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Search Again :: Adv Search 1000 results in 0.108s
<1234567…34>
  • Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…

    ... 4164's, and how replacing C5-C8 with higher capacitance parts removed ... a whim I changed out C5 to C8 for 1uf caps, and here ...
    balford balford July 2013 Hardware
  • New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …

    ... issue 4A by changing caps C5 to C8 (immediately below the lower RAM ... caps installed (only had electrolytics to hand at the time, they ...
    balford balford July 2014 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... : Performing this modification to C1~C8 on a board that ... decouple" the +12V supply (C5 to C8 on the issue two schematic ... other four capacitors (C1 to C4 on the issue ... capacitors are not hard to get hold of, and ... not that great at helping to reduce the noise. The ...
    1024MAK 1024MAK August 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ... you do this, just do C5 to C8 first - they're the ones ... +12v supply.

    C1 to C4 filter the -5v supply ... be consequently of less relevance to the LM1889N supply.

    balford balford September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    [QUOTE=balford;790482]If you do this, just do C5 to C8 first - they're the ones that filter the +12v supply.[/QUOTE]

    Looks like I forgot the commandment "thou shalt check thy schematics"; I could have saved myself half the job! :lol:
    Trafferth Trafferth September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ... you do this, just do C5 to C8 first - they're the ones ... +12v supply.

    C1 to C4 filter the -5v supply ... be consequently of less relevance to the LM1889N supply.[/QUOTE]

    Just to back up your point, the ...
    Falco-F8L Falco-F8L September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ...
    [*]Various frequencies (up to 3.5MHz) from the digital ... meters).

    If C5 to C8 are replaced with 1uF multilayer ... used in the chip to interface to the outside world. The ... all the electrolytic capacitors used to smooth the outputs from ...
    1024MAK 1024MAK September 2014 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... , though not likely related to the failure. I assume ... the wire link (next to the EAR and MIC sockets ... br />
    I wanted to look at the links and ... strange metal bit attached to the end of the ... you look carefully at capacitors C5 to C8 in this photo, you' ...
    memrah memrah December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    [quote="memrah;843705"]I wanted to look at the links and ... very strange metal bit attached to the end of the PCB ... you look carefully at capacitors C5 to C8 in this photo, you'll ...
    Zorn Zorn December 2015 Hardware
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    Re: capacitors C5 to C8, some ceramic capacitors are coated ...
    1024MAK 1024MAK December 2015 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    Best thing I found for reducing video interference was replacing C5 to C8 (the 12v decoupling caps for the lower RAM) with 1nf ceramics. On mobile at the moment, but if you search my post history you'll find it :)

    B
    balford balford December 2015 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... reducing video interference was replacing C5 to C8 (the 12v decoupling caps for ...
    1024MAK 1024MAK December 2015 Hardware
  • Shimmering displayHi all, I've got a 48K issue 4S and it appears to be working apart from it's displaying weird vertical shimmering patterns. It passes a RAM test t…

    I swapped out c5 to c8 for the 1uf ceramics, no ...
    Jet5y Jet5y November 2016 Hardware
  • Character wobbleHello, I have an Issue 2 board which shows vertical character wobble. This happens for a few minutes followed by a few minutes of character sta…

    ... the machine with the problem to a known good working machine ... ULA from the good machine to the machine with the problem ... upgrading the +12V decoupling capacitors C5 to C8. Remove the existing 47nF capacitors ...
    1024MAK 1024MAK December 2017 Hardware
  • Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…

    ... is a test source to assemble once the game ... hl, ($d892) ; patched ix to hl (next packed scr)
    to $a0e3
    ld a,$80 ... fc, $67, $91
    defb $c5, $ff, $98, $ec, $bd, ... 73, $cc, $df, $b1, $c5, $01, $c8
    defb $30, $f9, ...
    FrankT FrankT July 2007 Games
  • Sir Clives at it again !This time with a lightweight foldaway bike... [url="http://www.thisislondon.co.uk/lifeandstyle/articles/11857444"]http://www.thisislondon.co.uk/life…

    ... is that supposed to mean? "I compared a C5 to a spin drier ... , but the C5 had more wheels and was easier to climb into ... that article should be compared to a gorilla.
    gasman gasman July 2004 Sinclair Miscellaneous
  • Man, did you know.... (C5)Rotterdam has it's own C5 website: [url]http://c5rotterdam.nl/C5_01_Home.htm[/url] :) [IMG]http://c5rotterdam.nl/afbeeldingen/Kop_C5_Rotterdam.jpg[…

    ... ]http://imcdb.org/vehicle_50525-Sinclair-C5.html[/url]

    [IMG ... d**k, who wants to mod his C5 to a body part, unless ...
    bverstee bverstee June 2012 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…

    I'm wondering if it's one of the lower RAM ceramic caps (C1 to C8 ) at fault? That vertical line didn't look to be present when the replacement lower RAM module was in place...

    Replacements are 47nf, 25V I believe.

    B
    balford balford July 2013 Hardware
  • Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …

    ... had initially a good idea to connect C8 to Pin 12 of IO11 ... using an IO19 74LS04 gate to connect to C8. This is completely nonsense ... low impedance this way connecting C8 to ground. In this case ( ... PLL is doubled because C8 is switched parallel to C9.
    The ...
    ingo ingo August 2013 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... much, much better performance compared to small value electrolytic capacitors of ... the moment, the capacitors to renew are C1 to C8.

    And ...
    1024MAK 1024MAK January 2014 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... much, much better performance compared to small value electrolytic capacitors of ... the moment, the capacitors to renew are C1 to C8.

    And ... /> @1024MAK: Performing this modification to C1~C8 on a board that has ...
    Renegade Renegade August 2014 Hardware
  • ChimeraI've been playing this excellent little game for years now. Can someone tell me where to take the first warhead (spanner and bolt)? The game tells me…

    ... bread and the cup to gain access to the key in H3 ... G2. Press the fire button to form a warhead, and ... C6. Get the object in C5 to form the last warhead, and ... take it to the blue room B7.
    To complete the game, go to the green room ...
    solaris104 solaris104 December 2016 Games
  • C5 at the CGExpoIf anyone is going to test drive the C5 at the forthcoming CGExpo, I'd love any MPEGs taken of that which I can include in the 1985 chapter of the YS…

    If anyone is going to test drive the C5 at the forthcoming CGExpo, I'd love any MPEGs taken of that which I can include in the 1985 chapter of the YSRnRY documentary!
    NickH NickH July 2004 Sinclair Miscellaneous
  • a magazine listing C5 gameAs the title says above. I remember typing in a listing from Sinclair User. This simple games in basic was a one button game where you had to help y…

    As the title says above. I remember typing in a listing from Sinclair User. This simple games in basic was a one button game where you had to help your c5 by jumping over oncoming spikes.

    Anyone remember the title of this one?
    GeeKay GeeKay February 2005 Games
  • Urgent Help needed to fix this: calling all machine code gurusI am currently trying to write tutorials on the amazing Orfeus music composer by Proxima which allows you to do multi channel music through the beepe…

    ... player. The code is exported to address 35000.
    < ... I am missing to allow it to run at any ... l8a23: inc hl
    sub #c8
    jr nc,l8a45 ; ... : inc hl
    sub #c8
    jr nc,l8a9f ; ... +1),hl
    sub #c8
    jr nc,l8b0a ; ...
    robpearmain robpearmain November 2006 Development
  • Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …

    ... calls
    cp16bytes_a: ; to cp2bytes avoids
    call cp16bytes_b ... ex de,hl ; used to copy block to screen
    ; ( ... ex de,hl ; used to copy block to screen
    ; ( ... defb $08,$88,$48,$C8,$28,$A8,$68,$E8,$ ... defb $05,$85,$45,$C5,$25,$A5,$65,$81,$ ...
    chev chev January 2007 Development
  • [Discussion] Planned corrections to: The Complete Spectrum ROM DisassemblyOk, folks. Since I'm not obtaining replies from those involved in the previous effort to transcribe The Complete Spectrum ROM Disassembly, I'm going …

    ... involved in the previous effort to transcribe The Complete Spectrum ROM ... Table of Contents and corrections to the accompanying txt file this ... 05CA) [StuBruise]
    'LD A,+C5' should be
    'LD A ... , since this is not related to Infoseek anymore.

    ...
    rahtgaz rahtgaz December 2008 Sinclair Miscellaneous
  • Some kid pedalled past my window in C5 todayWhile teaching in an ICT room, a pupil 'drove' past piloting a bona fide Sinclair C5. I couldn't leave to go after him, and find out the reason or st…

    ... bona fide Sinclair C5. I couldn't leave to go after him ... brought it in for something to do with science, but I ...
    MattLamb MattLamb March 2014 Chit chat
  • Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…

    ... caps, composite modded it, swapped c5-c8 with 1uf multilayer ceramic caps ... if this is something specific to the 4S or if anyone ...
    retrogamemart retrogamemart September 2014 Hardware
  • Sinclair C5 for sale (in mint condition) for charityI noticed this in my local charity shops window: [IMG]http://www.whitehorsenews.co.uk/blog/wp-content/uploads/2014/09/Imperial-charity-Sinclair-C5-3…

    ... /2014/09/Imperial-charity-Sinclair-C5-300x161.jpg[/IMG]

    to hopefully get a bit of ... publicity, if anybody wants to spread this round the retro ... do.

    Good luck to anybody bidding. :)
    Neil L Neil L September 2014 Chit chat
<1234567…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
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