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<1…18192021222324…34>
  • ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …

    ... ok, because 5V is ok (ula is working), +12V is ok, because ... colors are working. -5V is OK ... 26 of CPU (should be +5V) (does it react to reset ... short to other pin or +5v or ground.

    Pavel
    willcz willcz October 2010 Hardware
  • Opus Discovery 1 problem insideHi folks, when I opened my Opus Discovery 1 I have probably wrecked a regulator that is connected to the mainboard by three cables. Regulator 2 is wi…

    ... QuickDOS added.

    The 12V for the floppy drive is ... />
    Regulator REG2 handles the 5V. Note that the middle connector ...
    roko roko October 2010 Hardware
  • ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …

    ... ok, because 5V is ok (ula is working), +12V is ok, because ... colors are working. -5V is OK ...
    csmith csmith October 2010 Hardware
  • +2A PSU test helpIs it possible to test a PSU to see if it is dead any other way than plugging into the computer and the light not coming on/no power? I'd like to fi…

    [QUOTE=BloodBaz;486646]Does the +2A PSU supply more than just a 9v rail?
    Someone else may know more than me however.[/QUOTE]

    it doesn't have 9v at all. It is 5v, 12v and -12v (and 0v obviously)
    guesser guesser October 2010 Hardware
  • Spectrum +3 doesn't workMy recently ebay purchased +3 arrived today, so I was quite excited to have one again. I plugged it in and all was well, except for a slightly worry…

    ... alternative is that you need 5v, 12v and -12v for everything to work ...
    guesser guesser October 2010 Hardware
  • Spectrum +3 doesn't workMy recently ebay purchased +3 arrived today, so I was quite excited to have one again. I plugged it in and all was well, except for a slightly worry…

    ... alternative is that you need 5v, 12v and -12v for everything to work ...
    Alien 8 Alien 8 October 2010 Hardware
  • Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…

    ... means that the 5v supply has failed, but the 12v supply is ... very easy to kill the 5v supply, a brief short circuit ...
    guesser guesser November 2010 Hardware
  • Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…

    ... means that the 5v supply has failed, but the 12v supply is ... very easy to kill the 5v supply, a brief short circuit ...
    Alien 8 Alien 8 November 2010 Hardware
  • Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…

    ... hazard a guess that the 5V linear regulator let out the ... where there should only be 5v or 12v resulting in yet more ...
    Winston Winston November 2010 Hardware
  • 48k rubber key screen corruption[IMG][URL=http://img195.imageshack.us/i/img7398g.jpg/][IMG]http://img195.imageshack.us/img195/5563/img7398g.th.jpg[/IMG][/URL] Uploaded with [URL=htt…

    ... failed and taken out the -5v and 12v supplies. (or vice versa ...
    guesser guesser December 2010 Hardware
  • The Idiot's guide to 3.5 inch floppies on a +3All help gratefully received, including blow by blow instructions and tutorials. I am interseted in adding a floppy drive (3.5 inch) to my +3 as an …

    ... />
    yes you'll need 5v, 12v and ground. Ideally the same ...
    guesser guesser December 2010 Hardware
  • The Idiot's guide to 3.5 inch floppies on a +3All help gratefully received, including blow by blow instructions and tutorials. I am interseted in adding a floppy drive (3.5 inch) to my +3 as an …

    ... similar.
    Amiga provides +12V and +5V on its external floppy connector ... PC drives usually need only +5V supply. (I think)
    orange orange December 2010 Hardware
  • The Idiot's guide to 3.5 inch floppies on a +3All help gratefully received, including blow by blow instructions and tutorials. I am interseted in adding a floppy drive (3.5 inch) to my +3 as an …

    ... similar.
    Amiga provides +12V and +5V on its external floppy connector ... floppy drives *do* still need 12v for the motor but different ...
    guesser guesser December 2010 Hardware
  • Powering up a Speccy after long-term storage.Staying at my folks for Christmas. Feels good to be back in God's country again, even if it is -12C outside at the moment. :-o Anyway, I was plannin…

    ... . If caps at the +12V or -5V supply rails are malfunctioning, those ... ), C34 - 22uF (5V rail), C44 and C45 - both 100uF (12V rail) (this ...
    mcleod_ideafix mcleod_ideafix December 2010 Hardware
  • broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…

    oh, :cry:
    thanks for the link.

    Vbb is 0V (should be -5V)
    Vdd is 8,6V (should be +12V)
    Vcc is 4,9V (should be +5V)
    orange orange December 2010 Hardware
  • broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…

    ... be -5V)
    Vdd is 8,6V (should be +12V)
    Vcc ... is 4,9V (should be +5V)[/QUOTE]

    the 5v line is fine, so your ...
    guesser guesser December 2010 Hardware
  • Testing memory/transistors etc with multimeterAnyone have a rough guide to show how to do this properly? Im using the diode setting on the multimeter to test various components, im touching the b…

    ... you to identify the +5v, -5v and 12v which are so often a ... internal power supply is producing -5v and 12v when under load.
    RST#08 RST#08 January 2011 Hardware
  • Testing memory/transistors etc with multimeterAnyone have a rough guide to show how to do this properly? Im using the diode setting on the multimeter to test various components, im touching the b…

    ... corner pin, reads 12v, bottom right corner pin, reads 5v, well at ...
    Macc Macc January 2011 Hardware
  • Amiga 1200 death (1996-2011)I'm off work this week so i thought i'd dig out my old Amiga 1200 and play some old games. My Amiga is in a cupboard next to the front door, to my …

    ... to go is the 12V line. The 5V line has enough power ... up and running, but without 12V the drive appears faulty. I ...
    joefish joefish January 2011 Chit chat
  • Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…

    ... at them funny and the -5v/12v supply fails and the lower ...
    guesser guesser February 2011 Hardware
  • Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…

    ... at them funny and the -5v/12v supply fails and the lower ... -DC converter module for the 12v needed for the video.
    spodula spodula February 2011 Hardware
  • Possible design fault in +2A/+3 power pack. Fix?It's the second time a +3 power pack ceases to work when I make a short while using the scope to diagnose a +2A/+3 computer. And it's the second tim…

    ... output 5V again and then the max. current taken from 12V would ...
    roko roko February 2011 Hardware
  • Spectrum 48k on/off switchWanted: Spectrum 48k on/off switch... These originally fitted to the back of the Spectrum, in which the PSU lead plugged into. They incorporated a r…

    ... delivers 9V (or maybe 5V) and 12V separately instead of the Speccy ...
    joefish joefish February 2011 Wanted
  • Spectrum 48k on/off switchWanted: Spectrum 48k on/off switch... These originally fitted to the back of the Spectrum, in which the PSU lead plugged into. They incorporated a r…

    ... delivers 9V (or maybe 5V) and 12V separately instead of the Speccy ...
    Alien 8 Alien 8 February 2011 Wanted
  • +2A / +2B / +3 Power Supply QuestionIf I'm going to put a switch in the power lines of a +2B, do I need to switch the +5V, +12V and -12V all off to make it safe to remove peripherals, o…

    ... need to switch the +5V, +12V and -12V all off to make it ...
    guesser guesser February 2011 Hardware
  • +2A / +2B / +3 Power Supply QuestionIf I'm going to put a switch in the power lines of a +2B, do I need to switch the +5V, +12V and -12V all off to make it safe to remove peripherals, o…

    ... /> So, are the two +5V and two +12V lines on the pinout ...
    joefish joefish February 2011 Hardware
  • +2A / +2B / +3 Power Supply QuestionIf I'm going to put a switch in the power lines of a +2B, do I need to switch the +5V, +12V and -12V all off to make it safe to remove peripherals, o…

    ... /> So, are the two +5V and two +12V lines on the pinout ...
    guesser guesser February 2011 Hardware
  • 2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…

    ... picture, first check that the 5V and 12V power rails work. If ... voltages seem correct; Aprox. 12V Input and 5V Output.[/quote]

    5V power rail is not enough: you have to check the 12V ... and the -5V power rails to ensure ...
    mcleod_ideafix mcleod_ideafix February 2011 Hardware
  • 2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…

    ... picture, first check that the 5V and 12V power rails work. If ... getting those same 12V as input and a steady 5V output.
    12V and the -5V power rails to ensure ... getting about -5V on pin 1, +12V on 8, and +5V on 9 ...
    Diogo Diogo February 2011 Hardware
  • Some 48k+ packages for saleSoon! Rwap is sending over a few membranes for 48k+ machines, so far, got two fully functional (and looking good!), soon as the membranes are in the…

    ... manual and found that the -5V was missing so, not knowing if ... by running them without the -5V, I switched off. I had ... to try and find the missing -5 volts but there is ... to find out where the -5V is getting lost.

    weathereye weathereye February 2011 Sales
<1…18192021222324…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

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12v 1.9K 3.2K
5v 3K 4.9K

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