Sinclair ZX Spectrum+ Garbage Screen Repair
Troubleshooting and repairing a Sinclair ZX Spectrum+ (issue 4A mainboard) that displays flashing garbage patterns on screen and does not properly start up.
The Speccy was kindly donated by https://www.gee-k.net (check out the website for tons of vintage computer tinkering and more).
You can watch my restoration of this Spectrum+ here: https://youtu.be/dYJ9Akv58D0
My ZX Spectrum composite mod tutorial video: https://youtu.be/5oFMaI7nqPU
The DivMMCfuture is available from The Future Was 8-Bit here: https://www.thefuturewas8bit.com/shop/sinclair/divmmcfuture.html
The MeanWell power supply I used is available here* (REMEMBER TO REVERSE THE POLARITY!):
US: https://amzn.to/2lKv4sb
UK: https://amzn.to/2li2tdC (a slightly higher rated one)
DE: https://amzn.to/2kcaEaY
The ZX Spectrum Diagnostics software is available here: https://github.com/brendanalford/zx-diagnostics/wiki
The (brilliant!) Return of Traxtor game you see me playing during the credits is available from the author's website here (among many others): https://www.usebox.net/jjm/return-of-traxtor/
----------------------------------------------
Music by Focus 10 https://soundcloud.com/user-993847645
EQUIPMENT AND TOOLS I USE: https://kit.co/janbeta *
TWITTER: https://twitter.com/thejanbeta
PATREON: https://patreon.com/janbeta
WEBSITE: https://www.janbeta.net
TWITCH: https://www.twitch.tv/thejanbeta
LBRY: https://open.lbry.com/@janbeta:b
YT CHANNEL MEMBERSHIP: https://www.youtube.com/channel/UCftUpOO4h9EgH0eDOZtjzcA/join
Thanks for watching!
* Stuff marked with "*" contains affiliate links. You don't pay anything extra and I get a little commission from everything you buy through the links (even if you buy something different there).
TIME STAMPS:
0:00 Introduction
1:46 Disassembly & Inspection
7:08 Composite Mod
10:10 Power Supply
10:41 Garbage Screen
11:08 Cleaning RCA Connector
11:35 Checking the Voltages
14:05 Replacing the Voltage Regulator
17:58 Different Garbage!
18:23 ULA Fault?
20:53 Piggybacking RAM
24:00 Replacing RAM & Touching up Solder Joints
31:15 Testing
31:53 Replacing the Keyboard Membrane
34:28 Final Testing
36:28 Thank you & Goodbye
#JanBeta #ZXSpectrum #Retrocomputing
Видео Sinclair ZX Spectrum+ Garbage Screen Repair канала Jan Beta
The Speccy was kindly donated by https://www.gee-k.net (check out the website for tons of vintage computer tinkering and more).
You can watch my restoration of this Spectrum+ here: https://youtu.be/dYJ9Akv58D0
My ZX Spectrum composite mod tutorial video: https://youtu.be/5oFMaI7nqPU
The DivMMCfuture is available from The Future Was 8-Bit here: https://www.thefuturewas8bit.com/shop/sinclair/divmmcfuture.html
The MeanWell power supply I used is available here* (REMEMBER TO REVERSE THE POLARITY!):
US: https://amzn.to/2lKv4sb
UK: https://amzn.to/2li2tdC (a slightly higher rated one)
DE: https://amzn.to/2kcaEaY
The ZX Spectrum Diagnostics software is available here: https://github.com/brendanalford/zx-diagnostics/wiki
The (brilliant!) Return of Traxtor game you see me playing during the credits is available from the author's website here (among many others): https://www.usebox.net/jjm/return-of-traxtor/
----------------------------------------------
Music by Focus 10 https://soundcloud.com/user-993847645
EQUIPMENT AND TOOLS I USE: https://kit.co/janbeta *
TWITTER: https://twitter.com/thejanbeta
PATREON: https://patreon.com/janbeta
WEBSITE: https://www.janbeta.net
TWITCH: https://www.twitch.tv/thejanbeta
LBRY: https://open.lbry.com/@janbeta:b
YT CHANNEL MEMBERSHIP: https://www.youtube.com/channel/UCftUpOO4h9EgH0eDOZtjzcA/join
Thanks for watching!
* Stuff marked with "*" contains affiliate links. You don't pay anything extra and I get a little commission from everything you buy through the links (even if you buy something different there).
TIME STAMPS:
0:00 Introduction
1:46 Disassembly & Inspection
7:08 Composite Mod
10:10 Power Supply
10:41 Garbage Screen
11:08 Cleaning RCA Connector
11:35 Checking the Voltages
14:05 Replacing the Voltage Regulator
17:58 Different Garbage!
18:23 ULA Fault?
20:53 Piggybacking RAM
24:00 Replacing RAM & Touching up Solder Joints
31:15 Testing
31:53 Replacing the Keyboard Membrane
34:28 Final Testing
36:28 Thank you & Goodbye
#JanBeta #ZXSpectrum #Retrocomputing
Видео Sinclair ZX Spectrum+ Garbage Screen Repair канала Jan Beta
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Sinclair ZX Spectrum+ Restoration & Future ProofingC64 Black Screen Repair (MT RAM Chips)Amiga 600 Retrobright and SD HarddiskAmiga 1000 Restoration | Part 1The Pi1541 Commodore Disk Drive EmulatorIssue 6a ZX Spectrum 48K Repair - From Knackered to NewCommodore 1351 Mouse RepairHow to fix ripped furniture fittings. Particle Board Furniture Repair.C64 Component Video Mod Prototype Testing48K ZX Spectrum Repair (No. 5)Atari 1040STF Restoration Part 1: The ElectronicsAmiga 1000 Restoration | Part 2TRS-80 Model 1 Level II Inspection & Power Supply BuildZX Spectrum (48K & 16K) Initial TestsCommodore 1351 Mouse RestorationMore C64/C128 Video Output Options!C64 Scrambled Video Repair"Thundercats C64" Future Proofing and PreservationZX Spectrum Issue 2 Repair and Restoration