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Search Again :: Adv Search 707 results in 0.001s
<1…9101112131415…24>
  • ZX Spectrum 48k Issue 2 Faulty Ram?Hi, I have a faulty ZX Spectrum Issue 2 motherboard. Looks in very tidy condition. Though I'm getting random columns of blocks and flashing cursors…

    Standard electrolytic caps are OK. It is ...
    Pierre Pierre June 2013 Hardware
  • Issue 2 colour problemsHey all, I've got a slight colour problem with my Issue 2 Spectrum, as can be seen below: [IMG]http://www.bennyalford.com/images/issue2a.jpg[/IMG] …

    ... your Spectrum has its original electrolytic capacitors, it's probably a ...
    Zorn Zorn June 2013 Hardware
  • PlusDlite prototype/first batch is here![IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_143221.jpg[/IMG] [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153930.jpg[/IMG] …

    A good quality low ESR electrolytic (say 470uF or 1000uF) in ... ). Follow it with a 220uF electrolytic in parallel with a 100nF ...
    1024MAK 1024MAK June 2013 Hardware
  • Whistling power supplyThe 2A power supply I've been using for my speccies for the last 8yrs or so has in the last few days started giving a high pitched whistle continuous…

    ... type and one or more electrolytic capacitors are dying... This type ... some TLC and fit new electrolytic capacitors ;)

    [B][I ...
    1024MAK 1024MAK June 2013 Hardware
  • Whistling power supplyThe 2A power supply I've been using for my speccies for the last 8yrs or so has in the last few days started giving a high pitched whistle continuous…

    ... type and one or more electrolytic capacitors are dying... This type ... some TLC and fit new electrolytic capacitors ;)

    [B][I ...
    beanz beanz June 2013 Hardware
  • 48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…

    Try replacing all the electrolytic caps first. There are many topics in the forum describing how. The caps dry up due to age. If it starts up ok and then reset, it is normally a cap problem.
    Pierre Pierre June 2013 Sinclair Miscellaneous
  • 48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…

    ... voltage is supplied to an electrolytic cap.
    Details:
    [URL ...
    roko roko June 2013 Sinclair Miscellaneous
  • 48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…

    ... will be for dried up electrolytic caps, which will get up ...
    Pierre Pierre June 2013 Sinclair Miscellaneous
  • Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…

    ... to renew old 1980's electrolytic capacitors.

    A test ...
    1024MAK 1024MAK June 2013 Hardware
  • ZX-Spectrum 16KWanted working 16K machine for reasonable price I'm located in NY, U.S.A. Thanks!

    ... be installed.

    All electrolytic capacitors have been replaced with ...
    Zorn Zorn June 2013 Wanted
  • Spectrum +2(grey) rf problem not tuning inHi lads, first of all a quick intro. Im a speccy enthusiast in Ireland, had my first speccy when i was seven in 1987(grey +2). Eventually it got repl…

    ... line and also all the electrolytic capacitors (except one because I ...
    da_hambo da_hambo July 2013 Sinclair Miscellaneous
  • The right toolsAs i am going to pick up a hobby of fixing spectrums I wanted to know whats the right tools for the job. Like what wattage should the soldering iron …

    ... of general purpose components, axial electrolytic capacitors, general purpose transistors (BC547 ...
    DEATH DEATH July 2013 Hardware
  • Cassette Recorderlooking for a good cassette recorder for a zx Spectrum + Must be working and has to have a ear and mic socket. thanks

    ... will almost certainly need its electrolytic capacitors replaced with new ones ... PDG too, but again the electrolytic caps will be in need ...
    DEATH DEATH July 2013 Wanted
  • Composite mod display problemI'm fairly ham-fisted with a soldering iron but I thought I'd have a crack at the composite mod on two of my 48K rubber keys, as I'd already opened o…

    ... .

    Change the 22uF electrolytic that's C25 (I think)
    DEATH DEATH July 2013 Hardware
  • 16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…

    ... that fail etc.

    Electrolytic capacitors (made from 1970 onwards ...
    1024MAK 1024MAK July 2013 Hardware
  • Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…

    ... ] you could buy a 1uF electrolytic capacitor rated at 10V, that ...
    1024MAK 1024MAK July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... />
    It's likely other electrolytic capacitors have problems too and ...
    Zorn Zorn July 2013 Hardware
  • ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…

    ... tests and replacing all the electrolytic capacitors, I've just turned ...
    Zorn Zorn July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... change a 30 year old electrolytic on sight and not even ... to add here, that an electrolytic capacitor doesn't exhibit it ...
    DEATH DEATH July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... some errors.
    Second, with electrolytic capacitors, the voltage is the ... , so as the development of electrolytic capacitors continues, the case size ... /Electronic-Components/22uf-25v-Axial-Electrolytic-Capacitor-11-0125"]here[/URL ...
    1024MAK 1024MAK July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... . Apart from replacing all the electrolytic capacitors upfront and perhaps trying ...
    Zorn Zorn July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... . Apart from replacing all the electrolytic capacitors upfront and perhaps trying ...
    DEATH DEATH July 2013 Hardware
  • Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…

    The 100uF 25V electrolytic capacitor that is fitted nearest ... pads between this 100uF 25V electrolytic capacitor and the 7805 voltage ...
    1024MAK 1024MAK July 2013 Hardware
  • Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…

    ... pads between this 100uF 25V electrolytic capacitor and the 7805 voltage ... have no new 100uF 25V electrolytic capacitor here,
    I can ...
    Luzie Luzie July 2013 Hardware
  • Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…

    ... about replacing the cap. The 'electrolytic' inners must be ruined.
    roko roko July 2013 Hardware
  • Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …

    ... replacing/having replaced all the electrolytic capacitors. When old and dried ... if they're old. Old electrolytic capacitors are also a common ...
    Zorn Zorn July 2013 Hardware
  • Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…

    ... old/maybe defective 100uF 25V electrolytic capacitor, the interface was not ... got an new 100uF 25V electrolytic capacitor
    and one 100nF ...
    Luzie Luzie July 2013 Hardware
  • Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…

    ... : Put a new 100uF 25V electrolytic cap in, with the suggested ...
    Luzie Luzie July 2013 Hardware
  • Keyboard has a life of its own?I just received a Spectrum+ Issue 4S, where I had to replace the MIC connector and I also did the Composite mod. So far it works just fine, but when …

    ... are often caused by faulty electrolytic capacitors or dry solder joints ...
    1024MAK 1024MAK August 2013 Hardware
  • Repairing a torn trace on an Issue 2 PCBI've found what I think could be the reason for my Issue 2 board not working properly... There is a torn PCB trace beneath one end of where a new ULA…

    ... I have replaced all the electrolytic caps (apart from C34 which ...
    Simon_Carr Simon_Carr August 2013 Hardware
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