the "shoulder" of ...games you wish were a bit easier (or harder?)easier: Rockstar Ate My Hamster -- it just seems impossible to light up all 4 discs in the space of a year. 2 years would seem like more of a challen…
... matter of skill rather than fluke, but proving that it may ... actually been more of a fluke, unfortunately.games you wish were a bit easier (or harder?)easier: Rockstar Ate My Hamster -- it just seems impossible to light up all 4 discs in the space of a year. 2 years would seem like more of a challen…
... matter of skill rather than fluke, but proving that it may ... actually been more of a fluke, unfortunately.[/QUOTE]
ah well ...The Spec-chum 100 Push Ups challengeHi Spec Chums! I found this website last night, which says you can train to do 100 push ups in 6 weeks: [url]http://hundredpushups.com/[/url] It h…
... 70 last week was a fluke, as the next day I ...testing if speccy is fully functionalHi, There is so much mention of T states but still confused. Does this mean if an instructin is out by a T-state or more then the speccy is faulty?…
... know which end of a multimeter to hold to check the ...World Cup Online?I really want to watch the world cup live. Being in the US the proper way to do that would be to get cable TV and a sports channel. I would do that…
... silly and overreact ! Was a fluke goal by the US, schoolboy ...World Cup Online?I really want to watch the world cup live. Being in the US the proper way to do that would be to get cable TV and a sports channel. I would do that…
... silly and overreact ! Was a fluke goal by the US, schoolboy ...World Cup Online?I really want to watch the world cup live. Being in the US the proper way to do that would be to get cable TV and a sports channel. I would do that…
... silly and overreact ! Was a fluke goal by the US, schoolboy ...
