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Keys don't work even with new membrane, HELP!Hi folks. I have a 1983 48k Zx Spectrum. It powers up fine, but none of the keys respond. I have tried fitting a new keyboard membrane from rwap, but…
... on the ULA with a multimeter - put the tip of the ... multimeter probe on the shoulder of ... will have to connect the multimeter probes the right way around ... . The red probe of the multimeter should go on the KB2 ... -
Keys don't work even with new membrane, HELP!Hi folks. I have a 1983 48k Zx Spectrum. It powers up fine, but none of the keys respond. I have tried fitting a new keyboard membrane from rwap, but…
... keyboard connector. With an analogue multimeter you might measure something between ... 0V and 5V, a digital multimeter might get confused although that ... -
Keys don't work even with new membrane, HELP!Hi folks. I have a 1983 48k Zx Spectrum. It powers up fine, but none of the keys respond. I have tried fitting a new keyboard membrane from rwap, but…
... keyboard connector. With an analogue multimeter you might measure something between ... 0V and 5V, a digital multimeter might get confused although that ... -
Today I am mostly reading[url]http://www.hipandkneenetwork.co.uk[/url] to educate myself so I don't sound stupid when I see the consultant.
[QUOTE=karingal;335890]The Spud source and trying to understand how it works...[/QUOTE]
complete fluke.............and some harry potter wizardry -
Today I am mostly reading[url]http://www.hipandkneenetwork.co.uk[/url] to educate myself so I don't sound stupid when I see the consultant.
[quote=mel the bell;335897]complete fluke.............and some harry potter wizardry[/quote]
Still waiting for your emulator... -
Tech question about microdriveshi ! I dont know if someone out there can help me I recently got my paws into an interface 1 and 2 microdrive units form an ebay auction they wore …
... might want to use a multimeter to check continuity of the ... -
Hidden Features In GamesI'm sure there was a thread like this somewhere - sorry, but I can't find it. Hidden stuff in games. In "Mikie" there is a hidden bonus in each of …
... I found it by complete fluke.
I was doing ... -
Hidden Features In GamesI'm sure there was a thread like this somewhere - sorry, but I can't find it. Hidden stuff in games. In "Mikie" there is a hidden bonus in each of …
... I found it by complete fluke.[/QUOTE]
I dunno ... -
issue 2 board c34 getting hotHi All, Can anyone help with c34 getting hot very quickly? I`ve got an issue 2 board, there is no `buzz` from coil. yet the spectrum initalises to co…
... tested the resistor with a multimeter and is giving me a ... -
ULA gets so hot, it is cracked open!Hi everyone. I have bought a rubber-keyed 48K and the seller said he was selling it as "for spares/repair." Sure enough, it turns out it doesn't work…
... good practice!
A simple multimeter would cost less than an ... -
issue 6a faultyHi All I got issue 6a pcb from ebay with status faulty pcb had bad voltages when I power up I changed tr4 ztx650 and all voltages got back on ic6 I h…
... slightly different in-circuit. The multimeter (which I notice you're ... -
issue 6a faultyHi All I got issue 6a pcb from ebay with status faulty pcb had bad voltages when I power up I changed tr4 ztx650 and all voltages got back on ic6 I h…
... ,
[cut]
The multimeter (which I notice you're ... get very fine 0 in multimeter for this track.
Games that you've realised you would never have the patience or skill to finishBack in the day, there where plenty of games I could never finish, now that I'm not a toddler any more, and that I've spent enough time in WOS and pl…
... by beating the instructor by fluke on the millionth attempt - only ...google image not safe??????i use google image when looking for pics of lps covers etc. ive been using avg for the past 3 or so years and its NEVER alerted me to a potential pro…
for the search term i typed "the league unlimited orchestra" it was the first result that brought up the warning...the url in avast ends in /gzip
the second result didnt bring up a warning in avast
might have been a fluke?google image not safe??????i use google image when looking for pics of lps covers etc. ive been using avg for the past 3 or so years and its NEVER alerted me to a potential pro…
[QUOTE=mel the bell;357941]
might have been a fluke?[/QUOTE]
not a fluke, a worm :smile:not much gear and absolutley no ideaIm looking for some help with two spectrums that i have just dug out of storage and are both unfortunatley faulty. I had always regreted that during …
... first if you have a multimeter.
First, locate the ... , test the voltages with a multimeter. You should find the following ... the black probe of the multimeter on pin 16.
Black screen of deathI recently aquired a zx spectrum (revision 3b) of the rubber key variety. it was all running smoothly(for about an hour after pluggin in), i left the…
... the black wire of your multimeter on the pin for 0v ...Black screen of deathI recently aquired a zx spectrum (revision 3b) of the rubber key variety. it was all running smoothly(for about an hour after pluggin in), i left the…
... to proceed to use my multimeter to check everything else i ...I am currently watching.....This stems from a rant Mel did months ago on the currently listening to thread, and he suggested starting a thread like this to somebody (sorry can't…
... first one wasn't a fluke and Steve Martin may finally ...Broken ZX Spectrum? :(Hi! I bought a 2nd hand ZX Spectrum half a year ago. It worked perfectly fine when I first tried it. I put it back in its box which it was sent in, …
Any ideas whats wrong with my download speedA couple of days ago i noticed my download speed was really slow im on 8mb (though i usually only get 4-6mb). Im getting 100kbps download speed and t…
... on the down line. A multimeter should be sufficient to tell ...Any ideas whats wrong with my download speedA couple of days ago i noticed my download speed was really slow im on 8mb (though i usually only get 4-6mb). Im getting 100kbps download speed and t…
... on the down line. A multimeter should be sufficient to tell ...Two dead SpectrumsHi all, Long time since I posted on here. I'm having a bit of a clear-out, and I've re-discovered two Spectrums I had in the loft : One is an orig…
... to these voltages with a multimeter.
If you don ...Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
... can and check with the multimeter in continuity (better yet, in ...Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
If you measure a resistor in circuit, it's likely you'll get something you don't expect because the current may be flowing around other ways between your multimeter probes rather than just through the resistor.Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
... , and the current from your multimeter will find a path through ...Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
... 've reworked. Basically, put the multimeter minus probe in pin 1 ...Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
... are measuring this with the multimeter at it lowest Ohm range ... current flows powered by the multimeter, and nothing else).
dead issue 6a boardI've just been back to the uk and found my old 48K + there - and bought it back with me to singapore - it's giving white border and red bars. From wh…
... 't detect it with a multimeter most times. Frequently, it manifests ...Burnt Out My 48K. HELP!I have a number of spectrums I powered one up wrong today and killed it. I had a power supply that a while ago I rigged up to work with both the ZX8…
Buy a cheap multimeter, and use it every time you're in doubt about polarity. You don't need to spend more than ca ?10 for a crappy meter that suits this purpose.
