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  • Anatomy of a bad M1No, not the motorway (although at times the tarmac M1 goes about as well as this one...) But the bad M1 problem that seems to occur most with issue …

    ... Z80 is a Zilog made chip, date coded 8425 (25th week ...
    Winston Winston July 2012 Hardware
  • Replacing Upper RAM in 48KHi Folks Well, my fun continues :) After sorting the display issues with this machine I found I couldn't load software meant for 48K machines. Havin…

    ... else than remove the faulty chip, install a socket and insert ... moment but at ?4 per chip they seem a little expensive ...
    spookt spookt July 2012 Hardware
  • z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…

    ... when new had a Mostek chip).

    Finally, is there ... this test on the Mostek chip and it doesn't seem ...
    Winston Winston July 2012 Development
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... defective, not responding to the chip select correctly??

    I ...
    bverstee bverstee July 2012 Hardware
  • DivIDE Plus tech support?Hi! I'm trying to fix a damaged DivIDE Plus. The thing keeps cycling in the boot screen. As there are no schematics (besides the Diwi 212 prototype…

    ... .

    But swaping that chip seems no to be enough ...
    mcleod_ideafix mcleod_ideafix July 2012 Hardware
  • ROM-elHi, I have a bunch of [URL="http://store.go4retro.com/products/ROM%252del-23128%7B47%7D23256-FLASH-ROM-Replacement.html"]these[/URL]. They are 23128…

    ... "]these[/URL]. They are 23128 chip replacements using Atmel AT49F001 flash ... idea how) and put the chip into Speccy. And somehow convince ...
    tstih tstih July 2012 Hardware
  • Happy 30th Birthday Commode.Happy Birthday to you, Happy Birthday to you, Happy Birthday dear Bread Bin, All your colours look like poo. Though your sound chip is woah, Your re…

    ... .

    Though your sound chip is woah,
    Your resolution ...
    Scottie_uk Scottie_uk August 2012 Chit chat
  • Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…

    ... of solder splatter when the chip is removed. I then ... , gently prying at the chip to remove (in this ... Spectrum ROM has two chip selects and a read pin ... unused inputs on this chip are soldered to the most ... convenient place (either the chip's Vcc or ground) - ...
    Winston Winston August 2012 Hardware
  • TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …

    ... only first 8kB of rom chip (on divide use only 8kB ... eeprom chip). Not need ZX ram.
    velesoft velesoft August 2012 Sinclair Miscellaneous
  • Simple AY library in z88dk/CI was interested to see if I could make the 128k AY chip work, and as there wasn't any library on it, I just made one for fun. It's certainly not th…

    ... could make the 128k AY chip work, and as there wasn ...
    Timmy Timmy August 2012 Development
  • Some more PC questions1. Since we ended up discussing Linux in another thread, it made me wonder is Linux really, objectively faster than Windows? I mean, can you run, say…

    ... don't just redesign the chip to support faster speeds, and ... strictly according to whether the chip is 32bit or 64bit?), CPUs ...
    ewgf ewgf August 2012 Chit chat
  • Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …

    ... yet to add an AY chip to provide sound out.
    chip, or is there anything else ...
    Johan1973 Johan1973 August 2012 Hardware
  • Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …

    ... worked (mostly). Change a RAM chip, and the display cleaned up ...
    Spirantho Spirantho August 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K ... , and a small platform flash chip to store FPGA configuration. An ... than to solder one big chip with hundreds of pins.
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • Problems with stereo kit for AYSomeone has bought a stereo kit from me to add to his 128K ZX Spectrum. Problem however is that one of the channels is a less loud than the other tw…

    ... .
    I suspect the AY chip to have a problem, but ... it still be the AY chip having a problem?

    bverstee bverstee September 2012 Hardware
  • Replaced Z80 now a very dark screen!Today I dag out an old issue 3 that ive known for a long time has a faulty Z80 (M1 line) so I heat gunned it out, socketed it and replaced it with a …

    ... something has whilst removing the chip
    Macc Macc September 2012 Hardware
  • 8-bit gaming and geek weekend in Derby (17-18th November).Chris Snowden phoned me last night to speak about organising an 8- and 16-bit gaming event in Derby for the 17th and 18th of November, and well thing…

    ... those who can afford to chip in.

    If you ...
    Shaun.Bebbington Shaun.Bebbington September 2012 Announcements
  • Help me resurrecting a 128KHello to everybody. I'm really struggling along a repair of a standard 128K a friend of mine handed me over some (ok, actually a lot of) time ago. A…

    ... translate into a bad RAM chip. I've already changed the ... at about 295 KHz. AY Chip is very slightly warm to ...
    Falco-F8L Falco-F8L October 2012 Hardware
  • just late afternoon relax...and 3 months of live...1. Hardware joke [B]ANGRY SPACE INVADER [/B] [url]http://www.youtube.com/watch?v=IToay3TsEvs[/url] [LIST] [*]Dimensions : 82 x 50 mm [*] Colo…

    ... 1 Joytick interface
    [*] Main Chip:ATF1502 CPLD
    [*] Passtrough, it ...
    lotharek lotharek October 2012 Hardware
  • For Sale - Sinclair Spectrum Software - Various Titles - All Boxed OriginalsHi, Having a clearout and have the below original, boxed software for sale. Please contact me via PM if you're interested:- Arcade Hall of Fame (i…

    ... , Hunchback II)
    Make-A-Chip
    Scrabble
    Survival
    davesarah99 davesarah99 October 2012 Sales
  • [Free] BBC MasterHopefully this thread is OK with the mods, Figuring (1) its a freebie and (2) we all like preserving older hardware anyway. Right then, I need to re…

    ... with the soldered in MOS chip although this would depend if ...
    spider spider October 2012 Sales
  • Job lot of various hardware & software for sale.Hi, I put a post up a while ago and sold a lot of my stuff but I've still got a boxful left over, is anybody interested in taking it off my hands? I …

    ... /> survival instruction book ***RARE***
    alphacom 32 users manual
    the ...
    Neil L Neil L October 2012 Sales
  • Random Acts 5. A love letter to the games consoles of yesteryear.dunno if anyone else saw that on channel 4, I caught a bit of it while channel hopping.. 4od didn't show it / they not updated the link.. was chip m…

    dunno if anyone else saw that on channel 4, I caught a bit of it while channel hopping.. 4od didn't show it / they not updated the link..

    was chip music-ish etc.
    fog fog October 2012 Chit chat
  • Everdrive 64 (N64 backup device)Since I can't get N64 emulation to work right (unlike every other machine I try to emulate, why is N64 emulation still so riddled with incompatibilit…

    ... to change the game save chip type, as game saves are ...
    ewgf ewgf October 2012 Chit chat
  • Resurrecting the FAQ wikiprevious threads: [url]http://www.worldofspectrum.org/forums/showthread.php?t=28168[/url] [url]http://www.worldofspectrum.org/forums/showthread.php?t…

    ... content to encourage people to chip in with their additions - it ...
    gasman gasman October 2012 Sinclair Miscellaneous
  • DISCiPLE System tapesFollowing on from this thread... [thread=41561]Disciple trouble[/thread] I've found my System 2c tape for DISCiPLE interfaces that used ROM 2. I sa…

    ... , remove the ROM 2 chip, send the chip back to an address ...
    Jmk Jmk November 2012 Infoseek database
  • DUAL JOY interface - ANGRY SPACE INVADERfirst production pcb - no TH elements - just to show ;-) ps. leds are joystick indicators. ( directions/ fires..) [LIST] [*]Dimensions : 82 x 50 m…

    ... : BLACK PCB / WhitePCB
    [*] Main Chip:ATF1502 CPLD
    [*] Passtrough, it ...
    lotharek lotharek November 2012 Hardware
  • Ay Real Time Synthetizer SoftwareSpectlemen and Spectladies!It's been a long time that I'd like to ask this.... I ask thee to create a new musical software for our ZX Spectrum machi…

    ... ( real good control of the chip but it's only for ...
    DaRkHoRaCe DaRkHoRaCe November 2012 Development
  • Has anyone tried to upgrade a Fuller Box to a Fuller Master Unit?I've had a look inside my Fuller Box and there is a 28-pin socket inside, just the right size for a SP0256-AL2 speech chip. But there is another set…

    ... for a SP0256-AL2 speech chip.

    But there is ... a 14-pin socket or chip.

    Has anyone tried ...
    Jmk Jmk November 2012 Hardware
  • Sly Spy: Secret Agent - OceanAnyone want to make an offer before I pop it on eBay? When I say "offers" I really mean cash only please (PayPal is good!). Will not accept food, co…

    ... food, copies of Make-A-Chip or similar, unwanted family members ...
    richl richl November 2012 Sales
<1…14151617181920…34>

Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
    dmsmith on April 22
  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on April 22
  • Goodbye Z80
    moggy on April 22
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on April 22
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on April 22
  • I am currently watching.....
    Antiriad2097 on April 22
  • European Software Titles with an English version
    harriusherbartio on April 22
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on April 22
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on April 22
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

HitBox

Word Docs Hits
alphacom 156 191
chip 10.1K 13.6K

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