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Search Again :: Adv Search 932 results in 0.001s
<1…14151617181920…32>
  • Colour blocks on displayHi all, I have just acquired another Sinclair product, my first one being a C5, it's a 48K ZX Spectrum. It shows colour blocks on the display when p…

    [QUOTE=Zorn;602134]Those voltages are all correct, so the converter circuit must be working. That doesn't mean all the 4116 ICs are though.[/QUOTE]

    I have bought 8 4116 ICs so will replace them when they arrive and go from there.
    kamilb1998 kamilb1998 February 2012 Hardware
  • Colour blocks on displayHi all, I have just acquired another Sinclair product, my first one being a C5, it's a 48K ZX Spectrum. It shows colour blocks on the display when p…

    ... white. I will swap the 4116 chips for the replacements and ...
    kamilb1998 kamilb1998 February 2012 Hardware
  • 4116 and 4164 chip avaliableHi all, while clearing out lots of old odds and sods I have come across a fair number of old dram memory chips. I have 200+ 4164 from various manufa…

    No problem.

    Only 2 sets of 4116's left, once they go that's it !

    Found a set of 8 2114's as well, anyone need those ?
    And a few sets of 41256's
    And 9 8418's which a DRAM controller IC's
    shammster shammster February 2012 Hardware
  • Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …

    ... the lower RAM chips (8x 4116, lower left corner of the ... quickly by one or more 4116 RAMs dying too.

    RetroTechie RetroTechie February 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... aim is to produce a 4116 replacement using parts that are ... minimum time given in the 4116 datasheet. It has also been ... problem for some of the 4116 replacement circuits I have experimented ...
    Zorn Zorn February 2012 Hardware
  • Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …

    ... the lower RAM chips (8x 4116, lower left corner of the ... quickly by one or more 4116 RAMs dying too.

    dynaflux dynaflux February 2012 Hardware
  • ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…

    ... /> - I haven't got any 4116, but I've got some ... true?

    If those 4116 fails, I guess I'll ...
    Zup Zup February 2012 Hardware
  • Three faulty machines - help!I have three Spectrums and all of them have suddenly collapsed and I can?t figure out what?s wrong. New here.... I own three Speccies but all of a …

    ... 16K is formed by eight 4116 ICs. They should be specified ...
    Zorn Zorn February 2012 Hardware
  • Issue 4S users... I need your help!Short story: Issue 4S spectrum don't work. TR4 seems to have pins at different places from other speccys (BCE versus EBC), and usual replacement part…

    ... blew up. I removed all 4116 (but 12v still has the ...
    Zup Zup March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... indicate the positions of the 4116 sockets/PCB holes on the ...
    Zorn Zorn March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... lines from the Spectrum's 4116 sockets go directly to the ...
    Zorn Zorn March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... low) and (/CAS going low). 4116 DRAMs probably need some time ... is closer to what a 4116 might do). Say 100~150 ...
    RetroTechie RetroTechie March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... low) and (/CAS going low). 4116 DRAMs probably need some time ... be enough time for a 4116 and I think it is ... is closer to what a 4116 might do). Say 100~150 ...
    Zorn Zorn March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... SIMM memory module to replace 4116 DRAM's.
    [url]http ...
    mcleod_ideafix mcleod_ideafix March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... SIMM memory module to replace 4116 DRAM's.[/QUOTE]

    Zorn Zorn March 2012 Hardware
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…

    ... do what a horrible old 4116 can do.
    Zorn Zorn March 2012 Hardware
  • Issue 3B only sees 16k (and RAMTOP NO GOOD on loading)A ZX+ with issue 3B board that i got recently, does not see anything more than 32768 (sometimes 37267..) on "PRINT PEEK 23732 + PEEK 23733 * 256 (Ent…

    ... damaged low memory as well (4116 DRAM's) with a very ... by the regulator. Besides, the 4116 memory chips (those used for ...
    mcleod_ideafix mcleod_ideafix March 2012 Hardware
  • 48k Speccy chucks a wobblerI've got a problem with my rubber keyed 48k speccy. When it is first switched on everything is fine but after a couple of minutes the picture on scr…

    Still got a few 4116's left before there all gone
    shammster shammster March 2012 Hardware
  • 48K's and bad DivIDE compatibilityI have had some 48K boards and complete machines in the past which didn't work fully with a DivIDE interface. The reason for that always was a Z80 pr…

    ... /> The active parts remaining:
    - 4116 ram ic's
    - all ...
    bverstee bverstee March 2012 Hardware
  • TR4 is goneMy TR4 transistor is burned. Can I replace this transistor with a TIP31B or C ? My 4116 RAM ic?s are showing +0.05V, +5V and +8.49V... :) My Spectru…

    Sounds like something draws too much current. Maybe one or some of the 4116 have a internal short circuit and killed TR4 this way?
    LCD LCD April 2012 Hardware
  • TR4 is goneMy TR4 transistor is burned. Can I replace this transistor with a TIP31B or C ? My 4116 RAM ic?s are showing +0.05V, +5V and +8.49V... :) My Spectru…

    Hmmmm... I don?t know much about electronics. :)
    I?m only trying to learn fixing thie Speccy.
    Without the TR4, it turns on normally. But the voltages of 4116 are wrong.
    So if a 4116 is faulty, the TR4 can burn?
    Turrican Turrican April 2012 Hardware
  • TR4 is goneMy TR4 transistor is burned. Can I replace this transistor with a TIP31B or C ? My 4116 RAM ic?s are showing +0.05V, +5V and +8.49V... :) My Spectru…

    ... would first suspect a faulty 4116 or filter capacitor (one of ... measure the resistance between 0V (4116 pin 16) and:

    Zorn Zorn April 2012 Hardware
  • Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…

    ... found a dealer for the 4116 chips, the nice people from ... some articles on replacing the 4116 chips with 4164 and since ... in place of the broken 4116. Then I took out one ... to slip into the empty 4116 socket.

    Powered up ...
    deckard deckard April 2012 Hardware
  • TR4 is goneMy TR4 transistor is burned. Can I replace this transistor with a TIP31B or C ? My 4116 RAM ic?s are showing +0.05V, +5V and +8.49V... :) My Spectru…

    ... to not blow up my 4116 until I fix the voltages ...
    Turrican Turrican April 2012 Hardware
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

    4116 chips are sensitive buggers! I ...
    csmith csmith April 2012 Hardware
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

    [QUOTE=csmith;619593]4116 chips are sensitive buggers! I ...
    bverstee bverstee April 2012 Hardware
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

    Wouldn't there be a problem with the pinout if replacing the 4116 with 4164 ?
    Pin 8 on the 4116 is 12 volt and pin 8 on the 4164 should be 5 volt ?
    I always used a daughterboard to adjust the connections.
    Knik Knik April 2012 Hardware
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

    If just looking for replacemants components, then the 4116 is probably the easiest method.
    Just replace if the situation demands it.
    No tinkering required.
    Knik Knik April 2012 Hardware
  • Zx 48k after the ic7805 other problemHi everyone, i am Tiago from Portugal, and i am trying to repair a Zx Spectrum 48K. the machine didn't do anything, no image, no sound, nothing. The…

    ... lower left). I put the 4116 pin numbers in brackets after ...
    Zorn Zorn May 2012 Hardware
  • Dark Screen, non working 48k Spectrum (rubber key)I have an issue 1 (I think) "dead cockroach" 48k Spectrum. On power up I get a dark screen and the machine is unusable - see pics. Any ideas on the…

    ... supply voltages present at the 4116 ICs?

    Search these ...
    Zorn Zorn May 2012 Hardware
<1…14151617181920…32>

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  • Wanted 10 - 4116 Ram ChipsHi<br /> Can any one help I am trying to get hold of 10 4116 RAM chips for a 48K Spectrum. Does any one know who might stock them. I can get a minim…
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  • 4116 and 4164 chip avaliableHi all,<br /> <br /> while clearing out lots of old odds and sods I have come across a fair number of old dram memory chips.<br /> I have 200+ 4164 f…
  • 4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

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