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Search Again :: Adv Search 1000 results in 0.039s
<1234567…34>
  • Issue 1 oddityHello to everybody, I have a very first under my hands - a broken Issue 1. Apart from the classic "broken lower RAM" syndrome which will be easily t…

    ... been found on pin 13 of LM1889.

    Changed LM1889, no visible ... , nothing goes into the LM1889. Voltages are correct, pin 3 (chroma bias) shows ...
    Falco-F8L Falco-F8L November 2014 Hardware
  • Speccy 48K working only as B&WMy 48K rubber key was working OK after a composite video mod (showing colors). But now it has no colour anymore. It only shows images in B&W. With pr…

    ... the colour right. (Volt between Pin 3 and 4 - Vr1 - should be ... to 138mV, and volt between Pin 3 and Pin 2 - Vr 2 - should ... -50mV and -75mV on the LM1889 chip).

    Update: After ... and place "sucker" on the pin and release it. By repeating ...
    Johan1973 Johan1973 April 2012 Hardware
  • Speccy 48K grey screenGot a issue 2 48K speccy as part of a job lot on ebay, tested it and apart from a duff membrane it appears to be working. However the screen is a gre…

    ... chroma bias level on IC14 pin 3 such that the voltage difference ... measured between pin 3 and the colour difference signals ... 3 respectively is nominally 0V d.c.[/QUOTE]IC14 is the LM1889 ... such that pins 2 and 3 have the same average voltage ...
    RetroTechie RetroTechie February 2013 Hardware
  • No CLK on issue 2 ULA pin 32I'm trying to fix an issue 2. The symptoms are as follows:- Black and white bars on screen, colours near impossible to tune in, although these po…

    ... pins 2 and 3 (for
    VR2) on IC14 (LM1889). To a ... are given relative to pin
    3 of LM1889.

    Pot._____ ...
    povvercrazy povvercrazy April 2017 Hardware
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ... can supposedly be taken from pin 3 on the peripheral port underside ... connector aren't numbered. Which pin is number 3?

    Thanks ...
    Bacon Bacon June 2003 Sinclair Miscellaneous
  • The Quest for the holy componentsHi all, I am in the need of the following components for my MB02+. Can any of you guys help me on this as I cannot find in them in my 'areas'. 1 x …

    ... real time clock module 18 pin
    3 x EliteMT LP621024D-70LL ...
    Anestis Anestis February 2007 Hardware
  • Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…

    ... pin 4 (out)
    2 RS232 pin 5 CTS (out)
    3 RS232 pin 3 ... RXD (out)
    4 AUX pin 3 ... (in)
    5 AUX pin ... 5 (in)
    6 RS232 pin ...
    ASM ASM October 2010 Hardware
  • Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …

    ... *********************/
    PIN 2 = IORQ;
    PIN 3 = RD;
    PIN 4 = A0;
    PIN 5 ... = KB0;
    PIN 6 ... = KB1;
    PIN 7 = KB2;
    PIN 8 ...
    Winston Winston October 2010 Hardware
  • SPRINTER 2000 and kempston joystickInfo about connection kempston joystick connector on Sprinter 2000 are corrected. My previous documentation contain bugs. Here is all OK (tested on r…

    ... (joy_vcc) --> joystick connector pin 7
    pin 5 on pinhead (joy_right ... pin 4
    pin 6 on pinhead (joy_left) --> joystick connector pin 3
    pin ... 7 on pinhead (joy_down) --> joystick connector pin 2
    pin ...
    velesoft velesoft November 2010 Hardware
  • Sinclair QL ProblemHi there. I purchased recently four Sinclair QL for a not small amount of money. Two german and two english, they are mixed: British or European conn…

    ... not work, only monochrome output (pin 3) is ok. Do anyone (like ...
    LCD LCD April 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... the CPU (A14)
    Pin 3 (output from first NAND gate ... ) is connected to pin 13 (input to fourth ... the edge connector
    Pin 5 (input to second ... to same line as ENABLE pin on IC4 (SN74LS157N multiplexer ... goes to ULA pin 37 (A15)
    Pin 11 (output from ...
    cmonkey cmonkey October 2011 Hardware
  • ZX 48 issue 4S no s-video possible?No s-video on ZX 48 issue 4S possible? I have had this mod on my issue 4A. But this did not work with my 4S. On C65 is no chrominance signal. Here …

    ... solder the color signal to pin 4 on s-video socket ... board corner) and soldered to pin 3 on s-video socket.
    Pin 1 & 2 on s- ...
    -Micky -Micky August 2012 Hardware
  • IDE 40pin COUPLERHello , Where would i get the opposite of this , I don't even know what i would need to type into google , It's for my divide, I have a sd card adapt…

    ... .ebay.co.uk/itm/40-Pin-3-5-IDE-Drive-Gender-Changer ... -Approx-14cms-In-Length-40-pin-80-wire-/221211715572?pt=UK_Computing_Drive_Cables_Adapters ...
    ricky006 ricky006 April 2013 Hardware
  • Bypassing bits of faulty ULAs: the LOAD!Hi everybody, Recently I had a sick Spectrum sent to me. The symptoms were that the machine would run fine, except that it wouldn't load. The border…

    ... hooked up buffer enable pin (pin 1) to pin 33 of the ULA ... . Next came the input - pin 28 of the ULA went ... the input (pin 2). Then the output - pin 30 of the ... ULA (D6) went to pin 3 of the buffer chip.
    pin 33 of the ULA ...
    Spirantho Spirantho July 2014 Hardware
  • Questions about GALsI'm working on an old danish floppy interface for the speccy ([url="http://allan.hoiberg.dk/eng/zx/"]CS-Disk[/url]) The original interface contain…

    ... PIN 3 = A14 ; /* */
    PIN 4 = A13 ; /* */
    PIN 5 = A12 ; /* */
    PIN 6 ...
    Rorschak Rorschak October 2016 Hardware
  • Power Play Joystick InterfacePower Play Joystick Interface for the ZX Spectrum. This is a Kempston compatible interface. Address decoding Any IO address where A5 is low... …

    ... 9 pin D plug.
    [code]Pin 1 - bit 3 - Up
    Pin ... 2 - bit 2 - Down
    Pin 3 - ... bit 1 - Left
    Pin 4 - bit 0 ... ----- - +5V supply
    Pin 8 - ----- - 0V/GND
    Pin 9 - ----- - not used ...
    1024MAK 1024MAK July 2017 Hardware
  • Atari (kempston) joystick adapter to Sinclair pinoutWhile going through one of my boxes filled with hardware bits I found the joystick adapter I used with the +2: [img]https://i.imgur.com/tlBHTco.jp…

    ... . I decided to check the pin correspondence on both plugs and ... /> Now, why is pin 5 (atari) wired to pin 1(sinclair) and ... pin 9 (atari) wired to pin 3 (sinclair ... plug make use for pin 1 or 3 ?

    Were there ...
    Renegade Renegade October 2017 Hardware
  • Philips monitor - CM8833 (not II) RGB pinouts?Anyone know the pinouts for the Philips CM8833 monitor? I can only find the CM8833-II pinouts on the Web, which uses a different kind of connector - …

    ... -Pin DIN)

    Pin 1: Status Computer (?)
    Pin 2: Red
    Pin 3 ... : Green
    Pin 4: Blue
    Pin 5 ... : Intensity
    Pin 6 ...
    trellis trellis May 2003 Sinclair Miscellaneous
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ...
    V VV
    So pin 3 underside on the short side ...
    Dr BEEP Dr BEEP June 2003 Sinclair Miscellaneous
  • Sinclair Spectrum +3 and the Amstrad CPC, using the CPCs monitor and discdrivesCPCs monitor on a Spectrum +3 I have a Spectrum +3 that I havent started using yet. The RGB-connector doesn't fit my Amstrad CPC-monitors (RGB). Is …

    ... t quoted as being Spectrum +3
    compatible, then the ... back of the +3.


    PIN FUNCTION
    RGB ...
    connected either to pin 3 of the RGB/PERITEL socket ...
    Amplifier

    The +3 normally reproduces sound through the ...
    ivarf ivarf May 2005 Sinclair Miscellaneous
  • How do you get an external tape recorder to work on a +2a?Just for the hell of it, just say the internal cassette player stopped working. What command would you use when hooking up an external player, so the…

    ... have always found the +3 supply unable to supply enough ... 7 to +30V) at pin 1, centre pin to ground (negative supply ... ), +5 V out on pin 3, at up to 1 Amp ... IN PLACE of the normal 3" drive then you can ... use the +3 supply.

    ...
    DEATH DEATH January 2006 Hardware
  • PS3 - Wintel killer?What do most households use computers for? Here's what I think are the core uses: Games Word processor Spreadsheet Web browsing Email Instant messag…

    ... /> 2. An old jumper pin.
    3. An old screw.
    4 ...
    Jmk Jmk June 2006 Chit chat
  • AMSTRAD monitor for SPECTRUM+3I have a monitor color Amstrad CTM644, can it function on a ZX Spectrum+3? So yes which is the connection? Sorry but I don't have the plans of the co…

    ... /> Look at the pin-out of the Spectrum +3 here:
    [url ... />
    And look at the pin-out of the CPC6128 here ... ). You'll need an 8-pin (Circular) DIN (M) and ... a 6-pin DIN (F).

    ... (or get it from pin 3 of the 8-pin DIN) into something ...
    Jmk Jmk November 2006 Hardware
  • Keyboard Problem?Hey all. I'm Dave I'm in my last year of college before I go to University. I'm in the UK. I got a +2 a while back when I first told my mum and dad…

    ... seen a broken) a +2/3 membrane. I think it's ... chips ?1
    Z80 processors ?3
    ULA chips for the ...
    UM1233 Modulators ?5
    LM1889 chips ?3


    All ...
    DEATH DEATH February 2007 Hardware
  • My latest invention: The PilsenerBoxI'm hereby proud to present "The PilsenerBox Mk I". A MUST for every Spectrum owner. [url]http://193.71.117.167/misc/pilsenerbox.jpg[/url] This m…

    ... on TDA's pin #1 stating "[B]To pin 8 on ... arrow in C9's open pin? Otherwise you would be ... down to VGND (virtual ground) pin #3.

    Additionally, I' ... d place a tree-pin jumper to select the channel ... and by shorting [B]2-3[/B] you amplify the [B ...
    Marcelo Marcelo February 2007 Hardware
  • My latest invention: The PilsenerBoxI'm hereby proud to present "The PilsenerBox Mk I". A MUST for every Spectrum owner. [url]http://193.71.117.167/misc/pilsenerbox.jpg[/url] This m…

    ... on TDA's pin #1 stating "[B]To pin 8 on ... arrow in C9's open pin? Otherwise you would be ... down to VGND (virtual ground) pin #3.

    [/QUOTE]
    < ... C9 is connected between pin 1 and pin 8 on the IC ... third solution could be a 3-way switch, where you ...
    Pilsener Pilsener February 2007 Hardware
  • 48K Speccy not workingHey, A few months ago (hope it&#180;s not to late) I was loading a game into my speccy and from one moment to another it stopped working! I unplugge…

    ... Spectrum 128+ outputs 9V, +3 PSU really gives +12V for ... pins 3 and 2, then between 1 and 2. Pin 2 ... it's connected to "ground". Pin 1 is the input of ... PSU is fed there. Pin 3 is the output and it ... quickly verified by desoldering only pin 3 of the 7805, powering ...
    Sonic Sonic May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ...
    Look at that 14 pin chip. Trace each signal line ... probably find pin 7 is GND and pin 14 is ... pin 3 is connected to pin 4, then MEMRQ to pin 5, then pin ... You can immediately tell pin 5 is an input and ... which signal goes to which pin on the mystery chip, ...
    Winston Winston May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... /> Pin 2 - connected to A14 of the cart slot
    pin 3 - shunted ... with pin 4

    pin 5 - shunted with pin 8 ... - NC
    pin 12 - NC
    pin 13 - NC
    pin 14 - connects ...
    odious odious May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... /> Pin 2 - connected to A14 of the cart slot
    pin 3 - shunted ... with pin 4

    pin 5 - shunted with pin 8 ... - NC
    pin 12 - NC
    pin 13 - NC
    pin 14 - connects ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Hardware
<1234567…34>

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