ZX Spectrum 16/48K

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Computers

  • Sinclair ZX Spectrum 48K (1) - 1983 Issue 3 - 001-529649 (Green) [Working]
Spectrum 48K (1) - 1983 Issue 3 (Before repair and restoration)
  • Sinclair ZX Spectrum 48K (2) - 1983 Issue 3 - 001-561807 (Green) [Faulty Keyboard / Cracked Membrane Working]
Spectrum 48K (2) - 1983 Issue 3 (Before repair and restoration)
There's your problem! - Cracked keyboard ribbon cable
  • Sinclair ZX Spectrum 48K (3) - 1983 Issue 3B - 009-774823 (Red) [Faulty - Thick Bars On-screen - Probably Lower RAM at fault. Speaker Noise. Replaced ULA. Boots. Requires new K/B Membrane. 50% Working. ]
Spectrum 48K (3) - 1983 Issue 3b (Before repair and restoration)
Spectrum 48K (3) - 1983 Issue 3b (Bar fault)
  • Sinclair ZX Spectrum 48K (4) - 1984 Issue 6A - 151-489557 (Red) [Faulty - Scrambled Display - Possibly Transistor TR4 at fault + Lower RAM. Replaced TR4. Boots. Requires new K/B Membrane. 50% Working.]
Spectrum 48K (4) - 1984 Issue 6A (Before repair and restoration)
Spectrum 48K (4) - 1984 Issue 6A (Scrambled video)
  • Sinclair ZX Spectrum 48K (5) - 1983 Issue 3 - 001-504286 (Green) [Untested]

History/Log

  1. 5th August 2020 - Purchased at Auction for £84 (Four ZX's with a collection of books and games).
  2. 8th August 2020 - Basic testing of the Speccy's, only two out of the four work.
  3. 20th August 2020 - Tinkered a bit (opened up the cases). Discovered broken keyboard cable. Voltage regulators check OK. Logged faults.
  4. 11th October 2020 - Purchased another ZX Spectrum, boxed. Along with a ZX81 - both for £48. Case number 001-504286 - another 1983 Issue 3.
  5. 13th February 2021 - Re-capped the two working ZX Spectrums. Replaced voltage regulators with 'TRACO Power TSR 1-2450'. Completed Composite mods (with 100uF capacitors) and disconnected RF units.
  6. 27th February 2021 - Worked on the 6A Board. Replaced TR4 (was missing -5v) and resolved the issue. ZX Booted to Copyright screen for the first time ever! Replaced all caps, completed composite mod and switched out Voltage regulator for Traco unit. Discovered the keyboard membrane was faulty so ordered a new one!
  7. 27th February 2021 - Started tackling the 3B board. Fails to boot and has constant speaker noise whilst powered. Replaced Voltage regulator + power socket. Completed Composite Mod. Provides clear picture with cyan border and thick black bars - still buzzing from the speaker. Piggybacked RAM onto various lower RAM chips which altered the picture occasionally - and some RAM chips changed the tone of the buzz from the speaker, but nothing made a significant difference. With little else to do, I thought I'd swap out the ULA (just because I had one to spare) and BOOM! Speccy booted to copyright screen! Amazeballs!

Games & Software

Yes... this is a full list of Spectrum games on the 16/48k page. It's temporary! :P

Spectrum 16/48k

  • 3D Strategy Spectrum Games - Quicksilva : [1]
  • Bouncing Berty + Eskimo Capers - POWERSoftware : [2]
  • CASSETTE 50 - Cascade Games : [3]
  • Genner-80 - Full Screen Editor Assembler - Seven Stars : [4]
  • Horace & The Spiders - Beam Software / William Tang : [5]
  • Horizons Software Starter Pack - Psion Software : [6]
  • Tranz AM - Ashby Computers & Graphics Ltd : [7]
  • ZX Spectrum + User Guide Companion Cassette - Goldstar (UK) : [8]

Spectrum 48k

  • ADVENTURE C: SHIP OF DOOM - Artic Computing Ltd / Charles Cecil (UK) : [9]
  • Auf Wiedersehen Monty - Gremlin : [10]
  • Biology - Hill MacGibbon : [11]
  • Bosconian 87 - Mastertronic : [12]
  • Chess - The Turk - Oxford Computer Publishing : [13]
  • Chemistry - Hill MacGibbon : [14]
  • Chiller - Mastertronic : [15]
  • Compact Office (Data Base, Home Accounts, Word Processor, Worksheet) - Robtec : [16]
  • Cosmic Wartoad - Ocean {SEALED} : [17]
  • Cybo Run + Super Gran - Dixons : [18]
  • Cyrus II - Alligata Software Ltd : [19]
  • Feud - Bulldog Software : [20]
  • Fighting Warrior - Melbourne House {SEALED} : [21]
  • Finders Keepers - Mastertronic : [22]
  • Footballer of the Year - Gremlin : [23]
  • Formula 1 Simulator - Mastertronic : [24]
  • Gary Lineker's Superstar Soccer - Gremlin : [25]
  • Gauntlet - Atari Games : [26]
  • Gauntlet: The Deeper Dungeons - Atari Games : [27]
  • Glass - Bug-Byte : [28]
  • Jackle & Wide - Bulldog Software : [29]
  • Jet Set Willy - Software Projects : [30]
  • Kane - Mastertronic : [31]
  • Kickstart 2 - Mastertronic Ltd : [32]
  • Make-A-Chip - Sinclair Research Ltd : [33]
  • Sky Ranger : Microsphere : [34]
  • Snooker : Visions : [35]
  • Spellbound - Mastertronic Added Dimension : [36]
  • Star Games One - Gremlin Graphics Software : [37]
  • Stock Control - Kemp : [38]
  • S.T.O.R.M - Mastertronic : [39]
  • Tapper - SEGA : [40]
  • The Goonies - Datasoft : [41]
  • The In Crowd - Ocean Software : [42]
  • The Joffe Plan - Mirrorsoft : [43]
  • The SEGA Collection - U.S. Gold Ltd (UK) : [44]
  • The Way of the Tiger - Triple-Scroll {SEALED} : [45]
  • Legend of the Amazon Women - SilverTime : [46]
  • Lunar Jetman - Ashby Computers & Graphics Ltd : [47]
  • M-Ultimate - Britannia Software Ltd : [48]
  • N.O.M.A.D - Ocean {SEALED} : [49]
  • Super Cycle - Epyx : [50]
  • Vector Mathematics - International Computers Ltd (ICL) : [51]

Spectrum 48k/128k

  • 3D Starfighter - (Oliver Twins) - Codemasters : [52]
  • 10 Computer Hits 3 - Beau Jolly : [53]
  • Fruit Machine Simulator - Codemasters : [54]
  • Grand Prix Simulator - Codemasters : [55]
  • Hacker - Activision : [56]
  • I.C.U.P.S. - Thor Computer Software : [57]
  • Magnificent Seven - Ocean Software : [58]
  • Scrabble DeLuxe - Leisure Genius (UK) : [59]
  • They Sold a Million #3 - Hit Squad : [60]
  • Thing Bounces Back - Konix (Free Gift) : [61]
  • Trivial Pursuit - Domark Limited : [62]

Spectrum 48k/+2

  • Professional Snooker Simulator - Codemasters : [63]

Spectrum 48k/128/+2

  • Agent X - Mastertronic {x2} : [64]
  • Bomb Jack - Tecmo Ltd : [65]
  • Double Dragon - Mastgertronic plus : [66]
  • Ghostbusters - Mastertronic : [67]
  • Kickstart 2 + Course Designer - Mastertronic
  • Manic Miner - Mastertronic : [68]
  • Olympic Spectacular - Alternative Software Ltd
  • Thrust II - Firebird : [69]
  • WAR CARS Construction Set - Firebird : [70]

Spectrum +2

  • Boots Action Pack (Kung Fu Master, Top Gun, Jack the Nipper, Auf Wiedersehen Monty) - US Gold : [71]
  • Dixons Premier Collection for Your +2 - Dixons [72]

Spectrum +3

  • Action Pack - Light Gun Games : [73]
  • Afterburner : [74]
  • Coin-Op Hits : [75]
  • Out Run : [76]
  • Return of the Jedi : [77]

Spectrum 16k

  • Pool - Blue Ribbon : [78]

Spectrum ?

  • Cassette Five - Orwin Software

Books & Magazines

  • Maximize your QL - Susan Curran & Ray Curnow
  • Microguide for the ZX Spectrum - Prof. Peter Morse and Brian Hancock
  • Personal Computer - The Best Software Guide Spectrum Games - Tony Takoushi
  • Spectrum Hardware Manual - Adrian Dickens
  • Spectrum Spectacular - Roger Valentine
  • The Complete Spectrum - Edited by Allan Scott
  • The ZX Spectrum and how to get the most from it - Ian Sinclair
  • Turbocharge your ZX Spectrum - John Lettice
  • ZX Spectrum - Basic Programming - Steven Vickers
  • ZX Spectrum - Microdrive and Interface 1 manual
  • ZX Spectrum+ User Guide

External links